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Lara KEA, Linares JCC, Montilla JAP, Román PÁL. Factors influencing gait performance in older adults in a dual-task paradigm. GeroScience 2024; 46:3071-3083. [PMID: 38190081 PMCID: PMC11009214 DOI: 10.1007/s11357-023-01052-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/20/2023] [Indexed: 01/09/2024] Open
Abstract
The aim of this study was to determine the effect of cognitive interference through a dual-task (DT) paradigm on gait parameters by sex or other predictive variables, such as physical fitness, health status, and cognition. A total of 125 older adults joined in this study (age, 72.42 ± 5.56 years old; 28 men and 97 women). The DT paradigm was evaluated through Comfortable Linear Gait (CLG) and Complex Gait Test (CGT). The gait parameters between single task (ST) vs. DT condition in men showed a significant reduction in speed (p < 0.001), cadence (p < 0.001), and step length (p = 0.049) and increased time to execute the CGT (p < 0.001), while women showed a decreased speed (p = 0.014), cadence (p < 0.001), and double support coefficient variation (CV) (p = 0.024) and increased single support time (p < 0.001) and CV step length (p < 0.05). In addition, women increased CGT time (p < 0.001). Furthermore, correlations between DT cost (DTC) cadence vs. Physical Activity for Elderly questionnaire (PASE) (r = - 0.399; p = 0.008), DTC single support vs. 30 s Sit to Stand Test (r = - 0.356; 0.016), DTC single support vs. Rey Auditory Verbal Learning Test-Learning curve (r = - 0.335; p = 0.023), DTC double support vs. 30 s Sit to Stand Test (r = - 0.590; p < 0.001), DTC CV step length vs. 30 s Sit to Stand (r = - 0.545; p = 0.003), and DTC CGT vs. 30 s Sit to Stand Test (r = - 0.377; p = 0.048) were found. The results of our study indicate that the gait parameters within the DT condition decreased speed and cadence, while increasing CV step length and CGT time, causing slower gait with shortened steps in men and women.
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Affiliation(s)
- Karina Elizabeth Andrade Lara
- Department of Musical, Plastic and Corporal Expression, University of Jaén, Paraje Las Lagunillas, S/N.,, 23071, Jaén, Spain
| | - José Carlos Cabrera Linares
- Department of Musical, Plastic and Corporal Expression, University of Jaén, Paraje Las Lagunillas, S/N.,, 23071, Jaén, Spain.
| | - Juan Antonio Párraga Montilla
- Department of Musical, Plastic and Corporal Expression, University of Jaén, Paraje Las Lagunillas, S/N.,, 23071, Jaén, Spain
| | - Pedro Ángel Latorre Román
- Department of Musical, Plastic and Corporal Expression, University of Jaén, Paraje Las Lagunillas, S/N.,, 23071, Jaén, Spain
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El-Sayed MM, Hawash MM, Khedr MA, Hafez SA, Salem ESAEH, Essa SA, Sayyd SM, El-Ashry AM. Cognitive flexibility's role in shaping self-perception of aging, body appreciation, and self-efficacy among community-dwelling older women. BMC Nurs 2024; 23:220. [PMID: 38561732 PMCID: PMC10983730 DOI: 10.1186/s12912-024-01874-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 03/17/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Cognitive flexibility, the capacity to adjust to new information, affects how aging is perceived. In Egyptian culture, older women's views on aging are shaped by societal gender roles and expectations. These views influence their body image and belief in their abilities, all melded by cultural standards and values. AIM Investigate the mediating role of cognitive flexibility in the relationship between self-aging perception, body appreciation, and self-efficacy among community-dwelling older women. METHODS A correlational analytical design was used on 200 women aged 60 years or older using the Cognitive Flexibility Inventory, Self-Perceptions of Aging, General Self-Efficacy Scale, and Body Appreciation Scales. Structural equation modeling was used in the analysis. RESULTS The study found that cognitive flexibility is positively related to self-perception of aging and body appreciation and is also significantly related to general self-efficacy. However, no significant relationship was found between body appreciation and general self-efficacy. Additionally, the study found that cognitive flexibility partially mediates the relationship between self-perception of aging and body appreciation and fully mediates the relationship between body appreciation and self-efficacy. CONCLUSION Cognitive flexibility is vital in the relationships between self-perceptions of aging, body appreciation, and self-efficacy among older women. Therefore, nursing interventions targeting cognitive flexibility are recommended to promote positive self-aging perceptions, body appreciation, and self-efficacy in this population.
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Affiliation(s)
- Mona Metwally El-Sayed
- Psychiatric and Mental Health Nursing Department, Faculty of Nursing, Alexandria University, Alexandria, Egypt.
| | - Manal Mohammed Hawash
- Gerontological Nursing Department, Faculty of Nursing, Alexandria University, Alexandria, Egypt
| | - Mahmoud Abdelwahab Khedr
- Psychiatric and Mental Health Nursing Department, Faculty of Nursing, Alexandria University, Alexandria, Egypt
| | - Sarah Ali Hafez
- Gerontological Nursing Department, Faculty of Nursing, Alexandria University, Alexandria, Egypt
| | - El-Saied Abd El-Hamid Salem
- Department of Fitness, Gymnastics, and Sports Shows, Faculty of Physical Education for Men, Abu Qir, Alexandria University, Alexandria, Egypt
| | - Samir Abdelnaby Essa
- Department of Physical Education and Sports Sciences, Faculty of Education, Taibah University, Madinah, 41477, Saudi Arabia
| | - Sameer Mohammed Sayyd
- Department of Physical Education and Sports Sciences, Faculty of Education, Taibah University, Madinah, 41477, Saudi Arabia
| | - Ayman Mohamed El-Ashry
- Psychiatric and Mental Health Nursing Department, Faculty of Nursing, Alexandria University, Alexandria, Egypt
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Ma CC, Lin YY, Chung YA, Park SY, Huang CCY, Chang WC, Chang HA. The two-back task leads to activity in the left dorsolateral prefrontal cortex in schizophrenia patients with predominant negative symptoms: a fNIRS study and its implication for tDCS. Exp Brain Res 2024; 242:585-597. [PMID: 38227007 DOI: 10.1007/s00221-023-06769-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/16/2023] [Indexed: 01/17/2024]
Abstract
Transcranial direct current stimulation (tDCS) over left dorsolateral prefrontal cortex (DLPFC) has shown some potential as an adjunctive intervention for ameliorating negative symptoms of schizophrenia, but its efficacy requires optimization. Recently, 'functional targeting' of stimulation holds promise for advancing tDCS efficacy by coupling tDCS with a cognitive task where the target brain regions are activated by that task and further specifically polarized by tDCS.The study used 48-channel functional near infra-red spectroscopy (fNIRS) aiming to determine a cognitive task that can effectively induce a cortical activation of the left DLPFC in schizophrenia patients with predominant negative symptoms before running a tDCS trial. Sixty schizophrenia patients with predominant negative symptoms completed measures of clinical and psychosocial functioning characteristics and assessments across cognitive domains. Hemodynamic changes during n-back working memory tasks with different cognitive loads (1-back and 2-back) and verbal fluency test (VFT) were measured using fNIRS. For n-back tasks, greater signal changes were found when the task required elevated cognitive load. One sample t-test revealed that only 2-back task elicited significant activation in left DLPFC (t = 4.23, FDR-corrected p = 0.0007). During VFT, patients failed to show significant task-related activity in left DLPFC (one sample t-test, t = -0.25, FDR-corrected p > 0.05). Our study implies that 2-back task can effectively activate left DLPFC in schizophrenia patients with predominant negative symptoms. This neurophysiologically-validated task is considered highly potential to be executed in conjunction with high-definition tDCS for "functional targeting" of the left DLPFC to treat negative symptoms in a double-blind randomized sham-control trial, registered on ClinicalTrials.gov Registry (ID: NCT05582980).
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Affiliation(s)
- Chin-Chao Ma
- Department of Psychiatry, Tri-Service General Hospital, Beitou Branch, National Defense Medical Center, No. 325, Cheng-Kung Road, Sec. 2, Nei-Hu District, Taipei, Taiwan
| | - Yen-Yue Lin
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Emergency Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Yong-An Chung
- Department of Nuclear Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sonya Youngju Park
- Department of Nuclear Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | | | - Wei-Chou Chang
- Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-An Chang
- Department of Psychiatry, Tri-Service General Hospital, Beitou Branch, National Defense Medical Center, No. 325, Cheng-Kung Road, Sec. 2, Nei-Hu District, Taipei, Taiwan.
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Mukli P, Pinto CB, Owens CD, Csipo T, Lipecz A, Szarvas Z, Peterfi A, Langley ACDCP, Hoffmeister J, Racz FS, Perry JW, Tarantini S, Nyúl‐Tóth Á, Sorond FA, Yang Y, James JA, Kirkpatrick AC, Prodan CI, Toth P, Galindo J, Gardner AW, Sonntag WE, Csiszar A, Ungvari Z, Yabluchanskiy A. Impaired Neurovascular Coupling and Increased Functional Connectivity in the Frontal Cortex Predict Age-Related Cognitive Dysfunction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303516. [PMID: 38155460 PMCID: PMC10962492 DOI: 10.1002/advs.202303516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 11/19/2023] [Indexed: 12/30/2023]
Abstract
Impaired cerebrovascular function contributes to the genesis of age-related cognitive decline. In this study, the hypothesis is tested that impairments in neurovascular coupling (NVC) responses and brain network function predict cognitive dysfunction in older adults. Cerebromicrovascular and working memory function of healthy young (n = 21, 33.2±7.0 years) and aged (n = 30, 75.9±6.9 years) participants are assessed. To determine NVC responses and functional connectivity (FC) during a working memory (n-back) paradigm, oxy- and deoxyhemoglobin concentration changes from the frontal cortex using functional near-infrared spectroscopy are recorded. NVC responses are significantly impaired during the 2-back task in aged participants, while the frontal networks are characterized by higher local and global connection strength, and dynamic FC (p < 0.05). Both impaired NVC and increased FC correlate with age-related decline in accuracy during the 2-back task. These findings suggest that task-related brain states in older adults require stronger functional connections to compensate for the attenuated NVC responses associated with working memory load.
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Heimann F, Weiss S, Müller HM. Anodal transcranial direct current stimulation (atDCS) and functional transcranial Doppler sonography (fTCD) in healthy elderly and patients with MCI: modulation of age-related changes in word fluency and language lateralization. FRONTIERS IN AGING 2024; 4:1171133. [PMID: 38414493 PMCID: PMC10896906 DOI: 10.3389/fragi.2023.1171133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 12/15/2023] [Indexed: 02/29/2024]
Abstract
Introduction: In addition to age-related changes in language, hemispheric lateralization of language functions steadily declines with age. Also, performance on word fluency tasks declines and is sensitive to the expression of dementia-related changes. The aim of this study is to evaluate the effect of anodal tDCS combined with a word fluency training on language lateralization and word fluency performance in healthy elderly subjects and in persons with mild cognitive impairment (MCI). Methods: The effect of anodal tDCS over the left inferio frontal gyrus (IFG) was measured in a group of healthy elderly up to the age of 67 years (YG, Ø = 63.9 ± 3.02), a group of healthy elderly aged 68 years and older (OG, Ø = 78.1, ± 4.85), and a group of patients with MCI (Ø = 81.18, ± 7.35) by comparing performance in phonological and semantic word fluency tasks before and after 3 days of tDCS. Half of the experimental participants received sham stimulation. In addition, language lateralization was determined using a lateralization index (LI) measured with functional transcranial Doppler sonography (fTCD) before and after the stimulation period. Results: Anodal tDCS was associated with significantly higher scores in phonological but not semantic word fluency in both YG and OG. In MCI patients, no difference was measured between the tDCS and sham groups in either word fluency task. fTCD showed significantly increased left lateralization in all three groups after the training phase. However, this effect was independent of tDCS and the degree of lateralization could not be predicted by word fluency performance in any of the groups. Discussion: Phonological word fluency can be increased with atDCS in healthy elderly people by stimulating the IFG in a 3-day training. When cognitive decline has reached a certain stage, as is the case with MCI, this paradigm does not seem to be effective enough.
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Affiliation(s)
- Florian Heimann
- Experimental Neurolinguistics Group, Bielefeld University, Bielefeld, Germany
| | - Sabine Weiss
- Experimental Neurolinguistics Group, Bielefeld University, Bielefeld, Germany
- Center for Cognitive Interaction Technology (CITEC), Bielefeld University, Bielefeld, Germany
- Clinical Linguistics, Bielefeld University, Bielefeld, Germany
| | - Horst M. Müller
- Experimental Neurolinguistics Group, Bielefeld University, Bielefeld, Germany
- Center for Cognitive Interaction Technology (CITEC), Bielefeld University, Bielefeld, Germany
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Kim M, Jang S, Lee D, Lee S, Gwak J, Jun SC, Kim JG. A comprehensive research setup for monitoring Alzheimer's disease using EEG, fNIRS, and Gait analysis. Biomed Eng Lett 2024; 14:13-21. [PMID: 38186957 PMCID: PMC10769970 DOI: 10.1007/s13534-023-00306-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/10/2023] [Accepted: 07/12/2023] [Indexed: 01/09/2024] Open
Abstract
Alzheimer's disease (AD) has a detrimental impact on brain function, affecting various aspects such as cognition, memory, language, and motor skills. Previous research has dominantly used electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) to individually measure brain signals or combine the two methods to target specific brain functions. However, comprehending Alzheimer's disease requires monitoring various brain functions rather than focusing on a single function. This paper presents a comprehensive research setup for a monitoring platform for AD. The platform incorporates a 32-channel dry electrode EEG, a custom-built four-channel fNIRS, and gait monitoring using a depth camera and pressure sensor. Various tasks are employed to target multiple brain functions. The paper introduced the detailed instrumentation of the fNIRS system, which measures the prefrontal cortex, outlines the experimental design targeting various brain functioning programmed in BCI2000 for visualizing EEG signals synchronized with experimental stimulation, and describes the gait monitoring hardware and software and protocol design. The ultimate goal of this platform is to develop an easy-to-perform brain and gait monitoring method for elderly individuals and patients with Alzheimer's disease. Supplementary Information The online version contains supplementary material available at 10.1007/s13534-023-00306-7.
