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Fitzsimmons SMDD, Postma T, van Campen AD, Vriend C, Batelaan NM, van Oppen P, Hoogendoorn AW, van der Werf YD, van den Heuvel OA. TMS-induced plasticity improving cognitive control in OCD I: Clinical and neuroimaging outcomes from a randomised trial of rTMS for OCD. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.04.23298100. [PMID: 37961433 PMCID: PMC10635261 DOI: 10.1101/2023.11.04.23298100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Background Repetitive transcranial magnetic stimulation (rTMS) is an emerging treatment option for obsessive-compulsive disorder (OCD). The neurobiological mechanisms of rTMS in OCD have, however, been incompletely characterized. We compared clinical outcomes and changes in task-based brain activation following three different rTMS stimulation protocols, all combined with exposure and response prevention (ERP). Methods In this three-arm proof-of-concept randomized controlled clinical trial, 61 treatment-refractory adult OCD patients received 16 sessions of rTMS immediately prior to ERP over 8 weeks, with task-based functional MRI (tb-fMRI) scans and clinical assessments pre- and post-treatment. Patients received either: high frequency (HF) rTMS to the left dorsolateral prefrontal cortex (DLPFC) (n=19 (6M/13F)); HF rTMS to the left pre-supplementary motor area (preSMA) (n=23 (10M/13F)); or control rTMS to the vertex (n=19 (6M/13F)). Changes in tb-fMRI activation pre-post treatment were compared using both a Bayesian region-of-interest and a general linear model whole-brain approach. Results Mean OCD symptom severity decreased significantly in all treatment groups (delta=- 10.836, p<0.001, 95% CI [-12.504, -9.168]), with no differences between groups. Response rate in the entire sample was 57.4%. Groups receiving DLPFC or preSMA rTMS showed, respectively, a decrease in planning and error processing task-related activation after treatment that was associated with symptom improvement, while individuals in the vertex rTMS group with greater symptom improvement showed an increase in inhibition-related activation. Conclusions PreSMA and DLPFC rTMS combined with ERP led to significant symptom improvement related to activation decreases in targeted task networks, although we observed no differences in symptom reduction between groups. This trial was registered at clinicaltrials.gov ( NCT03667807 ).
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Li Y, Pang J, Wang J, Wang W, Bo Q, Lei L, Wang X, Wang M. High-frequency rTMS over the left DLPFC improves the response inhibition control of young healthy participants: an ERP combined 1H-MRS study. Front Psychol 2023; 14:1144757. [PMID: 37275686 PMCID: PMC10233929 DOI: 10.3389/fpsyg.2023.1144757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/25/2023] [Indexed: 06/07/2023] Open
Abstract
Introduction Unlike the effect of repetitive transcranial magnetic stimulation (rTMS) in treating neuropsychiatric diseases, little is known about how personal factors might account for the disparity of results from studies of cognition and rTMS. In this study, we investigated the effects of high-frequency rTMS on response inhibition control and explored the time course changes in cognitive processing and brain metabolic mechanisms after rTMS using event-related potentials (ERPs) and magnetic resonance spectroscopy (1H-MRS). Methods Participants were all right-handed and were naive to rTMS and the Go/NoGo task. Twenty-five healthy young participants underwent one 10 Hz rTMS session per day in which stimulation was applied over the left dorsolateral prefrontal cortex (DLPFC), and a homogeneous participant group of 25 individuals received a sham rTMS treatment for 1 week. A Go/NoGo task was performed, an electroencephalogram (EEG) was recorded, and 1H-MRS was performed. Results The results revealed that there was a strong trend of decreasing commission errors of NoGo stimuli by high frequency rTMS over the left DLPFC, whereas there was no significant difference between before and after rTMS treatment with respect to these parameters in the sham rTMS group. High-frequency rTMS significantly increased the amplitude of NoGo-N2 but not Go-N2, Go-P3, or NoGo-P3. The myo-inositol /creatine complex (MI/Cr) ratio, indexing cerebral metabolism, in the left DLPFC was decreased in the rTMS treated group. Discussion This observation supports the view that high-frequency rTMS over the left DLPFC has the strong tendency of reducing commission errors behaviorally, increase the amplitude of NoGo-N2 and improve the response inhibition control of healthy young participants. The results are consistent with the excitatory properties of high frequency rTMS. We suggest that the increase in the NoGo-N2 amplitude may be related to the increased excitability of the DLPFC-anterior cingulate cortex (ACC) neural loop. Metabolic changes in the DLPFC may be a possible mechanism for the improvement of the response inhibition control of rTMS.
