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Kuhn L, Choy O, Keller L, Habel U, Wagels L. Prefrontal tDCS modulates risk-taking in male violent offenders. Sci Rep 2024; 14:10087. [PMID: 38698192 PMCID: PMC11066090 DOI: 10.1038/s41598-024-60795-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/26/2024] [Indexed: 05/05/2024] Open
Abstract
Detrimental decision-making is a major problem among violent offenders. Non-invasive brain stimulation offers a promising method to directly influence decision-making and has already been shown to modulate risk-taking in non-violent controls. We hypothesize that anodal transcranial direct current stimulation (tDCS) over the right dorsolateral prefrontal cortex beneficially modulates the neural and behavioral correlates of risk-taking in a sample of violent offenders. We expect offenders to show more risky decision-making than non-violent controls and that prefrontal tDCS will induce stronger changes in the offender group. In the current study, 22 male violent offenders and 24 male non-violent controls took part in a randomized double-blind sham-controlled cross-over study applying tDCS over the right dorsolateral prefrontal cortex. Subsequently, participants performed the Balloon Analogue Risk Task (BART) during functional magnetic resonance imaging (fMRI). Violent offenders showed significantly less optimal decision-making compared to non-violent controls. Active tDCS increased prefrontal activity and improved decision-making only in violent offenders but not in the control group. Also, in offenders only, prefrontal tDCS influenced functional connectivity between the stimulated area and other brain regions such as the thalamus. These results suggest baseline dependent effects of tDCS and pave the way for treatment options of disadvantageous decision-making behavior in this population.
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Affiliation(s)
- Leandra Kuhn
- Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany.
| | - Olivia Choy
- Department of Psychology, Nanyang Technological University, Singapore, Singapore
| | - Lara Keller
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital RWTH, Aachen, Germany
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
- Institute of Neuroscience and Medicine: JARA-Institute Brain Structure Function Relationship (INM 10), Research Center Jülich, Jülich, Germany
| | - Lisa Wagels
- Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
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2
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Jansen JM, Franse ME. Executive functioning in antisocial behavior: A multi-level systematic meta-analysis. Clin Psychol Rev 2024; 109:102408. [PMID: 38430781 DOI: 10.1016/j.cpr.2024.102408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 01/30/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024]
Abstract
Neurobiological information - including executive functioning - is increasingly relevant for forensic clinical practice, as well as for the criminal justice system. Previous meta-analyses report that antisocial populations show impaired performance on executive functioning tasks, but these meta-analyses are outdated, have limitations in their methodological approach, and are therefore in need of an update. The current multi-level meta-analysis including 133 studies (2008-2023) confirms impaired performance in executive functioning (d=.42), but studies are heterogeneous. Several moderator analyses showed that neuropsychological test used, type of executive function component, and control group characteristics moderated the overall effect. Specifically, matching psychiatric problems in the non-antisocial control group eliminated any differences in executive functioning between groups. No moderation effects were found for assessment quality, hot or cold executive functions, and various population characteristics. These results could indicate that the assessment of executive functioning in antisocial populations may be less relevant for recidivism risk assessment than thought, although this should first be assessed in prospective longitudinal studies. Executive functioning could potentially be used to identify or screen for individuals with certain treatment needs or be used as a responsivity factor, especially in disorders which are often underdiagnosed in criminal justice settings.
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Affiliation(s)
- Jochem Milan Jansen
- Institute for Criminal Law & Criminology, Faculty of Law, Leiden University, Leiden, Netherlands; Inforsa, Arkin, Amsterdam, The Netherlands.
| | - Melanie Elisabeth Franse
- Netherlands Institute of Forensic Psychiatry and Psychology, Department of Science and Education, Herman Gorterstraat 5, 3511EW Utrecht, Netherlands; Institute of Education and Child Studies, Faculty of Social Sciences, Leiden University, Wassenaarseweg 52, 2333AK Leiden, Netherlands
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3
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Ren P, Ma M, Zhuang Y, Huang J, Tan M, Wu D, Luo G. Dorsal and ventral fronto-amygdala networks underlie risky decision-making in age-related cognitive decline. GeroScience 2024; 46:447-462. [PMID: 37698782 PMCID: PMC10828304 DOI: 10.1007/s11357-023-00922-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/21/2023] [Indexed: 09/13/2023] Open
Abstract
Older adults often have difficulty in making decisions under uncertainty, increasing the risk of financial exploitation. However, it is still under investigation about the extent to which cognitive decline influences risky decision-making and the underlying neural correlates. We hypothesized that the individual differences of risk-taking behavior depend on cognitive integrity, in which the dorsal and ventral fronto-amygdala connectivity would play dissociable roles. In the current study, thirty-six young and 51 older adults were tested with the Iowa gambling task combing resting-state and task-related functional magnetic resonance imaging. The results showed significant changes in behaviors and the fronto-amygdala network in older adults relative to young adults. More importantly, age-effect on risk-taking behaviors was remarkably different in cognitively normal and impaired older adults. In resting-state analysis, task performance was positively correlated with the ventral fronto-amygdala connectivity and negatively correlated with the dorsal fronto-amygdala connectivity in cognitively impaired older adults, compared with cognitively normal individuals. Furthermore, task-related analysis confirmed the relationships between dorsal/ventral fronto-amygdala network and risk-taking behaviors depending on cognitive integrity. These findings indicate that the fronto-amygdala network is crucial for understanding altered risky decision-making in aging, suggesting dissociable contributions of the dorsal and ventral pathways in the context of cognitive decline.
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Affiliation(s)
- Ping Ren
- Department of Geriatric Psychiatry, Shenzhen Mental Health Center/Shenzhen Kangning Hospital, Shenzhen, Guangdong, China.
| | - Manxiu Ma
- Queensland Brain Institute, University of Queensland, St. Lucia, QLD, Australia
| | - Yuchuan Zhuang
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
| | - Jiayin Huang
- Department of Geriatric Psychiatry, Shenzhen Mental Health Center/Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
| | - Meiling Tan
- Department of Geriatric Psychiatry, Shenzhen Mental Health Center/Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
| | - Donghui Wu
- Department of Geriatric Psychiatry, Shenzhen Mental Health Center/Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
| | - Guozhi Luo
- Department of Geriatric Psychiatry, Shenzhen Mental Health Center/Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
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4
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van de Groep IH, G N Bos M, Jansen LMC, Popma A, Crone EA. Through the looking glass: the neural basis of self-concept in young adults with antisocial trajectories. Soc Cogn Affect Neurosci 2023; 18:7156805. [PMID: 37154430 PMCID: PMC10165683 DOI: 10.1093/scan/nsad016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/27/2023] [Accepted: 03/16/2023] [Indexed: 05/10/2023] Open
Abstract
Self-concept is shaped by social experiences, but it is not yet well understood how the neural and behavioral development of self-concept is influenced by a history of antisocial behavior. In this pre-registered study, we examined neural responses to self-evaluations in young adults who engaged with antisocial behavior in childhood and either desisted or persisted in antisocial behavior. A self-concept task was performed by 94 young adults (age range 18-30 years). During the task, participants with a persistent or desistent antisocial trajectory (n = 54) and typically developing young adults (n = 40) rated whether positive and negative traits in different domains (prosocial and physical) described themselves. We examined both the effects of a history of antisocial behavior as well as current heterogeneity in psychopathic traits on self-concept appraisal and its neural underpinnings. Participants endorsed more positive trait statements than negative across domains, which did not differ between antisocial-history groups. However, current psychopathic traits were negatively associated with prosocial self-concept and medial prefrontal cortex activity during self-evaluation. Together, these findings suggest that antisocial tendencies might indeed be reflected in self-concept development of young adults, specifically in the prosocial domain.
