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Akgül Ö, Fide E, Özel F, Alptekin K, Bora E, Akdede BB, Yener G. Enhanced Punishment Responses in Patients With Schizophrenia: An Event-Related Potential Study. Clin EEG Neurosci 2024; 55:219-229. [PMID: 37563908 DOI: 10.1177/15500594231190966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
It is well known that abnormal reward processing is a characteristic feature of various psychopathologies including schizophrenia. Reduced reward anticipation has been suggested as a core symptom of schizophrenia. The Monetary Incentive Delay Task (MID) is frequently used to detect reward anticipation. The present study aims to evaluate the amplitude and latency of event-related potential (ERP) P300 in patients with schizophrenia (SCH) compared to healthy controls during the MID task. Twenty patients with SCH and 21 demographically matched healthy controls (HC) were included in the study. ERP P300 amplitude and latency values were compared between groups using an MID task in which reward and loss cues were presented. Relations between P300 and clinical facets were investigated in the patient group. SCH group had enhanced mean P300 amplitudes and delayed peak latency in the punishment condition compared with HC. These higher responses were also associated with negative symptoms. SCH group showed altered reward processing as being more sensitive to loss of reward conditions as firstly evidenced by electrophysiological methods, possibly due to abnormality in various systems including social withdrawal, social defeat, and behavioral inhibition system.
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Affiliation(s)
- Özge Akgül
- Faculty of Arts and Sciences, Department of Psychology, Izmir Democracy University, Izmir, Turkey
| | - Ezgi Fide
- Department of Neurosciences, Dokuz Eylül University, Izmir, Turkey
| | - Fatih Özel
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
| | - Köksal Alptekin
- Department of Neurosciences, Dokuz Eylül University, Izmir, Turkey
- Faculty of Medicine, Department of Psychiatry, Dokuz Eylül University, Izmir, Turkey
| | - Emre Bora
- Department of Neurosciences, Dokuz Eylül University, Izmir, Turkey
- Faculty of Medicine, Department of Psychiatry, Dokuz Eylül University, Izmir, Turkey
| | - Berna Binnur Akdede
- Department of Neurosciences, Dokuz Eylül University, Izmir, Turkey
- Faculty of Medicine, Department of Psychiatry, Dokuz Eylül University, Izmir, Turkey
| | - Görsev Yener
- Brain Dynamics Multidisciplinary Research Center, Dokuz Eylül University, Izmir, Turkey
- Faculty of Medicine, Department of Neurology, Izmir University of Economics, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
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Akgül Ö, Fide E, Özel F, Alptekin K, Bora E, Akdede BB, Yener G. Reduced Reward Processing in Schizophrenia: A Comprehensive EEG Event-Related Oscillation Study. Brain Topogr 2024; 37:126-137. [PMID: 38078985 DOI: 10.1007/s10548-023-01021-3] [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: 06/19/2023] [Accepted: 11/03/2023] [Indexed: 01/07/2024]
Abstract
It is well known that abnormal reward processing is a characteristic feature of various psychopathologies including schizophrenia (SZ). Reduced reward anticipation has been suggested as a core symptom of SZ. The present study aims to evaluate the event-related oscillations (EROs) delta, theta, alpha, beta, and gamma in patients with SZ during the Monetary Incentive Delay (MID) task, which elicits the neural activity of reward processing. Twenty-one patients with SZ and twenty-two demographically matched healthy controls were included in the study. EROs were compared between groups and correlation analyses were conducted to determine a possible relationship between clinical scores and ERO values. Compared with healthy controls, the SZ group had reduced (1) delta and theta amplitudes in the reward condition (2) total beta and non-incentive cue-related beta amplitudes, and (3) incentive cue-related frontal gamma amplitudes. These reductions can be interpreted as impaired dopaminergic neurotransmission and disrupted cognitive functioning in the reward processing of SZ. In contrast, SZ patients showed higher incentive cue-related theta and occipital gamma amplitudes compared to controls. These increments may reflect negative symptoms in SZ. Moreover, theta amplitudes showed a negative correlation with Calgary Depression Scale for Schizophrenia scores and a positive correlation with attentional impulsivity. This is the first study showing the impairments of SZ patients in EROs from delta to gamma frequency bands compared with healthy controls during reward anticipation. Being the first comprehensive study, our results can be interpreted as providing evidence for disrupted brain dynamics in the reward processing of SZ studied by EROs. It may become possible to help patients' wellness by improving our understanding of reward processing in schizophrenia and developing innovative rehabilitation treatments based on these findings.