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Affiliation(s)
- Yanmin Li
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang, Hebei, China
- Department of Neurology, Hebei Hospital of Xuanwu Hospital Capital Medical University, Shijiazhuang, Hebei, China
| | - Jianmin Pang
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jing Wang
- Department of Respiratory Medicine, Harrison International Peace Hospital, Hengshui, Hebei, China
| | - Wei Wang
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang, Hebei, China
- Department of Neurology, Hebei Hospital of Xuanwu Hospital Capital Medical University, Shijiazhuang, Hebei, China
| | - Qianlan Bo
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang, Hebei, China
- Department of Neurology, Hebei Hospital of Xuanwu Hospital Capital Medical University, Shijiazhuang, Hebei, China
| | - Licun Lei
- Department of Radiology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiayue Wang
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang, Hebei, China
- Department of Neurology, Hebei Hospital of Xuanwu Hospital Capital Medical University, Shijiazhuang, Hebei, China
| | - Mingwei Wang
- Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Brain Aging and Cognitive Neuroscience Laboratory of Hebei Province, Shijiazhuang, Hebei, China
- Department of Neurology, Hebei Hospital of Xuanwu Hospital Capital Medical University, Shijiazhuang, Hebei, China
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Ding X, Li X, Xu M, He Z, Jiang H. The effect of repetitive transcranial magnetic stimulation on electroencephalography microstates of patients with heroin-addiction. Psychiatry Res Neuroimaging 2023; 329:111594. [PMID: 36724624 DOI: 10.1016/j.pscychresns.2023.111594] [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: 11/11/2022] [Revised: 12/28/2022] [Accepted: 01/10/2023] [Indexed: 01/30/2023]
Abstract
The effects of transcranial magnetic stimulation in treating substance use disorders are gaining attention; however, most existing studies used subjective measures to examine the treatment effects. Objective electroencephalography (EEG)-based microstate analysis is important for measuring the efficacy of transcranial magnetic stimulation in patients with heroin addiction. We investigated dynamic brain activity changes in individuals with heroin addiction after transcranial magnetic stimulation using microstate indicators. Thirty-two patients received intermittent theta-burst stimulation (iTBS) over the left dorsolateral prefrontal cortex. Resting-state EEG data were collected pre-intervention and 10 days post-intervention. The feature values of the significantly different microstate classes were computed using a K-means clustering algorithm. Four EEG microstate classes (A-D) were noted. There were significant increases in the duration, occurrence, and contribution of microstate class A after the iTBS intervention. K-means classification accuracy reached 81.5%. The EEG microstate is an effective improvement indicator in patients with heroin addiction treated with iTBS. Microstates were examined using machine learning; this method effectively classified the pre- and post-intervention cohorts among patients with heroin addiction and healthy individuals. Using EEG microstate to measure heroin addiction and further exploring the effect of iTBS in patients with heroin addiction merit clinical investigation.
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Affiliation(s)
- Xiaobin Ding
- School of Psychology, Northwest Normal University, Lanzhou 730000, China
| | - Xiaoyan Li
- School of Psychology, Northwest Normal University, Lanzhou 730000, China.
| | - Ming Xu
- School of Psychology, Northwest Normal University, Lanzhou 730000, China
| | - Zijing He
- School of Psychology, Northwest Normal University, Lanzhou 730000, China
| | - Heng Jiang
- School of Psychology, Northwest Normal University, Lanzhou 730000, China
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Liu S, Wang X, Ma J, Wang K, Wang Z, Li J, Chen J, Zhan H, Wu W. Effect of Low-Frequency Repetitive Transcranial Magnetic Stimulation on Executive Function and Its Neural Mechanism: An Event-Related Potential Study. Front Neurosci 2021; 15:701560. [PMID: 34776839 PMCID: PMC8580383 DOI: 10.3389/fnins.2021.701560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/29/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: Executive function refers to the conscious control of thinking and behavior in psychological process. Executive dysfunction widely exists in a variety of neuropsychiatric diseases, and is closely related to the decline of daily living ability and function. This study intends to explore the effect of low-frequency repetitive transcranial magnetic stimulation (rTMS) on executive function and its neural mechanism by using event-related potential (ERP), so as to provide basis for further study on the relationship between cerebral cortex and executive function. Methods: Task switching paradigm was used to study the cognitive flexibility in executive function. Thirty-one healthy subjects were randomly assigned to receive rTMS stimulations (1 Hz rTMS or sham rTMS) to the left dorsolateral prefrontal cortex (DLPFC) twice. The switching task and the electroencephalography EEG recordings were performed before (pre-rTMS/pre-sham rTMS) and immediately after the end of the rTMS application (post-rTMS/post-sham rTMS). Results: The analysis of RTs showed that the main effects of switching and time were statistically significant. Further analysis revealed that the RT of rTMS stimulation was longer than sham rTMS at post-stimulation. ERP analysis showed that there was a significant switching effect in frontal and central scalp location, and the P2 amplitude in switch trials was greater than that in non-switch trials. At post-stimulation, the N2 amplitude of rTMS is more negative than that of sham rTMS at non-switch trials, whereas no such difference was found at switch trials. The P3 amplitude and LPC amplitude are significantly reduced by rTMS at post-stimulation. Conclusion: Low-frequency rTMS of the left DLPFC can cause decline of cognitive flexibility in executive function, resulting in the change of N2 amplitude and the decrease of P3 and LPC components during task switching, which is of positive significance for the evaluation and treatment of executive function.
