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Chou PH, Liu WC, Lin WH, Hsu CW, Wang SC, Su KP. NIRS-aided differential diagnosis among patients with major depressive disorder, bipolar disorder, and schizophrenia. J Affect Disord 2023; 341:366-373. [PMID: 37634818 DOI: 10.1016/j.jad.2023.08.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND To establish a clinically applicable neuroimaging-guided diagnostic support system that uses near-infrared spectroscopy (NIRS) for differential diagnosis at the individual level among major depressive disorder (MDD), bipolar disorder (BPD), and schizophrenia (SZ). METHODS A total of 192 participants were recruited, including 40 patients with MDD, 38 patients with BPD, 65 patients with SZ, and 49 healthy individuals. We analyzed the spatiotemporal characteristics of hemodynamic responses in the frontotemporal cortex during a verbal fluency test (VFT) measured by NIRS to assess the accuracy of single-subject classification for differential diagnosis among the three psychiatric disorders. The optimal threshold of the frontal centroid value (54 seconds) was utilized on the basis of the findings of the Japanese study. RESULTS The application of the optimal threshold of the frontal centroid value (54 seconds) allowed for the accurate differentiation of patients with unipolar MDD (72.5%) from BPD (78.9%) or SZ (84.6%). CONCLUSION These results suggest that the NIRS-aided differential diagnosis of major psychiatric disorders can be a promising biomarker in Taiwan. Future multi-site studies are needed to validate our findings.
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Affiliation(s)
- Po-Han Chou
- Department of Psychiatry, China Medical University Hsinchu Hospital, Hsinchu, Taiwan; Dr. Chou's Mental Health Clinic, Hsinchu, Taiwan
| | - Wen-Chun Liu
- An-Nan Hospital, China Medical University, Tainan, Taiwan
| | - Wei-Hao Lin
- Department of Psychiatry, Puli branch, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chih-Wei Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shao-Cheng Wang
- Department of Psychiatry, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan, Taiwan.
| | - Kuan-Pin Su
- An-Nan Hospital, China Medical University, Tainan, Taiwan; Mind-Body Interface Research Center (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; College of Medicine, China Medical University, Taichung, Taiwan.
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2
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Feng K, Law S, Ravindran N, Chen GF, Ma XY, Bo X, Zhang XQ, Shen CY, Li J, Wang Y, Liu XM, Sun JJ, Hu S, Liu PZ. Differentiating between bipolar and unipolar depression using prefrontal activation patterns: Promising results from functional near infrared spectroscopy (fNIRS) findings. J Affect Disord 2021; 281:476-484. [PMID: 33373907 DOI: 10.1016/j.jad.2020.12.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Bipolar depression (BD) is a unique, severe and prevalent mental illness that shares many similarities in symptoms with unipolar depression (UD). Improving precision of their diagnoses would enhance treatment outcome and prognosis for both conditions. This study aims to provide evidence from functional Near-Infrared Spectroscopy (fNIRS) as a potential tool to differentiate UD and BD based on their differences in hemodynamic change in the prefrontal cortex during verbal fluency tasks (VFT). METHODS We enrolled 179 participants with clinically confirmed diagnoses, including 69 UD patients, 68 BD patients and 42 healthy controls(HC). Every participant was assessed using a 45-channel fNIRS and various clinical scales. FINDINGS Compared with HC, region-specific fNIR leads show UD patients had significant lower hemodynamic activation in 4 particular pre-frontal regions: 1) the left dorsolateral prefrontal cortex (DLPFC), 2) orbitofrontal cortex (OFC), 3) bilateral ventrolateral prefrontal cortex (VLPFC) and 4) left inferior frontal gyrus (IFG). In contrast, BD vs. HC comparisons showed only significant lower hemodynamic activation in the LIFG area. Furthermore, compared to BD patients, UD patients showed decreased hemodynamic activation changes in the VLPFC region. CONCLUSION Our results show significant frontal lobe activation pattern differences between UD and BD groups. fNIRS can be a potential tool to increase diagnostic precision for these conditions. In particular, the VLPFC area holds promise to be a useful site for such differentiation for further investigations.