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Affiliation(s)
- Minhee Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005 Republic of Korea
| | - Sehyeon Jang
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005 Republic of Korea
| | - Donjung Lee
- Korea Photonics Technology Institute, Gwangju, 61007 Republic of Korea
| | - Seungchan Lee
- Department of Medical Device, Korea Institute of Machinery & Materials, Daegu, 42994 Republic of Korea
| | - Jeonghwan Gwak
- Department of Software, Korea National University of Transportation, Chungju, 27469 Republic of Korea
| | - Sung Chan Jun
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005 Republic of Korea
| | - Jae Gwan Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005 Republic of Korea
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Wang C, Wang J, Wu X, Liu T, Wang F, Zhou H, Chen C, Shi L, Ma L, Liu T, Li C. Comprehensive review on sexual dimorphism to improve scalp acupuncture in nervous system disease. CNS Neurosci Ther 2024; 30:e14447. [PMID: 37665197 PMCID: PMC10805401 DOI: 10.1111/cns.14447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/31/2023] [Accepted: 08/20/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND With the development of modern medicine, the Traditional Chinese Medicine (TCM) combined with western medicine began to be produced and applied. Scalp acupuncture (SA) as a Chinese medicine based on neurological theory, has a great advantage compared with TCM in the treatment of nervous system diseases. METHOD In this paper, we analyze the physiological and pathological manifestations of sexual dimorphism (SD) to illustrate the necessity of SD treatment. In addition, we review the factors that can affect SD and analyze in physiological structure, function, and pathological neurons. Diseases (pathological basis, pathological manifestations, and incidence) and factors leading to gender differences, which to analyze the possibility of gender differences in SA. RESULT Furthermore, we creatively a new insight of SD-SA and provide the complete SD treatment cases on the basis of the existing SA in different kinds of diseases including stroke, migraine, attention deficit hyperactivity disorder (ADHD), and depression. CONCLUSION In summary, we believe that it is feasible to improve the clinical effectiveness of SA, which is able to promote the development of SA, and then provides an actionable evidence for the promotion of precision medicine in the future.
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Affiliation(s)
- Chaojie Wang
- Department of First Clinical Medical CollegeHeilongjiang University of Chinese MedicineHeilongjiangChina
| | - Jiening Wang
- Department of RehabilitationShanghai Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xubo Wu
- Department of RehabilitationShanghai Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina
- School of Rehabilitation ScienceShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Tao Liu
- Department of BioengineeringImperial College LondonLondonUK
| | - Feng Wang
- First Affiliated Hospital of Heilongjiang University of Chinese MedicineHarbinChina
| | - Huanxia Zhou
- Department of RehabilitationShanghai Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Chen Chen
- Second Affiliated Hospital of Heilongjiang University of Chinese MedicineHarbinChina
| | - Lijuan Shi
- School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina
| | - Lin Ma
- First Affiliated Hospital of Heilongjiang University of Chinese MedicineHarbinChina
| | - Tiantian Liu
- Department of RehabilitationShanghai Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Cancheng Li
- School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina
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Husain SF, Chiang SK, Vasu AA, Goh CP, McIntyre RS, Tang TB, Tran BX, Dang THT, Nguyen TT, Ho RC, Ho CS. Functional Near-Infrared Spectroscopy of English-Speaking Adults With Attention-Deficit/Hyperactivity Disorder During a Verbal Fluency Task. J Atten Disord 2023; 27:1448-1459. [PMID: 37341192 DOI: 10.1177/10870547231180111] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
OBJECTIVE Functional near-infrared spectroscopy (fNIRS) provides direct and quantitative assessment of cortical hemodynamic response. It has been used to identify neurophysiological alterations in medication-naïve adults with attention-deficit/hyperactivity disorder (ADHD). Hence, this study aimed to distinguish both medication-naïve and medicated adults with ADHD from healthy controls (HC). METHOD 75 HCs, 75 medication-naïve, and 45 medicated patients took part in this study. fNIRS signals during a verbal fluency task (VFT) were acquired using a 52-channel system and relative oxy-hemoglobin changes in the prefrontal cortex were quantified. RESULTS Prefrontal cortex hemodynamic response was lower in patients than HCs (p ≤ ≤.001). Medication-naïve and medicated patients did not differ in hemodynamic response or symptom severity (p > .05). fNIRS measurements were not associated with any clinical variables (p > .05). 75.8% patients and 76% HCs were correctly classified using hemodynamic response. CONCLUSION fNIRS may be a potential diagnostic tool for adult ADHD. These findings need to be replicated in larger validation studies.
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Affiliation(s)
| | | | | | | | - Roger S McIntyre
- University Health Network, Toronto, ON, Canada
- University of Toronto, ON, Canada
- Brain and Cognition Discovery Foundation, Toronto, ON, Canada
| | - Tong Boon Tang
- University Teknologi PETRONAS, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Bach X Tran
- Hanoi Medical University, Dong Da, Vietnam
- Johns Hopkins University, Baltimore, MD, USA
| | - Trang H T Dang
- Institute of Health Economics and Technology, Hanoi, Vietnam
| | - Tham T Nguyen
- Duy Tan University, Da Nang, Vietnam
- Nguyen Tat Thanh University, Ho Chi Minh, Vietnam
| | - Roger C Ho
- National University of Singapore, Singapore
| | - Cyrus S Ho
- National University of Singapore, Singapore
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Wang Q, Shin B, Oh S, Shin YS, Na DL, Kim KW. A pilot study to explore the effect of udenafil on cerebral hemodynamics in older adults. Ann Clin Transl Neurol 2023; 10:933-943. [PMID: 37013976 PMCID: PMC10270257 DOI: 10.1002/acn3.51774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 04/05/2023] Open
Abstract
OBJECTIVE Phosphodiesterase-5 inhibitors (PDE5Is) enhance vasodilation. We investigated the effects of PDE5I on cerebral hemodynamics during cognitive tasks using functional near-infrared spectroscopy (fNIRS). METHODS This study used a crossover design. Twelve cognitively healthy men participants (mean age, 59 ± 3 years; range, 55-65 years) were recruited and randomly assigned to the experimental or control arm, then the experimental and control arm were exchanged after 1 week. Udenafil 100 mg was administered to participants in the experimental arm once daily for 3 days. We measured the fNIRS signal during the resting state and four cognitive tasks three times for each participant: at baseline, in the experimental arm, and in the control arm. RESULTS Behavioral data did not show a significant difference between the experimental and control arms. The fNIRS signal showed significant decreases in the experimental arm compared to the control arm during several cognitive tests: verbal fluency test (left dorsolateral prefrontal cortex, T = -3.02, p = 0.014; left frontopolar cortex, T = -4.37, p = 0.002; right dorsolateral prefrontal cortex, T = -2.59, p = 0.027), Korean-color word Stroop test (left orbitofrontal cortex, T = -3.61, p = 0.009), and social event memory test (left dorsolateral prefrontal cortex, T = -2.35, p = 0.043; left frontopolar cortex, T = -3.35, p = 0.01). INTERPRETATION Our results showed a paradoxical effect of udenafil on cerebral hemodynamics in older adults. This contradicts our hypothesis, but it suggests that fNIRS is sensitive to changes in cerebral hemodynamics in response to PDE5Is.
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Affiliation(s)
- Qi Wang
- Medical SchoolJeonbuk National UniversityJeonjuSouth Korea
| | - Byoung‐Soo Shin
- Department of NeurologyJeonbuk National University Medical School and HospitalJeonjuSouth Korea
- Research Institute of Clinical Medicine of Jeonbuk National University‐Biomedical Research Institute of Jeonbuk National University HospitalJeonjuSouth Korea
| | - Sun‐Young Oh
- Department of NeurologyJeonbuk National University Medical School and HospitalJeonjuSouth Korea
- Research Institute of Clinical Medicine of Jeonbuk National University‐Biomedical Research Institute of Jeonbuk National University HospitalJeonjuSouth Korea
| | - Yu Seob Shin
- Research Institute of Clinical Medicine of Jeonbuk National University‐Biomedical Research Institute of Jeonbuk National University HospitalJeonjuSouth Korea
- Department of UrologyJeonbuk National University Medical School and HospitalJeonjuSouth Korea
| | - Duk L. Na
- Department of NeurologySungkyunkwan University School of Medicine, Samsung Medical CenterSeoulSouth Korea
| | - Ko Woon Kim
- Department of NeurologyJeonbuk National University Medical School and HospitalJeonjuSouth Korea
- Research Institute of Clinical Medicine of Jeonbuk National University‐Biomedical Research Institute of Jeonbuk National University HospitalJeonjuSouth Korea
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Listabarth S, Groemer M, Waldhoer T, Vyssoki B, Pruckner N, Vyssoki S, Glahn A, König-Castillo DM, König D. Cognitive decline and alcohol consumption in the aging population-A longitudinal analysis of the Survey of Health, Ageing and Retirement in Europe. Eur Psychiatry 2022; 65:e83. [PMID: 36398412 PMCID: PMC9748981 DOI: 10.1192/j.eurpsy.2022.2344] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Prevalence of cognitive decline and dementia is rising globally, with more than 10 million new cases every year. These conditions cause a significant burden for individuals, their caregivers, and health care systems. As no causal treatment for dementia exists, prevention of cognitive decline is of utmost importance. Notably, alcohol is among the most significant modifiable risk factors for cognitive decline. METHODS Longitudinal data across 15 years on 6,967 individuals of the Survey of Health, Ageing and Retirement in Europe were used to analyze the effect of alcohol consumption and further modifiable (i.e., smoking, depression, and educational obtainment) and non-modifiable risk factors (sex and age) on cognitive functioning (i.e., memory and verbal fluency). For this, a generalized estimating equation linear model was estimated for every cognitive test domain assessed. RESULTS Consistent results were revealed in all three regression models: A nonlinear association between alcohol consumption and cognitive decline was found-moderate alcohol intake was associated with overall better global cognitive function than low or elevated alcohol consumption or complete abstinence. Furthermore, female sex and higher educational obtainment were associated with better cognitive function, whereas higher age and depression were associated with a decline in cognitive functioning. No significant association was found for smoking. CONCLUSION Our data indicate that alcohol use is a relevant risk factor for cognitive decline in older adults. Furthermore, evidence-based therapeutic concepts to reduce alcohol consumption exist and should be of primary interest in prevention measures considering the aging European population.
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Affiliation(s)
- Stephan Listabarth
- Clinical Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Magdalena Groemer
- Clinical Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Thomas Waldhoer
- Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Benjamin Vyssoki
- Clinical Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Nathalie Pruckner
- Clinical Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Sandra Vyssoki
- Department of Health Sciences, St. Pölten University of Applied Sciences, Sankt Pölten, Austria
| | - Alexander Glahn
- Department for Psychiatry, Social Psychiatry and Psychotherapy, Medical University of Hannover, Hannover, Germany
| | | | - Daniel König
- Clinical Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
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11
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Effects of aging on functional connectivity in a neurodegenerative risk cohort: resting state versus task measurement using near-infrared spectroscopy. Sci Rep 2022; 12:11262. [PMID: 35788629 PMCID: PMC9253312 DOI: 10.1038/s41598-022-13326-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 05/16/2022] [Indexed: 11/23/2022] Open
Abstract
Changes in functional brain organization are considered to be particularly sensitive to age-related effects and may precede structural cognitive decline. Recent research focuses on aging processes determined by resting state (RS) functional connectivity (FC), but little is known about differences in FC during RS and cognitive task conditions in elderly participants. The purpose of this study is to compare FC within and between the cognitive control (CCN) and dorsal attention network (DAN) at RS and during a cognitive task using functional near-infrared spectroscopy (fNIRS). In a matched, neurodegenerative high-risk cohort comprising early (n = 98; 50–65 y) and late (n = 98; 65–85 y) elder subjects, FC was measured at RS and during performance of the Trail Making Test (TMT) via fNIRS. Both, under RS and task conditions our results revealed a main effect for age, characterized by reduced FC for late elder subjects within the left inferior frontal gyrus. During performance of the TMT, negative correlations of age and FC were confirmed in various regions of the CCN and DAN. For the whole sample, FC of within-region connections was elevated, while FC between regions was decreased at RS. The results confirm a reorganization of functional brain connectivity with increasing age and cognitive demands.