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Affiliation(s)
- Sishi Liu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Xianglong Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Junqin Ma
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Kangling Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhengtao Wang
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Li
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiali Chen
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hongrui Zhan
- Department of Rehabilitation, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Wen Wu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
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The effect of non-invasive brain stimulation on executive functioning in healthy controls: A systematic review and meta-analysis. Neurosci Biobehav Rev 2021; 125:122-147. [PMID: 33503477 DOI: 10.1016/j.neubiorev.2021.01.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 12/07/2020] [Accepted: 01/11/2021] [Indexed: 01/01/2023]
Abstract
In recent years, there has been a heightened interest in the effect of non-invasive brain stimulation on executive functioning. However, there is no comprehensive overview of its effects on different executive functioning domains in healthy individuals. Here, we assessed the state of the field by conducting a systematic review and meta-analysis on the effectiveness of non-invasive brain stimulation (i.e. repetitive transcranial magnetic stimulation and transcranial direct current stimulation) over prefrontal regions on tasks assessing working memory, inhibition, flexibility, planning and initiation performance. Our search yielded 63 studies (n = 1537), and the effectiveness of excitatory and inhibitory non-invasive brain stimulation were assessed per executive functioning task. Our analyses showed that excitatory non-invasive brain stimulation had a small but positive effect on Stop Signal Task and Go/No-Go Task performance, and that inhibitory stimulation had a small negative effect on Flanker Task performance. Non-invasive brain stimulation did not affect performance on working memory and flexibility tasks, and effects on planning tasks were inconclusive.
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Yin M, Liu Y, Zhang L, Zheng H, Peng L, Ai Y, Luo J, Hu X. Effects of rTMS Treatment on Cognitive Impairment and Resting-State Brain Activity in Stroke Patients: A Randomized Clinical Trial. Front Neural Circuits 2020; 14:563777. [PMID: 33117131 PMCID: PMC7561423 DOI: 10.3389/fncir.2020.563777] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/07/2020] [Indexed: 12/13/2022] Open
Abstract
Background Repetitive transcranial magnetic stimulation (rTMS) has been employed for motor function rehabilitation for stroke patients, but its effects on post-stroke cognitive impairment (PSCI) remains controversial. Objective To identify the effects of rTMS intervention on PSCI patients and its potential neural correlates to behavioral improvements. Methods We recruited 34 PSCI patients for 20 sessions of 10 Hz rTMS or no-stim control treatments over the left dorsal lateral prefrontal cortex (DLPFC). Cognitive function was evaluated with the Montreal Cognitive Assessment Scale, Victoria Stroop Test, Rivermead Behavior Memory Test, and Activities of Daily Living (ADL) assessed with the Modified Barthel Index. 14 patients received functional MRI scan, a useful non-invasive technique of determining how structurally segregated and functionally specialized brain areas were interconnected, which was reflected by blood oxygenation level–dependent signals. The amplitude of low-frequency fluctuation (ALFF) and functional connectivity (FC) were applied as the analytical approaches, which were used to measure the resting-state brain activity and functional connection. Results rTMS improved cognitive functions and ADLs for PSCI patients relative to patients who received no-stim control treatment. The cognitive improvements correlated to increased ALFF of the left medial prefrontal cortex, and increased FC of right medial prefrontal cortex and right ventral anterior cingulate cortex. Conclusion 10 Hz rTMS at DLPFC could improve cognitive function and quality of life for PSCI patients, which is associated with an altered frontal cortical activity. Clinical Registration Chinese Clinical Trial Registry, ChiCTR-IPR-17011908, http://www.chictr.org.cn/index.aspx.
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Affiliation(s)
- Mingyu Yin
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuanwen Liu
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liying Zhang
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haiqing Zheng
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lingrong Peng
- Department of Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yinan Ai
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Luo
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiquan Hu
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Trung J, Hanganu A, Jobert S, Degroot C, Mejia-Constain B, Kibreab M, Bruneau MA, Lafontaine AL, Strafella A, Monchi O. Transcranial magnetic stimulation improves cognition over time in Parkinson's disease. Parkinsonism Relat Disord 2019; 66:3-8. [PMID: 31300260 DOI: 10.1016/j.parkreldis.2019.07.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/19/2019] [Accepted: 07/06/2019] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Cognitive impairment can occur in the early phase of Parkinson's disease and increases the risk of developing dementia. Cognitive deficits were shown to be associated with functional alterations in the dorsolateral prefrontal cortex (DLPFC) and caudate nucleus. Two previous transcranial magnetic stimulation studies over the left DLPFC showed short-term improvement in cognitive performance and focused on specific task. METHODS 28 patients with idiopathic Parkinson's disease and mild cognitive impairment received intermittent "theta burst" stimulation (iTBS) (active, N = 14; or sham, N = 14) over the left DLPFC, twice a day for three days with 1-2 days in between. Detailed neuropsychological assessment of five cognitive domains was performed before iTBS and on days 1, 10, and 30 after the last iTBS session. Composite Z-scores were calculated for each domain and for overall cognition. RESULTS Our results showed an increase in overall cognition up to one month in both groups but this effect was only significant in the active group. Improvements were seen in the attention domain for both groups and in the visuospatial domain in the active group only. No significant differences were found between the groups. CONCLUSION These preliminary findings suggest that active iTBS might improve overall cognitive performance in patients with Parkinson's disease with mild cognitive impairment and that this effect can last up to one month. This cognitive improvement, is likely mediated by improvement on visuospatial abilities. Further studies are needed to explore the potential of iTBS as a therapeutical tool to slow cognitive decline in patients with Parkinson's disease.
