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Tang C, Huang T, Huang J, Xu N, Lyu H, Wang Y, Cao Y. Effortful and effortless training of executive functions improve brain multiple demand system activities differently: an activation likelihood estimation meta-analysis of functional neuroimaging studies. Front Neurosci 2023; 17:1243409. [PMID: 38033550 PMCID: PMC10682784 DOI: 10.3389/fnins.2023.1243409] [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: 06/20/2023] [Accepted: 10/18/2023] [Indexed: 12/02/2023] Open
Abstract
Both effortful and effortless training have been shown to be effective in enhancing individuals' executive functions. Effortful training improves domain-specific EFs, while effortless training improves domain-general EFs. Furthermore, effortful training has significantly higher training effects on EFs than effortless training. The neural mechanism underlying these different effects remained unclear. The present study conducted meta-analysis on neuroimaging studies to explore the changes of brain activations induced by effortful and effortless training. The results showed that effortful training induced greater activation in superior frontal gyrus, while effortless training induced greater activation in middle frontal gyrus, precuneus and cuneus. The brain regions of MD system enhanced by effortful training were more associated with core cognitive functions underlying EFs, while those enhanced by effortless training were more correlated with language functions. In addition, the significant clusters induced by effortful training had more overlaps with the MD system than effortless training. These results provided us with possibility to discuss the different behavioral results brought by effortful and effortless training.
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Affiliation(s)
- Chan Tang
- School of Psychology, Northeast Normal University, Changchun, China
- School of Psychology, Jilin Provincial Key Laboratory of Cognitive Neuroscience and Brain Development, Northeast Normal University, Changchun, China
- State Key Laboratory for Cognitive Neuroscience and Learning, Faculty of Psychology, Beijing Normal University, Beijing, China
| | - Ting Huang
- School of Psychology, Northeast Normal University, Changchun, China
- School of Humanities and Social Sciences, Beijing Institute of Technology, Beijing, China
| | - Jipeng Huang
- School of Psychology, Northeast Normal University, Changchun, China
- State Key Laboratory for Cognitive Neuroscience and Learning, Faculty of Psychology, Beijing Normal University, Beijing, China
| | - Nuo Xu
- School of Psychology, Northeast Normal University, Changchun, China
| | - Hui Lyu
- School of Psychology, Northeast Normal University, Changchun, China
| | - Yuan Wang
- School of Psychology, Northeast Normal University, Changchun, China
- School of Psychology, Jilin Provincial Key Laboratory of Cognitive Neuroscience and Brain Development, Northeast Normal University, Changchun, China
| | - Yifei Cao
- School of Psychology, Northeast Normal University, Changchun, China
- School of Psychology, Jilin Provincial Key Laboratory of Cognitive Neuroscience and Brain Development, Northeast Normal University, Changchun, China
- State Key Laboratory for Cognitive Neuroscience and Learning, Faculty of Psychology, Beijing Normal University, Beijing, China
- Zurich Center for Neuroscience, University of Zurich and ETH Zurich, Zurich, Switzerland
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2
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Cheng B, Xu H, Zhou H, Guo Y, Roberts N, Li N, Hu X, Chen X, Xu K, Lan Y, Ma X, Cai X, Guo Y. Connectomic disturbances in Duchenne muscular dystrophy with mild cognitive impairment. Cereb Cortex 2023:6982730. [PMID: 36627244 DOI: 10.1093/cercor/bhac542] [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: 10/30/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/12/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is frequently associated with mild cognitive deficits. However, the underlying disrupted brain connectome and the neural basis remain unclear. In our current study, 38 first-episode, treatment-naive patients with DMD and 22 matched healthy controls (HC) were enrolled and received resting-sate functional magnetic resonance imaging scans. Voxel-based degree centrality (DC), seed-based functional connectivity (FC), and clinical correlation were performed. Relative to HC, DMD patients had lower height, full Intellectual Quotients (IQ), and IQ-verbal comprehension. Significant increment of DC of DMD patients were found in the left dorsolateral prefrontal cortex (DLPFC.L) and right dorsomedial prefrontal cortex (DMPFC.R), while decreased DC were found in right cerebellum posterior lobe (CPL.R), right precentral/postcentral gyrus (Pre/Postcentral G.R). DMD patients had stronger FC in CPL.R-bilateral lingual gyrus, Pre/Postcentral G.R-Insular, and DMPFC.R-Precuneus.R, had attenuated FC in DLPFC.L-Insular. These abnormally functional couplings were closely associated with the extent of cognitive impairment, suggested an over-activation of default mode network and executive control network, and a suppression of primary sensorimotor cortex and cerebellum-visual circuit. The findings collectively suggest the distributed brain connectome disturbances maybe a neuroimaging biomarker in DMD patients with mild cognitive impairment.
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Affiliation(s)
- Bochao Cheng
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China.,Department of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Guoxue Street, Wuhou District, Chengdu, 610041, China
| | - Huayan Xu
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Hui Zhou
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Yi Guo
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China.,Department of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Guoxue Street, Wuhou District, Chengdu, 610041, China
| | - Neil Roberts
- Edinburgh Imaging Facility, School of Clinical Sciences, The Queen's Medical Research Institute (QMRI), University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom
| | - Na Li
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Xiao Hu
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Xijian Chen
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Ke Xu
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Yu Lan
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Xuejing Ma
- Department of Radiology, The First People's Hospital of Zunyi, Zunyi Medical University, Fenghuang Road, Huichuan District, Zunyi, 563099, China
| | - Xiaotang Cai
- Department of Rehabilitation Medicine, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China
| | - Yingkun Guo
- Department of Radiology, West China Second University Hospital, Sichuan University, South Renmin Road, Wuhou District, Chengdu, 610041, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, South Renmin Road, Wuhou District, Chengdu, 610041, China
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3
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Zhao W, Zhang Q, Su Y, Chen X, Li X, Du B, Deng X, Ji F, Li J, Dong Q, Chen C, Li J. Effect of schizophrenia risk gene polymorphisms on cognitive and neural plasticity. Schizophr Res 2022; 248:173-179. [PMID: 36075127 DOI: 10.1016/j.schres.2022.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 07/13/2022] [Accepted: 08/20/2022] [Indexed: 11/24/2022]
Abstract
A recent Chinese genome-wide association study found evidence for 58 out of the 128 schizophrenia-associated variants previously discovered in Western samples by the Schizophrenia Working Group of the Psychiatric Genomics Consortium (PGC). However, the functional impact of these trans-ancestry genome-wide single-nucleotide polymorphisms (SNPs) is not clear. In the current study, we examined the roles of trans-ancestry SNPs in cognitive and neural plasticity. We first performed a behavioral study of 547 healthy volunteers, who received month-long working memory training, and working memory capability assessment both before and after the training. A separate sample of 101 subjects received the same training and received fMRI scans during a working memory task, both before and after the training. The behavioral study found a significant association between the polygenic risk score (PRS) and behavioral plasticity, with higher schizophrenia risk scores being linked to less plasticity. At the SNP level, rs36068923 showed a significant signal, with the risk allele being associated with less plasticity. The fMRI study further found that the PRS and rs36068923 polymorphism were associated with training-induced changes in striatal activation, with higher PRS and the risk allele of rs36068923 being linked to less brain plasticity. In sum, this study found that a high genetic risk for schizophrenia was associated with less plasticity at both behavioral and neural levels. These results provide new insights into the neural and cognitive mechanisms linking genes to schizophrenia.