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12
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Yeung MK. Frontal cortical activation during emotional and non-emotional verbal fluency tests. Sci Rep 2022; 12:8497. [PMID: 35589939 PMCID: PMC9120192 DOI: 10.1038/s41598-022-12559-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/06/2022] [Indexed: 01/19/2023] Open
Abstract
There has been growing recognition of the utility of combining the verbal fluency test and functional near-infrared spectroscopy (fNIRS) to assess brain functioning and to screen for psychiatric disorders. Recently, an emotional analogue of the semantic fluency test (SFT) has been developed that taps partly different processes from conventional verbal fluency tests. Nevertheless, neural processing during the emotional SFT remains elusive. Here, fNIRS was used to compare frontal cortical activation during emotional and non-emotional SFTs. The goal was to determine whether the emotional SFT activated overlapping yet distinct frontal cortical regions compared with the conventional, non-emotional SFT. Forty-three healthy young adults performed the emotional and non-emotional SFTs while hemodynamic changes in the bilateral frontopolar, dorsomedial, dorsolateral, ventrolateral, and posterolateral frontal cortices were measured by fNIRS. There were significant increases in oxyhemoglobin concentration and significant decreases in deoxyhemoglobin concentration (i.e., activation) in frontopolar, dorsolateral, and ventrolateral frontal regions during both the non-emotional and emotional SFTs. Also, complementary analyses conducted on changes in the two chromophores using classical and Bayesian hypothesis testing suggested that comparable frontal cortical regions were activated while performing the two tests. This similarity in activation occurred in a context where non-emotional and emotional SFT performances exhibited differential relationships with the overall level of negative mood symptoms. In conclusion, frontal cortical activation during the emotional SFT is similar to that during the conventional, non-emotional SFT. Given that there is evidence for discriminant validity for the emotional SFT, the neural mechanisms underlying the uniqueness of this test warrant further investigation.
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Affiliation(s)
- Michael K Yeung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China. .,University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong, China.
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Wang D, Xu C, Wang W, Lu H, Zhang J, Liang F, Li X. The Effect of APOE ɛ4 on the Functional Connectivity in Frontoparietal Network in Hypertensive Patients. Brain Sci 2022; 12:brainsci12050515. [PMID: 35624902 PMCID: PMC9138811 DOI: 10.3390/brainsci12050515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/06/2022] [Accepted: 04/15/2022] [Indexed: 02/01/2023] Open
Abstract
Allele 4 of the apolipoprotein E gene (APOE ε4) and hypertension are considered risk factors for Alzheimer’s Disease (AD). The detection of differences in cognitive function and brain networks between hypertensive patients who are APOE ε4 carriers and non-carriers may help in understanding how hypertension and risk genes cumulatively impair brain function, which could provide critical insights into the genetic mechanism by which hypertension serves as a potential risk factor for cognitive decline and even AD. Using behavioral data from 233 elderly hypertensive patients and neuroimaging data from 38 of them from Beijing, China; the study aimed to assess the effects of APOE ε4 on cognition and to explore related changes in functional connectivity. Cognitively, the patients with APOE ε4 showed decreased executive function, memory and language. In the MRI sub-cohort, the frontoparietal networks in the APOE ε4 carrier group exhibited an altered pattern, mainly in the left precentral regions, inferior frontal lobe and angular gyrus. More importantly, the decline of cognitive function was correlated with abnormal FC in the left precentral regions in APOE ε4 carriers. APOE ε4 aggravated the dysfunction in frontal and parietal regions in hypertensive patients. This highlights the importance of brain protection in hypertensive patients, especially those with a genetic risk of AD.
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Affiliation(s)
- Dandan Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; (D.W.); (C.X.); (W.W.); (H.L.)
- Beijing Aging Brain Rejuvenation Initiative (BABRI) Center, Beijing Normal University, Beijing 100875, China
| | - Chang Xu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; (D.W.); (C.X.); (W.W.); (H.L.)
- Beijing Aging Brain Rejuvenation Initiative (BABRI) Center, Beijing Normal University, Beijing 100875, China
| | - Wenxiao Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; (D.W.); (C.X.); (W.W.); (H.L.)
- Beijing Aging Brain Rejuvenation Initiative (BABRI) Center, Beijing Normal University, Beijing 100875, China
| | - Hui Lu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; (D.W.); (C.X.); (W.W.); (H.L.)
- Beijing Aging Brain Rejuvenation Initiative (BABRI) Center, Beijing Normal University, Beijing 100875, China
| | - Junying Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Traditional Chinese Medicine, Beijing 100700, China;
| | - Furu Liang
- Department of Neurology, Baotou Central Hospital, Baotou 014040, China;
| | - Xin Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; (D.W.); (C.X.); (W.W.); (H.L.)
- Beijing Aging Brain Rejuvenation Initiative (BABRI) Center, Beijing Normal University, Beijing 100875, China
- Correspondence:
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Husain SF, McIntyre RS, Tang TB, Abd Latif MH, Tran BX, Linh VG, Thao TPN, Ho CS, Ho RC. Functional near-infrared spectroscopy during the verbal fluency task of English-Speaking adults with mood disorders: A preliminary study. J Clin Neurosci 2021; 94:94-101. [PMID: 34863469 DOI: 10.1016/j.jocn.2021.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/10/2021] [Accepted: 10/05/2021] [Indexed: 02/07/2023]
Abstract
Functional near-infrared spectroscopy (fNIRS) provides a direct and objective assessment of cerebral cortex function. It may be used to determine neurophysiological differences between psychiatric disorders with overlapping symptoms, such as major depressive disorder (MDD) and bipolar disorder (BD). Therefore, this preliminary study aimed to compare fNIRS signals during the verbal fluency task (VFT) of English-speaking healthy controls (HC), patients with MDD and patients with BD. Fifteen HCs, 15 patients with MDD and 15 patients with BD were recruited. Groups were matched for age, gender, ethnicity and education. Relative oxy-haemoglobin and deoxy-haemoglobin changes in the frontotemporal cortex was monitored with a 52-channel fNIRS system. Integral values of the frontal and temporal regions were derived as a measure cortical haemodynamic response magnitude. Both patient groups had lower frontal and temporal region integral values than HCs, and patients with MDD had lower frontal region integral value than patients with BD. Moreover, patients could be differentiated from HCs using the frontal and temporal integral values, and patient groups could be differentiated using the frontal region integral values. VFT performance, clinical history and symptom severity were not associated with integral values. These results suggest that prefrontal cortex haemodynamic dysfunction occurs in mood disorders, and it is more extensive in MDD than BD. The fNIRS-VFT paradigm may be a potential tool for differentiating MDD from BD in clinical settings, and these findings need to be verified in a larger sample of English-speaking patients with mood disorders.
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Affiliation(s)
- Syeda Fabeha Husain
- Institute of Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore; Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada; Brain and Cognition Discovery Foundation, Toronto, ON, Canada
| | - Tong-Boon Tang
- Centre for Intelligent Signal and Imaging Research (CISIR), University Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Muhamad Hafiz Abd Latif
- Centre for Intelligent Signal and Imaging Research (CISIR), University Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Bach X Tran
- Institute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Viet Nam; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Vu Gia Linh
- Institute for Global Health Innovations, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Medicine, Duy Tan University, Da Nang 550000, Viet Nam
| | - Thi Phuong Nguyen Thao
- Institute for Global Health Innovations, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Medicine, Duy Tan University, Da Nang 550000, Viet Nam
| | - Cyrus S Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Roger C Ho
- Institute of Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore; Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Yeung MK, Lee TL, Chan AS. Depressive and anxiety symptoms are related to decreased lateral prefrontal cortex functioning during cognitive control in older people. Biol Psychol 2021; 166:108224. [PMID: 34785277 DOI: 10.1016/j.biopsycho.2021.108224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/26/2021] [Accepted: 11/07/2021] [Indexed: 11/18/2022]
Abstract
Some studies have found a relationship between negative emotional symptoms and decreased lateral PFC functioning during a cognitive control task in healthy younger adults. Here, we asked whether this relationship is also present in the general older population and across different functional domains of the lateral PFC. Thirty-six older people (13 males) self-reported their recent depressive and anxiety symptoms. They also took two cognitive control tasks known to differentially engage the lateral frontoparietal network (digit n-back task) and the lateral frontotemporal network (Category Fluency Test) while hemodynamic changes in the PFC were monitored by functional near-infrared spectroscopy (fNIRS). Both depressive and anxiety symptoms were associated with decreased activation in the bilateral lateral PFC during cognitive control performance. Interestingly, these relationships were driven by the n-back task. Our findings suggest that depressive and anxiety symptoms are related to decreased lateral PFC functioning in particular domains of cognitive control among older people.
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Affiliation(s)
- Michael K Yeung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Tsz L Lee
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
| | - Agnes S Chan
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China; Research Center for Neuropsychological Well-being, The Chinese University of Hong Kong, Hong Kong, China.
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Cortical hemodynamic mechanisms of reversal learning using high-resolution functional near-infrared spectroscopy: A pilot study. Neurophysiol Clin 2021; 51:409-424. [PMID: 34481708 DOI: 10.1016/j.neucli.2021.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES Reversal learning is widely used to analyze cognitive flexibility and characterize behavioral abnormalities associated with impulsivity and disinhibition. Recent studies using fMRI have focused on regions involved in reversal learning with negative and positive reinforcers. Although the frontal cortex has been consistently implicated in reversal learning, few studies have focused on whether reward and punishment may have different effects on lateral frontal structures in these tasks. METHODS During this pilot study on eight healthy subjects, we used functional near infra-red spectroscopy (fNIRS) to characterize brain activity dynamics and differentiate the involvement of frontal structures in learning driven by reward and punishment. RESULTS We observed functional hemispheric asymmetries between punishment and reward processing by fNIRS following reversal of a learned rule. Moreover, the left dorsolateral prefrontal cortex (l-DLPFC) and inferior frontal gyrus (IFG) were activated under the reward condition only, whereas the orbito-frontal cortex (OFC) was significantly activated under the punishment condition, with a tendency towards activation for the right cortical hemisphere (r-DLPFC and r-IFG). Our results are compatible with the suggestion that the DLPFC is involved in the detection of contingency change. We propose a new representation for reward and punishment, with left lateralization for the reward process. CONCLUSIONS The results of this pilot study provide insights into the indirect neural mechanisms of reversal learning and behavioral flexibility and confirm the use of fNIRS imaging in reversal-learning tasks as a translational strategy, particularly in subjects who cannot undergo fMRI recordings.
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Wei Y, Chen Q, Curtin A, Tu L, Tang X, Tang Y, Xu L, Qian Z, Zhou J, Zhu C, Zhang T, Wang J. Functional near-infrared spectroscopy (fNIRS) as a tool to assist the diagnosis of major psychiatric disorders in a Chinese population. Eur Arch Psychiatry Clin Neurosci 2021; 271:745-757. [PMID: 32279143 DOI: 10.1007/s00406-020-01125-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/30/2020] [Indexed: 01/18/2023]
Abstract
Advances in neuroimaging have promised the development of specific and objective biomarkers for the diagnosis and treatment of psychiatric disorders. Recently, functional near-infrared spectroscopy (fNIRS) has been used during cognitive tasks to measure cortical dysfunction associated with mental illnesses such as Schizophrenia (SCH), Major-Depressive disorder (MD) and Bipolar Disorder (BD). We investigated the ability of fNIRS as a clinically viable tool to successfully distinguish healthy individuals from those with major psychiatric disorders. 316 patients with major psychiatric disorders (198 SCH/54 MD/64 BP) and 101 healthy controls were included in this study. Changes in oxygenated-hemoglobin during a Chinese language verbal fluency test were measured using a 52-channel fNIRS machine over the bilateral temporal and frontal lobe areas. We evaluated the ability of two task-evoked features selected from prior studies the Integral and Centroid values, to identify individuals with major diagnoses. Both the integral value of frontal and centroid value of temporal showed sensitivity in classifying individuals with mental disorders from healthy controls. However, using a combined index featuring both the integral value and centroid value to differentiate psychiatric disorders from healthy controls with an AUC of 0.913, differentiate individuals with mood disorders from healthy controls showed an AUC of 0.899, while for schizophrenia the AUC was 0.737. Our data suggest that fNIRS can be used as a candidate biomarker during differential diagnosis individuals with mood or psychosis disorders and offer a step towards individualization of treatment.
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Affiliation(s)
- YanYan Wei
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China
| | - Qi Chen
- The 102nd Hospital of the Liberation of Army, Changzhou, 213003, People's Republic of China
| | - Adrian Curtin
- School of Biomedical Engineering & Health Sciences, Drexel University, Philadelphia, PA, 19104, USA
- Med-X Institute, Shanghai Jiao Tong University, Shanghai, 200300, People's Republic of China
| | - Li Tu
- The 102nd Hospital of the Liberation of Army, Changzhou, 213003, People's Republic of China
| | - Xiaochen Tang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China
| | - YingYing Tang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China
| | - LiHua Xu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China
| | - ZhenYing Qian
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China
| | - Jie Zhou
- Shanghai Med-X Engineering Research Center, The School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, People's Republic of China
| | - ChaoZhe Zhu
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - TianHong Zhang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wanping Nan Road, Shanghai, 200030, People's Republic of China.
| | - JiJun Wang
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Bio-X Insitute, Shanghai, People's Republic of China.
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Zohdi H, Egli R, Guthruf D, Scholkmann F, Wolf U. Color-dependent changes in humans during a verbal fluency task under colored light exposure assessed by SPA-fNIRS. Sci Rep 2021; 11:9654. [PMID: 33958616 PMCID: PMC8102618 DOI: 10.1038/s41598-021-88059-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/01/2021] [Indexed: 02/03/2023] Open
Abstract
Light evokes robust visual and nonvisual physiological and psychological effects in humans, such as emotional and behavioral responses, as well as changes in cognitive brain activity and performance. The aim of this study was to investigate how colored light exposure (CLE) and a verbal fluency task (VFT) interact and affect cerebral hemodynamics, oxygenation, and systemic physiology as determined by systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS). 32 healthy adults (17 female, 15 male, age: 25.5 ± 4.3 years) were exposed to blue and red light for 9 min while performing a VFT. Before and after the CLE, subjects were in darkness. We found that this long-term CLE-VFT paradigm elicited distinct changes in the prefrontal cortex and in most systemic physiological parameters. The subjects' performance depended significantly on the type of VFT and the sex of the subject. Compared to red light, blue evoked stronger responses in cerebral hemodynamics and oxygenation in the visual cortex. Color-dependent changes were evident in the recovery phase of several systemic physiological parameters. This study showed that the CLE has effects that endure at least 15 min after cessation of the CLE. This underlines the importance of considering the persistent influence of colored light on brain function, cognition, and systemic physiology in everyday life.