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Affiliation(s)
- Jessica Trung
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Alexandru Hanganu
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada; Department of Clinical Neurosciences and Department of Radiology, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, AB, Canada; Department of Psychology, University of Montreal, Montreal, QC, Canada
| | - Stevan Jobert
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Clotilde Degroot
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada; McGill University, Montreal, QC, Canada
| | - Beatriz Mejia-Constain
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | - Mekale Kibreab
- Department of Clinical Neurosciences and Department of Radiology, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, AB, Canada
| | - Marie-Andrée Bruneau
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada
| | | | - Antonio Strafella
- Department of Medicine, Division of Neurology, University of Toronto, ON, Canada
| | - Oury Monchi
- CIUSSS Centre-Sud-de-l'Île-de-Montréal, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada; Department of Clinical Neurosciences and Department of Radiology, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, AB, Canada; McGill University, Montreal, QC, Canada.
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Konstantinou N, Pettemeridou E, Stamatakis EA, Seimenis I, Constantinidou F. Altered Resting Functional Connectivity Is Related to Cognitive Outcome in Males With Moderate-Severe Traumatic Brain Injury. Front Neurol 2019; 9:1163. [PMID: 30687219 PMCID: PMC6335280 DOI: 10.3389/fneur.2018.01163] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 12/17/2018] [Indexed: 12/30/2022] Open
Abstract
TBI results in significant cognitive impairments and in altered brain functional connectivity. However, no studies explored so far, the relationship between global functional connectivity and cognitive outcome in chronic moderate-severe TBI. This proof of principle study employed the intrinsic connectivity contrast, an objective voxel-based metric of global functional connectivity, in a small sample of chronic moderate-severe TBI participants and a group of healthy controls matched on gender (males), age, and education. Cognitive tests assessing executive functions, verbal memory, visual memory, attention/organization, and cognitive reserve were administered. Group differences in terms of global functional connectivity maps were assessed and the association between performance on the cognitive measures and global functional connectivity was examined. Next, we investigated the spatial extent of functional connectivity in the brain regions found to be associated with cognitive performance, using traditional seed-based analyses. Global functional connectivity of the TBI group was altered, compared to the controls. Moreover, the strength of global functional connectivity in affected brain areas was associated with cognitive outcome. These findings indicate that impaired global functional connectivity is a significant consequence of TBI suggesting that cognitive impairments following TBI may be partly attributed to altered functional connectivity between brain areas involved in the specific cognitive functions.
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Affiliation(s)
- Nikos Konstantinou
- Department of Rehabilitation Sciences, Cyprus University of Technology, Limassol, Cyprus
| | - Eva Pettemeridou
- Center for Applied Neuroscience, University of Cyprus, Nicosia, Cyprus.,Department of Psychology, University of Cyprus, Nicosia, Cyprus
| | | | - Ioannis Seimenis
- Medical Physics Laboratory, Medical School, Democritus University of Thrace, Alexandroupoli, Greece
| | - Fofi Constantinidou
- Center for Applied Neuroscience, University of Cyprus, Nicosia, Cyprus.,Department of Psychology, University of Cyprus, Nicosia, Cyprus
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Zoon HFA, de Bruijn SEM, Smeets PAM, de Graaf C, Janssen IMC, Schijns W, Aarts EO, Jager G, Boesveldt S. Altered neural responsivity to food cues in relation to food preferences, but not appetite-related hormone concentrations after RYGB-surgery. Behav Brain Res 2018; 353:194-202. [PMID: 30041007 DOI: 10.1016/j.bbr.2018.07.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND After Roux-en-Y gastric bypass (RYGB) surgery, patients report a shift in food preferences away from high-energy foods. OBJECTIVE We aimed to elucidate the potential mechanisms underlying this shift in food preferences by assessing changes in neural responses to food pictures and odors before and after RYGB. Additionally, we investigated whether altered neural responsivity was associated with changes in plasma endocannabinoid and ghrelin concentrations. DESIGN 19 RYGB patients (4 men; age 41 ± 10 years; BMI 41 ± 1 kg/m2 before; BMI 36 ± 1 kg/m2 after) participated in this study. Before and two months after RYGB surgery, they rated their food preferences using the Macronutrient and Taste Preference Ranking Task and BOLD fMRI responses towards pictures and odors of high-, and low-energy foods and non-food items were measured. Blood samples were taken to determine plasma endocannabinoid and ghrelin concentrations pre- and post-surgery. RESULTS Patients demonstrated a shift in food preferences away from high-fat/sweet and towards low-energy/savory food products, which correlated with decreased superior parietal lobule responsivity to high-energy food odor and a reduced difference in precuneus responsivity to high-energy versus low-energy food pictures. In the anteroventral prefrontal cortex (superior frontal gyrus) the difference in deactivation towards high-energy versus non-food odors reduced. The precuneus was less deactivated in response to all cues. Plasma concentrations of anandamide were higher after surgery, while plasma concentrations of other endocannabinoids and ghrelin did not change. Alterations in appetite-related hormone concentrations did not correlate with changes in neural responsivity. CONCLUSIONS RYGB leads to changed responsivity of the frontoparietal control network that orchestrates top-down control to high-energy food compared to low-energy food and non-food cues, rather than in reward related brain regions, in a satiated state. Together with correlations with the shift in food preference from high- to low-energy foods this indicates a possible role in new food preference formation.