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Affiliation(s)
- Ilse H van de Groep
- Erasmus School of Social and Behavioural Sciences, Erasmus University, Rotterdam 3062 PA, The Netherlands
- Leiden Institute for Brain and Cognition, Leiden University, Leiden 2300 RC, The Netherlands
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, 1100 DD Amsterdam Zuidoost, The Netherlands
- Developmental and Educational Psychology, Faculty of Social and Behavioural Sciences, Leiden University, Leiden 2333 AK, The Netherlands
| | - Marieke G N Bos
- Leiden Institute for Brain and Cognition, Leiden University, Leiden 2300 RC, The Netherlands
- Developmental and Educational Psychology, Faculty of Social and Behavioural Sciences, Leiden University, Leiden 2333 AK, The Netherlands
| | - Lucres M C Jansen
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, 1100 DD Amsterdam Zuidoost, The Netherlands
| | - Arne Popma
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, 1100 DD Amsterdam Zuidoost, The Netherlands
| | - Eveline A Crone
- Erasmus School of Social and Behavioural Sciences, Erasmus University, Rotterdam 3062 PA, The Netherlands
- Leiden Institute for Brain and Cognition, Leiden University, Leiden 2300 RC, The Netherlands
- Developmental and Educational Psychology, Faculty of Social and Behavioural Sciences, Leiden University, Leiden 2333 AK, The Netherlands
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5
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Ye S, Zhu B, Zhao L, Tian X, Yang Q, Krueger F. Connectome-based model predicts individual psychopathic traits in college students. Neurosci Lett 2021; 769:136387. [PMID: 34883220 DOI: 10.1016/j.neulet.2021.136387] [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: 06/22/2021] [Revised: 11/26/2021] [Accepted: 12/02/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Psychopathic traits have been suggested to increase the risk of violations of socio-moral norms. Previous studies revealed that abnormal neural signatures are associated with elevated psychopathic traits; however, whether the intrinsic network architecture can predict psychopathic traits at the individual level remains unclear. METHODS The present study utilized connectome-based predictive modeling (CPM) to investigate whether whole-brain resting-state functional connectivity (RSFC) can predict psychopathic traits in the general population. Resting-state fMRI data were collected from 84 college students with varying psychopathic traits measured by the Levenson Self-Report Psychopathy Scale (LSRP). RESULTS Functional connections that were negatively correlated with psychopathic traits predicted individual differences in total LSRP and secondary psychopathy score but not primary score. Particularly, nodes with the most connections in the predictive connectome anchored in the prefrontal cortex (e.g., anterior prefrontal cortex and orbitofrontal cortex) and limbic system (e.g., anterior cingulate cortex and insula). In addition, the connections between the occipital network (OCCN) and cingulo-opercular network (CON) served as a significant predictive connectome for total LSRP and secondary psychopathy score. CONCLUSION CPM constituted by whole-brain RSFC significantly predicted psychopathic traits individually in the general population. The brain areas including the prefrontal cortex and limbic system and large-scale networks including the CON and OCCN play special roles in the predictive model-possibly reflecting atypical cognitive control and affective processing for individuals with elevated psychopathic traits. These findings may facilitate detection and potential intervention of individuals with maladaptive psychopathic tendency.
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Affiliation(s)
- Shuer Ye
- Department of Psychology, Jing Hengyi School of Education, Hangzhou Normal University, Hangzhou, China
| | - Bing Zhu
- School of Marxism, Zhejiang Yuexiu University, Shaoxing, China
| | - Lei Zhao
- Department of Psychology, Jing Hengyi School of Education, Hangzhou Normal University, Hangzhou, China; Center for Cognition and Brain Disorders, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Xuehong Tian
- Department of Psychology, Jing Hengyi School of Education, Hangzhou Normal University, Hangzhou, China
| | - Qun Yang
- Department of Psychology, Jing Hengyi School of Education, Hangzhou Normal University, Hangzhou, China.
| | - Frank Krueger
- School of Systems Biology, George Mason University, Fairfax, VA, USA; Department of Psychology, University of Mannheim, Mannheim, Germany
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6
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Van de Groep IH, Bos MGN, Jansen LMC, Achterberg M, Popma A, Crone EA. Overlapping and distinct neural correlates of self-evaluations and self-regulation from the perspective of self and others. Neuropsychologia 2021; 161:108000. [PMID: 34419488 DOI: 10.1016/j.neuropsychologia.2021.108000] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 07/26/2021] [Accepted: 08/17/2021] [Indexed: 01/18/2023]
Abstract
Prior research has implicated the medial and lateral prefrontal cortex (PFC) in processing evaluations from the perspective of self (self-traits) and evaluations from others (peer feedback), suggesting that these areas form a neural substrate that serves an intertwined function in monitoring self in relation to others. To test this possibility, we examined neural activation overlap in medial and lateral PFC after processing self- and other-informed evaluations. Young adults (age range 18-30-yrs, n = 40) performed two fMRI tasks. The self-concept task involved rating whether positive and negative traits described themselves. The Social Network Aggression Task involved processing positive, neutral or negative feedback from others, with the possibility to retaliate by blasting a loud noise following feedback. The results show that rating positive self traits and receiving positive peer feedback was associated with increased activity in an overlapping region in medial PFC. There were no significant correlations on a behavioral level and medial PFC activity for self-versus-other evaluations. The study further replicated the finding from previous research showing that higher activity in dorsolateral PFC (dlPFC) when receiving negative social feedback was associated with reduced noise blast aggression. Finally, during retaliatory responses after receiving positive feedback, participants showed increased activity in the dlPFC. Together these findings suggest that medial PFC is more strongly involved in protecting positive self-views from both internal (self traits) and external (peer feedback) points of view, whereas dlPFC is more strongly involved in regulating retaliatory responses following social rejection, and actively inhibiting aggressive behavior after receiving positive peer feedback.
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Affiliation(s)
- Ilse H Van de Groep
- Erasmus School of Social and Behavioral Sciences, Erasmus University Rotterdam, the Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, Amsterdam, the Netherlands.
| | - Marieke G N Bos
- Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Developmental and Educational Psychology, Institute of Psychology, Leiden University, the Netherlands
| | - Lucres M C Jansen
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Michelle Achterberg
- Erasmus School of Social and Behavioral Sciences, Erasmus University Rotterdam, the Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands; Department of Developmental and Educational Psychology, Institute of Psychology, Leiden University, the Netherlands
| | - Arne Popma
- Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Eveline A Crone
- Erasmus School of Social and Behavioral Sciences, Erasmus University Rotterdam, the Netherlands; Leiden Institute for Brain and Cognition, Leiden University, the Netherlands
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7
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Hsu WY, Rowles W, Anguera J, Zhao C, Anderson A, Alexander A, Sacco S, Henry R, Gazzaley A, Bove R. Application of an Adaptive, Digital, Game-Based Approach for Cognitive Assessment in Multiple Sclerosis: Observational Study. J Med Internet Res 2021; 23:e24356. [PMID: 33470940 PMCID: PMC7840186 DOI: 10.2196/24356] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/14/2020] [Accepted: 10/28/2020] [Indexed: 01/19/2023] Open
Abstract
Background Cognitive impairment is one of the most debilitating manifestations of multiple sclerosis. Currently, the assessment of cognition relies on a time-consuming and extensive neuropsychological examination, which is only available in some centers. Objective To enable simpler, more accessible cognitive screening, we sought to determine the feasibility and potential assessment sensitivity of an unsupervised, adaptive, video game–based digital therapeutic to assess cognition in multiple sclerosis. Methods A total of 100 people with multiple sclerosis (33 with cognitive impairment and 67 without cognitive impairment) and 24 adults without multiple sclerosis were tested with the tablet game (EVO Monitor) and standard measures, including the Brief International Cognitive Assessment for Multiple Sclerosis (which included the Symbol Digit Modalities Test [SDMT]) and Multiple Sclerosis Functional Composite 4 (which included the Timed 25-Foot Walk test). Patients with multiple sclerosis also underwent neurological evaluations and contributed recent structural magnetic resonance imaging scans. Group differences in EVO Monitor performance and the association between EVO Monitor performance and standard measures were investigated. Results Participants with multiple sclerosis and cognitive impairment showed worse performance in EVO Monitor compared with participants without multiple sclerosis (P=.01) and participants with multiple sclerosis without cognitive impairment (all P<.002). Regression analyses indicated that participants with a lower SDMT score showed lower performance in EVO Monitor (r=0.52, P<.001). Further exploratory analyses revealed associations between performance in EVO Monitor and walking speed (r=–0.45, P<.001) as well as brain volumetric data (left thalamic volume: r=0.47, P<.001; right thalamic volume: r=0.39, P=.002; left rostral middle frontal volume: r=0.28, P=.03; right rostral middle frontal volume: r=0.27, P=.03). Conclusions These findings suggest that EVO Monitor, an unsupervised, video game–based digital program integrated with adaptive mechanics, is a clinically valuable approach to measuring cognitive performance in patients with multiple sclerosis. Trial Registration ClinicalTrials.gov NCT03569618; https://clinicaltrials.gov/ct2/show/NCT03569618
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Affiliation(s)
- Wan-Yu Hsu
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - William Rowles
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Joaquin Anguera
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States.,Neuroscape, University of California, San Francisco, San Francisco, CA, United States.,Department of Psychiatry, University of California, San Francisco, San Francisco, CA, United States
| | - Chao Zhao
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Annika Anderson
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Amber Alexander
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Simone Sacco
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Roland Henry
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Adam Gazzaley
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States.,Neuroscape, University of California, San Francisco, San Francisco, CA, United States.,Department of Psychiatry, University of California, San Francisco, San Francisco, CA, United States.,Department of Physiology, University of California, San Francisco, San Francisco, CA, United States
| | - Riley Bove
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
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8
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Fatih P, Kucuker MU, Vande Voort JL, Doruk Camsari D, Farzan F, Croarkin PE. A Systematic Review of Long-Interval Intracortical Inhibition as a Biomarker in Neuropsychiatric Disorders. Front Psychiatry 2021; 12:678088. [PMID: 34149483 PMCID: PMC8206493 DOI: 10.3389/fpsyt.2021.678088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/06/2021] [Indexed: 12/23/2022] Open
Abstract
Long-interval intracortical inhibition (LICI) is a paired-pulse transcranial magnetic stimulation (TMS) paradigm mediated in part by gamma-aminobutyric acid receptor B (GABAB) inhibition. Prior work has examined LICI as a putative biomarker in an array of neuropsychiatric disorders. This review conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) sought to examine existing literature focused on LICI as a biomarker in neuropsychiatric disorders. There were 113 articles that met the inclusion criteria. Existing literature suggests that LICI may have utility as a biomarker of GABAB functioning but more research with increased methodologic rigor is needed. The extant LICI literature has heterogenous methodology and inconsistencies in findings. Existing findings to date are also non-specific to disease. Future research should carefully consider existing methodological weaknesses and implement high-quality test-retest reliability studies.