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Affiliation(s)
- Hamoon Zohdi
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Rahel Egli
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Daniel Guthruf
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Felix Scholkmann
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
- Biomedical Optics Research Laboratory, Neonatology Research, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091, Zurich, Switzerland
| | - Ursula Wolf
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland.
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Veit R, Schag K, Schopf E, Borutta M, Kreutzer J, Ehlis AC, Zipfel S, Giel KE, Preissl H, Kullmann S. Diminished prefrontal cortex activation in patients with binge eating disorder associates with trait impulsivity and improves after impulsivity-focused treatment based on a randomized controlled IMPULS trial. NEUROIMAGE-CLINICAL 2021; 30:102679. [PMID: 34215149 PMCID: PMC8102655 DOI: 10.1016/j.nicl.2021.102679] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 01/18/2023]
Abstract
Persons with binge eating disorder show increased impulsivity. We investigated cognitive control to food cues using fNIRS. Compared to healthy controls, binge eaters show weaker activation of the prefrontal cortex. After behavioral therapy, binge eaters increase prefrontal cortex activation.
Background Behavioral and cognitive control are vital for healthy eating behavior. Patients with binge eating disorder (BED) suffer under recurrent binge eating episodes accompanied by subjective loss of control that results, among other factors, from increased impulsivity. Methods In the current study, we investigated the frontal network using functional near-infrared spectroscopy (fNIRS) during a food specific go/nogo task to assess response inhibition in 24 patients with BED (BMI range 22.6–59.7 kg/m2) compared to 12 healthy controls (HC) (BMI range 20.9–27 kg/m2). Patients with BED were invited to undergo fNIRS measurements before an impulsivity-focused cognitive behavioral group treatment, directly after this treatment and 3 months afterwards. As this was a planned subgroup analysis of the randomized controlled IMPULS trial, patients with BED were randomized either to the treatment group (n = 14) or to a control group (n = 10). The treatment group received 8 weekly sessions of the IMPULS treatment. Results We found a significant response inhibition effect (nogo minus go), in terms of an increased oxygenated hemoglobin response in the bilateral prefrontal cortex in both groups. The greatest response was observed when participants were instructed to go for healthy and withhold their response to unhealthy high caloric food cues. The healthy nogo condition failed to show a significant prefrontal inhibitory response, which was probably related to the task design, as the condition was considered more demanding. BED patients, especially those with higher trait impulsivity, showed a weaker activation of the prefrontal cortex during response inhibition, predominantly in the right hemisphere. Interestingly, three months after the treatment, patients of the treatment group increased their right prefrontal cortex activity during response inhibition. Likewise, increased prefrontal cortex activation correlated with decreased trait impulsivity after treatment. Conclusions Our results suggest that patients with BED have limited resources to activate the prefrontal cortex when asked to inhibit a reaction onto food-specific stimuli. However, this effect could be partly driven by differences in BMI between the HC and BED group. Cognitive-behavioral therapy targeting impulsive eating behavior may improve prefrontal cortex recruitment during response inhibition.
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Affiliation(s)
- Ralf Veit
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany; German Center for Diabetes Research (DZD), Tübingen, Germany
| | - Kathrin Schag
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Germany; Center of Excellence for Eating Disorders Tübingen (COMET), Tübingen, Germany
| | - Eric Schopf
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany
| | - Maike Borutta
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany; German Center for Diabetes Research (DZD), Tübingen, Germany
| | - Jann Kreutzer
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany
| | - Ann-Christine Ehlis
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Germany
| | - Stephan Zipfel
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Germany; Center of Excellence for Eating Disorders Tübingen (COMET), Tübingen, Germany
| | - Katrin E Giel
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Germany; Center of Excellence for Eating Disorders Tübingen (COMET), Tübingen, Germany
| | - Hubert Preissl
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany; German Center for Diabetes Research (DZD), Tübingen, Germany; Department of Internal Medicine IV, Division of Diabetology, Endocrinology and Nephrology, University Hospital Tübingen, Germany; Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany; Institute of Pharmaceutical Sciences, Department of Pharmacy and Biochemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Stephanie Kullmann
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany; German Center for Diabetes Research (DZD), Tübingen, Germany; Department of Internal Medicine IV, Division of Diabetology, Endocrinology and Nephrology, University Hospital Tübingen, Germany.
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Zohdi H, Scholkmann F, Wolf U. Individual Differences in Hemodynamic Responses Measured on the Head Due to a Long-Term Stimulation Involving Colored Light Exposure and a Cognitive Task: A SPA-fNIRS Study. Brain Sci 2021; 11:54. [PMID: 33466405 PMCID: PMC7824905 DOI: 10.3390/brainsci11010054] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/20/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022] Open
Abstract
When brain activity is measured by neuroimaging, the canonical hemodynamic response (increase in oxygenated hemoglobin ([O2Hb]) and decrease in deoxygenated hemoglobin ([HHb]) is not always seen in every subject. The reason for this intersubject-variability of the responses is still not completely understood. This study is performed with 32 healthy subjects, using the systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS) approach. We investigate the intersubject variability of hemodynamic and systemic physiological responses, due to a verbal fluency task (VFT) under colored light exposure (CLE; blue and red). Five and seven different hemodynamic response patterns were detected in the subgroup analysis of the blue and red light exposure, respectively. We also found that arterial oxygen saturation and mean arterial pressure were positively correlated with [O2Hb] at the prefrontal cortex during the CLE-VFT independent of the color of light and classification of the subjects. Our study finds that there is substantial intersubject-variability of cerebral hemodynamic responses, which is partially explained by subject-specific systemic physiological changes induced by the CLE-VFT. This means that both subgroup analyses and the additional assessment of systemic physiology are of crucial importance to achieve a comprehensive understanding of the effects of a CLE-VFT on human subjects.
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Affiliation(s)
- Hamoon Zohdi
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
| | - Felix Scholkmann
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
- Biomedical Optics Research Laboratory, Neonatology Research, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Ursula Wolf
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
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21
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Vonk JMJ, Bouteloup V, Mangin J, Dubois B, Blanc F, Gabelle A, Ceccaldi M, Annweiler C, Krolak‐Salmon P, Belin C, Rivasseau‐Jonveaux T, Julian A, Sellal F, Magnin E, Chupin M, Habert M, Chêne G, Dufouil C. Semantic loss marks early Alzheimer's disease-related neurodegeneration in older adults without dementia. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2020; 12:e12066. [PMID: 32775598 PMCID: PMC7403823 DOI: 10.1002/dad2.12066] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To assess progression of semantic loss in early stages of cognitive decline using semantic and letter fluency performance, and its relation with Alzheimer's disease (AD)-specific neurodegeneration using longitudinal multimodal neuroimaging measures. METHODS Change in verbal fluency was analyzed among 2261 non-demented individuals with a follow-up diagnosis of no mild cognitive impairment (MCI), amnestic MCI (aMCI), non-amnestic MCI (naMCI), or incident dementia, using linear mixed models across 4 years of follow-up, and relations with magnetic resonance imaging (MRI; n = 1536) and 18F-fluorodeoxyglucose brain positron emission tomography (18F-FDG-PET) imaging (n = 756) using linear regression models across 2 years of follow-up. RESULTS Semantic fluency declined-fastest in those at higher risk for AD (apolipoprotein E [APOE] e4 carriers, Clinical Dementia Rating score of .5, aMCI, or incident dementia)-while letter fluency did not except for those with incident dementia. Lower baseline semantic fluency was associated with an increase in white matter hyperintensities and total mean cortical thinning over time, and regionally with less hippocampal volume as well as more cortical thinning and reduced 18F-FDG-PET uptake in the inferior parietal lobule, entorhinal cortex, isthmus cingulate, and precuneus-posterior cingulate area. In contrast, baseline letter fluency was not associated with change in total nor regional neurodegeneration. Whole-brain neurodegeneration over time was associated with faster decline in both fluencies, while AD-specific regions were associated with a faster rate of decline in semantic but not letter fluency. INTERPRETATION This study provides strong evidence of distinctive degeneration of semantic abilities early on in relation to both cognitive decline and AD-specific neurodegeneration.
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Affiliation(s)
- Jet M. J. Vonk
- Taub Institute for Research on Alzheimer's Disease and the Aging BrainDepartment of NeurologyCollege of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Julius Center for Health Sciences and Primary Care, Department of EpidemiologyUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Vincent Bouteloup
- Centre Inserm U1219d'Epidémiologie et de Développement (ISPED)Bordeaux School of Public HealthInstitut de Santé PubliqueUniversité de BordeauxBordeauxFrance
- Pole de sante publiqueCentre Hospitalier Universitaire (CHU) de BordeauxBordeauxFrance
| | - Jean‐François Mangin
- CATI Multicenter Neuroimaging PlatformParisFrance
- NeurospinCEAParis Saclay UniversityGif‐sur‐YvetteFrance
| | - Bruno Dubois
- IM2AAP‐HPINSERMUMR‐S975Groupe Hospitalier Pitié‐SalpêtrièreInstitut de la Mémoire et de la Maladie d'AlzheimerInstitut du Cerveau et de la Moelle épinièreSorbonne UniversitéParisFrance
| | - Frédéric Blanc
- Hôpitaux Universitaire de StrasbourgCM2R (Centre Mémoire de Ressource et de Recherche)Hôpital de jourpôle de Gériatrieet CNRSlaboratoire ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), team IMISStrasbourgFrance
| | - Audrey Gabelle
- Centre Mémoire Ressources RechercheDépartement de NeurologieCHU Gui de ChauliacMontpellierFrance
- Inserm U1061La ColombièreUniversité de MontpellierMontpellierFrance
| | - Mathieu Ceccaldi
- CMMR PACA OuestCHU TimoneAPHM & Aix Marseille UnivINSERMINSInst Neurosci SystMarseilleFrance
| | - Cédric Annweiler
- Department of Geriatric MedicineAngers University HospitalAngersFrance
- Angers University Memory ClinicAngersFrance
- Research Center on Autonomy and LongevityAngersFrance
- UPRES EA 4638University of AngersAngersFrance
- Robarts Research InstituteDepartment of Medical BiophysicsSchulich School of Medicine and Dentistrythe University of Western Ontario, OntarioLondonCanada
| | - Pierre Krolak‐Salmon
- Institut du VieillissementCentre Mémoire Ressources Recherche de LyonHospices civils de LyonUniversité Lyon 1, Inserm U1048LyonFrance
| | | | - Thérèse Rivasseau‐Jonveaux
- Centre Mémoire de Ressources et de Recherche de Lorraine Unité Cognitivo Comportementale CHRU NancyLaboratoire Lorrain de Psychologie et de Neurosciences de la dynamique des comportements 2LPN EA 7489 Université de LorraineNancyFrance
| | - Adrien Julian
- Service de NeurologieCHU La MilétrieCentre Mémoire de Ressources et de RecherchePoitiersFrance
| | - François Sellal
- CMRR Département de NeurologieHôpitaux CivilsColmarFrance
- INSERM U‐1118Université de Strasbourg. Faculté de MédecineStrasbourgFrance
| | - Eloi Magnin
- Centre Mémoire Ressources et Recherche (CMRR)service de NeurologieCHRU BesançonBesançonFrance
- Neurosciences intégratives et cliniques EA481Univ. Bourgogne Franche‐ComtéBesançonFrance
| | - Marie Chupin
- CATI Multicenter Neuroimaging PlatformParisFrance
| | - Marie‐Odile Habert
- CATI Multicenter Neuroimaging PlatformParisFrance
- CNRSINSERMLaboratoire d'Imagerie BiomédicaleLIBSorbonne UniversitéParisFrance
- AP‐HPHôpital Pitié‐SalpêtrièreMédecine NucléaireParisFrance
| | - Geneviève Chêne
- Centre Inserm U1219d'Epidémiologie et de Développement (ISPED)Bordeaux School of Public HealthInstitut de Santé PubliqueUniversité de BordeauxBordeauxFrance
- Pole de sante publiqueCentre Hospitalier Universitaire (CHU) de BordeauxBordeauxFrance
| | - Carole Dufouil
- Centre Inserm U1219d'Epidémiologie et de Développement (ISPED)Bordeaux School of Public HealthInstitut de Santé PubliqueUniversité de BordeauxBordeauxFrance
- Pole de sante publiqueCentre Hospitalier Universitaire (CHU) de BordeauxBordeauxFrance
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22
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Li G, Zhang S, Le TM, Tang X, Li CSR. Neural responses to negative facial emotions: Sex differences in the correlates of individual anger and fear traits. Neuroimage 2020; 221:117171. [PMID: 32682098 PMCID: PMC7789231 DOI: 10.1016/j.neuroimage.2020.117171] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/13/2020] [Indexed: 02/08/2023] Open
Abstract
Studies have examined sex differences in emotion processing in health and illness. However, it remains unclear how these neural processes may relate to individual differences in affective traits. We addressed this issue with a dataset of 970 subjects (508 women) curated from the Human Connectome Project. Participants were assessed with the NIH Toolbox Emotion Measures and fMRI while identifying negative facial emotion and neutral shape targets in alternating blocks. Imaging data were analyzed with published routines and the results were reported at a corrected threshold. Men scored similarly in Anger- but lower in Fear-Affect, as compared to women. Men as compared with women engaged the occipital-temporal visual cortex, retrosplenial cortex (RSC), and both anterior and posterior cingulate cortex to a greater extent during face versus shape identification. Women relative to men engaged higher activation of bilateral middle frontal cortex. In regional brain responses to face versus shape identification, men relative to women showed more significant modulations by both Anger- and Fear- Affect traits. The left RSC and right RSC/precuneus each demonstrated activities during face vs. shape identification in negative correlation with Anger- and Fear- Affect scores in men only. Anger affect was positively correlated with prolonged RT in identifying face vs. shape target in men but not women. In contrast, women relative to men showed higher Fear-Affect score and higher activation in the right middle frontal cortex, which was more strongly correlated with prolonged RT during face vs. shape identification. Together, men and women with higher Fear-Affect demonstrated lower accuracy in identifying negative facial emotion versus neutral shape target, a relationship mediated by activity of the RSC. These findings add to the literature of sex and trait individual differences in emotion processing and may help research of sex-shared and sex-specific behavioral and neural markers of emotional disorders.