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Affiliation(s)
- Harriët F A Zoon
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Suzanne E M de Bruijn
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Paul A M Smeets
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands; Image Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cees de Graaf
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | | | - Wendy Schijns
- Vitalys Obesity Centre, Rijnstate Hospital, Arnhem, The Netherlands
| | - Edo O Aarts
- Vitalys Obesity Centre, Rijnstate Hospital, Arnhem, The Netherlands
| | - Gerry Jager
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Sanne Boesveldt
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands.
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On the relation between theory of mind and executive functioning: A developmental cognitive neuroscience perspective. Psychon Bull Rev 2018; 25:2119-2140. [DOI: 10.3758/s13423-018-1459-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Bridges NR, McKinley RA, Boeke D, Sherwood MS, Parker JG, McIntire LK, Nelson JM, Fletchall C, Alexander N, McConnell A, Goodyear C, Nelson JT. Single Session Low Frequency Left Dorsolateral Prefrontal Transcranial Magnetic Stimulation Changes Neurometabolite Relationships in Healthy Humans. Front Hum Neurosci 2018; 12:77. [PMID: 29632477 PMCID: PMC5879132 DOI: 10.3389/fnhum.2018.00077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 02/12/2018] [Indexed: 11/13/2022] Open
Abstract
Background: Dorsolateral prefrontal cortex (DLPFC) low frequency repetitive transcranial magnetic stimulation (LF-rTMS) has shown promise as a treatment and investigative tool in the medical and research communities. Researchers have made significant progress elucidating DLPFC LF-rTMS effects—primarily in individuals with psychiatric disorders. However, more efforts investigating underlying molecular changes and establishing links to functional and behavioral outcomes in healthy humans are needed. Objective: We aimed to quantify neuromolecular changes and relate these to functional changes following a single session of DLPFC LF-rTMS in healthy participants. Methods: Eleven participants received sham-controlled neuronavigated 1 Hz rTMS to the region most activated by a 7-letter Sternberg working memory task (SWMT) within the left DLPFC. We quantified SWMT performance, functional magnetic resonance activation and proton Magnetic resonance spectroscopy (MRS) neurometabolite measure changes before and after stimulation. Results: A single LF-rTMS session was not sufficient to change DLPFC neurometabolite levels and these changes did not correlate with DLPFC activation changes. Real rTMS, however, significantly altered neurometabolite correlations (compared to sham rTMS), both with baseline levels and between the metabolites themselves. Additionally, real rTMS was associated with diminished reaction time (RT) performance improvements and increased activation within the motor, somatosensory and lateral occipital cortices. Conclusion: These results show that a single session of LF-rTMS is sufficient to influence metabolite relationships and causes widespread activation in healthy humans. Investigating correlational relationships may provide insight into mechanisms underlying LF-rTMS.
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Affiliation(s)
| | - Richard A McKinley
- Warfighter Interfaces Division, Applied Neuroscience Branch, Wright-Patterson AFB (WPAFB), Dayton, OH, United States
| | - Danielle Boeke
- Warfighter Interfaces Division, Applied Neuroscience Branch, Wright-Patterson AFB (WPAFB), Dayton, OH, United States
| | - Matthew S Sherwood
- Wright State Research Institute, Wright State University, Dayton, OH, United States
| | - Jason G Parker
- Kettering Health Network Innovation Center, Kettering, OH, United States
| | | | | | - Catherine Fletchall
- Grandview Medical Center, Kettering Health Network, Dayton, OH, United States
| | - Natasha Alexander
- Grandview Medical Center, Kettering Health Network, Dayton, OH, United States
| | - Amanda McConnell
- Grandview Medical Center, Kettering Health Network, Dayton, OH, United States
| | | | - Jeremy T Nelson
- Research Imaging Institute, School of Medicine, University of Texas Health Science Center, San Antonio, San Antonio, TX, United States
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12
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The effects of high-frequency rTMS over the left DLPFC on cognitive control in young healthy participants. PLoS One 2017; 12:e0179430. [PMID: 28614399 PMCID: PMC5470713 DOI: 10.1371/journal.pone.0179430] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 05/29/2017] [Indexed: 01/10/2023] Open
Abstract
A large body of evidence suggests that repetitive transcranial magnetic stimulation (rTMS) is clinically effective in treating neuropsychiatric disorders and multiple sessions are commonly used. However, it is unknown whether multiple sessions of rTMS improve cognitive control, which is a function of the neural circuitry of the left dorsolateral prefrontal cortex (DLPFC)-cingulate cortex in healthy individuals. In addition, it is still unclear which stages of neural processing are altered by rTMS. In this study, we investigated the effects of high-frequency rTMS on cognitive control and explored the time course changes of cognitive processing after rTMS using event-related potentials (ERPs). For seven consecutive days, 25 young healthy participants underwent one 10-Hz rTMS session per day in which stimulation was applied over the left DLPFC, and a homogeneous participant group of 25 individuals received a sham rTMS treatment. A Stroop task was performed, and an electroencephalogram (EEG) was recorded. The results revealed that multiple sessions of rTMS can decrease reaction time (RTs) under both congruent and incongruent conditions and also increased the amplitudes of both N2 and N450 compared with sham rTMS. The negative correlations between the mean amplitudes of both N2 and N450 and the RTs were found, however, the latter correlation were restricted to incongruent trials and the correlation was enhanced significantly by rTMS. This observation supports the view that high-frequency rTMS over the left DLPFC can not only recruit more neural resources from the prefrontal cortex by inducing an electrophysiologically excitatory effect but also enhance efficiency of resources to deploy for conflict resolution during multiple stages of cognitive control processing in healthy young people.