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Affiliation(s)
- Parmis Fatih
- Mayo Clinic Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - M Utku Kucuker
- Mayo Clinic Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Jennifer L Vande Voort
- Mayo Clinic Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Deniz Doruk Camsari
- Mayo Clinic Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Faranak Farzan
- School of Mechatronic Systems Engineering, Centre for Engineering-Led Brain Research, Simon Fraser University, Surrey, BC, Canada
| | - Paul E Croarkin
- Mayo Clinic Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
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9
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Perceived burdensomeness and neural responses to ostracism in the Cyberball task. J Psychiatr Res 2020; 130:1-8. [PMID: 32763557 PMCID: PMC7554229 DOI: 10.1016/j.jpsychires.2020.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/09/2020] [Accepted: 06/22/2020] [Indexed: 12/23/2022]
Abstract
Previous studies have identified the brain correlates of social pain processing during ostracism. However, the affective response to ostracism may vary according to individual differences in interpersonal needs and subsequent social actions. Despite this relationship, how the neural processes underlying ostracism may be modulated by interpersonal needs to regulate prosocial behaviors remains unknown. Here, in an fMRI study of 64 adults performing the Cyberball task, we quantified ball catching and tossing response time (RT) as a behavioral measure of participants' willingness to seek and reciprocate social interactions. Neural activations to social exclusion were identified and characterized in relation to individual differences in behavioral performance and perceived burdensomeness (PB), a measure of interpersonal needs. The results showed that social exclusion elicited activity in the anterior insula, middle frontal gyrus, postcentral gyrus, and dorsomedial prefrontal cortex, replicating previous studies on ostracism. Importantly, those with higher PB also exhibited greater brain activations to exclusion as well as reduced prosocial behaviors, as reflected by slower ball catching and tossing RT in the Cyberball task. Taken together, these findings suggest that emotional distress in ostracism may increase with PB, resulting in stronger neural responses to social pain and behavioral avoidance of social interactions.
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10
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Wang Y, Qin Y, Li H, Yao D, Sun B, Li Z, Li X, Dai Y, Wen C, Zhang L, Zhang C, Zhu T, Luo C. Abnormal Functional Connectivity in Cognitive Control Network, Default Mode Network, and Visual Attention Network in Internet Addiction: A Resting-State fMRI Study. Front Neurol 2019; 10:1006. [PMID: 31620077 PMCID: PMC6759465 DOI: 10.3389/fneur.2019.01006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 09/03/2019] [Indexed: 01/01/2023] Open
Abstract
Internet addiction (IA) has become a global mental and social problem, which may lead to a series of psychiatric symptoms including uncontrolled use of internet, and lack of concentration. However, the exact pathophysiology of IA remains unclear. Most of functional connectivity studies were based on pre-selected regions of interest (ROI), which could not provide a comprehensive picture of the communication abnormalities in IA, and might lead to limited or bias observations. Using local functional connectivity density (lFCD), this study aimed to explore the whole-brain abnormalities of functional connectivity in IA. We evaluated the whole-brain lFCD resulting from resting-state fMRI data in 28 IA individuals and 30 demographically matched healthy control subjects (HCs). The correlations between clinical characteristics and aberrant lFCD were also assessed. Compared with HCs, subjects with IA exhibited heightened lFCD values in the right dorsolateral prefrontal cortex (DLPFC), left parahippocampal gyrus (PHG), and cerebellum, and the bilateral middle cingulate cortex (MCC) and superior temporal pole (STP), as well as decreased lFCD values in the right inferior parietal lobe (IPL), and bilateral calcarine and lingual gyrus. Voxel-based correlation analysis revealed the significant correlations between the Young's Internet Addiction Test (IAT) score and altered lFCD values in the left PHG and bilateral STP. These findings revealed the hyper-connectivity in cognitive control network and default mode network as well as the hypo-connectivity in visual attention network, verifying the common mechanism in IA and substance addiction, and the underlying association between IA, and attention deficit/hyperactivity disorder in terms of neurobiology.
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Affiliation(s)
- Yang Wang
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Rehabilitation, Shuangliu Maternal and Child Health Care Hospital, Chengdu, China
| | - Yun Qin
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Hui Li
- School of Medicine, Chengdu University, Chengdu, China
| | - Dezhong Yao
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Bo Sun
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhiliang Li
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Xin Li
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Yu Dai
- School of Rehabilitation and Health Preservation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chao Wen
- Department of Rehabilitation, Zigong Fifth People's Hospital, Zigong, China
| | - Lingrui Zhang
- School of Rehabilitation and Health Preservation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chenchen Zhang
- School of Rehabilitation and Health Preservation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tianmin Zhu
- School of Rehabilitation and Health Preservation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Luo
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
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11
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Clark AP, Bontemps AP, Batky BD, Watts EK, Salekin RT. Psychopathy and neurodynamic brain functioning: A review of EEG research. Neurosci Biobehav Rev 2019; 103:352-373. [DOI: 10.1016/j.neubiorev.2019.05.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/28/2019] [Accepted: 05/30/2019] [Indexed: 01/18/2023]
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12
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Interhemispheric cortico-cortical paired associative stimulation of the prefrontal cortex jointly modulates frontal asymmetry and emotional reactivity. Brain Stimul 2019; 12:139-147. [DOI: 10.1016/j.brs.2018.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/31/2018] [Accepted: 10/05/2018] [Indexed: 01/19/2023] Open
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Delfin C, Andiné P, Hofvander B, Billstedt E, Wallinius M. Examining Associations Between Psychopathic Traits and Executive Functions in Incarcerated Violent Offenders. Front Psychiatry 2018; 9:310. [PMID: 30050476 PMCID: PMC6050384 DOI: 10.3389/fpsyt.2018.00310] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/21/2018] [Indexed: 02/03/2023] Open
Abstract
Executive functions (EFs) are essential in almost all aspects of daily life and have been robustly related to antisocial behavior. However, the relationship between psychopathy and EFs has remained equivocal. Research investigating lower-level trait dimensions of psychopathy using standardized EF measures could be beneficial in addressing this issue. In this study, we examined associations between four EFs and four dimensions of psychopathic traits (interpersonal, affective, lifestyle, antisocial) using zero-order correlation and a combination of classical and Bayesian statistical methods. Two hundred and fourteen incarcerated male violent offenders were assessed with the Psychopathy Checklist-Revised and completed tests of cognitive flexibility, spatial working memory, response inhibition, and planning and problem-solving using the Cambridge Neuropsychological Test Automated Battery. Lifestyle psychopathic traits were significantly associated with reduced initial thinking time in a planning and problem-solving task, with a Bayes factor indicating substantial evidence for the observed correlation, and antisocial psychopathic traits showed a significant association with reduced initial thinking time in the same task, although the Bayes factor indicated only anecdotal evidence. Significant associations were also found between affective and antisocial psychopathic traits and less efficient strategic thinking in a spatial working memory task, and between affective, lifestyle and antisocial psychopathic traits and fewer problems solved in a planning and problem-solving task, although these findings were not corroborated by the Bayesian analysis. While the observed effects ranged between small and medium, our study suggests that reduced initial thinking times in planning and problem-solving is robustly associated with higher degrees of lifestyle and antisocial psychopathic traits.