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Affiliation(s)
- Wan Zhao
- School of Psychology, Nanjing Normal University, Nanjing 210097, Jiangsu, PR China
| | - Qiumei Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China; School of Public Health, Jining Medical University, Jining 272013, Shandong, PR China
| | - Yanyan Su
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China
| | - Xiongying Chen
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & the Advanced Innovation Center for Human Brain Protection, Beijing Anding Hospital, School of Mental Health, Capital Medical University, Beijing 100088, PR China
| | - Xiaohong Li
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & the Advanced Innovation Center for Human Brain Protection, Beijing Anding Hospital, School of Mental Health, Capital Medical University, Beijing 100088, PR China
| | - Boqi Du
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China
| | - Xiaoxiang Deng
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China
| | - Feng Ji
- School of Mental Health, Jining Medical University, Jining 272013, Shandong, PR China
| | - Jin Li
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, 95 East Zhongguancun Road, Beijing 100190, PR China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, 95 East Zhongguancun Road, Beijing 100190, PR China
| | - Qi Dong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China
| | - Chuansheng Chen
- Department of Psychological Science, University of California, Irvine, CA 92697, United States
| | - Jun Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, PR China.
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4
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Jones JS, Adlam ALR, Benattayallah A, Milton FN. The neural correlates of working memory training in typically developing children. Child Dev 2022; 93:815-830. [PMID: 34897651 DOI: 10.1111/cdev.13721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Working memory training improves children's cognitive performance on untrained tasks; however, little is known about the underlying neural mechanisms. This was investigated in 32 typically developing children aged 10-14 years (19 girls and 13 boys) using a randomized controlled design and multi-modal magnetic resonance imaging (Devon, UK; 2015-2016). Training improved working memory performance and increased intrinsic functional connectivity between the bilateral intraparietal sulci. Furthermore, improvements in working memory were associated with greater recruitment of the left middle frontal gyrus on a complex span task. Repeated engagement of fronto-parietal regions during training may increase their activity and functional connectivity over time, affording greater working memory performance. The plausibility of generalizable cognitive benefits from a neurobiological perspective and implications for neurodevelopmental theory are discussed.
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Affiliation(s)
- Jonathan S Jones
- School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter, UK.,MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
| | - Anna-Lynne R Adlam
- School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Abdelmalek Benattayallah
- School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter, UK.,School of Medicine, University of Plymouth, Plymouth, UK
| | - Fraser N Milton
- School of Psychology, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
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5
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Vartanian O, Replete V, Saint SA, Lam Q, Forbes S, Beaudoin ME, Brunyé TT, Bryant DJ, Feltman KA, Heaton KJ, McKinley RA, Van Erp JBF, Vergin A, Whittaker A. What Is Targeted When We Train Working Memory? Evidence From a Meta-Analysis of the Neural Correlates of Working Memory Training Using Activation Likelihood Estimation. Front Psychol 2022; 13:868001. [PMID: 35432071 PMCID: PMC9005969 DOI: 10.3389/fpsyg.2022.868001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/14/2022] [Indexed: 11/23/2022] Open
Abstract
Working memory (WM) is the system responsible for maintaining and manipulating information, in the face of ongoing distraction. In turn, WM span is perceived to be an individual-differences construct reflecting the limited capacity of this system. Recently, however, there has been some evidence to suggest that WM capacity can increase through training, raising the possibility that training can functionally alter the neural structures supporting WM. To address the hypothesis that the neural substrates underlying WM are targeted by training, we conducted a meta-analysis of functional magnetic resonance imaging (fMRI) studies of WM training using Activation Likelihood Estimation (ALE). Our results demonstrate that WM training is associated exclusively with decreases in blood oxygenation level-dependent (BOLD) responses in clusters within the fronto-parietal system that underlie WM, including the bilateral inferior parietal lobule (BA 39/40), middle (BA 9) and superior (BA 6) frontal gyri, and medial frontal gyrus bordering on the cingulate gyrus (BA 8/32). We discuss the various psychological and physiological mechanisms that could be responsible for the observed reductions in the BOLD signal in relation to WM training, and consider their implications for the construct of WM span as a limited resource.
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Affiliation(s)
- Oshin Vartanian
- Defence Research and Development Canada, Toronto, ON, Canada
- Department of Psychology, University of Toronto, Toronto, ON, Canada
| | - Vladyslava Replete
- Defence Research and Development Canada, Toronto, ON, Canada
- Faculty of Medicine, Queen’s University, Kingston, ON, Canada
| | - Sidney Ann Saint
- Defence Research and Development Canada, Toronto, ON, Canada
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
| | - Quan Lam
- Defence Research and Development Canada, Toronto, ON, Canada
| | - Sarah Forbes
- Defence Research and Development Canada, Toronto, ON, Canada
- Department of Psychiatry, University of Manitoba, Winnipeg, MB, Canada
| | - Monique E. Beaudoin
- Applied Research Laboratory for Intelligence and Security, University of Maryland, College Park, MD, United States
| | - Tad T. Brunyé
- U.S. Army DEVCOM Soldier Center, Natick, MA, United States
| | - David J. Bryant
- Defence Research and Development Canada, Toronto, ON, Canada
| | - Kathryn A. Feltman
- U.S. Army Aeromedical Research Laboratory, Fort Rucker, AL, United States
| | - Kristin J. Heaton
- U.S. Army Research Institute of Environmental Medicine, Natick, MA, United States
| | - Richard A. McKinley
- U.S. Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH, United States
| | - Jan B. F. Van Erp
- Netherlands Organization for Applied Scientific Research (TNO), Soesterberg, Netherlands
- Department of Human Media Interaction, University of Twente, Enschede, Netherlands
| | - Annika Vergin
- Bundeswehr Office for Defence Planning, Federal Ministry of Defence, Berlin, Germany
| | - Annalise Whittaker
- Defence Science and Technology Laboratory, UK Ministry of Defence, Salisbury, United Kingdom
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6
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Zhao W, Zhang Q, Chen X, Li Y, Li X, Du B, Deng X, Ji F, Wang C, Xiang YT, Dong Q, Chen C, Li J. The VNTR of the AS3MT gene is associated with brain activations during a memory span task and their training-induced plasticity. Psychol Med 2021; 51:1927-1932. [PMID: 32308175 PMCID: PMC8381288 DOI: 10.1017/s0033291720000720] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 01/10/2020] [Accepted: 03/11/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND The Arsenic (+3 oxidation state) methyltransferase (AS3MT) gene has been identified as a top risk gene for schizophrenia in several large-scale genome-wide association studies. A variable number tandem repeat (VNTR) of this gene is the most significant expression quantitative trait locus, but its role in brain activity in vivo is still unknown. METHODS We first performed a functional magnetic resonance imaging (fMRI) scan of 101 healthy subjects during a memory span task, trained all subjects on an adaptive memory span task for 1 month, and finally performed another fMRI scan after the training. After excluding subjects with excessive head movements for one or more scanning sessions, data from 93 subjects were included in the final analyses. RESULTS The VNTR was significantly associated with both baseline brain activation and training-induced changes in multiple regions including the prefrontal cortex and the anterior and posterior cingulate cortex. Additionally, it was associated with baseline brain activation in the striatum and the parietal cortex. All these results were corrected based on the family-wise error rate method across the whole brain at the peak level. CONCLUSIONS This study sheds light on the role of AS3MT gene variants in neural plasticity related to memory span training.