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13
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Ni HC, Hung J, Wu CT, Wu YY, Chang CJ, Chen RS, Huang YZ. The Impact of Single Session Intermittent Theta-Burst Stimulation over the Dorsolateral Prefrontal Cortex and Posterior Superior Temporal Sulcus on Adults with Autism Spectrum Disorder. Front Neurosci 2017; 11:255. [PMID: 28536500 PMCID: PMC5423353 DOI: 10.3389/fnins.2017.00255] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/20/2017] [Indexed: 12/19/2022] Open
Abstract
Intermittent theta burst stimulation (iTBS), a patterned repetitive transcranial magnetic stimulation, was applied over the posterior superior temporal sulcus (pSTS) or dorsolateral prefrontal cortex (DLPFC) to explore its impact in adults with autism spectrum disorder (ASD). Among 25 adults with ASD, 19 (mean age: 20.8 years) completed the randomized, sham-controlled, crossover trial. Every participant received iTBS over the bilateral DLPFC, bilateral pSTS and inion (as a sham control stimulation) in a randomized order with a 1-week interval. Neuropsychological functions were assessed using the Conners' Continuous Performance Test (CCPT) and the Wisconsin Card Sorting Test (WCST). Behavioral outcomes were measured using the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) and the Social Responsiveness Scale (SRS). In comparison to that in the sham stimulation, the reaction time in the CCPT significantly decreased following single DLPFC session (p = 0.04, effect size = 0.71) while there were no significant differences in the CCPT and WCST following single pSTS session. Besides, the results in behavioral outcomes were inconsistent and had discrepancy between reports of parents and patients. In conclusion, a single session of iTBS over the bilateral DLPFC may alter the neuropsychological function in adults with ASD. The impacts of multiple-sessions iTBS over the DLPFC or pSTS deserve further investigations.
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Affiliation(s)
- Hsing-Chang Ni
- Department of Psychiatry, Chang Gung Memorial Hospital at LinkouLinkou, Taiwan.,Graduate Institute of Clinical Medicine, National Taiwan University College of MedicineTaipei, Taiwan
| | - June Hung
- Department of Neurology, Neuroscience Research Center, Chang Gung Memorial Hospital at LinkouTaipei, Taiwan
| | - Chen-Te Wu
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at LinkouTaipei, Taiwan
| | - Yu-Yu Wu
- Department of Psychiatry, Chang Gung Memorial Hospital at LinkouLinkou, Taiwan
| | - Chee-Jen Chang
- Graduate Institute of Clinical Medical Science, Chang Gung UniversityTaoyuan, Taiwan.,Clinical Informatics and Medical Statistics Research Center, Chang Gung UniversityTaoyuan, Taiwan.,Research Services Center for Health Information, Chang Gung UniversityTaoyuan, Taiwan
| | - Rou-Shayn Chen
- Department of Neurology, Neuroscience Research Center, Chang Gung Memorial Hospital at LinkouTaipei, Taiwan
| | - Ying-Zu Huang
- Department of Neurology, Neuroscience Research Center, Chang Gung Memorial Hospital at LinkouTaipei, Taiwan.,Medical School, Chang Gung UniversityTaoyuan, Taiwan.,Institute of Cognitive Neuroscience, National Central UniversityTaoyuan, Taiwan
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14
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Brevet-Aeby C, Brunelin J, Iceta S, Padovan C, Poulet E. Prefrontal cortex and impulsivity: Interest of noninvasive brain stimulation. Neurosci Biobehav Rev 2016; 71:112-134. [DOI: 10.1016/j.neubiorev.2016.08.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 08/18/2016] [Accepted: 08/26/2016] [Indexed: 01/21/2023]
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15
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Nitschke K, Köstering L, Finkel L, Weiller C, Kaller CP. A Meta-analysis on the neural basis of planning: Activation likelihood estimation of functional brain imaging results in the Tower of London task. Hum Brain Mapp 2016; 38:396-413. [PMID: 27627877 DOI: 10.1002/hbm.23368] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 08/25/2016] [Accepted: 08/25/2016] [Indexed: 01/02/2023] Open
Abstract
The ability to mentally design and evaluate series of future actions has often been studied in terms of planning abilities, commonly using well-structured laboratory tasks like the Tower of London (ToL). Despite a wealth of studies, findings on the specific localization of planning processes within prefrontal cortex (PFC) and on the hemispheric lateralization are equivocal. Here, we address this issue by integrating evidence from two different sources of data: First, we provide a systematic overview of the existing lesion data on planning in the ToL (10 studies, 211 patients) which does not indicate any evidence for a general lateralization of planning processes in (pre)frontal cortex. Second, we report a quantitative meta-analysis with activation likelihood estimation based on 31 functional neuroimaging datasets on the ToL. Separate meta-analyses of the activation patterns reported for Overall Planning (537 participants) and for Planning Complexity (182 participants) congruently show bilateral contributions of mid-dorsolateral PFC, frontal eye fields, supplementary motor area, precuneus, caudate, anterior insula, and inferior parietal cortex in addition to a left-lateralized involvement of rostrolateral PFC. In contrast to previous attributions of planning-related brain activity to the entire dorsolateral prefrontal cortex (dlPFC) and either its left or right homolog derived from single studies on the ToL, the present meta-analyses stress the pivotal role specifically of the mid-dorsolateral part of PFC (mid-dlPFC), presumably corresponding to Brodmann Areas 46 and 9/46, and strongly argue for a bilateral rather than lateralized involvement of the dlPFC in planning in the ToL. Hum Brain Mapp 38:396-413, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kai Nitschke