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Affiliation(s)
- Guangfei Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States; Department of Biomedical Engineering, School of Life Sciences, Beijing Institute of technology, 715-3 Teaching Building No.5, Beijing Institute of technology, 5 South Zhongguancun Road, Haidian District, Beijing 100081, China
| | - Sheng Zhang
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Thang M Le
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Xiaoying Tang
- Department of Biomedical Engineering, School of Life Sciences, Beijing Institute of technology, 715-3 Teaching Building No.5, Beijing Institute of technology, 5 South Zhongguancun Road, Haidian District, Beijing 100081, China.
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States; Department of Neuroscience, Yale University School of Medicine, Connecticut Mental Health Center S112, 34 Park Street, New Haven, CT 06519-1109, United States; Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT, United States.
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23
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Validating a functional near-infrared spectroscopy diagnostic paradigm for Major Depressive Disorder. Sci Rep 2020; 10:9740. [PMID: 32546704 PMCID: PMC7298029 DOI: 10.1038/s41598-020-66784-2] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/21/2020] [Indexed: 12/18/2022] Open
Abstract
Reduced haemodynamic response in the frontotemporal cortices of patients with major depressive disorder (MDD) has been demonstrated using functional near-infrared spectroscopy (fNIRS). Most notably, changes in cortical oxy-haemoglobin during a Japanese phonetic fluency task can differentiate psychiatric patients from healthy controls (HC). However, this paradigm has not been validated in the English language. Therefore, the present work aimed to distinguish patients with MDD from HCs, using haemodynamic response measured during an English letter fluency task. One hundred and five HCs and 105 patients with MDD took part in this study. NIRS signals during the verbal fluency task (VFT) was acquired using a 52-channel system, and changes in oxy-haemoglobin in the frontal and temporal regions were quantified. Depression severity, psychosocial functioning, pharmacotherapy and psychiatric history were noted. Patients with MDD had smaller changes in oxy-haemoglobin in the frontal and temporal cortices than HCs. In both regions of interest, oxy-haemoglobin was not associated with any of the clinical variables studied. 75.2% and 76.5% of patients with MDD were correctly classified using frontal and temporal region oxy-haemoglobin, respectively. Haemodynamic response measured by fNIRS during an English letter fluency task is a promising biomarker for MDD.
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24
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Chang F, Li H, Zhang S, Chen C, Liu C, Cai W. Research progress of functional near-infrared spectroscopy in patients with psychiatric disorders. Forensic Sci Res 2020; 6:141-147. [PMID: 34377571 PMCID: PMC8330753 DOI: 10.1080/20961790.2020.1720901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Functional near-infrared spectroscopy (fNIRS) is a technique of detecting cerebral cortical function by using near-infrared light, which is a multifunctional neuroimaging technique and provides a convenient and efficient detection method in neuroscience. In consideration of acceptability, safety, high spatial and temporal resolutions compared with electroencephalogram (EEG) and functional magnetic resonance imaging (fMRI), fNIRS is widely used to study different psychiatric disorders, most prominently affective disorders, schizophrenic illnesses, brain organic mental disorders and neurodevelopmental disorders, etc. The article focuses on the latest research progress and practical application of fNIRS in psychiatric disorders, especially traumatic brain, including studies on the characterization of phenomenology, treatment effects and descriptions of neuroimaging data.
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Affiliation(s)
- Fan Chang
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, China
| | - Haozhe Li
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Shengyu Zhang
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Chen Chen
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Chao Liu
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Weixiong Cai
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, China
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25
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Yeung MK, Chan AS. Functional near-infrared spectroscopy reveals decreased resting oxygenation levels and task-related oxygenation changes in mild cognitive impairment and dementia: A systematic review. J Psychiatr Res 2020; 124:58-76. [PMID: 32120065 DOI: 10.1016/j.jpsychires.2020.02.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 02/06/2023]
Abstract
Nuclear medicine and functional magnetic resonance imaging studies have shown that mild cognitive impairment (MCI) and dementia, including Alzheimer's disease (AD), are characterized by changes in cerebral blood flow. This article reviews the application of an alternative method, functional near-infrared spectroscopy (fNIRS), to the study of cerebral oxygenation changes in MCI and dementia. We synthesized 36 fNIRS studies that examined hemodynamic changes during both the resting state and the execution of tasks of word retrieval, memory, motor control, and visuospatial perception in MCI and dementia. This qualitative review reveals that (amnestic) MCI and AD patients have disrupted frontal and long-range connectivity in the resting state compared to individuals with normal cognition (NC). These patients also exhibit reduced frontal oxygenation changes in various cognitive domains. The review also shows that disrupted connectivity and decreased frontal oxygenation levels/changes are more severe in AD than in (amnestic) MCI, confirming that MCI is an intermediate stage between NC and dementia. Thus, there is reduced resting frontal perfusion, which is greater than expected for age, and a lack of frontal compensatory responses to functional decline across cognitive operations (i.e., word retrieval and memory functioning) in MCI and AD. These indices might potentially serve as perfusion- or oxygenation-based biomarkers for MCI/dementia. To expand the utility of fNIRS for MCI and dementia, further studies that measure tissue oxygenation in a wider range of brain regions and cognitive domains, compare different MCI and dementia types, and correlate changes in cerebral oxygenation over time with disease progression are needed.
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Affiliation(s)
- Michael K Yeung
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, H3A 2B4, Canada
| | - Agnes S Chan
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong SAR, China; Chanwuyi Research Center for Neuropsychological Well-being, The Chinese University of Hong Kong, Hong Kong SAR, China.
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26
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Udina C, Avtzi S, Durduran T, Holtzer R, Rosso AL, Castellano-Tejedor C, Perez LM, Soto-Bagaria L, Inzitari M. Functional Near-Infrared Spectroscopy to Study Cerebral Hemodynamics in Older Adults During Cognitive and Motor Tasks: A Review. Front Aging Neurosci 2020; 11:367. [PMID: 32038224 PMCID: PMC6985209 DOI: 10.3389/fnagi.2019.00367] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
The integrity of the frontal areas of the brain, specifically the prefrontal cortex, are critical to preserve cognition and mobility in late life. Prefrontal cortex regions are involved in executive functions and gait control and have been related to the performance of dual-tasks. Dual-task performance assessment may help identify older adults at risk of negative health outcomes. As an alternative to neuroimaging techniques that do not allow assessment during actual motion, functional Near-Infrared Spectroscopy (fNIRS) is a non-invasive technique that can assess neural activation through the measurement of cortical oxygenated and deoxygenated hemoglobin levels, while the person is performing a motor task in a natural environment as well as during cognitive tasks. The aim of this review was to describe the use of fNIRS to study frontal lobe hemodynamics during cognitive, motor and dual-tasks in older adults. From the 46 included publications, 20 studies used only cognitive tasks, three studies used motor tasks and 23 used dual-tasks. Our findings suggest that fNIRS detects changes in frontal activation in older adults (cognitively healthy and mild cognitive impairment), especially while performing cognitive and dual-tasks. In both the comparison between older and younger adults, and in people with different neurological conditions, compared to healthier controls, the prefrontal cortex seems to experience a higher activation, which could be interpreted in the context of proposed neural inefficiency and limited capacity models. Further research is needed to establish standardized fNIRS protocols, study the cerebral hemodynamic in different neurological and systemic conditions that might influence cortical activation and explore its role in predicting incident health outcomes such as dementia.
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Affiliation(s)
- Cristina Udina
- Parc Sanitari Pere Virgili, Barcelona, Spain.,RE-FiT Barcelona Research Group, Vall d'Hebrón Institute of Research, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Stella Avtzi
- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Turgut Durduran
- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Roee Holtzer
- Ferkauf Graduate School of Psychology, Yeshiva University, New York, NY, United States.,Department of Neurology, Albert Einstein College of Medicine, New York, NY, United States
| | - Andrea L Rosso
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Carmina Castellano-Tejedor
- Parc Sanitari Pere Virgili, Barcelona, Spain.,RE-FiT Barcelona Research Group, Vall d'Hebrón Institute of Research, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura-Monica Perez
- Parc Sanitari Pere Virgili, Barcelona, Spain.,RE-FiT Barcelona Research Group, Vall d'Hebrón Institute of Research, Barcelona, Spain
| | - Luis Soto-Bagaria
- Parc Sanitari Pere Virgili, Barcelona, Spain.,RE-FiT Barcelona Research Group, Vall d'Hebrón Institute of Research, Barcelona, Spain
| | - Marco Inzitari
- Parc Sanitari Pere Virgili, Barcelona, Spain.,RE-FiT Barcelona Research Group, Vall d'Hebrón Institute of Research, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
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27
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Reynoso-Alcántara V, Silva-Pereyra J, Vergara-Lope Tristán S, Díaz Camacho JE, Guiot Vázquez MI, Del Callejo Canal DD, Canal Martínez ME. Verbal fluency in Mexican Spanish-speaking subjects with high educational level: Ranking of letters and semantic categories. J Clin Exp Neuropsychol 2019; 41:1001-1014. [PMID: 31354101 DOI: 10.1080/13803395.2019.1643454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Verbal fluency tasks are useful tools in clinical practice and research studies across languages and contexts, but specific data obtained using Spanish phonological tasks and semantic tasks with different levels of difficulty are lacking. The present study aimed to determine the difficulty level of a phonological tasks and semantic tasks among Spanish-speakers. Method: Both tasks were ordered across five difficulty levels based on the frequency of use in Mexican Spanish (phonological) and the number of elements given by a group of participants (semantic). One hundred healthy Mexican Spanish-speaking participants (aged 24-63 years; 55 females) were presented with five phonological and five semantic categories. The participants also underwent a neuropsychological test and sociodemographic interview. The number of words correctly produced in each category within one minute was calculated. An ANOVA and a Kruskal-Wallis analysis were conducted in order to know if there were different levels of difficulty in the tasks. Additionally, correlation analyzes were performed to test the effect of the sociodemographic and cognitive variables on the participants' responses. Results: According to the analyzes, there were different levels of difficulty in the categories; P was the easiest and O was the most difficult category in the phonological tasks, and body parts and precious stones were the easiest and most difficult, respectively, in the semantic tasks. Age had a negative correlation with four-legged animals and a positive correlation with O; Positive correlations were also found between education and professions, vegetables, and alcoholic beverages; and between IQ and D, N, musical instruments, sports, vegetables, and trees. Conclusions: Both tasks offer categories with different level of difficulty based on the performance of a highly educated Mexican population. These data may be useful for clinical and research purposes.
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Affiliation(s)
| | - Juan Silva-Pereyra
- Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México , Estado de México , México
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28
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Sex Differences in Cognitive Flexibility and Resting Brain Networks in Middle-Aged Marmosets. eNeuro 2019; 6:ENEURO.0154-19.2019. [PMID: 31262949 PMCID: PMC6658914 DOI: 10.1523/eneuro.0154-19.2019] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/29/2019] [Accepted: 06/18/2019] [Indexed: 12/25/2022] Open
Abstract
Sex differences in human cognitive performance are well characterized. However, the neural correlates of these differences remain elusive. This issue may be clarified using nonhuman primates, for which sociocultural influences are minimized. We used the marmoset (Callithrix jacchus) to investigate sex differences in two aspects of executive function: reversal learning and intradimensional/extradimensional (ID/ED) set shifting. Stress reactivity and motor function were also assessed. In agreement with human literature, females needed more trials than males to acquire the reversals. No sex differences in ED set shifting or motivational measures were observed. The findings suggest enhanced habit formation in females, perhaps due to striatal estrogenic effects. Both sexes showed increased urinary cortisol during social separation stressor, but females showed an earlier increase in cortisol and a greater increase in agitated locomotion, possibly indicating enhanced stress reactivity. Independent of sex, basal cortisol predicted cognitive performance. No sex differences were found in motor performance. Associations between brain networks and reversal learning performance were investigated using resting state fMRI. Resting state functional connectivity (rsFC) analyses revealed sex differences in cognitive networks, with differences in overall neural network metrics and specific regions, including the prefrontal cortex, caudate, putamen, and nucleus accumbens. Correlations between cognitive flexibility and neural connectivity indicate that sex differences in cognitive flexibility are related to sex-dependent patterns of resting brain networks. Overall, our findings reveal sex differences in reversal learning, brain networks, and their relationship in the marmoset, positioning this species as an excellent model to investigate the biological basis of cognitive sex differences.