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Affiliation(s)
- Wan Zhao
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
| | - Qiumei Zhang
- School of Public Health, Jining Medical University, 45# Jianshe South Road, Jining272013, Shandong Province, P.R. China
| | - Xiongying Chen
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & the Advanced Innovation Center for Human Brain Protection, Beijing Anding Hospital, School of Mental Health, Capital Medical University, Beijing100088, China
| | - Yang Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
| | - Xiaohong Li
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & the Advanced Innovation Center for Human Brain Protection, Beijing Anding Hospital, School of Mental Health, Capital Medical University, Beijing100088, China
| | - Boqi Du
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
| | - Xiaoxiang Deng
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
| | - Feng Ji
- School of Mental Health, Jining Medical University, 45# Jianshe South Road, Jining272013, Shandong Province, P.R. China
| | - Chuanyue Wang
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & the Advanced Innovation Center for Human Brain Protection, Beijing Anding Hospital, School of Mental Health, Capital Medical University, Beijing100088, China
| | - Yu-Tao Xiang
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau
| | - Qi Dong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
| | - Chuansheng Chen
- Department of Psychology and Social Behavior, University of California, Irvine, CA92697, USA
| | - Jun Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, P.R. China
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7
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Liao YY, Chen IH, Hsu WC, Tseng HY, Wang RY. Effect of exergaming versus combined exercise on cognitive function and brain activation in frail older adults: A randomised controlled trial. Ann Phys Rehabil Med 2021; 64:101492. [PMID: 33454398 DOI: 10.1016/j.rehab.2021.101492] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 12/08/2020] [Accepted: 12/17/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cognitive impairment is prevalent among frail older adults. Traditional exercise and exergaming positively affect cognition in healthy older people. However, few studies have investigated the effects of exergaming on cognition and brain activation in frail older adults. OBJECTIVE This study compared the effect of Kinect based exergaming (EXER) and combined physical exercise (CPE) training on cognitive function and brain activation in frail older adults in Taiwan. We hypothesised that EXER would be superior to CPE in this population. METHODS We randomised 46 community-dwelling frail older adults to the EXER or CPE group for 36 sessions (three 60-min training sessions per week) over 12 weeks. Outcome measures for cognitive function included global cognition measured by the Montreal Cognitive Assessment, executive function measured by the Executive Interview 25, verbal memory measured by the Chinese version of the California Verbal Learning Test, attention measured by the Stroop Colour and Word Test and Trail Making Test (part B), and working memory measured by spatial n-back tests. Prefrontal cortex activation during the global cognition test was documented with functional near-infrared spectroscopy (fNIRS). RESULTS Both groups improved significantly in global cognition (P<0.05), executive function (P<0.05), and attention (P<0.05) after the 12-week intervention. The group×time interaction indicated that EXER training significantly enhanced global cognition more than CPE training (F(1,44)=5.277, P=0.026). Moreover, only the EXER group showed significant improvements in verbal (P<0.05) and working (P<0.05) memory after the intervention. The fNIRS hemodynamics data revealed decreased activation in prefrontal cortices of both groups (P<0.05) during the post-training cognitive assessment, thereby suggesting greater neural efficiency; however, we found no significant group difference. CONCLUSION In frail older adults, exergaming and CPE could improve cognitive function, most likely by increasing neural efficiency. Moreover, exergaming may be superior to CPE, particularly in improving global cognition.
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Affiliation(s)
- Ying-Yi Liao
- Department of gerontological health care, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - I-Hsuan Chen
- Department of physical therapy, Fooyin University, Kaohsiung, Taiwan
| | - Wei-Chun Hsu
- Graduate Institute of biomedical engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Han-Yun Tseng
- Department of gerontological health care, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Ray-Yau Wang
- Department of physical therapy and assistive technology, National Yang-Ming University, Taipei, Taiwan.
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8
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Salmi J, Soveri A, Salmela V, Alho K, Leppämäki S, Tani P, Koski A, Jaeggi SM, Laine M. Working memory training restores aberrant brain activity in adult attention-deficit hyperactivity disorder. Hum Brain Mapp 2020; 41:4876-4891. [PMID: 32813290 PMCID: PMC7643386 DOI: 10.1002/hbm.25164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/25/2020] [Accepted: 07/29/2020] [Indexed: 01/01/2023] Open
Abstract
The development of treatments for attention impairments is hampered by limited knowledge about the malleability of underlying neural functions. We conducted the first randomized controlled trial to determine the modulations of brain activity associated with working memory (WM) training in adults with attention-deficit hyperactivity disorder (ADHD). At baseline, we assessed the aberrant functional brain activity in the n-back WM task by comparing 44 adults with ADHD with 18 healthy controls using fMRI. Participants with ADHD were then randomized to train on an adaptive dual n-back task or an active control task. We tested whether WM training elicits redistribution of brain activity as observed in healthy controls, and whether it might further restore aberrant activity related to ADHD. As expected, activity in areas of the default-mode (DMN), salience (SN), sensory-motor (SMN), frontoparietal (FPN), and subcortical (SCN) networks was decreased in participants with ADHD at pretest as compared with healthy controls, especially when the cognitive load was high. WM training modulated widespread FPN and SN areas, restoring some of the aberrant activity. Training effects were mainly observed as decreased brain activity during the trained task and increased activity during the untrained task, suggesting different neural mechanisms for trained and transfer tasks.
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Affiliation(s)
- Juha Salmi
- Department of Neuroscience and Biomedical EngineeringAalto UniversityEspooFinland
- Department of Psychology and Speech‐Language PathologyUniversity of TurkuTurkuFinland
- Turku Institute for Advanced StudiesUniversity of TurkuTurkuFinland
| | - Anna Soveri
- Department of Clinical MedicineUniversity of TurkuTurkuFinland
| | - Viljami Salmela
- Department of Psychology and LogopedicsUniversity of HelsinkiHelsinkiFinland
- AMI Centre, Aalto NeuroimagingAalto UniversityEspooFinland
| | - Kimmo Alho
- Department of Psychology and LogopedicsUniversity of HelsinkiHelsinkiFinland
- AMI Centre, Aalto NeuroimagingAalto UniversityEspooFinland
| | - Sami Leppämäki
- Department of PsychiatryHelsinki University HospitalHelsinkiFinland
| | - Pekka Tani
- Department of PsychiatryHelsinki University HospitalHelsinkiFinland
| | - Anniina Koski
- Department of PsychiatryHelsinki University HospitalHelsinkiFinland
| | - Susanne M. Jaeggi
- School of EducationUniversity of California IrvineIrvineCaliforniaUSA
- Department of Cognitive SciencesUniversity of California IrvineIrvineCaliforniaUSA
| | - Matti Laine
- Department of PsychologyÅbo Akademi UniversityTurkuFinland
- Brain and Mind CenterUniversity of TurkuTurkuFinland
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9
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Arsalidou M, Yaple Z, Jurcik T, Ushakov V. Cognitive Brain Signatures of Youth With Early Onset and Relatives With Schizophrenia: Evidence From fMRI Meta-analyses. Schizophr Bull 2020; 46:857-868. [PMID: 31978222 PMCID: PMC7345811 DOI: 10.1093/schbul/sbz130] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Deficits in cognitive function are a major characteristic of schizophrenia. Many functional magnetic resonance imaging (fMRI) studies examine brain correlates of cognitive function in adults with schizophrenia, showing altered implication of associative areas such as the prefrontal cortex and temporal cortex. fMRI studies also examine brain representation of cognitive function in adolescents with early onset schizophrenia and those at risk of the disorder, yet results are often inconsistent. We compile and analyze data from eligible fMRI studies using quantitative meta-analyses to reveal concordant brain activity associated with adolescent relatives of patients with schizophrenia and those with early onset schizophrenia. Results show similar functional hubs of brain activity (eg, precuneus) yet in opposite hemispheres and clusters in ventrolateral rather than dorsolateral prefrontal cortices. Other areas of altered implication include the middle temporal gyrus, insula, and cerebellum. We discuss the findings in reference to the protracted maturation of the prefrontal cortex and possible effects due to the medication status of the two groups.