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Affiliation(s)
- Kun Feng
- School of Clinical Medicine, Tsinghua University, Beijing, China; YuQuan Hospital, Tsinghua University, Beijing, 10000 China.
| | - Samuel Law
- Department of Psychiatry, University of Toronto, Canada
| | | | - Gui-Fang Chen
- School of Clinical Medicine, Tsinghua University, Beijing, China; YuQuan Hospital, Tsinghua University, Beijing, 10000 China
| | - Xiang-Yun Ma
- Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders, Beijing, China
| | - Xu Bo
- YuQuan Hospital, Tsinghua University, Beijing, 10000 China
| | | | - Chen-Yu Shen
- YuQuan Hospital, Tsinghua University, Beijing, 10000 China
| | - Juan Li
- School of Clinical Medicine, Tsinghua University, Beijing, China; YuQuan Hospital, Tsinghua University, Beijing, 10000 China
| | - Ye Wang
- Department of Psychiatry, University of Toronto, Canada
| | - Xiao-Min Liu
- Department of Neurology and Psychiatry, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | | | - Shuang Hu
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Po-Zi Liu
- School of Clinical Medicine, Tsinghua University, Beijing, China; YuQuan Hospital, Tsinghua University, Beijing, 10000 China.
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3
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Ho CSH, Lim LJH, Lim AQ, Chan NHC, Tan RS, Lee SH, Ho RCM. Diagnostic and Predictive Applications of Functional Near-Infrared Spectroscopy for Major Depressive Disorder: A Systematic Review. Front Psychiatry 2020; 11:378. [PMID: 32477179 PMCID: PMC7232562 DOI: 10.3389/fpsyt.2020.00378] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 04/15/2020] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Major depressive disorder (MDD) is a global psychiatric disorder with no established biomarker. There is growing evidence that functional near-infrared spectroscopy (fNIRS) has the ability to aid in the diagnosis and prediction of the treatment response of MDD. The aim of this review was to systematically review, and gather the evidence from existing studies that used fNIRS signals in the diagnosis of MDD, correlations with depression symptomatology, and the monitoring of treatment response. METHODS PubMed, EMBASE, ScienceDirect, and Cochrane Library databases were searched for published English articles from 1980 to June 2019 that focused on the application of fNIRS for (i) differentiating depressed versus nondepressed individuals, (ii) correlating with depression symptomatology, and in turn (iii) monitoring treatment responses in depression. Studies were included if they utilized fNIRS to evaluate cerebral hemodynamic variations in patients with MDD of any age group. The quality of the evidence was assessed using the Newcastle-Ottawa quality assessment scale. RESULTS A total of 64 studies were included in this review, with 12 studies being longitudinal, while the rest were cross-sectional. More than two-thirds of the studies (n = 49) had acceptable quality. fNIRS consistently demonstrated attenuated cerebral hemodynamic changes in depressed compared to healthy individuals. fNIRS signals have also shown promise in correlating with individual symptoms of depression and monitoring various treatment responses. CONCLUSIONS This review provides comprehensive updated evidence of the diagnostic and predictive applications of fNIRS in patients with MDD. Future studies involving larger sample sizes, standardized methodology, examination of more brain regions in an integrative approach, and longitudinal follow-ups are needed.
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Affiliation(s)
- Cyrus S H Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lucas J H Lim
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - A Q Lim
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore
| | - Nicole H C Chan
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - R S Tan
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore
| | - S H Lee
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore
| | - Roger C M Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Institute of Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore, Singapore
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Mandibular prognathism attenuates brain blood flow induced by chewing. Sci Rep 2019; 9:19104. [PMID: 31836754 PMCID: PMC6911081 DOI: 10.1038/s41598-019-55553-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 11/28/2019] [Indexed: 11/30/2022] Open
Abstract
Mastication is closely related to brain function. Animal experiments have revealed that tooth loss has a negative influence on brain function. Clinical studies also suggest that normal occlusion is an essential factor for favorable brain function. Mandibular prognathism (MP) usually results in occlusal dysfunction. However, the relationship between MP and brain function remains unclear. In the present study, we examined the relationship between MP and brain function by measuring brain blood flow (BBF). Seventeen subjects with normal occlusion (NORM) and 25 patients with MP participated in this study. The number of occlusal contacts were counted. Electromyography of the masseter muscles during clenching was also recorded. BBF was measured with non-invasive functional near-infrared spectroscopy during calculation task and chewing task. The number of the occlusal contacts and masseter muscle activity were lower in MP compared with NORM. The calculation task increased BBF in both groups. The chewing task also increased BBF in the inferior frontal gyrus in both groups, although the increase in MP was smaller than in NORM. We discovered that patients with MP exhibited a smaller increase in BBF at the inferior frontal gyrus during chewing as compared with NORM. As such, MP would negatively affect brain function.