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29
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Rosenbaum D, Blum L, Schweizer P, Fallgatter AJ, Herrmann MJ, Ehlis AC, Metzger FG. Comparison of speed versus complexity effects on the hemodynamic response of the trail making test in block designs. NEUROPHOTONICS 2018; 5:045007. [PMID: 30539043 PMCID: PMC6286664 DOI: 10.1117/1.nph.5.4.045007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/29/2018] [Indexed: 06/09/2023]
Abstract
The use of functional near-infrared spectroscopy (fNIRS) in block designs provides measures of cortical activity in ecologically valid environments. However, in some cases, the use of block designs may be problematic when data are not corrected for performance in a time-restricted block. We sought to investigate the effects of task complexity and processing speed on hemodynamic responses in an fNIRS block design. To differentiate the effects of task complexity and processing speed, 20 subjects completed the trail making test (TMT) in two versions (TMT-A versus TMT-B) and three different speed levels (slow versus moderate versus fast). During TMT-A, subjects are asked to connect encircled numbers in numerically ascending order (1-2-3…). In the more complex TMT-B, subjects are instructed to connect encircled numbers and letters in alternating ascending order (1-A-2-B…). To illustrate the obscuring effects of processing speed on task complexity, we perform two different analyses. First, we analyze the classical measures of oxygenated blood, and second, we analyze the measures corrected for the number of processed items. Our results show large effects for processing speed within the bilateral inferior frontal gyrus, left dorsolateral prefrontal cortex, and superior parietal lobule (SPL). The TMT contrast did not show significant effects with classical measures, although trends are observed for higher activation during TMT-B. When corrected for processed items, higher activity for TMT-B in comparison to TMT-A is found within the SPL. The results are discussed in light of recent research designs, and simple to use correction methods are suggested.
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Affiliation(s)
- David Rosenbaum
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
| | - Leonore Blum
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
| | - Paul Schweizer
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
| | - Andreas J. Fallgatter
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
- University of Tuebingen, Center of Integrative Neuroscience, Cluster of Excellence, Tuebingen, Germany
- University of Tuebingen, LEAD Graduate School and Research Network, Tuebingen, Germany
| | - Martin J. Herrmann
- University Hospital Wuerzburg, Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, Wuerzburg, Germany
| | - Ann-Christine Ehlis
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
- University of Tuebingen, LEAD Graduate School and Research Network, Tuebingen, Germany
| | - Florian G. Metzger
- University Hospital Tuebingen, Department of Psychiatry and Psychotherapy, Tuebingen, Germany
- University Hospital Tuebingen, Geriatric Center, Tuebingen, Germany
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30
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Ehlis AC, Barth B, Hudak J, Storchak H, Weber L, Kimmig ACS, Kreifelts B, Dresler T, Fallgatter AJ. Near-Infrared Spectroscopy as a New Tool for Neurofeedback Training: Applications in Psychiatry and Methodological Considerations. JAPANESE PSYCHOLOGICAL RESEARCH 2018. [DOI: 10.1111/jpr.12225] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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31
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Hudak J, Rosenbaum D, Barth B, Fallgatter AJ, Ehlis AC. Functionally disconnected: A look at how study design influences neurofeedback data and mechanisms in attention-deficit/hyperactivity disorder. PLoS One 2018; 13:e0200931. [PMID: 30096196 PMCID: PMC6086395 DOI: 10.1371/journal.pone.0200931] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 07/04/2018] [Indexed: 01/13/2023] Open
Abstract
Neurofeedback (NF) is a form of behavioral therapy used to treat e.g. attention-deficit/hyperactivity disorder (ADHD). Briefly, subjects are fed-back a putatively dysfunctional parameter of their brain activity in real time and must learn to control it in a suggested direction. NF protocols for ADHD have been used in practice for decades, though no clear standards on NF design have been implemented. Furthermore, studies often present only data from the general outcome of the NF treatment and do not look at how exactly the NF paradigm affects brain functionality, or what exactly the NF is training. The current study is two-fold: firstly, we look at how the functional connectivity (FC) patterns within key networks associated with ADHD differ between rests, feedback trials, success and failure in a complete functional near-infrared spectroscopy-based NF experiment on adults with ADHD. Secondly, due to methodological concerns discovered during the analysis of our data, we address important considerations in the design of NF that are often ignored in protocols being used widely in therapy and research today. In particular, we examine the common average reference and its impact on network activity as well as the importance of balancing the randomization in a design. Finally, we discuss how these methodological considerations may have influenced our FC results.
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Affiliation(s)
- Justin Hudak
- LEAD Graduate School & Research Network, University of Tübingen, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
- * E-mail:
| | - David Rosenbaum
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
| | - Beatrix Barth
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
- Centre for Integrative Neuroscience, University of Tübingen, Tübingen, Germany
| | - Andreas J. Fallgatter
- LEAD Graduate School & Research Network, University of Tübingen, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
- Graduate School of Neural and Behavioral Sciences, University of Tübingen, Tübingen, Germany
| | - Ann-Christine Ehlis
- LEAD Graduate School & Research Network, University of Tübingen, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
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Omurtag A, Aghajani H, Keles HO. Decoding human mental states by whole-head EEG+fNIRS during category fluency task performance. J Neural Eng 2018; 14:066003. [PMID: 28730995 DOI: 10.1088/1741-2552/aa814b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Concurrent scalp electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS), which we refer to as EEG+fNIRS, promises greater accuracy than the individual modalities while remaining nearly as convenient as EEG. We sought to quantify the hybrid system's ability to decode mental states and compare it with its unimodal components. APPROACH We recorded from healthy volunteers taking the category fluency test and applied machine learning techniques to the data. MAIN RESULTS EEG+fNIRS's decoding accuracy was greater than that of its subsystems, partly due to the new type of neurovascular features made available by hybrid data. SIGNIFICANCE Availability of an accurate and practical decoding method has potential implications for medical diagnosis, brain-computer interface design, and neuroergonomics.
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Affiliation(s)
- Ahmet Omurtag
- Engineering Department, Nottingham Trent University, Nottingham, United Kingdom
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Cognition During and After Multiple Sclerosis Relapse as Assessed With the Brief International Cognitive Assessment for Multiple Sclerosis. Sci Rep 2018; 8:8169. [PMID: 29802384 PMCID: PMC5970258 DOI: 10.1038/s41598-018-26449-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 05/10/2018] [Indexed: 11/08/2022] Open
Abstract
There is some evidence that cognition may be impaired during multiple sclerosis (MS) relapse. The aims of this study were to assess the cognitive status with the Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS) in MS patients during relapse, in stable patients, and in healthy controls; to evaluate cognitive changes up to 3 months after relapse; and to estimate the impact of different factors on cognition after relapse. BICAMS was performed in 60 relapsing, 30 stable patients and 30 controls. Relapsing MS patients were assessed during relapse and one and three months after relapse. SDMT score was lower in relapsing than in stable patients. The mean scores of all BICAMS tests were higher one month after relapse than during relapse (p < 0.001). SDMT score after relapse improved in younger patients, who had more severe relapse (p < 0.05). BVMT-R score improved more in men, in patients with biologically active interferon-beta, in patients treated with methylprednisolone and in patients who were rehabilitated (p < 0.05). CVLT-II score improved in women and in patients with shorter relapse (p < 0.05). A neuropsychological assessment, like the evaluation of physical disability, is important during relapse. BICAMS may be suitable for a quick and effective assessment of cognition during relapse.
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Katzorke A, Zeller JBM, Müller LD, Lauer M, Polak T, Deckert J, Herrmann MJ. Decreased hemodynamic response in inferior frontotemporal regions in elderly with mild cognitive impairment. Psychiatry Res Neuroimaging 2018; 274:11-18. [PMID: 29472145 DOI: 10.1016/j.pscychresns.2018.02.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/15/2018] [Accepted: 02/09/2018] [Indexed: 02/01/2023]
Abstract
The verbal fluency task (VFT) is a well-established cognitive marker for mild cognitive impairment (MCI) in the prodromal stage of Alzheimer´s dementia (AD). The behavioral VFT performance of patients allows the prediction of dementia two years later. But effective compensatory mechanism might cover or reduce the predictive value of the VFT. Therefore the aim of this study is to measure the hemodynamic response during VFT in patients with mild cognitive impairment (MCI) to establish the hemodynamic response during the VFT as a screening instrument for the prediction of dementia. One method which allows measuring the hemodynamic response during speech production without severe problems with moving artifacts like in functional magnetic resonance imaging (fMRI) is the functional near-infrared spectroscopy (fNIRS). It is optimal as a screening instrument, as it is easy to apply and without any contraindications. In this study we assessed the hemodynamic response in prefrontal and temporal regions in patients with MCI as well as matched healthy controls with fNIRS. We found a decreased hemodynamic response in the inferior frontotemporal cortex for the MCI group. Our results indicate that a frontotemporal decreased hemodynamic response could serve as a diagnostic biomarker for dementia.
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Affiliation(s)
- Andrea Katzorke
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany.
| | - Julia B M Zeller
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
| | - Laura D Müller
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
| | - Martin Lauer
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
| | - Thomas Polak
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
| | - Jürgen Deckert
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
| | - Martin J Herrmann
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Margarete-Höppel-Platz 1, D - 97080 Würzburg, Germany
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35
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Reduced frontal activity during a verbal fluency test in fibromyalgia: A near-infrared spectroscopy study. J Clin Neurosci 2018; 50:35-40. [DOI: 10.1016/j.jocn.2018.01.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/18/2017] [Accepted: 01/05/2018] [Indexed: 11/18/2022]
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Hudak J, Blume F, Dresler T, Haeussinger FB, Renner TJ, Fallgatter AJ, Gawrilow C, Ehlis AC. Near-Infrared Spectroscopy-Based Frontal Lobe Neurofeedback Integrated in Virtual Reality Modulates Brain and Behavior in Highly Impulsive Adults. Front Hum Neurosci 2017; 11:425. [PMID: 28928644 PMCID: PMC5591376 DOI: 10.3389/fnhum.2017.00425] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/08/2017] [Indexed: 12/03/2022] Open
Abstract
Based on neurofeedback (NF) training as a neurocognitive treatment in attention-deficit/hyperactivity disorder (ADHD), we designed a randomized, controlled functional near-infrared spectroscopy (fNIRS) NF intervention embedded in an immersive virtual reality classroom in which participants learned to control overhead lighting with their dorsolateral prefrontal brain activation. We tested the efficacy of the intervention on healthy adults displaying high impulsivity as a sub-clinical population sharing common features with ADHD. Twenty participants, 10 in an experimental and 10 in a shoulder muscle-based electromyography control group, underwent eight training sessions across 2 weeks. Training was bookended by a pre- and post-test including go/no-go, n-back, and stop-signal tasks (SST). Results indicated a significant reduction in commission errors on the no-go task with a simultaneous increase in prefrontal oxygenated hemoglobin concentration for the experimental group, but not for the control group. Furthermore, the ability of the subjects to gain control over the feedback parameter correlated strongly with the reduction in commission errors for the experimental, but not for the control group, indicating the potential importance of learning feedback control in moderating behavioral outcomes. In addition, participants of the fNIRS group showed a reduction in reaction time variability on the SST. Results indicate a clear effect of our NF intervention in reducing impulsive behavior possibly via a strengthening of frontal lobe functioning. Virtual reality additions to conventional NF may be one way to improve the ecological validity and symptom-relevance of the training situation, hence positively affecting transfer of acquired skills to real life.
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Affiliation(s)
- Justin Hudak
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany
| | - Friederike Blume
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany
| | - Thomas Dresler
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany.,Department of Psychiatry and Psychotherapy, University Hospital TübingenTübingen, Germany
| | - Florian B Haeussinger
- Department of Psychiatry and Psychotherapy, University Hospital TübingenTübingen, Germany
| | - Tobias J Renner
- Department of Child and Adolescence Psychiatry, University Hospital TübingenTübingen, Germany
| | - Andreas J Fallgatter
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany.,Department of Psychiatry and Psychotherapy, University Hospital TübingenTübingen, Germany.,Center for Integrative Neuroscience, University of TübingenTübingen, Germany
| | - Caterina Gawrilow
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany.,Department of Psychology, University of TübingenTübingen, Germany.,Center for Individual Development and Adaptive Education of Children at Risk, Goethe University FrankfurtFrankfurt, Germany
| | - Ann-Christine Ehlis
- LEAD Graduate School & Research Network, University of TübingenTübingen, Germany.,Department of Psychiatry and Psychotherapy, University Hospital TübingenTübingen, Germany
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37
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Agbangla NF, Audiffren M, Albinet CT. Use of near-infrared spectroscopy in the investigation of brain activation during cognitive aging: A systematic review of an emerging area of research. Ageing Res Rev 2017; 38:52-66. [PMID: 28755870 DOI: 10.1016/j.arr.2017.07.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 01/24/2023]
Abstract
The cognitive neuroscience of aging is a growing and stimulating research area. The development of neuroimaging techniques in the past two decades has considerably increased our understanding of the brain mechanisms that might underlie cognitive performance and resulting changes due to normal aging. Beside traditional metabolic neuroimaging techniques, such as Positron Emission Tomography and functional Magnetic Resonance Imaging, near infrared spectroscopy (NIRS), an optical imaging technique allowing to monitor real-time cerebral blood oxygenation, has gained recent interest in this field. The aim of the present review paper, after briefly presenting the NIRS technique, is to review and to summarize the recent results of neuroimaging studies using this technique in the field of cognitive aging. The reviewed literature shows that, despite low spatial resolution and cerebral depth penetration, this technique provides consistent findings on the reduced hemodynamic activity as a function of chronological age, mainly in the prefrontal cortex. Important moderators of brain hemodynamics, such as cognitive load, subjects' characteristics and experimental conditions, for which the NIRS technique is sensitive, are discussed. Strengths and weaknesses of functional NIRS in the field of cognitive aging are presented and finally, novel perspectives of research are proposed.