- Department of Neurology, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Freiburg Brain Imaging Center University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools Cluster of Excellence University of Freiburg, Freiburg, Germany.,Biological and Personality Psychology, Department of Psychology, University of Freiburg, Freiburg, Germany
| | - Lena Köstering
- Department of Neurology, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Freiburg Brain Imaging Center University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools Cluster of Excellence University of Freiburg, Freiburg, Germany.,Department of Neuroradiology, Medical Center - University of Freiburg, Freiburg, Germany
| | - Lisa Finkel
- Department of Neurology, Medical Center - University of Freiburg, Freiburg, Germany.,Motor Cognition Group, Department of Psychology, University of Konstanz, Konstanz, Germany
| | - Cornelius Weiller
- Department of Neurology, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Freiburg Brain Imaging Center University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools Cluster of Excellence University of Freiburg, Freiburg, Germany
| | - Christoph P Kaller
- Department of Neurology, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Freiburg Brain Imaging Center University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools Cluster of Excellence University of Freiburg, Freiburg, Germany
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16
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Lee YY, Winstein CJ, Fisher BE. Role of the dorsolateral prefrontal cortex in context-dependent motor performance. Eur J Neurosci 2016; 43:954-60. [PMID: 26797866 DOI: 10.1111/ejn.13178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 12/24/2015] [Accepted: 01/12/2016] [Indexed: 11/29/2022]
Abstract
Context-dependent motor performance is a phenomenon in which people perform better in the environmental context where they originally practised a task. Some animal and computer simulation studies have suggested that context-dependent performance may be associated with neural activation of the dorsolateral prefrontal cortex (DLPFC). This study aimed to determine the role of the DLPFC in context-dependent motor performance by perturbing the neural processing of the DLPFC with repetitive transcranial magnetic stimulation (rTMS) in healthy adults. Thirty healthy adults were recruited into the Control, rTMS DLPFC and rTMS Vertex groups. The participants practised three finger sequences associated with a specific incidental context (a coloured circle and a location on the computer screen). One day following practice, the rTMS groups received 1 Hz rTMS prior to the testing conditions in which the sequence-context associations remained the same as practice (SAME) or changed (SWITCH). All three groups improved significantly over practice on day 1. The second day testing results showed that the DLPFC group had a significantly lower decrease in motor performance under the SWITCH condition than the Control and Vertex groups. This finding suggests a specific role of the DLPFC in context-dependent motor performance.
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Affiliation(s)
- Y-Y Lee
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, 90089, USA.,School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - C J Winstein
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, 90089, USA
| | - B E Fisher
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, 90089, USA.,Department of Neurology, Division for Movement Disorders, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
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17
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de Wit SJ, van der Werf YD, Mataix-Cols D, Trujillo JP, van Oppen P, Veltman DJ, van den Heuvel OA. Emotion regulation before and after transcranial magnetic stimulation in obsessive compulsive disorder. Psychol Med 2015; 45:3059-3073. [PMID: 26027740 DOI: 10.1017/s0033291715001026] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Impaired emotion regulation may underlie exaggerated emotional reactivity in patients with obsessive compulsive disorder (OCD), yet instructed emotion regulation has never been studied in the disorder. METHOD This study aimed to assess the neural correlates of emotion processing and regulation in 43 medication-free OCD patients and 38 matched healthy controls, and additionally test if these can be modulated by stimulatory (patients) and inhibitory (controls) repetitive transcranial magnetic stimulation (rTMS) over the left dorsolateral prefrontal cortex (dlPFC). Participants performed an emotion regulation task during functional magnetic resonance imaging before and after a single session of randomly assigned real or sham rTMS. Effect of group and rTMS were assessed on self-reported distress ratings and brain activity in frontal-limbic regions of interest. RESULTS Patients had higher distress ratings than controls during emotion provocation, but similar rates of distress reduction after voluntary emotion regulation. OCD patients compared with controls showed altered amygdala responsiveness during symptom provocation and diminished left dlPFC activity and frontal-amygdala connectivity during emotion regulation. Real v. sham dlPFC stimulation differentially modulated frontal-amygdala connectivity during emotion regulation in OCD patients. CONCLUSIONS We propose that the increased emotional reactivity in OCD may be due to a deficit in emotion regulation caused by a failure of cognitive control exerted by the dorsal frontal cortex. Modulatory rTMS over the left dlPFC may influence automatic emotion regulation capabilities by influencing frontal-limbic connectivity.