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Affiliation(s)
- Marie Arsalidou
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation,Department of Psychology, Faculty of Health, York University, Toronto, ON, Canada,To whom correspondence should be addressed; Armyanskiy per. 4, c2, Moscow, 101000, room 406; tel: 1786-505-9779, e-mail: ; ;
| | - Zachary Yaple
- Department of Psychology, National University of Singapore, Singapore
| | - Tomas Jurcik
- Department of Psychology, National Research University Higher School of Economics, Moscow, Russian Federation
| | - Vadim Ushakov
- Kurchatov Department of NBICS-nature-like technologies, National Research Centre Kurchatov Institute, Moscow, Russian Federation,Department of Cybernetics, National Research Nuclear University “MEPhI”, Moscow, Russian Federation
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10
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Neurophysiological indices of the transfer of cognitive training gains to untrained tasks. Neurobiol Learn Mem 2020; 171:107205. [PMID: 32145406 DOI: 10.1016/j.nlm.2020.107205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 02/11/2020] [Accepted: 03/02/2020] [Indexed: 11/20/2022]
Abstract
Targeted training of working memory (WM) may improve performance and modulate brain function in untrained cognitive modalities. Demanding cognitive training protocols that do not target WM may also improve performance on untrained cognitive tests, but the delineation between transfer effects that are unique to WM training and effects that are shared among different cognitive training modalities has not been well-established. To address this, we examined the effects of twenty sessions of either WM training (visual n-back task with letter stimuli) or selective attention training (visual search task with letter array stimuli) on brain function during untrained WM and cognitive control tasks. Event-related potentials (ERPs) were obtained at baseline (pretest) and after the training period (posttest) for two untrained tasks - a Spatial 3-back task measuring spatial WM, and a Go/NoGo Flanker task measuring cognitive control. The n-back training group had more pronounced pretest-to-posttest performance improvements on the Spatial 3-back task compared to the search training group. N-back training was also associated with pretest-to-posttest enhancement of N1 amplitude and reduced N2 latency on trials of the task in which where there was a stimulus match, as well as enhancement of a late positive potential (550-750 msec post-stimulus) for all trials of the task. These ERP effects suggest that n-back training resulted in enhancement of attention to spatial locations, earlier onset of conflict monitoring processes, and changes in the engagement of neural activity during the retention interval, respectively. Both groups had faster reaction time on Go trials of the Go/NoGo Flanker task at posttest compared to pretest. Relatively subtle training-related effects were observed for N2 amplitude on this task, in line with the notion that training (particularly n-back training) was associated with improved conflict monitoring. Further, search training resulted in earlier onset of P2 and P3 latency at posttest compared to pretest. Taken together, the ERP findings for both tasks identify specific cognitive processes that are associated with transfer to untrained tasks after distinct forms of cognitive training.
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11
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Guerin AA, Bonomo Y, Lawrence AJ, Baune BT, Nestler EJ, Rossell SL, Kim JH. Cognition and Related Neural Findings on Methamphetamine Use Disorder: Insights and Treatment Implications From Schizophrenia Research. Front Psychiatry 2019; 10:880. [PMID: 31920743 PMCID: PMC6928591 DOI: 10.3389/fpsyt.2019.00880] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022] Open
Abstract
Despite the prevalence of methamphetamine (meth) use disorder, research on meth is disproportionately scarce compared to research on other illicit drugs. Existing evidence highlights cognitive deficits as an impediment against daily function and treatment of chronic meth use. Similar deficits are also observed in schizophrenia, and this review therefore draws on schizophrenia research by examining similarities and differences between the two disorders on cognition and related neural findings. While meth use disorder and schizophrenia are two distinct disorders, they are highly co-morbid and share impairments in similar cognitive domains and altered brain structure/function. This narrative review specifically identifies overlapping features such as deficits in learning and memory, social cognition, working memory and inhibitory/impulse control. We report that while working memory deficits are a core feature of schizophrenia, such deficits are inconsistently observed following chronic meth use. Similar structural and functional abnormalities are also observed in cortical and limbic regions between the two disorders, except for cingulate activity where differences are observed. There is growing evidence that targeting cognitive symptoms may improve functional outcome in schizophrenia, with evidence of normalized abnormal brain activity in regions associated with cognition. Considering the overlap between meth use disorder and schizophrenia, targeting cognitive symptoms in people with meth use disorder may also improve treatment outcome and daily function.
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Affiliation(s)
- Alexandre A. Guerin
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Yvonne Bonomo
- Department of Addiction Medicine, St Vincent’s Hospital, Melbourne, VIC, Australia
- Department of Medicine, University of Melbourne, Melbourne, VIC, Australia
- Women’s Alcohol and Drug Service, Royal Women’s Hospital, Melbourne, VIC, Australia
| | - Andrew John Lawrence
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | | | - Eric J. Nestler
- Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Susan L. Rossell
- Centre for Mental Health, Swinburne University of Technology, Melbourne, VIC, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, VIC, Australia
| | - Jee Hyun Kim
- Mental Health Theme, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
- Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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12
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Li X, Chu MY, Lv QY, Hu HX, Li Z, Yi ZH, Wang JH, Zhang JY, Lui SSY, Cheung EFC, Shum DHK, Chan RCK. The remediation effects of working memory training in schizophrenia patients with prominent negative symptoms. Cogn Neuropsychiatry 2019; 24:434-453. [PMID: 31583951 DOI: 10.1080/13546805.2019.1674644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction: Negative symptoms, particularly amotivation and anhedonia, are important predictors of poor functional outcome in patients with schizophrenia. There has been interest in the efficacy and mechanism of non-pharmacological interventions to alleviate these symptoms. The present study aimed to examine the remediation effect of working memory (WM) training in patients with schizophrenia with prominent negative symptoms.Methods: Thirty-one schizophrenia patients with prominent negative symptoms were recruited and assigned to either a WM training group or a treatment-as-usual (TAU) control group. The WM training group underwent 20 sessions of training using the dual n-back task over one month. A functional neuroimaging paradigm of the Affective Incentive Delay (AID) task was administered before and after the training intervention to evaluate the remediation effect of the intervention.Results: Our results showed that the WM training group demonstrated significant improvement in the WM training task and inattention symptoms. Compared with the TAU group, increased brain activations were observed at the right insula and the right frontal sub-gyral after WM training in the training group.Conclusions: These findings support the efficacy of WM training in ameliorating hedonic dysfunction in schizophrenia patients with prominent negative symptoms.