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38
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Polak T, Herrmann MJ, Müller LD, Zeller JBM, Katzorke A, Fischer M, Spielmann F, Weinmann E, Hommers L, Lauer M, Fallgatter AJ, Deckert J. Near-infrared spectroscopy (NIRS) and vagus somatosensory evoked potentials (VSEP) in the early diagnosis of Alzheimer’s disease: rationale, design, methods, and first baseline data of the Vogel study. J Neural Transm (Vienna) 2017; 124:1473-1488. [DOI: 10.1007/s00702-017-1781-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 08/23/2017] [Indexed: 01/06/2023]
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Reduced language lateralization in first episode schizophrenia: A near infrared spectroscopy study. Prog Neuropsychopharmacol Biol Psychiatry 2017; 78:96-104. [PMID: 28499897 DOI: 10.1016/j.pnpbp.2017.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 04/25/2017] [Accepted: 05/08/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Diminished functional lateralization in language-related areas is found in chronic schizophrenia (SZ). However, whether this reduced lateralization exists at the early stage of SZ remains unclear. The present study aimed to investigate language lateralization in first episode schizophrenia (FES) using near infrared spectroscopy (NIRS) during a letter version of verbal fluency test (VFT). METHODS A total of 28 FES patients and 33 healthy controls (HCs) underwent NIRS while performing a VFT. Six regions of interests (ROIs) were defined: the bilateral frontal-, inferior frontal gyrus (IFG), and temporal regions. Laterality index (LI) was calculated and compared between the two groups in ROIs. In addition, we investigated whether language lateralization was correlated with severity of clinical symptoms. RESULTS Across all ROIs, LI was significantly reduced in FES patients (p=0.037) compared to controls in the IFG region. In addition, LI was not found to be correlated with VFT performance, the PANSS positive, negative or general psychopathology subscales. CONCLUSIONS Our study demonstrated a diminution of leftward functional lateralization in the IFG during a VFT in FES patients. This is the first NIRS study to report reduced functional lateralization in patients at the early stage of schizophrenia.
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40
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Martin AK, Meinzer M, Lindenberg R, Sieg MM, Nachtigall L, Flöel A. Effects of Transcranial Direct Current Stimulation on Neural Networks in Young and Older Adults. J Cogn Neurosci 2017; 29:1817-1828. [PMID: 28707568 DOI: 10.1162/jocn_a_01166] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Transcranial direct current stimulation (tDCS) may be a viable tool to improve motor and cognitive function in advanced age. However, although a number of studies have demonstrated improved cognitive performance in older adults, other studies have failed to show restorative effects. The neural effects of beneficial stimulation response in both age groups is lacking. In the current study, tDCS was administered during simultaneous fMRI in 42 healthy young and older participants. Semantic word generation and motor speech baseline tasks were used to investigate behavioral and neural effects of uni- and bihemispheric motor cortex tDCS in a three-way, crossover, sham tDCS controlled design. Independent components analysis assessed differences in task-related activity between the two age groups and tDCS effects at the network level. We also explored whether laterality of language network organization was effected by tDCS. Behaviorally, both active tDCS conditions significantly improved semantic word retrieval performance in young and older adults and were comparable between groups and stimulation conditions. Network-level tDCS effects were identified in the ventral and dorsal anterior cingulate networks in the combined sample during semantic fluency and motor speech tasks. In addition, a shift toward enhanced left laterality was identified in the older adults for both active stimulation conditions. Thus, tDCS results in common network-level modulations and behavioral improvements for both age groups, with an additional effect of increasing left laterality in older adults.
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Affiliation(s)
| | | | | | - Mira M Sieg
- Charité University Medicine, Berlin, Germany
| | | | - Agnes Flöel
- Charité University Medicine, Berlin, Germany.,University of Greifswald
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41
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Katzorke A, Zeller JBM, Müller LD, Lauer M, Polak T, Reif A, Deckert J, Herrmann MJ. Reduced Activity in the Right Inferior Frontal Gyrus in Elderly APOE-E4 Carriers during a Verbal Fluency Task. Front Hum Neurosci 2017; 11:46. [PMID: 28220068 PMCID: PMC5292419 DOI: 10.3389/fnhum.2017.00046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/20/2017] [Indexed: 12/22/2022] Open
Abstract
Apolipoprotein-E4 (APOE-E4) is a major genetic risk factor for developing Alzheimer's disease (AD). The verbal fluency task (VFT), especially the subtask category fluency, has shown to provide a good discrimination between cognitively normal controls and subjects with AD. Interestingly, APOE-E4 seems to have no effect on the behavioral performance during a VFT in healthy elderly. Thus, the purpose of the present study was to reveal possible compensation mechanisms by investigating the effect of APOE-E4 on the hemodynamic response in non-demented elderly during a VFT by using functional near-infrared spectroscopy (fNIRS). We compared performance and hemodynamic response of high risk APOE-E4/E4, -E3/E4 carriers with neutral APOE-E3/E3 non-demented subjects (N = 288; 70-77 years). No difference in performance was found. APOE-E4/E4, -E3/E4 carriers had a decreased hemodynamic response in the right inferior frontal junction (IFJ) with a corresponding higher response in the left middle frontal gyrus (MFG) during category fluency. Performance was correlated with the hemodynamic response in the MFG. We assume a compensation of decreased IFJ brain activation by utilizing the MFG during category fluency and thus resulting in no behavioral differences between APOE-groups during the performance of a VFT.
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Affiliation(s)
- Andrea Katzorke
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Julia B M Zeller
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Laura D Müller
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Martin Lauer
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Thomas Polak
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt Frankfurt am Main, Germany
| | - Jürgen Deckert
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
| | - Martin J Herrmann
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Würzburg Würzburg, Germany
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42
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Vermeij A, Kessels RPC, Heskamp L, Simons EMF, Dautzenberg PLJ, Claassen JAHR. Prefrontal activation may predict working-memory training gain in normal aging and mild cognitive impairment. Brain Imaging Behav 2017; 11:141-154. [PMID: 26843001 PMCID: PMC5415588 DOI: 10.1007/s11682-016-9508-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cognitive training has been shown to result in improved behavioral performance in normal aging and mild cognitive impairment (MCI), yet little is known about the neural correlates of cognitive plasticity, or about individual differences in responsiveness to cognitive training. In this study, 21 healthy older adults and 14 patients with MCI received five weeks of adaptive computerized working-memory (WM) training. Before and after training, functional Near-Infrared Spectroscopy (fNIRS) was used to assess the hemodynamic response in left and right prefrontal cortex during performance of a verbal n-back task with varying levels of WM load. After training, healthy older adults demonstrated decreased prefrontal activation at high WM load, which may indicate increased processing efficiency. Although MCI patients showed improved behavioral performance at low WM load after training, no evidence was found for training-related changes in prefrontal activation. Whole-group analyses showed that a relatively strong hemodynamic response at low WM load was related to worse behavioral performance, while a relatively strong hemodynamic response at high WM load was related to higher training gain. Therefore, a 'youth-like' prefrontal activation pattern at older age may be associated with better behavioral outcome and cognitive plasticity.
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Affiliation(s)
- Anouk Vermeij
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Geriatric Medicine, Radboud University Medical Center, Route 925, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Roy P C Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Medical Psychology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Linda Heskamp
- Department of Geriatric Medicine, Radboud University Medical Center, Route 925, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Esther M F Simons
- Department of Geriatric Medicine, Radboud University Medical Center, Route 925, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Paul L J Dautzenberg
- Department of Geriatric Medicine, Jeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands
| | - Jurgen A H R Claassen
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands.
- Department of Geriatric Medicine, Radboud University Medical Center, Route 925, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
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Metzger FG, Schopp B, Haeussinger FB, Dehnen K, Synofzik M, Fallgatter AJ, Ehlis AC. Brain activation in frontotemporal and Alzheimer's dementia: a functional near-infrared spectroscopy study. ALZHEIMERS RESEARCH & THERAPY 2016; 8:56. [PMID: 27931245 PMCID: PMC5146884 DOI: 10.1186/s13195-016-0224-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/16/2016] [Indexed: 12/12/2022]
Abstract
Background Frontotemporal dementia is an increasingly studied disease, the underlying functional impairments on a neurobiological level of which have not been fully understood. Patients with the behavioral-subtype frontotemporal dementia (bvFTD) are particularly challenging for clinical measurements such as functional imaging due to their behavioral symptoms. Here, an alternative imaging method, functional near-infrared spectroscopy (fNIRS), is introduced to measure task-related cortical brain activation based on blood oxygenation. The current study investigated differences in cortical activation patterns of patients with bvFTD, Alzheimer’s dementia (AD), and healthy elderly subjects measured by fNIRS. Method Eight probable bvFTD patients completed the semantic, phonological, and control conditions of a verbal fluency task. Eight AD patients and eight healthy controls were compared on the same task. Simultaneously, an fNIRS measurement was conducted and analyzed using a correction method based on the expected negative correlation between oxygenated and deoxygenated hemoglobin. Results Healthy controls show an increase in cortical activation measured in frontoparietal areas such as the dorsolateral prefrontal cortex. The activation pattern of patients with AD is similar, but weaker. In contrast, bvFTD patients show a more frontopolar pattern, with activation of Broca’s area, instead of the dorsolateral prefrontal cortex and the superior temporal gyrus. The frontoparietal compensation mechanisms, seen in the healthy elderly, were missing in bvFTD patients. Conclusion Different frontoparietal cortical activation patterns may indicate a correlate of diverse pathophysiological mechanisms of AD and bvFTD during verbal fluency processing. The AD pattern is weaker and more similar to the healthy pattern, whereas the bvFTD pattern is qualitatively different, namely more frontopolar and without frontoparietal compensation activation. It adheres to a change of cortical activation during the course of the disease. Electronic supplementary material The online version of this article (doi:10.1186/s13195-016-0224-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Florian G Metzger
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany. .,Geriatric Center at the University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany.
| | - Betti Schopp
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany
| | - Florian B Haeussinger
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany
| | - Katja Dehnen
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany
| | - Matthis Synofzik
- Center of Neurology, Department of Neurodegeneration and Hertie Institute for Clinical Brain Research, University Hospital of Tuebingen, Hoppe-Seyler-Straße 3, 72076, Tuebingen, Germany.,German Center of Neurodegenerative Disorders (DZNE), University Hospital of Tuebingen, Otfried-Müller-Straße 23, 72076, Tuebingen, Germany
| | - Andreas J Fallgatter
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany.,German Center of Neurodegenerative Disorders (DZNE), University Hospital of Tuebingen, Otfried-Müller-Straße 23, 72076, Tuebingen, Germany
| | - Ann-Christine Ehlis
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076, Tuebingen, Germany
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Metzger FG, Ehlis AC, Haeussinger FB, Schneeweiss P, Hudak J, Fallgatter AJ, Schneider S. Functional brain imaging of walking while talking - An fNIRS study. Neuroscience 2016; 343:85-93. [PMID: 27915210 DOI: 10.1016/j.neuroscience.2016.11.032] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/02/2016] [Accepted: 11/21/2016] [Indexed: 11/24/2022]
Abstract
Since functional imaging of whole body movements is not feasible with functional magnetic resonance imaging (fMRI), the present study presents in vivo functional near-infrared spectroscopy (fNIRS) as a suitable technique to measure body movement effects on fronto-temporo-parietal cortical activation in single- and dual-task paradigms. Previous fNIRS applications in studies addressing whole body movements were typically limited to the assessment of prefrontal brain areas. The current study investigated brain activation in the frontal, temporal and parietal cortex of both hemispheres using functional near-infrared spectroscopy (fNIRS) with two large 4×4 probe-sets with 24 channels each during single and dual gait tasks. 12 young healthy adults were measured using fNIRS walking on a treadmill: the participants performed two single-task (ST) paradigms (walking at different speeds, i.e. 3 and 5km/h) and a dual task (DT) paradigm where a verbal fluency task (VFT) had to be executed while walking at 3km/h. The results show an increase of activation in Broca's area during the more advanced conditions (ST 5km/h vs. ST 3km/h, DT vs. ST 3km/h, DT vs. 5km/h), while the corresponding area on the right hemisphere was also activated. DT paradigms including a cognitive task in conjunction with whole body movements elicit wide-spread cortical activation patterns across fronto-temporo-parietal areas. An elaborate assessment of these activation patterns requires more extensive fNIRS assessments than the traditional prefrontal investigations, e.g. as performed with portable fNIRS devices.
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Affiliation(s)
- Florian G Metzger
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany; Geriatric Center, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany.
| | - Ann-Christine Ehlis
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany.
| | - Florian B Haeussinger
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany.
| | - Patrick Schneeweiss
- Department of Sports Medicine, University Hospital of Tuebingen, Hoppe-Seyler-Straße 6, 72076 Tübingen, Germany.
| | - Justin Hudak
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany.
| | - Andreas J Fallgatter
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany; Center of Integrative Neuroscience (CIN), Cluster of Excellence, University of Tuebingen, Otfried-Müller-Straße 25, 72076 Tübingen, Germany.
| | - Sabrina Schneider
- Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstraße 14, 72076 Tuebingen, Germany; Department of Psychology, HELP University Kuala Lumpur, Persiaran Cakerawala, Subang Bestari, Seksyen U4, 40150 Shah Alam, Selangor, Malaysia.