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Affiliation(s)
- Özge Akgül
- Department of Psychology, Faculty of Arts and Sciences, İzmir Democracy University, Izmir, Turkey
| | - Ezgi Fide
- Department of Neurosciences, Dokuz Eylul University, Izmir, Turkey
| | - Fatih Özel
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
| | - Köksal Alptekin
- Department of Neurosciences, Dokuz Eylul University, Izmir, Turkey
- Department of Psychiatry, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Emre Bora
- Department of Neurosciences, Dokuz Eylul University, Izmir, Turkey
- Department of Psychiatry, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Berna Binnur Akdede
- Department of Neurosciences, Dokuz Eylul University, Izmir, Turkey
- Department of Psychiatry, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Görsev Yener
- Department of Neurosciences, Dokuz Eylul University, Izmir, Turkey.
- Department of Neurology, Faculty of Medicine, İzmir University of Economics, Izmir, Turkey.
- Izmir International Biomedicine and Genome Institute, Izmir, Turkey.
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Gunn CK, Donahue JJ. Intra- and interpersonal emotion regulation strategies and Schizotypic personality characteristics. JOURNAL OF PSYCHOPATHOLOGY AND BEHAVIORAL ASSESSMENT 2022. [DOI: 10.1007/s10862-022-09987-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Yang X, Guo Y, Harrison P, Liu X. Social and general anhedonia in adolescents: Stability and associations with other symptoms. J Adolesc 2022; 94:380-389. [DOI: 10.1002/jad.12029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 11/16/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Xinhua Yang
- The Affiliated Kangning Hospital Wenzhou Medical University Wenzhou China
- Centre for Affective Disorders, Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience King's College London London UK
| | - Yuqi Guo
- Department of Psychology, Institute of Education, Rural Children and Adolescents Research Center for Health Promotion Hunan Agricultural University Changsha China
| | - Phillippa Harrison
- Centre for Affective Disorders, Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience King's College London London UK
| | - Xiaoqun Liu
- Xiangya School of Public Health Central South University Changsha China
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Wu Q, He J, Fang S, Zhang P, Luo X, Zhang J, Xiong Y, Luo F, Wang X, Yao S, Wang X. A novel construct of anhedonia revealed in a Chinese sample via the Revised Physical and Social Anhedonia Scales. BMC Psychiatry 2020; 20:529. [PMID: 33167901 PMCID: PMC7650163 DOI: 10.1186/s12888-020-02900-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 09/28/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Anhedonia is a core clinical symptom of mental disorders. The Revised Physical Anhedonia Scale (RPAS) and the Revised Social Anhedonia Scale (RSAS) have been applied in clinical and non-clinical samples since 1980s. However, the construct of a unified RPAS&RSAS for comprehensive measurement of anhedonia has never been explored. Therefore, the purpose of our study was to examine the factor structure of the unified RPAS&RSAS among undergraduates and clinical patients. METHODS A total of 3435 undergraduates from two universities and 294 clinical patients with mental disorders had completed the Chinese version of the RPAS and the RSAS. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were each conducted to reveal the constructs of the RPAS and the RSAS. CFA was used to evaluate first- and second-order models for the unified RPAS&RSAS in undergraduates and clinical patients. The internal consistency and test-retest reliability of the RPAS and the RSAS were also evaluated. RESULTS EFA and CFA indicated 2-factor structures for RPAS and RSAS, with the factors being defined as anticipatory anhedonia and consummatory anhedonia. The second-order model of the unified RPAS&RSAS in the undergraduates and clinical patients both had satisfactory fit index values (Undergraduate sample: CFI = 0.901, TLI = 0.899, RMSEA = 0.055, SRMR = 0.086; Clinical sample: CFI = 0.922, TLI = 0.911, RMSEA = 0.052, SRMR = 0.078). The psychometric robustness of the RPAS&RSAS were confirmed by high internal consistency and test-retest reliability values. CONCLUSIONS The unified RPAS&RSAS with a second-order structure was confirmed in both undergraduates and clinical samples in Chinese. The construct of anhedonia was refreshed as covering physical and social domains, and each of them includes both anticipatory and consummatory components.