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Affiliation(s)
- Carl Delfin
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Research and Development Unit, Regional Forensic Psychiatric Clinic, Växjö, Sweden
| | - Peter Andiné
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Forensic Psychiatric Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Forensic Psychiatry, National Board of Forensic Medicine, Gothenburg, Sweden
| | - Björn Hofvander
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Sciences Lund, Child, and Adolescent Psychiatry, Faculty of Medicine, Lund University, Lund, Sweden
| | - Eva Billstedt
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Märta Wallinius
- Department of Psychiatry and Neurochemistry, Centre for Ethics, Law and Mental Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Research and Development Unit, Regional Forensic Psychiatric Clinic, Växjö, Sweden
- Department of Clinical Sciences Lund, Child, and Adolescent Psychiatry, Faculty of Medicine, Lund University, Lund, Sweden
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Altered brain structure in women with premenstrual syndrome. J Affect Disord 2018; 229:239-246. [PMID: 29329055 DOI: 10.1016/j.jad.2017.12.075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 10/19/2017] [Accepted: 12/31/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND Functional brain abnormalities have been noted in premenstrual syndrome (PMS). However, the brain structural alterations related to PMS remain unclear. This study aimed to identify possible abnormalities in gray matter (GM) volumes and structural covariance patterns among PMS patients. METHODS Structural magnetic resonance imaging data were obtained from 20 PMS patients and 20 healthy controls. Voxel-based morphometry (VBM) analysis was applied to examine GM volumes changes between the two groups. Receiver operating characteristic (ROC) curve was used to investigate the most reliable biomarker for distinguishing PMS patients from health controls based on the intergroup differences. Correlation analysis was then performed to assess relationships between the daily rating of severity of problems (DRSP) and abnormal brain regions. Finally, the regions identified from VBM analysis were served as seeds to characterize the whole-brain structural covariance patterns. RESULTS Compared with healthy controls, PMS patients showed increased GM volumes in the precuneus/posterior cingulate cortex (precuneus/PCC) and thalamus, and decreased GM volumes in the insula. The precuneus/PCC exhibited the highest classification power by ROC analysis and positively correlated with the DRSP. Moreover, different patterns of structural covariance in the two groups were mainly located in the dorsolateral prefrontal cortex, anterior cingulate cortex, angular gyrus and hippocampus. LIMITATIONS This study is limited by a small sample and narrow age range of participants. CONCLUSIONS Our findings may provide preliminary evidence for brain morphology alterations in PMS patients and contribute to a better understanding of the pathophysiology of PMS.
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Hsu WY, Zanto TP, van Schouwenburg MR, Gazzaley A. Enhancement of multitasking performance and neural oscillations by transcranial alternating current stimulation. PLoS One 2017; 12:e0178579. [PMID: 28562642 PMCID: PMC5451121 DOI: 10.1371/journal.pone.0178579] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/15/2017] [Indexed: 01/10/2023] Open
Abstract
Multitasking is associated with the generation of stimulus-locked theta (4–7 Hz) oscillations arising from prefrontal cortex (PFC). Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique that influences endogenous brain oscillations. Here, we investigate whether applying alternating current stimulation within the theta frequency band would affect multitasking performance, and explore tACS effects on neurophysiological measures. Brief runs of bilateral PFC theta-tACS were applied while participants were engaged in a multitasking paradigm accompanied by electroencephalography (EEG) data collection. Unlike an active control group, a tACS stimulation group showed enhancement of multitasking performance after a 90-minute session (F1,35 = 6.63, p = 0.01, ηp2 = 0.16; effect size = 0.96), coupled with significant modulation of posterior beta (13–30 Hz) activities (F1,32 = 7.66, p = 0.009, ηp2 = 0.19; effect size = 0.96). Across participant regression analyses indicated that those participants with greater increases in frontal theta, alpha and beta oscillations exhibited greater multitasking performance improvements. These results indicate frontal theta-tACS generates benefits on multitasking performance accompanied by widespread neuronal oscillatory changes, and suggests that future tACS studies with extended treatments are worth exploring as promising tools for cognitive enhancement.
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Affiliation(s)
- Wan-Yu Hsu
- Department of Neurology, University of California San Francisco, San Francisco, California, United States of America
- Neuroscape, University of California San Francisco, San Francisco, California, United States of America
| | - Theodore P. Zanto
- Department of Neurology, University of California San Francisco, San Francisco, California, United States of America
- Neuroscape, University of California San Francisco, San Francisco, California, United States of America
- * E-mail: (AG); (TZ)
| | - Martine R. van Schouwenburg
- Department of Neurology, University of California San Francisco, San Francisco, California, United States of America
| | - Adam Gazzaley
- Department of Neurology, University of California San Francisco, San Francisco, California, United States of America
- Neuroscape, University of California San Francisco, San Francisco, California, United States of America
- Department of Psychiatry, University of California San Francisco, San Francisco, California, United States of America
- Department of Physiology, University of California San Francisco, San Francisco, California, United States of America
- * E-mail: (AG); (TZ)
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Slotboom J, Hoppenbrouwers SS, Bouman YHA, In 't Hout W, Sergiou C, van der Stigchel S, Theeuwes J. Visual attention in violent offenders: Susceptibility to distraction. Psychiatry Res 2017; 251:281-286. [PMID: 28222312 DOI: 10.1016/j.psychres.2017.02.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/10/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
Impairments in executive functioning give rise to reduced control of behavior and impulses, and are therefore a risk factor for violence and criminal behavior. However, the contribution of specific underlying processes remains unclear. A crucial element of executive functioning, and essential for cognitive control and goal-directed behavior, is visual attention. To further elucidate the importance of attentional functioning in the general offender population, we employed an attentional capture task to measure visual attention. We expected offenders to have impaired visual attention, as revealed by increased attentional capture, compared to healthy controls. When comparing the performance of 62 offenders to 69 healthy community controls, we found our hypothesis to be partly confirmed. Offenders were more accurate overall, more accurate in the absence of distracting information, suggesting superior attention. In the presence of distracting information offenders were significantly less accurate compared to when no distracting information was present. Together, these findings indicate that violent offenders may have superior attention, yet worse control over attention. As such, violent offenders may have trouble adjusting to unexpected, irrelevant stimuli, which may relate to failures in self-regulation and inhibitory control.
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Affiliation(s)
- Jantine Slotboom
- Tactus, Addiction Care, Velperbuitensingel 6, 6828 CT Arnhem, The Netherlands.
| | - Sylco S Hoppenbrouwers
- Department of Clinical Psychology, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062PA Rotterdam, The Netherlands.
| | - Yvonne H A Bouman
- Stichting Transfore, Forensic Care, Pikeursbaan 21, 7411 GT Deventer, The Netherlands.
| | - Willem In 't Hout
- Forensic Psychiatric Centre Oostvaarderskliniek, Carl Barksweg 3, 1336 ZL Almere, The Netherlands.
| | - Carmen Sergiou
- Forensic Psychiatric Centre Oostvaarderskliniek, Carl Barksweg 3, 1336 ZL Almere, The Netherlands; Department of Cognitive Psychology Vrije Universiteit, Van der Boechorstraat 1, 1081 BT Amsterdam, The Netherlands.
| | - Stefan van der Stigchel
- Experimental Psychology, Utrecht University, Heidelberglaan 1, 3584 CS Utrecht, The Netherlands.
| | - Jan Theeuwes
- Department of Cognitive Psychology Vrije Universiteit, Van der Boechorstraat 1, 1081 BT Amsterdam, The Netherlands.