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45
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Uemura K, Shimada H, Doi T, Makizako H, Tsutsumimoto K, Park H, Suzuki T. Reduced prefrontal oxygenation in mild cognitive impairment during memory retrieval. Int J Geriatr Psychiatry 2016; 31:583-91. [PMID: 26387497 DOI: 10.1002/gps.4363] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 08/25/2015] [Accepted: 08/28/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Memory impairment is considered a hallmark of amnestic mild cognitive impairment (aMCI) and dementia. Emerging evidence suggests that the prefrontal lobe is required to maintain memory functions. The purpose of this study was to clarify whether older adults with aMCI have decreased prefrontal oxygenation during memory encoding and retrieval compared with age-matched healthy older adults, using multi-channel near-infrared spectroscopy. METHODS We examined 64 older adults with aMCI (mean 71.8 years) and 66 cognitively healthy control subjects comparable in age and gender (mean 71.7 years). The concentration of oxy-hemoglobin, which is a reliable biomarker of changes in regional cerebral blood flow, was measured in the prefrontal cortex during encoding and delayed retrieval of a list of 10 target words. Task performance was evaluated as average number of correct answers in the retrieval task. RESULTS Subjects with aMCI showed reduced activation in the bilateral dorsolateral cortex (approximately Brodmann area 9) and provided fewer correct answers in the retrieval period than control subjects. There were no significant differences during encoding. CONCLUSIONS Reduced activation in the dorsolateral cortex during retrieval may cause deficits in memory performance, which may be used as a marker of aMCI. Further studies are required to examine the predictive validity of this decreased activation pattern for the incidence of Alzheimer's disease.
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Affiliation(s)
- Kazuki Uemura
- Institute of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Hiroyuki Shimada
- Department of Functioning Activation, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takehiko Doi
- Department of Functioning Activation, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan.,Research Fellow of the Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hyuma Makizako
- Department of Functioning Activation, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kota Tsutsumimoto
- Department of Functioning Activation, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hyuntae Park
- National Center for Geriatrics and Gerontology, Obu, Japan.,Department of Medicinal Biotechnology, Dong-A University, Busan, Korea
| | - Takao Suzuki
- National Center for Geriatrics and Gerontology, Obu, Japan
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46
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Yeung MK, Sze SL, Woo J, Kwok T, Shum DHK, Yu R, Chan AS. Altered Frontal Lateralization Underlies the Category Fluency Deficits in Older Adults with Mild Cognitive Impairment: A Near-Infrared Spectroscopy Study. Front Aging Neurosci 2016; 8:59. [PMID: 27065857 PMCID: PMC4809883 DOI: 10.3389/fnagi.2016.00059] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/09/2016] [Indexed: 11/15/2022] Open
Abstract
Individuals with mild cognitive impairment (MCI) have been consistently found to have category fluency deficits. However, little is known about the neural basis of these deficits. A diversity of neuroimaging studies has revealed left-lateralized prefrontal activations due to verbal processing and control functions during the performance of category fluency tasks. Given the reports of structural and functional abnormalities in the prefrontal cortices in individuals with MCI, it is conceivable that these individuals would also exhibit altered prefrontal activation patterns during a category fluency task. The present study aimed to investigate the prefrontal dynamics during the category fluency task in older adults with MCI by using near-infrared spectroscopy (NIRS). Twenty-six older adults with MCI were compared with 26 older adults with normal cognition (NC) who were matched in age, gender, handedness, and educational level. All participants performed a category fluency task while the prefrontal dynamics were recorded. The results showed that the MCI group generated fewer unique words, made fewer switches between subcategories, and generated fewer new subcategories than did the NC group. Importantly, the NIRS results showed that the NC group exhibited a left lateralization of frontal activations during the category fluency task, while the MCI group did not exhibit such a lateralization. Furthermore, there was a significant positive correlation between the category fluency performance and the extent of lateralization, suggesting that the category fluency deficits in the MCI group could be related to frontal dysfunction. That is, the rightward shift of frontal activations in the MCI group may reflect the presence of cortical reorganization in which the contralateral regions (i.e., the right hemisphere) are recruited to take over the function that is declining in the specialized regions (i.e., the left hemisphere). Our lateralization finding may serve as an objective neural marker for distinguishing between normal aging and MCI. Our study highlights that an alteration of neural functioning is already present at the prodromal stage of dementia.
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Affiliation(s)
- Michael K Yeung
- Department of Psychology, The Chinese University of Hong Kong New Territories, Hong Kong SAR, China
| | - Sophia L Sze
- Department of Psychology, The Chinese University of Hong KongNew Territories, Hong Kong SAR, China; Chanwuyi Research Center for Neuropsychological Well-Being, The Chinese University of Hong KongNew Territories, Hong Kong SAR, China
| | - Jean Woo
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong New Territories, Hong Kong SAR, China
| | - Timothy Kwok
- School of Public Health, The Chinese University of Hong Kong New Territories, Hong Kong SAR, China
| | - David H K Shum
- Menzies Health Institute Queensland and School of Applied Psychology, Griffith University Gold Coast, QLD, Australia
| | - Ruby Yu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong New Territories, Hong Kong SAR, China
| | - Agnes S Chan
- Department of Psychology, The Chinese University of Hong KongNew Territories, Hong Kong SAR, China; Chanwuyi Research Center for Neuropsychological Well-Being, The Chinese University of Hong KongNew Territories, Hong Kong SAR, China
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47
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Rosenbaum D, Hagen K, Deppermann S, Kroczek AM, Haeussinger FB, Heinzel S, Berg D, Fallgatter AJ, Metzger FG, Ehlis AC. State-dependent altered connectivity in late-life depression: a functional near-infrared spectroscopy study. Neurobiol Aging 2016; 39:57-68. [DOI: 10.1016/j.neurobiolaging.2015.11.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/04/2015] [Accepted: 11/27/2015] [Indexed: 01/08/2023]
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48
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Eavani H, Hsieh MK, An Y, Erus G, Beason-Held L, Resnick S, Davatzikos C. Capturing heterogeneous group differences using mixture-of-experts: Application to a study of aging. Neuroimage 2016; 125:498-514. [PMID: 26525656 PMCID: PMC5460911 DOI: 10.1016/j.neuroimage.2015.10.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 10/12/2015] [Accepted: 10/16/2015] [Indexed: 11/22/2022] Open
Abstract
In MRI studies, linear multi-variate methods are often employed to identify regions or connections that are affected due to disease or normal aging. Such linear models inherently assume that there is a single, homogeneous abnormality pattern that is present in all affected individuals. While kernel-based methods can implicitly model a non-linear effect, and therefore the heterogeneity in the affected group, extracting and interpreting information about affected regions is difficult. In this paper, we present a method that explicitly models and captures heterogeneous patterns of change in the affected group relative to a reference group of controls. For this purpose, we use the Mixture-of-Experts (MOE) framework, which combines unsupervised modeling of mixtures of distributions with supervised learning of classifiers. MOE approximates the non-linear boundary between the two groups with a piece-wise linear boundary, thus allowing discovery of multiple patterns of group differences. In the case of patient/control comparisons, each such pattern aims to capture a different dimension of a disease, and hence to identify patient subgroups. We validated our model using multiple simulation scenarios and performance measures. We applied this method to resting state functional MRI data from the Baltimore Longitudinal Study of Aging, to investigate heterogeneous effects of aging on brain function in cognitively normal older adults (>85years) relative to a reference group of normal young to middle-aged adults (<60years). We found strong evidence for the presence of two subgroups of older adults, with similar age distributions in each subgroup, but different connectivity patterns associated with aging. While both older subgroups showed reduced functional connectivity in the Default Mode Network (DMN), increases in functional connectivity within the pre-frontal cortex as well as the bilateral insula were observed only for one of the two subgroups. Interestingly, the subgroup showing this increased connectivity (unlike the other subgroup) was, cognitively similar at baseline to the young and middle-aged subjects in two of seven cognitive domains, and had a faster rate of cognitive decline in one of seven domains. These results suggest that older individuals whose baseline cognitive performance is comparable to that of younger individuals recruit their "cognitive reserve" later in life, to compensate for reduced connectivity in other brain regions.
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Affiliation(s)
- Harini Eavani
- Center for Biomedical Image Computing and Analytics, University of Pennsylvania, USA.
| | - Meng Kang Hsieh
- Center for Biomedical Image Computing and Analytics, University of Pennsylvania, USA
| | - Yang An
- National Institute on Aging, Baltimore, USA
| | - Guray Erus
- Center for Biomedical Image Computing and Analytics, University of Pennsylvania, USA
| | | | | | - Christos Davatzikos
- Center for Biomedical Image Computing and Analytics, University of Pennsylvania, USA
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49
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Metzger FG, Ehlis AC, Haeussinger FB, Fallgatter AJ, Hagen K. Effects of cholinesterase inhibitor on brain activation in Alzheimer's patients measured with functional near-infrared spectroscopy. Psychopharmacology (Berl) 2015; 232:4383-91. [PMID: 26359227 DOI: 10.1007/s00213-015-4066-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 08/26/2015] [Indexed: 11/25/2022]
Abstract
RATIONALE Neurobiological effects of neuropsychiatric medication can contribute to the understanding of mechanisms of action and to the evaluation of target medication effects. Cholinesterase inhibitors (ChEI) have been used in patients with Alzheimer's disease (AD) for years with only small knowledge about the underlying neurobiological effects. The measurement of brain activation links neurobiological and functional aspects but is challenging in the group of demented patients; here, an alternative method, functional near-infrared spectroscopy (fNIRS), is introduced to measure those medication effects. OBJECTIVES The current study investigated the influence of ChEI on cortical activation of patients with AD measured using fNIRS during a verbal fluency task (VFT). METHODS In this study, 24 probable AD patients were investigated three times using fNIRS: before medication with rivastigmine was given (t0), when the medication was at the target dose after 4 weeks (t1), and after the target dose was kept constant for a further 8 weeks (t2). RESULTS The results show a concentration increase of oxygenated hemoglobin as measured with fNIRS from t0 to t2 in speech relevant areas and a general decrease in prefrontal areas. Behaviorally, an improvement was found for the VFT used to measure cortical activation during fNIRS. In the neuropsychological test battery, no significant changes were found, yet high effect sizes for the mini mental status examination, immediate and delayed word list recall were found. CONCLUSIONS The results indicate a positive effect of ChEI on cognitive function. The underlying cortical changes can be imaged using fNIRS.
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Affiliation(s)
- Florian G Metzger
- Psychophysiology and Optical Imaging; Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstrasse 14, 72076, Tuebingen, Germany.
- Geriatric Center, University Hospital of Tuebingen, Calwerstrasse 14, Tuebingen, 72076, Germany.
| | - Ann-Christine Ehlis
- Psychophysiology and Optical Imaging; Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstrasse 14, 72076, Tuebingen, Germany
| | - Florian B Haeussinger
- Psychophysiology and Optical Imaging; Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstrasse 14, 72076, Tuebingen, Germany
- Graduate School of Neural Information Processing, University of Tuebingen, Oesterbergstr. 3, Tuebingen, 72074, Germany
| | - Andreas J Fallgatter
- Psychophysiology and Optical Imaging; Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstrasse 14, 72076, Tuebingen, Germany
- Center of Integrative Neuroscience (CIN), Cluster of Excellence, University of Tuebingen, Otfried-Müller-Str. 25, Tuebingen, 72076, Germany
| | - Katja Hagen
- Psychophysiology and Optical Imaging; Department of Psychiatry and Psychotherapy, University Hospital of Tuebingen, Calwerstrasse 14, 72076, Tuebingen, Germany
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50
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Pu S, Nakagome K, Itakura M, Yamanashi T, Sugie T, Miura A, Satake T, Iwata M, Nagata I, Kaneko K. Self-reported social functioning and prefrontal hemodynamic responses during a cognitive task in schizophrenia. Psychiatry Res 2015; 234:121-9. [PMID: 26382107 DOI: 10.1016/j.pscychresns.2015.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 08/10/2015] [Accepted: 09/02/2015] [Indexed: 10/23/2022]
Abstract
Impaired social functioning is a characteristic of schizophrenia that affects patients' quality of life. The aim of the study was to assess prefrontal hemodynamic responses during a cognitive task and establish its influence on psychiatric symptoms, cognitive function, global functioning, and self-reported social functioning in patients with schizophrenia. Thirty-three patients with schizophrenia and 30 age-and sex-matched healthy controls participated in the study. We measured hemodynamic responses in the prefrontal and superior temporal cortical surface areas with 52-channel near-infrared spectroscopy (NIRS) during a verbal fluency task (VFT). Self-reported social functioning was assessed using the Social Functioning Scale (SFS). Regional hemodynamic responses were significantly smaller in the prefrontal and temporal regions in subjects with schizophrenia than in the controls, and prefrontal hemodynamic responses during the VFT showed a strong correlation with SFS total scores. These results suggest an association between self-reported social functioning and prefrontal activation in subjects with schizophrenia. The present study provides evidence that NIRS imaging could be helpful in understanding the neural basis of social functioning.
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Affiliation(s)
- Shenghong Pu
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan.
| | - Kazuyuki Nakagome
- National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo 187-8551, Japan
| | - Masashi Itakura
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Takehiko Yamanashi
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Takuya Sugie
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Akehiko Miura
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Takahiro Satake
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Masaaki Iwata
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Izumi Nagata
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
| | - Koichi Kaneko
- Division of Neuropsychiatry, Department of Brain and Neuroscience, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago, Tottori 683-8504, Japan
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