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Baik SY, Kim JY, Choi J, Baek JY, Park Y, Kim Y, Jung M, Lee SH. Prefrontal Asymmetry during Cognitive Tasks and its Relationship with Suicide Ideation in Major Depressive Disorder: An fNIRS Study. Diagnostics (Basel) 2019; 9:E193. [PMID: 31731795 PMCID: PMC6963177 DOI: 10.3390/diagnostics9040193] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/08/2019] [Accepted: 11/13/2019] [Indexed: 01/25/2023] Open
Abstract
Reduced oxygenation changes in the prefrontal cortex during cognitive tasks have been reported in major depressive disorder (MDD). However, prefrontal asymmetry during cognitive tasks and its relation to suicide ideations have been less frequently examined in patients with MDD. This study investigated prefrontal asymmetry and its moderating effect on the relationship between depression severity and suicidal ideation in MDD patients during cognitive tasks. Forty-two patients with MDD and 64 healthy controls (HCs) were assessed for changes in oxygenated and deoxygenated hemoglobin (Hb) in the prefrontal cortex using functional near-infrared spectroscopy (fNIRS) during the verbal fluency task (VFT), Stroop task, and two-back task. Depression, anxiety, and suicide ideation were measured through self-report questionnaires. Relatively smaller left oxy-Hb changes during VFT, but not during the Stroop or two-back tasks, were found in MDD patients compared with HCs. Furthermore, prefrontal asymmetry during VFT moderated the effect of depression severity on suicide ideation, and was significantly and positively correlated with suicide ideation in patients with MDD. Specifically, relatively greater left oxy-Hb changes were associated with greater suicide ideation. These findings suggest fNIRS-measured prefrontal asymmetry as a potential biomarker for MDD and for the assessment of suicidal risk in patients with MDD.
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Affiliation(s)
- Seung Yeon Baik
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
| | - Jeong-Youn Kim
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
| | | | | | - Yeonsoo Park
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
| | - Yourim Kim
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
| | - Minjee Jung
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
| | - Seung-Hwan Lee
- Clinical Emotion and Cognition Research Laboratory, Inje University, Goyang 411-706, Korea; (S.Y.B.)
- Department of Psychiatry, Inje University, Ilsan Paik Hospital, Goyang 411-706, Korea
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Downey D, Brigadoi S, Trevithick L, Elliott R, Elwell C, McAllister-Williams RH, Anderson IM. Frontal haemodynamic responses in depression and the effect of electroconvulsive therapy. J Psychopharmacol 2019; 33:1003-1014. [PMID: 31237182 PMCID: PMC6628632 DOI: 10.1177/0269881119858313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Reduced frontal cortex metabolism and blood flow in depression may be associated with low mood and cognitive impairment. Further reduction has been reported during a course of electroconvulsive therapy but it is not known if this relates to mood and cognitive changes caused by electroconvulsive therapy. AIMS The purpose of this study was to investigate frontal function while undertaking cognitive tasks in depressed patients compared with healthy controls, and following electroconvulsive therapy in patients. METHODS We measured frontal haemodynamic responses to a category verbal fluency task and a working memory N-back task using portable functional near infra-red spectroscopy (fNIRS) in 51 healthy controls and 18 severely depressed patients, 12 of whom were retested after the fourth treatment of a course of electroconvulsive therapy. Mood was assessed using the Montgomery Åsberg Depression Rating Scale and cognitive function using category Verbal Fluency from the Controlled Oral Word Association Test and Digit Span backwards. RESULTS Compared to healthy controls, depressed patients had bilaterally lower frontal oxyhaemoglobin responses to the cognitive tasks, although this was only significant for the N-Back task where performance correlated inversely with depression severity in patients. After four electroconvulsive therapy treatments oxyhaemoglobin responses were further reduced during the Verbal Fluency task but the changes did not correlate with mood or cognitive changes. DISCUSSION Our results confirmed a now extensive literature showing impaired frontal fNIRS oxyhaemoglobin responses to cognitive tasks in depression, and showed for the first time that these are further reduced during a course of electroconvulsive therapy. Further research is needed to investigate the biology and clinical utility of frontal fNIRS in psychiatric patients.
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Affiliation(s)
- Darragh Downey
- Faculty of Biology, Medicine and Health,
The University of Manchester, Manchester, UK
| | - Sabrina Brigadoi
- Biomedical Optics Research Laboratory,
University College London, London, UK,Department of Developmental and Social
Psychology, University of Padova, Padova, Italy
| | - Liam Trevithick
- School of Psychology, Newcastle
University, Newcastle upon Tyne, UK,Northumberland Tyne and Wear NHS
Foundation Trust, Newcastle upon Tyne, UK
| | - Rebecca Elliott
- Neuroscience and Psychiatry Unit, The
University of Manchester, Manchester, UK
| | - Clare Elwell
- Biomedical Optics Research Laboratory,
University College London, London, UK
| | - R Hamish McAllister-Williams
- School of Psychology, Newcastle
University, Newcastle upon Tyne, UK,Neuroscience and Psychiatry Unit, The
University of Manchester, Manchester, UK
| | - Ian M Anderson
- Institute of Neuroscience, Newcastle
University, Newcastle upon Tyne, UK,Ian M Anderson, Neuroscience and Psychiatry
Unit, The University of Manchester and Manchester Academic Health Science
Centre, Room G809, Stopford Building, Oxford Road, Manchester, M13 9PT, UK.