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Crane CA, Licata ML, Schlauch RC, Testa M, Easton CJ. The proximal effects of acute alcohol use on female aggression: A meta-analytic review of the experimental literature. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2017; 31:21-26. [PMID: 28080095 DOI: 10.1037/adb0000244] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Experimental research on alcohol-related aggression has focused largely upon male participants, providing only a limited understanding of the proximal effects of acute alcohol use on aggression among females extrapolated from the male literature. The current meta-analysis was undertaken to summarize the effects of alcohol, compared to placebo or no alcohol, on female aggression as observed across experimental investigations. A review of the literature yielded 11 articles and 12 effect sizes for further analysis. The overall effect size of alcohol on female aggression was small and reached statistical significance (d = .17, p = .02, 95% confidence interval [.03, .30]). Meta-analytic examination of the experimental literature indicated that alcohol is a significant factor in female aggression. The overall alcohol-aggression effect was smaller than has been observed among male samples. Additional research is required to evaluate the influence of other factors on alcohol-related aggressive responding among female participants. (PsycINFO Database Record
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Affiliation(s)
- Cory A Crane
- Department of Biomedical Sciences, Rochester Institute of Technology
| | | | | | - Maria Testa
- Research Institute on Addictions, University at Buffalo
| | - Caroline J Easton
- Department of Biomedical Sciences, Rochester Institute of Technology
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Zouraraki C, Tsaousis I, Karamaouna P, Karagiannopoulou L, Roussos P, Bitsios P, Giakoumaki SG. Associations of differential schizotypal dimensions with executive working memory: A moderated-mediation analysis. Compr Psychiatry 2016; 71:39-48. [PMID: 27621208 DOI: 10.1016/j.comppsych.2016.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND Increased schizotypal traits are observed in a percentage of the general population and in the schizophrenia-spectrum and have been associated with impairments in working memory. In this study we examined the effects of four schizotypal dimensions [Negative (NegS), Paranoid (ParS), Cognitive-Perceptual (CPS), Disorganized (DiS)] on executive working memory (EWM), as mediated by set-shifting, planning and control inhibition. We also examined whether these associations are moderated by family-history of psychosis. METHODS Our sample consisted of 110 unaffected first-degree relatives of schizophrenia-spectrum patients and 120 control individuals. Schizotypy was assessed with the Schizotypal Personality Questionnaire. Participants were also tested with the Letter-Number Sequencing, Wisconsin Card Sorting, Stroop Color-Word and Stockings of Cambridge tasks. The effects of set-shifting, control inhibition and planning on the relationship between schizotypy and EWM were examined with mediation analyses. Moderated-mediation analyses examined potential moderating effects of group membership (unaffected relative/community participant). RESULTS All mediators were significant in the relationship between NegS and EWM. The effects of ParS were mediated only by set-shifting and planning. Planning and control inhibition were the only significant mediators on the effects of CPS and DiS on EWM, respectively. The moderated-mediation analyses revealed that these findings apply only in the community group. CONCLUSIONS We found that the effects of different schizotypal dimensions on EWM are mediated by other cognitive processes in individuals without personal/family history of psychosis. This is probably due to either more severe impairments in the cognitive processes of the relatives or restrictions in our sample and study-design.
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Affiliation(s)
- Chrysoula Zouraraki
- Department of Psychology, University of Crete, Rethymno, 74100, Crete, Greece
| | - Ioannis Tsaousis
- Department of Psychology, University of Crete, Rethymno, 74100, Crete, Greece
| | - Penny Karamaouna
- Department of Psychology, University of Crete, Rethymno, 74100, Crete, Greece
| | | | - Panos Roussos
- Department of Psychiatry, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Panos Bitsios
- Department of Psychiatry and Behavioral Sciences, Faculty of Medicine, University of Crete, Heraklion, 71003, Crete, Greece
| | - Stella G Giakoumaki
- Department of Psychology, University of Crete, Rethymno, 74100, Crete, Greece.
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Cathodal tDCS improves task performance in participants high in Coldheartedness. Clin Neurophysiol 2016; 127:3102-3109. [DOI: 10.1016/j.clinph.2016.05.274] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 05/05/2016] [Accepted: 05/23/2016] [Indexed: 11/22/2022]
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Prefrontal White Matter Structure Mediates the Influence of GAD1 on Working Memory. Neuropsychopharmacology 2016; 41:2224-31. [PMID: 26822489 PMCID: PMC4946050 DOI: 10.1038/npp.2016.14] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 01/09/2016] [Accepted: 01/25/2016] [Indexed: 11/08/2022]
Abstract
The glutamic acid decarboxylase 1 (GAD1) gene is a major determinant of γ-aminobutyric acid (GABA), the most abundant inhibitory neurotransmitter modulating local neuronal circuitry. GABAergic dysfunction and expression of GAD1 have been implicated in the pathophysiology of schizophrenia, and in working memory impairment. We examined the influence of the functional GAD1 rs3749034 variant on white matter fractional anisotropy (FA), cortical thickness, and working memory performance in schizophrenia patients and healthy controls (N=197). Using transcranial magnetic stimulation with electroencephalography (TMS-EEG), we subsequently examined the effect of rs3749034 on long-interval cortical inhibition (LICI) in the dorsolateral prefrontal cortex (DLPFC) in schizophrenia patients and healthy controls (N=66). We found that the rs3749034 T-allele carrier risk group had lower voxel-wise FA in the prefrontal cortex region (PFWE-corrected<0.05) but not cortical thickness. Mixed-model regression revealed a significant effect on attentional processing and working memory across four performance measures (F1,182=11.5, P=8 × 10(-4)). FA in the prefrontal cortex was associated with digit-span performance. Voxel-wise mediation analysis revealed that the effect GAD1 on poorer digit-span performance statistically predicted the lower white matter FA (PFWE-corrected<0.05). In exploratory analysis, we found a prominent GAD1 genotype-by-diagnosis interaction on DLPFC LICI (F1,56=14.3, P=4.1 × 10(-4)). Our findings converge on variation in GAD1 gene predicting a susceptibility mechanism that affects white matter FA, GABAergic inhibitory neurotransmission in the DLPFC, and working memory performance. Furthermore, via voxel mediation of FA and TMS-EEG intervention, we provide evidence for a potentially causal mechanism through which aberrant DLPFC GABA signaling may contribute to working memory dysfunction.
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21
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Hill AT, Rogasch NC, Fitzgerald PB, Hoy KE. TMS-EEG: A window into the neurophysiological effects of transcranial electrical stimulation in non-motor brain regions. Neurosci Biobehav Rev 2016; 64:175-84. [DOI: 10.1016/j.neubiorev.2016.03.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 01/10/2023]
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Buoli M, Caldiroli A, Altamura AC. Psychiatric Conditions in Parkinson Disease: A Comparison With Classical Psychiatric Disorders. J Geriatr Psychiatry Neurol 2016; 29:72-91. [PMID: 26377851 DOI: 10.1177/0891988715606233] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Psychiatric conditions often complicate the outcome of patients affected by Parkinson disease (PD), but they differ from classical psychiatric disorders in terms of underlying biological mechanisms, clinical presentation, and treatment response. The purpose of the present review is to illustrate the biological and clinical aspects of psychiatric conditions associated with PD, with particular reference to the differences with respect to classical psychiatric disorders. A careful search of articles on main databases was performed in order to obtain a comprehensive review about the main psychiatric conditions associated with PD. A manual selection of the articles was then performed in order to consider only those articles that concerned with the topic of the review. Psychiatric conditions in patients with PD present substantial differences with respect to classical psychiatric disorders. Their clinical presentation does not align with the symptom profiles represented by Diagnostic and Statistical Manual for Mental Disorders and International Classification of Diseases. Furthermore, psychiatry treatment guidelines are of poor help in managing psychiatric symptoms of patients with PD. Specific diagnostic tools and treatment guidelines are needed to allow early diagnosis and adequate treatment of psychiatric conditions in comorbidity with PD.