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Affiliation(s)
- S J de Wit
- Department of Psychiatry,VU University Medical Center,Amsterdam,The Netherlands
| | | | - D Mataix-Cols
- Department of Clinical Neuroscience,Centre for Psychiatric Research and Education,Karolinska Institutet,Stockholm,Sweden
| | - J P Trujillo
- Department of Psychiatry,VU University Medical Center,Amsterdam,The Netherlands
| | - P van Oppen
- Department of Psychiatry,VU University Medical Center,Amsterdam,The Netherlands
| | - D J Veltman
- Department of Psychiatry,VU University Medical Center,Amsterdam,The Netherlands
| | - O A van den Heuvel
- Department of Psychiatry,VU University Medical Center,Amsterdam,The Netherlands
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18
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Gerrits NJHM, van den Heuvel OA, van der Werf YD. Decreased neural activity and neural connectivity while performing a set-shifting task after inhibiting repetitive transcranial magnetic stimulation on the left dorsal prefrontal cortex. BMC Neurosci 2015. [PMID: 26199083 PMCID: PMC4511070 DOI: 10.1186/s12868-015-0181-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Background Sub-optimal functioning of the dorsal prefrontal cortex (PFC) is associated with executive dysfunction, such as set-shifting deficits, in neurological and psychiatric disorders. We tested this hypothesis by investigating the effect of low-frequency ‘inhibiting’ off-line repetitive transcranial magnetic stimulation (rTMS) on the left dorsal prefrontal cortex on behavioural performance, neural activity, and network connectivity during the performance of a set-shifting paradigm in healthy elderly (mean age 50+). Results Behaviorally, we found a group-by-session interaction for errors on set-shift trials, although post hoc tests did not yield significant findings. In addition, the verum group, when compared with the sham group, displayed reduced task-related activity in the left temporal gyrus, and reduced task-related connectivity of the left PFC with the left postcentral gyrus and posterior insula. Conclusion These results show that low-frequency off-line rTMS on the left dorsal PFC resulted in reduced task-related activity and network connectivity, which was accompanied by a subtle behavioural effect, thereby further corroborating the importance of an optimally functioning PFC in set-shifting.
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Affiliation(s)
- Niels J H M Gerrits
- Department of Anatomy and Neurosciences, VU University Medical Center (VUmc), Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands. .,Neuroscience Campus Amsterdam (NCA), Amsterdam, The Netherlands.
| | - Odile A van den Heuvel
- Department of Anatomy and Neurosciences, VU University Medical Center (VUmc), Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.,Department of Psychiatry, VUmc, Amsterdam, The Netherlands.,Neuroscience Campus Amsterdam (NCA), Amsterdam, The Netherlands
| | - Ysbrand D van der Werf
- Department of Anatomy and Neurosciences, VU University Medical Center (VUmc), Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.,Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands.,Neuroscience Campus Amsterdam (NCA), Amsterdam, The Netherlands
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19
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Fallon SJ, Hampshire A, Williams-Gray CH, Barker RA, Owen AM. Putative cortical dopamine levels affect cortical recruitment during planning. Neuropsychologia 2013; 51:2194-201. [PMID: 23911779 PMCID: PMC3808120 DOI: 10.1016/j.neuropsychologia.2013.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/22/2013] [Accepted: 07/24/2013] [Indexed: 12/14/2022]
Abstract
Planning, the decomposition of an ultimate goal into a number of sub-goals is critically dependent upon fronto-striatal dopamine (DA) levels. Here, we examined the extent to which the val158met polymorphism in the catechol O-methyltransferase (COMT) gene, which is thought to primarily alter cortical DA levels, affects performance and fronto-parietal activity during a planning task (Tower of London). COMT genotype was found to modulate activity in the left superior posterior parietal cortex (SPC) during planning, relative to subtracting, trials. Specifically, left SPC blood oxygenation level-dependent (BOLD) response was reduced in groups with putatively low or high cortical DA levels (COMT homozygotes) relative to those with intermediate cortical DA levels (COMT heterozygotes). These set of results are argued to occur either due to differences in neuronal processing in planning (and perhaps subtracting) caused by the COMT genotype and/or the cognitively heterogeneous nature of the TOL, which allows different cognitive strategies to be used whilst producing indistinguishable behavioural performance in healthy adults. The implications of this result for our understanding of COMT's effect on cognition in health and disease are discussed.
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Affiliation(s)
- S J Fallon
- Medical Research Council Cognition and Brain Sciences Unit, Cambridge, CB2 7EF, United Kingdom; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands.
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20
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Fautrelle L, Gueugnon M, Barbieri G, Bonnetblanc F. Inter-hemispheric remapping between arm proprioception and vision of the hand is disrupted by single pulse TMS on the left parietal cortex. Brain Cogn 2013; 82:146-51. [DOI: 10.1016/j.bandc.2013.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 02/22/2013] [Accepted: 03/19/2013] [Indexed: 10/26/2022]
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