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Affiliation(s)
- Qiongqiong Wu
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China
| | - Jiayue He
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China
| | - Shulin Fang
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China
| | - Panwen Zhang
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China
| | - Xingwei Luo
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China
| | - Jianghua Zhang
- grid.216417.70000 0001 0379 7164Student Affairs Department, Central South University, Changsha, 410083 China
| | - Yan Xiong
- grid.216417.70000 0001 0379 7164Student Affairs Department, Central South University, Changsha, 410083 China
| | - Fusheng Luo
- grid.440660.00000 0004 1761 0083Student Affairs Department, Central South University of Forestry and Technology, Changsha, 410004 China
| | - Xiaosheng Wang
- grid.216417.70000 0001 0379 7164Department of Human Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, 410013 China
| | - Shuqiao Yao
- grid.216417.70000 0001 0379 7164Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011 China ,grid.216417.70000 0001 0379 7164Medical Psychological Institute of Central South University, Changsha, 410011 China ,National Clinical Research Center for Mental Disorders, Changsha, 410011 China
| | - Xiang Wang
- Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, 410011, China. .,Medical Psychological Institute of Central South University, Changsha, 410011, China. .,National Clinical Research Center for Mental Disorders, Changsha, 410011, China.
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Barkus E, Badcock JC. A Transdiagnostic Perspective on Social Anhedonia. Front Psychiatry 2019; 10:216. [PMID: 31105596 PMCID: PMC6491888 DOI: 10.3389/fpsyt.2019.00216] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/25/2019] [Indexed: 12/28/2022] Open
Abstract
Humans are highly social beings, yet people with social anhedonia experience reduced interest in or reward from social situations. Social anhedonia is a key facet of schizotypal personality, an important symptom of schizophrenia, and increasingly recognized as an important feature in a range of other psychological disorders. However, to date, there has been little examination of the similarities and differences in social anhedonia across diagnostic borders. Here, our goal was to conduct a selective review of social anhedonia in different psychological and life course contexts, including the psychosis continuum, depressive disorder, posttraumatic stress disorder, eating disorders, and autism spectrum disorders, along with developmental and neurobiological factors. Current evidence suggests that the nature and expression of social anhedonia vary across psychological disorders with some groups showing deficient learning about, enjoyment from, and anticipation of the pleasurable aspects of social interactions, while for others, some of these components appear to remain intact. However, study designs and methodologies are diverse, the roles of developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare-which prevents a more nuanced understanding of the underlying mechanisms involved. Future studies, parsing the wanting, liking, and learning components of social reward, will help to fill gaps in the current knowledge base. Consistent across disorders is diminished pleasure from social situations, subsequent withdrawal, and poorer social functioning in those who express social anhedonia. Nonetheless, feelings of loneliness often remain, which suggests the need for social connection is not entirely absent. Adolescence is a particularly important period of social and neural development and may provide a valuable window on the developmental origins of social anhedonia. Adaptive social functioning is key to recovery from mental health disorders; therefore, understanding the intricacies of social anhedonia will help to inform treatment and prevention strategies for a range of diagnostic categories.