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Affiliation(s)
- Massimiliano Buoli
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Alice Caldiroli
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Alfredo Carlo Altamura
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milan, Italy
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Neurocognitive Difficulties Underlying High Risk and Criminal Behaviour in FASD: Clinical Implications. FETAL ALCOHOL SPECTRUM DISORDERS IN ADULTS: ETHICAL AND LEGAL PERSPECTIVES 2016. [DOI: 10.1007/978-3-319-20866-4_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Yildirim BO, Derksen JJL. Mesocorticolimbic dopamine functioning in primary psychopathy: A source of within-group heterogeneity. Psychiatry Res 2015; 229:633-77. [PMID: 26277034 DOI: 10.1016/j.psychres.2015.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 04/08/2015] [Accepted: 07/05/2015] [Indexed: 01/17/2023]
Abstract
Despite similar emotional deficiencies, primary psychopathic individuals can be situated on a continuum that spans from controlled to disinhibited. The constructs on which primary psychopaths are found to diverge, such as self-control, cognitive flexibility, and executive functioning, are crucially regulated by dopamine (DA). As such, the goal of this review is to examine which specific alterations in the meso-cortico-limbic DA system and corresponding genes (e.g., TH, DAT, COMT, DRD2, DRD4) might bias development towards a more controlled or disinhibited expression of primary psychopathy. Based on empirical data, it is argued that primary psychopathy is generally related to a higher tonic and population activity of striatal DA neurons and lower levels of D2-type DA receptors in meso-cortico-limbic projections, which may boost motivational drive towards incentive-laden goals, dampen punishment sensitivity, and increase future reward-expectancy. However, increasingly higher levels of DA activity in the striatum (moderate versus pathological elevations), lower levels of DA functionality in the prefrontal cortex, and higher D1-to-D2-type receptor ratios in meso-cortico-limbic projections may lead to increasingly disinhibited and impetuous phenotypes of primary psychopathy. Finally, in order to provide a more coherent view on etiological mechanisms, we discuss interactions between DA and serotonin that are relevant for primary psychopathy.
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Affiliation(s)
- Bariş O Yildirim
- Department of Clinical Psychology, Radboud University Nijmegen, De Kluyskamp 1002, 6545 JD Nijmegen, The Netherlands.
| | - Jan J L Derksen
- Department of Clinical Psychology, Room: A.07.04B, Radboud University Nijmegen, Montessorilaan 3, 6525 HR Nijmegen, The Netherlands.
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Hsu WY, Zanto TP, Anguera JA, Lin YY, Gazzaley A. Delayed enhancement of multitasking performance: Effects of anodal transcranial direct current stimulation on the prefrontal cortex. Cortex 2015; 69:175-85. [PMID: 26073148 DOI: 10.1016/j.cortex.2015.05.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 01/17/2015] [Accepted: 05/12/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND The dorsolateral prefrontal cortex (DLPFC) has been proposed to play an important role in neural processes that underlie multitasking performance. However, this claim is underexplored in terms of direct causal evidence. OBJECTIVE The current study aimed to delineate the causal involvement of the DLPFC during multitasking by modulating neural activity with transcranial direct current stimulation (tDCS) prior to engagement in a demanding multitasking paradigm. METHODS The study is a single-blind, crossover, sham-controlled experiment. Anodal tDCS or sham tDCS was applied over left DLPFC in forty-one healthy young adults (aged 18-35 years) immediately before they engaged in a 3-D video game designed to assess multitasking performance. Participants were separated into three subgroups: real-sham (i.e., real tDCS in the first session, followed by sham tDCS in the second session 1 h later), sham-real (sham tDCS first session, real tDCS second session), and sham-sham (sham tDCS in both sessions). RESULTS The real-sham group showed enhanced multitasking performance and decreased multitasking cost during the second session, compared to first session, suggesting delayed cognitive benefits of tDCS. Interestingly, performance benefits were observed only for multitasking and not on a single-task version of the game. No significant changes were found between the first and second sessions for either the sham-real or the sham-sham groups. CONCLUSIONS These results suggest a causal role of left prefrontal cortex in facilitating the simultaneous performance of more than one task, or multitasking. Moreover, these findings reveal that anodal tDCS may have delayed benefits that reflect an enhanced rate of learning.
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Affiliation(s)
- Wan-Yu Hsu
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan; Laboratory of Neurophysiology, Taipei Veterans General Hospital, Taipei, Taiwan; Integrated Brain Research Laboratory, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Theodore P Zanto
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Joaquin A Anguera
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Yung-Yang Lin
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan; Department of Neurology, National Yang-Ming University, Taipei, Taiwan; Institute of Physiology, National Yang-Ming University, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Laboratory of Neurophysiology, Taipei Veterans General Hospital, Taipei, Taiwan; Integrated Brain Research Laboratory, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Adam Gazzaley
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA; Departments of Physiology and Psychiatry, University of California, San Francisco, San Francisco, California, USA.
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Cohn MD, Pape LE, Schmaal L, van den Brink W, van Wingen G, Vermeiren RRJM, Doreleijers TAH, Veltman DJ, Popma A. Differential relations between juvenile psychopathic traits and resting state network connectivity. Hum Brain Mapp 2015; 36:2396-405. [PMID: 25757797 DOI: 10.1002/hbm.22779] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 02/09/2015] [Accepted: 02/24/2015] [Indexed: 11/08/2022] Open
Abstract
Traditionally, neurobiological research on psychopathy has focused on categorical differences in adults. However, there is evidence that psychopathy is best described by a set of relatively independent personality dimensions, that is, callous-unemotional, grandiose-manipulative, and impulsive-irresponsible traits, which can be reliably detected in juveniles, allowing investigation of the neural mechanisms leading to psychopathy. Furthermore, complex psychiatric disorders like psychopathy are increasingly being conceptualized as disorders of brain networks. The intrinsic organization of the brain in such networks is reflected by coherent fluctuations in resting state networks (RSNs), but these have not been studied in sufficient detail in relation to juvenile psychopathic traits yet. The current study investigated the distinct associations of juvenile psychopathic traits dimensions with RSN connectivity. Resting-state functional MRI and independent component analysis were used to assess RSN connectivity in a large sample of adolescents (n = 130, mean age 17.8 years) from a childhood arrestee cohort. Associations between scores on each of the three psychopathic traits dimensions and connectivity within and between relevant RSNs were investigated. Callous-unemotional traits were related to aberrant connectivity patterns of the default mode network, which has been implicated in self-referential and moral processes. Impulsive-irresponsible traits were associated with altered connectivity patterns in the frontoparietal cognitive control networks. Grandiose-manipulative traits were not associated with altered connectivity patterns. These findings confirm the association between psychopathic traits and brain network connectivity, and considerably add to emerging evidence supporting neurobiological heterogeneity in the processes leading to psychopathy.
