title: Individuals with psychometric schizotypy show similar social but not physical anhedonia to patients with schizophrenia.
abstract: Very few studies have examined physical and social anhedonia across the spectrum of schizophrenia. In the present study, we recruited three groups of participants (n=84 in each group): patients with schizophrenia, schizotypy and non-schizotypy as assessed by the Schizotypal Personality Questionnaire (SPQ). All participants completed the self-reported trait anhedonia scales (the Revised Physical Anhedonia Scale and the Social Anhedonia Scale). The clinical symptoms of schizophrenia patients were assessed using the Positive and Negative Syndrome Scale (PANSS) and the Scale for Assessment of Negative Symptoms (SANS). We found that the three groups differed in both physical and social anhedonia. The schizotypy group reported higher levels of physical anhedonia than the non-schizotypy group, and the patient group reported higher levels of physical anhedonia than the schizotypy group. For social anhedonia, the non-schizotypy group differed significantly from both the schizotypy and the patient group, while no significant difference was found between the last two groups. Our findings show that individuals with schizotypy exhibits similar social but not physical anhedonia compared with patients with schizophrenia, which further suggests that decreased pleasure experiences in the social environment may be a valuable target for identification and early intervention in high-risk populations.
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China; Department of General Adult Psychiatry, Castle Peak Hospital, Hong Kong Special Administrative Region, China.
authors.forename: Simon S Y
authors.initials: SS
authors.lastname: Lui
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing, China.
authors.forename: Lai-quan
authors.initials: LQ
authors.lastname: Zou
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhao
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Yan
authors.affiliation: Shantou Mental Health Centre, Shantou, China.
authors.forename: Xiao-hong
authors.initials: XH
authors.lastname: Hong
authors.affiliation: Beijing Huilongguan Hospital, Beijing, China.
authors.forename: Shu-ping
authors.initials: SP
authors.lastname: Tan
authors.affiliation: Department of General Adult Psychiatry, Castle Peak Hospital, Hong Kong Special Administrative Region, China.
authors.forename: Eric F C
authors.initials: EF
authors.lastname: Cheung
authors.affiliation: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing 100101, China. Electronic address: rckchan@psych.ac.cn.
authors.forename: Raymond C K
authors.initials: RC
authors.lastname: Chan
mesh_terms: D000293:Adolescent; D000328:Adult; D059445:Anhedonia; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D010551:Personality; D010555:Personality Inventory; D011594:Psychometrics; D012559:Schizophrenia / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D012569:Schizotypal Personality Disorder / Q000503:physiopathology* / Q000523:psychology*; D057566:Self Report; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Anhedonia; Schizophrenia spectrum; Schizotypy; Symptom