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Affiliation(s)
- Xu Li
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Key Laboratory of Adolescent Cyberpsychology and Behavior(CCNU), Ministry of Education, School of Psychology, Central China Normal University, Wuhan, People's Republic of China
| | - Min-Yi Chu
- Translational Neuropsychology and Applied Cognitive Neuroscience Laboratory, Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Qin-Yu Lv
- Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Hui-Xin Hu
- Translational Neuropsychology and Applied Cognitive Neuroscience Laboratory, Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Zhi Li
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Zheng-Hui Yi
- Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jin-Hong Wang
- MRI Center, Shanghai Mental Health Centre, Shanghai, People's Republic of China
| | - Jian-Ye Zhang
- MRI Center, Shanghai Mental Health Centre, Shanghai, People's Republic of China
| | - Simon S Y Lui
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Castle Peak Hospital, Hong Kong Special Administration Region, People's Republic of China
| | - Eric F C Cheung
- Castle Peak Hospital, Hong Kong Special Administration Region, People's Republic of China
| | - David H K Shum
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Menzies Health Institute Queensland and School of Applied Psychology, Griffith University, Gold Coast, Australia.,Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hong Kong, People's Republic of China
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, People's Republic of China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Translational Neuropsychology and Applied Cognitive Neuroscience Laboratory, Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.,Menzies Health Institute Queensland and School of Applied Psychology, Griffith University, Gold Coast, Australia
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13
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Horvath G, Liszli P, Kekesi G, Büki A, Benedek G. Cognitive training improves the disturbed behavioral architecture of schizophrenia-like rats, “Wisket”. Physiol Behav 2019; 201:70-82. [DOI: 10.1016/j.physbeh.2018.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/26/2018] [Accepted: 12/10/2018] [Indexed: 01/17/2023]
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14
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Zhang Y, Wang H, Yan C, Wang L, Cheung EFC, Chan RC. Working memory training can improve anhedonia in college students with subsyndromal depressive symptoms. Psych J 2019; 8:401-410. [DOI: 10.1002/pchj.271] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yi‐Jing Zhang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of PsychologyChinese Academy of Sciences Beijing China
- Department of PsychologyUniversity of Chinese Academy of Sciences Beijing China
| | - Hao‐Yu Wang
- School of Psychological and Cognitive SciencesPeking University Beijing China
| | - Chao Yan
- School of Psychology and Cognitive ScienceEast China Normal University Shanghai China
- Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics (MOE & STCSM)East China Normal University Shanghai China
| | - Ling‐Ling Wang
- School of Psychology and Cognitive ScienceEast China Normal University Shanghai China
| | | | - Raymond C.K. Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of PsychologyChinese Academy of Sciences Beijing China
- Department of PsychologyUniversity of Chinese Academy of Sciences Beijing China
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15
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Schwippel T, Papazova I, Strube W, Fallgatter AJ, Hasan A, Plewnia C. Beneficial effects of anodal transcranial direct current stimulation (tDCS) on spatial working memory in patients with schizophrenia. Eur Neuropsychopharmacol 2018; 28:1339-1350. [PMID: 30292415 DOI: 10.1016/j.euroneuro.2018.09.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 03/23/2018] [Accepted: 09/21/2018] [Indexed: 12/19/2022]
Abstract
Schizophrenia is a severe and often detrimental psychiatric disorder. The individual patients' level of functioning is essentially determined by cognitive, particularly working memory (WM), deficits that are critically linked to dysfunctional activity of the dorsolateral prefrontal cortex (dlPFC). Transcranial direct current stimulation (tDCS) can transiently modulate activity of the dlPFC and remote areas and has been shown to improve WM functions. It may therefore provide a new, targeted treatment option. For this aim, the present study investigated the effect of anodal tDCS of different intensities on spatial WM in patients with schizophrenia. In two experiments, 32 patients performed a spatial n-back task with increasing WM load (1-, 2-, and 3-back) at baseline and in two sessions with anodal or sham tDCS (EXP I [n = 16]: 1 mA; EXP II [n = 16]: 2 mA) to the right dlPFC (cathode: left m. deltoideus). With 1 mA anodal tDCS, no effect on WM performance could be detected. However, 2 mA anodal tDCS increased accuracy (measured by d') of the task with the highest WM load (3-back). This effect was larger in patients with a lower level of general neurocognitive functioning. These results demonstrate a beneficial effect of 2 mA anodal tDCS on deficient WM accuracy in patients with schizophrenia particularly under challenging conditions and in subjects with higher cognitive impairments. This data will inform future clinical trials on tDCS-enhanced cognitive training to improve treatment of schizophrenia.
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Affiliation(s)
- T Schwippel
- Department of Psychiatry and Psychotherapy, Neurophysiology & Interventional Neuropsychiatry, University of Tübingen, Calwerstrasse 14, 72076 Tübingen, Germany
| | - I Papazova
- Department of Psychiatry and Psychotherapy, Klinikum der Universität München, Ludwig-Maximilians University Munich, Nußbaumstraße 7, 80336 Munich, Germany
| | - W Strube
- Department of Psychiatry and Psychotherapy, Klinikum der Universität München, Ludwig-Maximilians University Munich, Nußbaumstraße 7, 80336 Munich, Germany
| | - A J Fallgatter
- Department of Psychiatry and Psychotherapy, Neurophysiology & Interventional Neuropsychiatry, University of Tübingen, Calwerstrasse 14, 72076 Tübingen, Germany
| | - A Hasan
- Department of Psychiatry and Psychotherapy, Klinikum der Universität München, Ludwig-Maximilians University Munich, Nußbaumstraße 7, 80336 Munich, Germany
| | - C Plewnia
- Department of Psychiatry and Psychotherapy, Neurophysiology & Interventional Neuropsychiatry, University of Tübingen, Calwerstrasse 14, 72076 Tübingen, Germany.
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16
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Donohoe G, Dillon R, Hargreaves A, Mothersill O, Castorina M, Furey E, Fagan AJ, Meaney JF, Fitzmaurice B, Hallahan B, McDonald C, Wykes T, Corvin A, Robertson IH. Effectiveness of a low support, remotely accessible, cognitive remediation training programme for chronic psychosis: cognitive, functional and cortical outcomes from a single blind randomised controlled trial. Psychol Med 2018; 48:751-764. [PMID: 28933314 DOI: 10.1017/s0033291717001982] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cognitive remediation (CR) training has emerged as a promising approach to improving cognitive deficits in schizophrenia and related psychosis. The limited availability of psychological services for psychosis is a major barrier to accessing this intervention however. This study investigated the effectiveness of a low support, remotely accessible, computerised working memory (WM) training programme in patients with psychosis. METHODS Ninety patients were enrolled into a single blind randomised controlled trial of CR. Effectiveness of the intervention was assessed in terms of neuropsychological performance, social and occupational function, and functional MRI 2 weeks post-intervention, with neuropsychological and social function again assessed 3-6 months post-treatment. RESULTS Patients who completed the intervention showed significant gains in both neuropsychological function (measured using both untrained WM and episodic task performance, and a measure of performance IQ), and social function at both 2-week follow-up and 3-6-month follow-up timepoints. Furthermore, patients who completed MRI scanning showed improved resting state functional connectivity relative to patients in the placebo condition. CONCLUSIONS CR training has already been shown to improve cognitive and social function in patient with psychosis. This study demonstrates that, at least for some chronic but stable outpatients, a low support treatment was associated with gains that were comparable with those reported for CR delivered entirely on a 1:1 basis. We conclude that CR has potential to be delivered even in services in which psychological supports for patients with psychosis are limited.