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Affiliation(s)
- Moran D Cohn
- Department of Child and Adolescent Psychiatry, VU University medical center Amsterdam, Duivendrecht, The Netherlands
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Rogasch NC, Daskalakis ZJ, Fitzgerald PB. Cortical inhibition of distinct mechanisms in the dorsolateral prefrontal cortex is related to working memory performance: A TMS–EEG study. Cortex 2015; 64:68-77. [DOI: 10.1016/j.cortex.2014.10.003] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 08/23/2014] [Accepted: 10/07/2014] [Indexed: 10/24/2022]
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Li W, Li Y, Yang W, Zhang Q, Wei D, Li W, Hitchman G, Qiu J. Brain structures and functional connectivity associated with individual differences in Internet tendency in healthy young adults. Neuropsychologia 2015; 70:134-44. [PMID: 25698637 DOI: 10.1016/j.neuropsychologia.2015.02.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 02/02/2015] [Accepted: 02/14/2015] [Indexed: 12/27/2022]
Abstract
Internet addiction (IA) incurs significant social and financial costs in the form of physical side-effects, academic and occupational impairment, and serious relationship problems. The majority of previous studies on Internet addiction disorders (IAD) have focused on structural and functional abnormalities, while few studies have simultaneously investigated the structural and functional brain alterations underlying individual differences in IA tendencies measured by questionnaires in a healthy sample. Here we combined structural (regional gray matter volume, rGMV) and functional (resting-state functional connectivity, rsFC) information to explore the neural mechanisms underlying IAT in a large sample of 260 healthy young adults. The results showed that IAT scores were significantly and positively correlated with rGMV in the right dorsolateral prefrontal cortex (DLPFC, one key node of the cognitive control network, CCN), which might reflect reduced functioning of inhibitory control. More interestingly, decreased anticorrelations between the right DLPFC and the medial prefrontal cortex/rostral anterior cingulate cortex (mPFC/rACC, one key node of the default mode network, DMN) were associated with higher IAT scores, which might be associated with reduced efficiency of the CCN and DMN (e.g., diminished cognitive control and self-monitoring). Furthermore, the Stroop interference effect was positively associated with the volume of the DLPFC and with the IA scores, as well as with the connectivity between DLPFC and mPFC, which further indicated that rGMV variations in the DLPFC and decreased anticonnections between the DLPFC and mPFC may reflect addiction-related reduced inhibitory control and cognitive efficiency. These findings suggest the combination of structural and functional information can provide a valuable basis for further understanding of the mechanisms and pathogenesis of IA.
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Affiliation(s)
- Weiwei Li
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China
| | - Yadan Li
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China
| | - Wenjing Yang
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China
| | - Qinglin Zhang
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China.
| | - Dongtao Wei
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China
| | - Wenfu Li
- School of Mental Health, Jining Medical University, Jining 272067, PR China
| | - Glenn Hitchman
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China
| | - Jiang Qiu
- Key Laboratory of Cogn ition and Personality (SWU), Ministry of Education, Chongqing 400715, PR China; School of Psychology, Southwest University, Chongqing 400715, PR China.
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Radhu N, Garcia Dominguez L, Farzan F, Richter MA, Semeralul MO, Chen R, Fitzgerald PB, Daskalakis ZJ. Evidence for inhibitory deficits in the prefrontal cortex in schizophrenia. Brain 2014; 138:483-97. [PMID: 25524710 DOI: 10.1093/brain/awu360] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abnormal gamma-aminobutyric acid inhibitory neurotransmission is a key pathophysiological mechanism underlying schizophrenia. Transcranial magnetic stimulation can be combined with electroencephalography to index long-interval cortical inhibition, a measure of GABAergic receptor-mediated inhibitory neurotransmission from the frontal and motor cortex. In previous studies we have reported that schizophrenia is associated with inhibitory deficits in the dorsolateral prefrontal cortex compared to healthy subjects and patients with bipolar disorder. The main objective of the current study was to replicate and extend these initial findings by evaluating long-interval cortical inhibition from the dorsolateral prefrontal cortex in patients with schizophrenia compared to patients with obsessive-compulsive disorder. A total of 111 participants were assessed: 38 patients with schizophrenia (average age: 35.71 years, 25 males, 13 females), 27 patients with obsessive-compulsive disorder (average age: 36.15 years, 11 males, 16 females) and 46 healthy subjects (average age: 33.63 years, 23 females, 23 males). Long-interval cortical inhibition was measured from the dorsolateral prefrontal cortex and motor cortex through combined transcranial magnetic stimulation and electroencephalography. In the dorsolateral prefrontal cortex, long-interval cortical inhibition was significantly reduced in patients with schizophrenia compared to healthy subjects (P = 0.004) and not significantly different between patients with obsessive-compulsive disorder and healthy subjects (P = 0.5445). Long-interval cortical inhibition deficits in the dorsolateral prefrontal cortex were also significantly greater in patients with schizophrenia compared to patients with obsessive-compulsive disorder (P = 0.0465). There were no significant differences in long-interval cortical inhibition across all three groups in the motor cortex. These results demonstrate that long-interval cortical inhibition deficits in the dorsolateral prefrontal cortex are specific to patients with schizophrenia and are not a generalized deficit that is shared by disorders of severe psychopathology.
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Affiliation(s)
- Natasha Radhu
- 1 Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Luis Garcia Dominguez
- 1 Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Faranak Farzan
- 1 Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Margaret A Richter
- 2 Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Mawahib O Semeralul
- 1 Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Robert Chen
- 3 Division of Neurology, Toronto Western Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Paul B Fitzgerald
- 4 Monash Alfred Psychiatry Research Centre, The Alfred and Monash University Central Clinical School, Victoria, Australia
| | - Zafiris J Daskalakis
- 1 Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
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Kong X, Wei D, Li W, Cun L, Xue S, Zhang Q, Qiu J. Neuroticism and extraversion mediate the association between loneliness and the dorsolateral prefrontal cortex. Exp Brain Res 2014; 233:157-64. [PMID: 25234401 DOI: 10.1007/s00221-014-4097-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 09/05/2014] [Indexed: 12/26/2022]
Abstract
Loneliness is an unpleasant and distressing feeling that a person experiences when he/she perceives that his/her social relationships are lacking in someway, either quantitatively or qualitatively; this can be linked to anxiety, depression, and suicide risk. Previous studies have found that certain personality traits (which are temporally stable and heritable) are predictors of loneliness. However, little empirical evidence is available on the brain structures associated with loneliness, as well as how personality traits impact the relationship between loneliness and brain structure. Thus, the current study used voxel-based morphometry to identify the brain structures underlying individual differences in loneliness (as measured by the UCLA Loneliness Scale) in a large sample, and then, applied multiple mediation analyses to explore the nature of the influence of personality traits on the relationship between loneliness and brain structure. The results showed that lonely individuals had greater regional gray matter volume in the left dorsolateral prefrontal cortex (DLPFC), which might reflect immature functioning in terms of emotional regulation. More importantly, we found that neuroticism and extraversion partially mediated the relationship between the left DLPFC and loneliness. In summary, through morphometric and multiple mediation analyses, this paper further validates the influence of both neuroticism and extraversion on loneliness.
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Affiliation(s)
- Xia Kong
- Key Laboratory of Cognition and Personality, SWU, Ministry of Education, Chongqing, 400715, People's Republic of China
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Andrews G, Halford GS, Shum DHK, Maujean A, Chappell M, Birney DP. Verbal learning and memory following stroke. Brain Inj 2014; 28:442-7. [DOI: 10.3109/02699052.2014.888758] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Glenda Andrews
- Behavioural Basis of Health Program, Griffith Health Institute, Griffith UniversityAustralia
- School of Applied Psychology, Griffith University, Gold Coast CampusAustralia
| | - Graeme S. Halford
- Behavioural Basis of Health Program, Griffith Health Institute, Griffith UniversityAustralia
- School of Applied Psychology, Griffith University, Mt Gravatt CampusAustralia
| | - David H. K. Shum
- Behavioural Basis of Health Program, Griffith Health Institute, Griffith UniversityAustralia
- School of Applied Psychology, Griffith University, Mt Gravatt CampusAustralia
| | - Annick Maujean
- Behavioural Basis of Health Program, Griffith Health Institute, Griffith UniversityAustralia
- Population and Social Health Research Program, Griffith Health Institute, Griffith UniversityAustralia
| | - Mark Chappell
- Behavioural Basis of Health Program, Griffith Health Institute, Griffith UniversityAustralia
- School of Applied Psychology, Griffith University, Mt Gravatt CampusAustralia
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Characterizing long interval cortical inhibition over the time-frequency domain. PLoS One 2014; 9:e92354. [PMID: 24642981 PMCID: PMC3958513 DOI: 10.1371/journal.pone.0092354] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/20/2014] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Long-interval cortical inhibition (LICI) can be recorded from motor and non-motor regions of the cortex through combined transcranial magnetic stimulation (TMS) with electroencephalography (EEG). This study aimed to evaluate additional dimensions of LICI characteristics over an extended time-frequency and spatial domain. This was done by introducing two alternative measures of LICI signal amplitude: the Discrete Fourier Transform (DFT) and the Hilbert transform (HT). Both approaches estimate signal amplitude not taking into account the phase. In both cases LICI was measured as the difference between the unconditioned and conditioned activity evoked by the test pulse. Finally, we evaluated whether the topographical patterns of single and paired responses differed beyond the expected variations in amplitude. MATERIALS AND METHODS LICI was delivered as single and paired pulses to the motor cortex (MC) and dorsolateral prefrontal cortex (DLPFC) in 33 healthy subjects with TMS-EEG. RESULTS Significant differences (p<0.0001) between the unconditioned and conditioned evoked activity were found for both the DLPFC and MC using both methods (i.e., DFT and HT) after correcting for multiple comparisons in the time-frequency domain. The influence of inhibition was found to be significantly larger in space and time than previously considered. Single and paired conditions differ in intensity, but also in their topographic pattern (i.e., the specific spatiotemporal configuration of active sources). CONCLUSION Similar results were found by both DFT and HT. The effect of inhibition across the cortex was also found to be complex and extended. In particular, it was found that LICI may be measured with high sensitivity in areas that were relatively distant from the stimulation site, which may have important practical applications. The analysis presented in this study overcomes some limitations of previous studies and could serve as a key reference for future studies examining TMS-indices of inhibition/excitation in healthy and diseased states.