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Affiliation(s)
- Emma Barkus
- Cognitive Basis of Atypical Behaviour Initiative (CBABi), School of Psychology, University of Wollongong, Wollongong, NSW, Australia
| | - Johanna C. Badcock
- Centre for Clinical Research in Neuropsychiatry (CCRN), Division of Psychiatry, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, WA, Australia
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Schizophrenia spectrum personality disorders in psychometrically identified schizotypes at two-year follow-up. Psychiatry Res 2017; 252:289-295. [PMID: 28288440 DOI: 10.1016/j.psychres.2017.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/05/2016] [Accepted: 03/06/2017] [Indexed: 11/21/2022]
Abstract
Earlier (Bolinskey et al., 2015), we reported that psychometrically identified schizotypes displayed greater symptom levels and higher incidences of schizophrenia spectrum (schizotypal, schizoid, paranoid, and avoidant) personality disorders (PDs). In this study, 49 schizotypes and 39 matched controls participated in follow-up assessments after two years. Participants were previously identified as schizotypes or controls based on scores on the Chapman Psychosis Proneness Scales (CPPS), and were interviewed at baseline and follow-up with the Personality Disorder Interview for DSM-IV (PDI-IV). At follow-up, schizotypes displayed significantly higher symptom levels compared to controls, with medium to large effects, and appeared to meet criteria for diagnosis of each PD more often than controls, although significant differences were only observed for paranoid PD. Overall, schizotypes were more likely to have met criteria for a diagnosis at either baseline or follow-up. Finally, we observed a widening disparity over time between schizotypes and controls in avoidant and schizoid PDs. These results suggest that schizophrenia spectrum PDs, as well as subthreshold symptoms of these disorders, can represent a greater liability for schizophrenia in individuals identified as at-risk on the basis of psychometric means only. Furthermore, these findings demonstrate that such differences persist, and in some cases increase, over time.
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Smith EA, Bolinskey PK, Guidi JP, Myers KR, Schuder KM, James AV, Hudak DV, Sheets V. Further examination of the factor structure of the Chapman Psychosis Proneness Scales (CPPS). Psychiatry Res 2016; 238:257-263. [PMID: 27086242 DOI: 10.1016/j.psychres.2016.02.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 02/17/2016] [Accepted: 02/22/2016] [Indexed: 11/18/2022]
Abstract
Results of recent analyses of the Chapman Psychosis Proneness Scales (CPPS) have been inconsistent with regard to their factor structure. This inconsistency has involved whether the Revised Social Anhedonia Scale (SocAnh) reflects only the negative or both the negative and positive dimensions of schizotypy, along with the degree of correlation between these two dimensions. In the present study, confirmatory factor analysis was used to compare models created by Chan et al. and Kwapil et al.; a third model was constructed based on adjustments to these prior models and consideration of the schizotypy construct. Following Kwapil et al., our model allowed for bi-loading of SocAnh scale, but eliminated the correlation between positive and negative factors. Although fitness for each of the previously offered models was adequate, RMSEA and chi-square indicators suggested ideal fit for the model proposed by Kwapil and our new model, which redirects variance thought to be shared among the positive and negative dimensions to its specific source, SocAnh. The implications of these competing models with regard to our conceptualization of schizotypy are addressed. It is suggested that the cross loading of SocAnh reflects the notion of social anhedonia as the core of schizotypic personality organization.
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Affiliation(s)
- Elizabeth A Smith
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - P Kevin Bolinskey
- Department of Psychology, Indiana State University, Terre Haute, IN, USA.
| | - Janice P Guidi
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - Kevin R Myers
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - Kelly M Schuder
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - Alison V James
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - Daniel V Hudak
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
| | - Virgil Sheets
- Department of Psychology, Indiana State University, Terre Haute, IN, USA
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