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Affiliation(s)
- G Donohoe
- School of Psychology& Center for Neuroimaging and Cognitive Genomics,National University of Ireland Galway,Galway,Ireland
| | - R Dillon
- Department of Psychiatry,Trinity College Dublin,Dublin,Ireland
| | - A Hargreaves
- Department of Psychiatry,Trinity College Dublin,Dublin,Ireland
| | - O Mothersill
- School of Psychology& Center for Neuroimaging and Cognitive Genomics,National University of Ireland Galway,Galway,Ireland
| | - M Castorina
- Trinity College Institute of Neuroscience,Trinity College Dublin,Ireland,Trinity College Dublin,Ireland
| | - E Furey
- School of Psychology& Center for Neuroimaging and Cognitive Genomics,National University of Ireland Galway,Galway,Ireland
| | - A J Fagan
- National Centre for Advanced Medical Imaging (CAMI),St. James's Hospital/School of Medicine,Trinity College Dublin,Dublin,Ireland
| | - J F Meaney
- National Centre for Advanced Medical Imaging (CAMI),St. James's Hospital/School of Medicine,Trinity College Dublin,Dublin,Ireland
| | - B Fitzmaurice
- Department of Psychiatry,Trinity College Dublin,Dublin,Ireland
| | - B Hallahan
- Department of Psychiatry & Center for neuroimaging and Cognitive genomics,National University of Ireland Galway,Ireland
| | - C McDonald
- Department of Psychiatry & Center for neuroimaging and Cognitive genomics,National University of Ireland Galway,Ireland
| | - T Wykes
- Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,England
| | - A Corvin
- Department of Psychiatry,Trinity College Dublin,Dublin,Ireland
| | - I H Robertson
- Trinity College Institute of Neuroscience,Trinity College Dublin,Ireland,Trinity College Dublin,Ireland
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17
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Brooks SJ, Funk SG, Young SY, Schiöth HB. The Role of Working Memory for Cognitive Control in Anorexia Nervosa versus Substance Use Disorder. Front Psychol 2017; 8:1651. [PMID: 29018381 PMCID: PMC5615794 DOI: 10.3389/fpsyg.2017.01651] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 09/07/2017] [Indexed: 01/20/2023] Open
Abstract
Prefrontal cortex executive functions, such as working memory (WM) interact with limbic processes to foster impulse control. Such an interaction is referred to in a growing body of publications by terms such as cognitive control, cognitive inhibition, affect regulation, self-regulation, top-down control, and cognitive–emotion interaction. The rising trend of research into cognitive control of impulsivity, using various related terms reflects the importance of research into impulse control, as failure to employ cognitions optimally may eventually result in mental disorder. Against this background, we take a novel approach using an impulse control spectrum model – where anorexia nervosa (AN) and substance use disorder (SUD) are at opposite extremes – to examine the role of WM for cognitive control. With this aim, we first summarize WM processes in the healthy brain in order to frame a systematic review of the neuropsychological, neural and genetic findings of AN and SUD. In our systematic review of WM/cognitive control, we found n = 15 studies of AN with a total of n = 582 AN and n = 365 HC participants; and n = 93 studies of SUD with n = 9106 SUD and n = 3028 HC participants. In particular, we consider how WM load/capacity may support the neural process of excessive epistemic foraging (cognitive sampling of the environment to test predictions about the world) in AN that reduces distraction from salient stimuli. We also consider the link between WM and cognitive control in people with SUD who are prone to ‘jumping to conclusions’ and reduced epistemic foraging. Finally, in light of our review, we consider WM training as a novel research tool and an adjunct to enhance treatment that improves cognitive control of impulsivity.
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Affiliation(s)
- Samantha J Brooks
- Functional Pharmacology, Department of Neuroscience, Uppsala UniversityUppsala, Sweden.,Department of Psychiatry and Mental Health, University of Cape TownCape Town, South Africa
| | - Sabina G Funk
- Department of Psychiatry and Mental Health, University of Cape TownCape Town, South Africa
| | - Susanne Y Young
- Department of Psychiatry, Stellenbosch UniversityBellville, South Africa
| | - Helgi B Schiöth
- Functional Pharmacology, Department of Neuroscience, Uppsala UniversityUppsala, Sweden
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18
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Lee EK, Kim HS, Yoo HK. Augmentative Effects of Working Memory Training on Behavioral Problems and Parental Stress in Medicated Children and Adolescents with Attention-Deficit Hyperactivity Disorder. Soa Chongsonyon Chongsin Uihak 2017. [DOI: 10.5765/jkacap.2017.28.2.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
| | - Hye Sun Kim
- Seoul Brain Research Institute, Seoul, Korea
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19
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Brooks SJ, Wiemerslage L, Burch KH, Maiorana SA, Cocolas E, Schiöth HB, Kamaloodien K, Stein DJ. The impact of cognitive training in substance use disorder: the effect of working memory training on impulse control in methamphetamine users. Psychopharmacology (Berl) 2017; 234:1911-1921. [PMID: 28324119 PMCID: PMC5486910 DOI: 10.1007/s00213-017-4597-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 03/11/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Impulsivity is a vulnerability trait for poor self-regulation in substance use disorder (SUD). Working memory (WM) training improves impulsivity and self-regulation in psychiatric disorders. Here we test WM training in methamphetamine use disorder (MUD). METHODS There are 15 MUD patients receiving inpatient treatment as usual (TAU) and 20 who additionally completed WM cognitive training (CT) and 25 healthy controls (HC). MANCOVA repeated measures analyses examined changes in impulsivity and self-regulation at baseline and after 4 weeks. RESULTS Post hoc t tests confirmed that at baseline, feelings of self-control were significantly lower in the MUD (t = 2.001, p = 0.05) and depression was higher (t = 4.980, p = 0.001), as was BIS total impulsivity (t = 5.370, p = 0.001) compared to the HC group. Total self-regulation score was higher in HC than MUD patients (t = 5.370, p = 0.001). CT had a 35% learning rate (R 2 = 0.3523, p < 0.05). Compared to follow-up TAU, follow-up CT group had higher self-reported mood scores (t = 2.784, p = 0.01) and higher compared to CT baseline (t = 2.386, p = 0.036). Feelings of self-control were higher in CT than TAU at follow-up (t = 2.736, p = 0.012) and also compared to CT baseline (t = 3.390, p = 0.006), lack of planning significantly improved in CT between baseline and follow-up (t = 2.219, p = 0.048), as did total impulsivity scores (t = 2.085, p = 0.048). Measures of self-regulation were improved in the CT group compared to TAU at follow-up, in total score (t = 2.442, p = 0.038), receiving score (t = 2.314, p = 0.029) and searching score (t = 2.362, p = 0.027). Implementing self-regulation was higher in the CT group compared to TAU (t = 2.373, p = 0.026). CONCLUSIONS WM training may improve control of impulsivity and self-regulation in people with MUD.