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Lett TA, Voineskos AN, Kennedy JL, Levine B, Daskalakis ZJ. Treating working memory deficits in schizophrenia: a review of the neurobiology. Biol Psychiatry 2014; 75:361-70. [PMID: 24011822 DOI: 10.1016/j.biopsych.2013.07.026] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 07/22/2013] [Accepted: 07/22/2013] [Indexed: 01/06/2023]
Abstract
Cognitive deficits are a core feature of schizophrenia. Among these deficits, working memory impairment is considered a central cognitive impairment in schizophrenia. The prefrontal cortex, a region critical for working memory performance, has been demonstrated as a critical liability region in schizophrenia. As yet, there are no standardized treatment options for working memory deficits in schizophrenia. In this review, we summarize the neuronal basis for working memory impairment in schizophrenia, including dysfunction in prefrontal signaling pathways (e.g., γ-aminobutyric acid transmission) and neural network synchrony (e.g., gamma/theta oscillations). We discuss therapeutic strategies for working memory dysfunction such as pharmacological agents, cognitive remediation therapy, and repetitive transcranial magnetic stimulation. Despite the drawbacks of current approaches, the advances in neurobiological and translational treatment strategies suggest that clinical application of these methods will occur in the near future.
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Affiliation(s)
- Tristram A Lett
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, Toronto, Ontario, Canada
| | - Aristotle N Voineskos
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, Toronto, Ontario, Canada; Department of Psychiatry, Toronto, Ontario, Canada
| | - James L Kennedy
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, Toronto, Ontario, Canada; Department of Psychiatry, Toronto, Ontario, Canada
| | - Brian Levine
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada; Rotman Research Institute, Baycrest Centre Toronto, Toronto, Ontario, Canada
| | - Zafiris J Daskalakis
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, Toronto, Ontario, Canada; Department of Psychiatry, Toronto, Ontario, Canada.
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Hoppenbrouwers SS, De Jesus DR, Sun Y, Stirpe T, Hofman D, McMaster J, Hughes G, Daskalakis ZJ, Schutter DJ. Abnormal interhemispheric connectivity in male psychopathic offenders. J Psychiatry Neurosci 2014; 39:22-30. [PMID: 23937798 PMCID: PMC3868661 DOI: 10.1503/jpn.120046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Psychopathic offenders inevitably violate interpersonal norms and frequently resort to aggressive and criminal behaviour. The affective and cognitive deficits underlying these behaviours have been linked to abnormalities in functional interhemispheric connectivity. However, direct neurophysiological evidence for dysfunctional connectivity in psychopathic offenders is lacking. METHODS We used transcranial magnetic stimulation combined with electroencephalography to examine interhemispheric connectivity in the dorsolateral and motor cortex in a sample of psychopathic offenders and healthy controls. We also measured intracortical inhibition and facilitation over the left and right motor cortex to investigate the effects of local cortical processes on interhemispheric connectivity. RESULTS We enrolled 17 psychopathic offenders and 14 controls in our study. Global abnormalities in right to left functional connectivity were observed in psychopathic offenders compared with controls. Furthermore, in contrast to controls, psychopathic offenders showed increased intracortical inhibition in the right, but not the left, hemisphere. LIMITATIONS The relatively small sample size limited the sensitivity to show that the abnormalities in interhemispheric connectivity were specifically related to the dorsolateral prefrontal cortex in psychopathic offenders. CONCLUSION To our knowledge, this study provides the first neurophysiological evidence for abnormal interhemispheric connectivity in psychopathic offenders and may further our understanding of the disruptive antisocial behaviour of these offenders.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Dennis J.L.G. Schutter
- Correspondence to: D.J.L.G. Schutter, Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Domplein 29, 3512 JE Utrecht, Netherlands;
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Schutter DJLG, Harmon-Jones E. The corpus callosum: a commissural road to anger and aggression. Neurosci Biobehav Rev 2013; 37:2481-8. [PMID: 23911937 DOI: 10.1016/j.neubiorev.2013.07.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 06/14/2013] [Accepted: 07/20/2013] [Indexed: 10/26/2022]
Abstract
According to the frontal cortical asymmetry model of motivational direction, anger and aggression are associated with approach motivation and a dominant left frontal hemisphere. Functional interhemispheric connectivity has been proposed as a possible mechanism that could explain the frontal cortical asymmetry of anger and aggression. Reciprocal interactions between the cerebral hemispheres are primarily established by the corpus callosum which is the largest white matter bundle of the human brain. Experimental brain research has now provided evidence for callosal involvement in approach-motivation. In line with the frontal cortical asymmetry model of motivational direction, differences in the direction of interhemispheric signal transfer are proposed to contribute to anger and aggression. It is concluded that the human corpus callosum provides a possible neuroanatomical correlate for frontal cortical asymmetries and that interhemispheric signal transfer plays a role in the emergence of approach-related motivation and behaviour.
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Affiliation(s)
- Dennis J L G Schutter
- Department of Psychology, Utrecht University, Utrecht, The Netherlands; School of Psychology, The University of New South Wales, Sydney, NSW, Australia.
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Giambattistelli F, Tomasevic L, Pellegrino G, Porcaro C, Melgari JM, Rossini PM, Tecchio F. The spontaneous fluctuation of the excitability of a single node modulates the internodes connectivity: a TMS-EEG study. Hum Brain Mapp 2013; 35:1740-9. [PMID: 23670997 DOI: 10.1002/hbm.22288] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 02/15/2013] [Accepted: 02/18/2013] [Indexed: 11/07/2022] Open
Abstract
Brain effective connectivity can be tracked by cerebral recruitments evoked by transcranial magnetic stimulation (TMS), as measured by simultaneous electroencephalography (TMS-EEG). When TMS is targeting the primary motor area, motor evoked potentials (MEPs) can be collected from the "target" muscles. The aim of this study was to measure whether or not effective brain connectivity changes with the excitability level of the corticospinal motor pathway (CSMP) as parameterized by MEP amplitude. After averaging two subgroups of EEG-evoked responses corresponding to high and low MEP amplitudes, we calculated the individual differences between them and submitted the grand average to sLORETA algorithm obtaining localized regions of interest (RoIs). Statistical differences of RoI recruitment strength between low and high CSMP excitation was assessed in single subjects. Preceding the feedback arrival, neural recruitment for stronger CSMP activation were weaker at 6-10 ms of homotopic sensorimotor areas BA3/4/5 of the right nonstimulated hemisphere (trend), weaker at 18-25 ms of left parietal BA2/3/40, and stronger at 26-32 ms of bilateral frontal motor areas BA6/8. The proposed method enables the tracking of brain network connectivity during stimulation of one node by measuring the strength of the connected recruited node activations. Spontaneous increases of the excitation of the node originating the transmission within the hand control network gave rise to dynamic recruitment patterns with opposite behaviors, weaker in homotopic and parietal circuits, stronger in frontal ones. The effective connectivity within bilateral circuits orchestrating hand control appeared dynamically modulated in time even in resting state as probed by TMS.
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