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7
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King JL, Kaimal G. Approaches to Research in Art Therapy Using Imaging Technologies. Front Hum Neurosci 2019; 13:159. [PMID: 31156413 PMCID: PMC6534043 DOI: 10.3389/fnhum.2019.00159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/30/2019] [Indexed: 11/17/2022] Open
Affiliation(s)
- Juliet L King
- Department of Art Therapy, The George Washington University, Washington, DC, United States.,Department of Neurology, School of Medicine, Indiana University, Indianapolis, IN, United States
| | - Girija Kaimal
- Department of Creative Arts Therapies, Drexel University, Philadelphia, PA, United States
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Briggs R, Carey D, Claffey P, McNicholas T, Newman L, Nolan H, Kennelly SP, Kenny RA. The association between frontal lobe perfusion and depressive symptoms in later life. Br J Psychiatry 2019; 214:230-236. [PMID: 30606275 DOI: 10.1192/bjp.2018.288] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Deficits in frontal lobe perfusion have been demonstrated in late-life depression; however, studies to date have generally involved small numbers, used neuroimaging rather than bedside testing and have not controlled for important covariates.AimsWe aimed to examine the association between depressive symptoms and frontal lobe perfusion during standing, in a large cohort of community-dwelling older people. METHOD Participants aged ≥50 years underwent continuous measurement of orthostatic blood pressure by finometry, and frontal lobe perfusion by near-infrared spectroscopy. Depressive symptoms were assessed by the eight-item Centre for Epidemiological Studies Depression Scale. Real-time frontal lobe cerebral oxygenation was measured by the Portalite System, detecting changes in frontal lobe perfusion and reporting a tissue saturation index score. RESULTS Almost 8% (209 out of 2616) had clinically significant depressive symptoms. Multilevel models demonstrated a significantly lower tissue saturation index in participants with depressive symptoms at both 60 and 90 s post-stand, with coefficients of -0.43 (95% CI -0.63 to -0.22) and -0.37 (95% CI -0.57 to -0.16), respectively. Controlling for relevant covariates did not significantly attenuate these associations. After addition of systolic blood pressure this association was no longer significant, suggesting lower blood pressure may modify this relationship. CONCLUSIONS This study demonstrates that lower frontal lobe perfusion, related to lower values of baseline systolic blood pressure, is associated with clinically significant depressive symptoms in a cohort of community-dwelling older people. Given the recognised longitudinal association between lower blood pressure and depression in older people, this may represent a potential therapeutic target for prevention of incident depression.Declaration of interestNone.
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Affiliation(s)
- Robert Briggs
- Research Fellow, The Irish Longitudinal Study on Ageing,Trinity College Dublin;Mercer's Institute for Successful Ageing,St James's Hospital; andAge-related Health Care,Tallaght Hospital,Ireland
| | - Daniel Carey
- Biostatistician, The Irish Longitudinal Study on Ageing,Trinity College Dublin,Ireland
| | - Paul Claffey
- Registrar in Geriatric Medicine, Mercer's Institute for Successful Ageing,St James's Hospital,Ireland
| | - Triona McNicholas
- Research Fellow, The Irish Longitudinal Study on Ageing,Trinity College Dublin; andMercer's Institute for Successful Ageing,St James's Hospital,Ireland
| | - Louise Newman
- Bioengineer, The Irish Longitudinal Study on Ageing,Trinity College Dublin,Ireland
| | - Hugh Nolan
- Bioengineer, The Irish Longitudinal Study on Ageing,Trinity College Dublin,Ireland
| | - Sean P Kennelly
- Consultant Geriatrician, Age-related Health Care,Tallaght Hospital,Ireland
| | - Rose Anne Kenny
- Consultant Geriatrician, The Irish Longitudinal Study on Ageing,Trinity College Dublin; andMercer's Institute for Successful Ageing,St James's Hospital,Ireland
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Balada F, Lucas I, Blanch Á, Blanco E, Aluja A. Neuroticism is associated with reduced oxygenation levels in the lateral prefrontal cortex following exposure to unpleasant images. Physiol Behav 2019; 199:66-72. [DOI: 10.1016/j.physbeh.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/04/2018] [Accepted: 11/02/2018] [Indexed: 12/22/2022]