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Affiliation(s)
- Samantha J. Brooks
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - L Wiemerslage
- 0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - KH Burch
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,0000 0004 1936 8868grid.4563.4Department of Neuroscience, University of Nottingham, Nottingham, UK
| | - SA Maiorana
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,UCT Department of Psychology, Cape Town, South Africa
| | - E Cocolas
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa
| | - HB Schiöth
- 0000 0004 1936 9457grid.8993.bDepartment of Neuroscience, Uppsala University, Uppsala, Sweden
| | - K Kamaloodien
- 0000 0001 2156 8226grid.8974.2Department of Psychology, University of the Western Cape, Cape Town, South Africa
| | - DJ Stein
- 0000 0004 0635 1506grid.413335.3UCT Department of Psychiatry and Mental Health, Groote Schuur Hospital, Anzio Road, Observatory, Cape Town, South Africa ,MRC Unit on Anxiety and Stress Disorders, Cape Town, South Africa
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The effects of working memory training on enhancing hedonic processing to affective rewards in individuals with high social anhedonia. Psychiatry Res 2016; 245:482-490. [PMID: 27639163 DOI: 10.1016/j.psychres.2016.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 06/09/2016] [Accepted: 09/05/2016] [Indexed: 11/20/2022]
Abstract
Anhedonia is a core feature of the negative symptoms of schizophrenia and is less responsive to antipsychotic medication. Little is known whether anhedonia could be alleviated by cognitive training. The present study aimed to examine whether hedonic deficits observed in individuals with high social anhedonia could be reduced by working memory (WM) training. Thirty-four individuals with high social anhedonia were randomly assigned to either a WM training group or a control group. The WM training group received 20 sessions of dual n-back task training for four weeks. The affective incentive delay task was administered in all participants before the training and one month later. The results showed that individuals who received the WM training showed significant improvement in WM performance (F(19, 304)=55.80, p<0.001) and they also showed significant improvement in approach sensitivity to rewards (p=0.004). These preliminary findings suggest that hedonic processing could be improved through WM training in individuals with high social anhedonia. These results may have important implications for the development of non-pharmacological interventions to alleviate anhedonia in patients with schizophrenia.
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21
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The neural transfer effect of working memory training to enhance hedonic processing in individuals with social anhedonia. Sci Rep 2016; 6:35481. [PMID: 27752140 PMCID: PMC5067564 DOI: 10.1038/srep35481] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/30/2016] [Indexed: 12/11/2022] Open
Abstract
Anhedonia, the diminished ability to experience pleasure, is a challenging negative symptom in patients with schizophrenia and can be observed in at-risk individuals with schizotypy. Deficits in hedonic processing have been postulated to be related to decreased motivation to engage in potentially rewarding events. It remains unclear whether non-pharmacological interventions, such as cognitive training, could improve anhedonia. The present study aimed to examine the neural mechanism for alleviating hedonic deficits with working memory (WM) training in individuals with social anhedonia. Fifteen individuals with social anhedonia were recruited and received 20 sessions of training on a dual n-back task, five sessions a week. Functional imaging paradigms of the Monetary Incentive Delay (MID) and the Affective Incentive Delay (AID) tasks were administered both before and after the training to evaluate the neural transfer effects on hedonic processing ability. Enhanced brain activations related to anticipation were observed at the anterior cingulate cortex, the left dorsal striatum and the left precuneus with the AID task, and at the dorsolateral prefrontal cortex and the supramarginal gyrus with the MID task. The present findings support that WM training may improve monetary-based and affective-based hedonic processing in individuals with social anhedonia.
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22
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Brooks S, Burch K, Maiorana S, Cocolas E, Schioth H, Nilsson E, Kamaloodien K, Stein D. Psychological intervention with working memory training increases basal ganglia volume: A VBM study of inpatient treatment for methamphetamine use. Neuroimage Clin 2016; 12:478-91. [PMID: 27625988 PMCID: PMC5011179 DOI: 10.1016/j.nicl.2016.08.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/15/2016] [Accepted: 08/22/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND Protracted methamphetamine (MA) use is associated with decreased control over drug craving and altered brain volume in the frontostriatal network. However, the nature of volumetric changes following a course of psychological intervention for MA use is not yet known. METHODS 66 males (41 MA patients, 25 healthy controls, HC) between the ages of 18-50 were recruited, the MA patients from new admissions to an in-patient drug rehabilitation centre and the HC via public advertisement, both in Cape Town, South Africa. 17 MA patients received 4 weeks of treatment as usual (TAU), and 24 MA patients completed TAU plus daily 30-minute cognitive training (CT) using an N-back working memory task. Magnetic resonance imaging (MRI) at baseline and 4-week follow-up was acquired and voxel-based morphometry (VBM) was used for analysis. RESULTS TAU was associated with larger bilateral striatum (caudate/putamen) volume, whereas CT was associated with more widespread increases of the bilateral basal ganglia (incorporating the amygdala and hippocampus) and reduced bilateral cerebellum volume coinciding with improvements in impulsivity scores. CONCLUSIONS While psychological intervention is associated with larger volume in mesolimbic reward regions, the utilisation of additional working memory training as an adjunct to treatment may further normalize frontostriatal structure and function.
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Affiliation(s)
- S.J. Brooks
- Department of Psychiatry and Mental Health, Groote Schuur Hospital and University of Cape Town, MRC Unit on Anxiety and Stress Disorders, South Africa
| | - K.H. Burch
- Department of Psychiatry and Mental Health, Groote Schuur Hospital and University of Cape Town, MRC Unit on Anxiety and Stress Disorders, South Africa
- Department of Neuroscience, University of Nottingham, UK
| | - S.A. Maiorana
- Department of Psychology, University of Cape Town, South Africa
| | - E. Cocolas
- Department of Psychiatry and Mental Health, Groote Schuur Hospital and University of Cape Town, MRC Unit on Anxiety and Stress Disorders, South Africa
| | - H.B. Schioth
- Department of Neuroscience, Uppsala University, Sweden
| | - E.K. Nilsson
- Department of Neuroscience, Uppsala University, Sweden
| | - K. Kamaloodien
- Department of Psychology, University of the Western Cape, Bellville, Cape Town, South Africa
| | - D.J. Stein
- Department of Psychiatry and Mental Health, Groote Schuur Hospital and University of Cape Town, MRC Unit on Anxiety and Stress Disorders, South Africa
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Bryce S, Sloan E, Lee S, Ponsford J, Rossell S. Cognitive remediation in schizophrenia: A methodological appraisal of systematic reviews and meta-analyses. J Psychiatr Res 2016; 75:91-106. [PMID: 26828372 DOI: 10.1016/j.jpsychires.2016.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/01/2015] [Accepted: 01/04/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Systematic reviews and meta-analyses are a primary source of evidence when evaluating the benefit(s) of cognitive remediation (CR) in schizophrenia. These studies are designed to rigorously synthesize scientific literature; however, cannot be assumed to be of high methodological quality. The aims of this report were to: 1) review the use of systematic reviews and meta-analyses regarding CR in schizophrenia; 2) conduct a systematic methodological appraisal of published reports examining the benefits of this intervention on core outcome domains; and 3) compare the correspondence between methodological and reporting quality. METHOD Electronic databases were searched for relevant articles. Twenty-one reviews met inclusion criteria and were scored according to the AMSTAR checklist-a validated scale of methodological quality. Five meta-analyses were also scored according to PRISMA statement to compare 'quality of conduct' with 'quality of reporting'. RESULTS Most systematic reviews and meta-analyses shared strengths and fell within a 'medium' level of methodological quality. Nevertheless, there were consistent areas of potential weakness that were not addressed by most reviews. These included the lack of protocol registration, uncertainty regarding independent data extraction and consensus procedures, and the minimal assessment of publication bias. Moreover, quality of conduct may not necessarily parallel quality of reporting, suggesting that consideration of these methods independently may be important. CONCLUSIONS Reviews concerning CR for schizophrenia are a valuable source of evidence. However, the methodological quality of these reports may require additional consideration. Enhancing quality of conduct is essential for enabling research literature to be interpreted with confidence.
