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Association of impaired reality processing with psychotic symptoms in schizophrenia

Authors
 Jung Suk Lee  ;  Ji Won Chun  ;  Sang-hoon Lee  ;  Dong-Il Kang  ;  Jae-Jin Kim 
Citation
 PSYCHIATRY RESEARCH-NEUROIMAGING, Vol.210(3) : 721-728, 2013 
Journal Title
 PSYCHIATRY RESEARCH-NEUROIMAGING 
ISSN
 0925-4927 
Issue Date
2013
MeSH
Adult ; Case-Control Studies ; Delusions/diagnosis* ; Delusions/psychology ; Discrimination (Psychology)* ; Female ; Hallucinations/diagnosis ; Hallucinations/psychology* ; Humans ; Imagination/physiology ; Male ; Psychiatric Status Rating Scales/statistics & numerical data ; Psychotic Disorders/diagnosis* ; Psychotic Disorders/psychology ; Reality Testing ; Schizophrenia/complications* ; Schizophrenic Psychology
Keywords
Reality evaluation ; Recognition ; Discriminability ; Schizophrenia ; Hallucinations ; Delusions
Abstract
Reality evaluation (i.e., the discrimination of things existing outside of oneself and figments of others' imagination) may be impaired in patients with schizophrenia, and impairment in reality evaluation may be related to psychotic symptoms such as hallucinations and delusions. In this study, we investigated the nature of impairment of reality processing and its relationship with hallucinations and delusions in schizophrenia. Twenty-six patients with schizophrenia and 25 healthy controls completed the reality evaluation task, in which subjects judged whether scenes in a series of drawings were real or unreal and whether they were familiar or novel. The patient group exhibited significantly lower accuracy in reality evaluation than the control group, and lower accuracy in the patient group was related to more severe hallucinations and delusions. These findings provide preliminary evidence that impaired reality evaluation is related to the formation or maintenance of hallucinations and delusions in schizophrenia.
Full Text
http://www.sciencedirect.com/science/article/pii/S0165178113004356
DOI
10.1016/j.psychres.2013.07.035
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jae Jin(김재진) ORCID logo https://orcid.org/0000-0002-1395-4562
Lee, Jung Suk(이정석)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/89087
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