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Barahimi S, Einalou Z, Dadgostar M. STUDIES ON SCHIZOPHRENIA AND DEPRESSIVE DISEASES BASED ON FUNCTIONAL NEAR-INFRARED SPECTROSCOPY. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2018. [DOI: 10.4015/s101623721830002x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Many investigations have been carried out on functional near infrared spectroscopy (fNIRS) applications in depression and schizophrenia patients that are most mysterious and costliest mental disorders in current society. fNIRS is a new optical method which assesses brain cortex hemodynamic and nervous activities non-invasively and it has been used in medicine as a study tool. Most of the researches of this approach have assessed the homodynamic response of frontal and temporal regions by means of various cognitive tasks. In this research, first, the cognitive task execution techniques have been explained concisely, and then some findings of fNIRS-based researches about depression and schizophrenia have been summarized and assessed. In fNIRS studies that have used various devices with different number of channels, the brain cortex functionality in schizophrenia and depressive patients has been investigated. The results demonstrate that a decrease in prefrontal regions activities can be observed in schizophrenia and depressive patients. Also more detailed studies illustrate ventrolateral, prefrontal and frontopolar region disorders. In severe depressive patients, a decrease in activities of prefrontal and temporal regions has been detected. Therefore, by paying attention to the deficiencies in these regions’ functions, it is possible to treat these diseases.
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Affiliation(s)
- Shekoufe Barahimi
- Department of Biomedical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Einalou
- Department of Biomedical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mehrdad Dadgostar
- Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Narita N, Kamiya K, Makiyama Y, Iwaki S, Komiyama O, Ishii T, Wake H. Prefrontal modulation during chewing performance in occlusal dysesthesia patients: a functional near-infrared spectroscopy study. Clin Oral Investig 2018; 23:1181-1196. [DOI: 10.1007/s00784-018-2534-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 06/20/2018] [Indexed: 02/01/2023]
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12
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Fu L, Xiang D, Xiao J, Yao L, Wang Y, Xiao L, Wang H, Wang G, Liu Z. Reduced Prefrontal Activation During the Tower of London and Verbal Fluency Task in Patients With Bipolar Depression: A Multi-Channel NIRS Study. Front Psychiatry 2018; 9:214. [PMID: 29892235 PMCID: PMC5985469 DOI: 10.3389/fpsyt.2018.00214] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/07/2018] [Indexed: 02/06/2023] Open
Abstract
Background: The Tower of London (TOL) task is one of the most commonly used tests for evaluating executive functions, and can indicate planning and problem-solving abilities. The aim of this study was to evaluate hemodynamic changes between the task period and rest period in patients with bipolar depression during the TOL task and the verbal fluency task (VFT) using near-infrared spectroscopy (NIRS). Methods: Forty-three patients with bipolar depression and 32 healthy controls (HCs) matched for sex, age, handedness, and years of education were enrolled in this study. All participants were aged between 16 and 50. All patients in our study were taking medications such as antidepressants, antipsychotics and mood stabilizers at the time of measurement. Changes in oxygenated hemoglobin (oxy-Hb) levels in frontal areas during the TOL task and VFT were evaluated using a 41-channel NIRS system. Results: During the TOL task, the patients with bipolar depression exhibited significantly smaller changes in the bilateral dorsal-lateral prefrontal cortex (DLPFC) than the HCs. During the VFT task, the patients with bipolar depression exhibited significantly smaller changes in the right ventrolateral prefrontal cortex (VLPFC), the right DLPFC and both the right and left prefrontal cortex (PFC) than the HCs. Limitations: Our sample size was small, and the effects of medication cannot be excluded. Conclusions: These results indicate that planning and problem solving dysfunction is related to the impairment of the prefrontal cortex in patients with bipolar depression, and NIRS can be used to assess planning and problem solving abilities, which are essential to daily life in patients with bipolar disorder.
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Affiliation(s)
- Linyan Fu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Dan Xiang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiawei Xiao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lihua Yao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ying Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ling Xiao
- Institute of Neuropsychiatry, Renmin Hospital, Wuhan University, Wuhan, China
| | - Huiling Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China
| | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China.,Institute of Neuropsychiatry, Renmin Hospital, Wuhan University, Wuhan, China
| | - Zhongchun Liu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China.,Institute of Neuropsychiatry, Renmin Hospital, Wuhan University, Wuhan, China
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