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Affiliation(s)
- Shayden Bryce
- School of Psychological Sciences, Monash University, Clayton, VIC, Australia; Monash Alfred Psychiatry Research Centre, The Alfred and Monash University Central Clinical School, Melbourne, VIC, Australia.
| | - Elise Sloan
- School of Psychology, Deakin University, Burwood, VIC, Australia
| | - Stuart Lee
- School of Psychological Sciences, Monash University, Clayton, VIC, Australia; Monash Alfred Psychiatry Research Centre, The Alfred and Monash University Central Clinical School, Melbourne, VIC, Australia
| | - Jennie Ponsford
- Monash-Epworth Rehabilitation Research Centre, Richmond, VIC, Australia
| | - Susan Rossell
- School of Psychological Sciences, Monash University, Clayton, VIC, Australia; Monash Alfred Psychiatry Research Centre, The Alfred and Monash University Central Clinical School, Melbourne, VIC, Australia; Brain and Psychological Sciences Research Centre, Swinburne University of Technology, Hawthorn, VIC, Australia
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Isaac C, Januel D. Neural correlates of cognitive improvements following cognitive remediation in schizophrenia: a systematic review of randomized trials. SOCIOAFFECTIVE NEUROSCIENCE & PSYCHOLOGY 2016; 6:30054. [PMID: 26993787 PMCID: PMC4799394 DOI: 10.3402/snp.v6.30054] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/31/2015] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Cognitive impairments are a core feature in schizophrenia and are linked to poor social functioning. Numerous studies have shown that cognitive remediation can enhance cognitive and functional abilities in patients with this pathology. The underlying mechanism of these behavioral improvements seems to be related to structural and functional changes in the brain. However, studies on neural correlates of such enhancement remain scarce. OBJECTIVES We explored the neural correlates of cognitive enhancement following cognitive remediation interventions in schizophrenia and the differential effect between cognitive training and other therapeutic interventions or patients' usual care. METHOD We searched MEDLINE, PsycInfo, and ScienceDirect databases for studies on cognitive remediation therapy in schizophrenia that used neuroimaging techniques and a randomized design. Search terms included randomized controlled trial, cognitive remediation, cognitive training, rehabilitation, magnetic resonance imaging, positron emission tomography, electroencephalography, magnetoencephalography, near infrared spectroscopy, and diffusion tensor imaging. We selected randomized controlled trials that proposed multiple sessions of cognitive training to adult patients with a schizophrenia spectrum disorder and assessed its efficacy with imaging techniques. RESULTS In total, 15 reports involving 19 studies were included in the systematic review. They involved a total of 455 adult patients, 271 of whom received cognitive remediation. Cognitive remediation therapy seems to provide a neurobiological enhancing effect in schizophrenia. After therapy, increased activations are observed in various brain regions mainly in frontal - especially prefrontal - and also in occipital and anterior cingulate regions during working memory and executive tasks. Several studies provide evidence of an improved functional connectivity after cognitive training, suggesting a neuroplastic effect of therapy through mechanisms of functional reorganization. Neurocognitive and social-cognitive training may have a cumulative effect on neural networks involved in social cognition. The variety of proposed programs, imaging tasks, and techniques may explain the heterogeneity of observed neural improvements. Future studies would need to specify the effect of cognitive training depending on those variables.
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Affiliation(s)
- Clémence Isaac
- Unité de Recherche Clinique, EPS Ville Evrard, Neuilly-Sur-Marne, France;
| | - Dominique Januel
- Unité de Recherche Clinique, EPS Ville Evrard, Neuilly-Sur-Marne, France
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25
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Wang P, Cai J, Ni J, Zhang J, Tang W, Zhang C. The NCAN gene: schizophrenia susceptibility and cognitive dysfunction. Neuropsychiatr Dis Treat 2016; 12:2875-2883. [PMID: 27853371 PMCID: PMC5104293 DOI: 10.2147/ndt.s118160] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Cognitive dysfunction has been recognized as a cardinal feature of schizophrenia. Elucidating the neurobiological substrates of cognitive dysfunction in schizophrenia would help identify the underlying mechanism of this disorder. The rs1064395 single nucleotide polymorphism, within the gene encoding neurocan (NCAN), is reported to be associated with schizophrenia in European populations and may influence brain structure in patients with schizophrenia. METHODS In this study, we aimed to explore whether NCAN rs1064395 confers some risk for schizophrenia and cognitive dysfunction in Han Chinese. We recruited 681 patients with schizophrenia and 699 healthy subjects. Two hundred and fifty-four patients were evaluated according to Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). RESULTS There were no significant differences in genotype or allele distributions of the rs1064395 polymorphism between the schizophrenia and control groups. Patients showed significantly poorer performance than controls on immediate memory, visuospatial skill, language, attention, delayed memory, and total RBANS score. Patients with the A/A or A/G genotype of rs1064395 had lower scores of immediate memory, visuospatial skill, attention, and total RBANS score than those with the G/G genotype. We performed an expression quantitative trait loci analysis and observed a significant association between rs1064395 and NCAN expression in the frontal (P=0.0022, P=0.022 after Bonferroni correction) and cerebellar cortex (P=0.0032, P=0.032 after Bonferroni correction). CONCLUSION Our findings indicate that this single nucleotide polymorphism may be a risk factor for cognitive dysfunction in patients with schizophrenia. Further investigations are warranted for validation purposes and to identify the precise mechanism by which rs1064395 influences cognitive performance in patients with schizophrenia.
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Affiliation(s)
- Peirong Wang
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Jun Cai
- Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai
| | - Jianliang Ni
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Jiangtao Zhang
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Wei Tang
- Wenzhou Kangning Hospital, Wenzhou, Zhejiang, People's Republic of China
| | - Chen Zhang
- Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai
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Ansari S. The therapeutic potential of working memory training for treating mental disorders. Front Hum Neurosci 2015; 9:481. [PMID: 26388759 PMCID: PMC4558973 DOI: 10.3389/fnhum.2015.00481] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 08/17/2015] [Indexed: 11/13/2022] Open
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