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Theory of mind deficits partly mediate impaired social decision-making in schizophrenia
Yang,Liuqing1,2,3; Li,Peifu4; Mao,Haiying4; Wang,Huiling4; Shu,Chang4; Bliksted,Vibeke5,6; Zhou,Yuan1,2
Source PublicationBMC Psychiatry
AbstractAbstractBackgroundUsing paradigms from game theory, researchers have reported abnormal decision-making in social context in patients with schizophrenia. However, less is known about the underpinnings of the impairment. This study aimed to test whether theory of mind (ToM) deficits and/or neurocognitive dysfunctions mediate impaired social decision-making in patients with schizophrenia.MethodsWe compared thirty-five patients with schizophrenia to thirty-eight matched healthy controls with regard to social decision-making using the mini Ultimatum Game (mini UG), a paradigm from game theory. Additionally, we assessed ToM using the Theory of Mind Picture Stories Task, a mental state attribution task, and assessed neurocognition using the Brief Assessment of Cognition in Schizophrenia. Mediation analyses were performed on the data.ResultsIn contrast to the behavioral pattern of healthy controls in the mini UG, the patients with schizophrenia significantly accepted more disadvantageous offers and rejected?more advantageous offers, and showed reduced sensitivity to the fairness-related context changes in the mini UG. Impaired ToM and neurocognition were also found in the patients. Mediation analyses indicated that ToM but not neurocognition partially mediated the group differences on the disadvantageous and advantageous offers in the mini UG.ConclusionsPatients with schizophrenia exhibited impaired social decision-making. This impairment can be partly explained by their ToM deficits rather than neurocognitive deficits. However, the exact nature of the ToM deficits that mediate impaired social decision-making needs to be identified in future.
KeywordSocial decision-making Theory of mind Neurocognition Schizophrenia Mini ultimatum game
WOS IDBMC:10.1186/s12888-017-1313-3
PublisherBioMed Central
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Document Type期刊论文
Corresponding AuthorZhou,Yuan
Affiliation1.CAS Key Laboratory of Behavioral Science, Institute of Psychology
2.University of Chinese Academy of Sciences; Department of Psychology
3.Sino-Danish Center for Education and Research
4.Renmin Hospital of Wuhan University; Department of Psychiatry
5.Aarhus University Hospital Risskov, Psychosis Research Department
6.Aarhus University, Interacting Minds Centre
Recommended Citation
GB/T 7714
Yang,Liuqing,Li,Peifu,Mao,Haiying,et al. Theory of mind deficits partly mediate impaired social decision-making in schizophrenia[J]. BMC Psychiatry,2017,17(1).
APA Yang,Liuqing.,Li,Peifu.,Mao,Haiying.,Wang,Huiling.,Shu,Chang.,...&Zhou,Yuan.(2017).Theory of mind deficits partly mediate impaired social decision-making in schizophrenia.BMC Psychiatry,17(1).
MLA Yang,Liuqing,et al."Theory of mind deficits partly mediate impaired social decision-making in schizophrenia".BMC Psychiatry 17.1(2017).
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