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Greater impairment in negative emotion evaluation ability in patients with paranoid schizophrenia

Authors
 Suk Kyoon An  ;  Eun Lee  ;  Jae-jin Kim  ;  Kee Namkoong  ;  Jee In Kang  ;  Jong Hee Jeon  ;  Jeong Ho Seok  ;  Sung Hwan Choi 
Citation
 YONSEI MEDICAL JOURNAL, Vol.47(3) : 343-353, 2006 
Journal Title
 YONSEI MEDICAL JOURNAL 
ISSN
 0513-5796 
Issue Date
2006
MeSH
Adult ; Affect* ; Emotions* ; Female ; Humans ; Male ; Mental Processes ; Schizophrenia, Paranoid/physiopathology* ; Schizophrenia, Paranoid/psychology* ; Schizophrenic Psychology* ; Visual Perception
Keywords
Schizophrenia ; positive emotion ; negative emotion
Abstract
To explore whether or not patients with schizophrenia display a more profound impairment of negative emotion processing, we assessed the implicit evaluation of positive and negative emotional stimuli. Twenty patients with schizophrenia (9 paranoid, 11 non-paranoid) and 22 normal controls were instructed to classify emotional pictures according to the intrinsic valence if the pictures were black and white. If the stimuli were color-filtered, participants were instructed to press the positive/negative response key according to the extrinsic valence (assigned valence of color). The error rates of the color-filtered stimuli were used as dependent measures. Normal controls made more errors on trials of the positive pictures when the correct response was the negative response key than when the correct response was the positive response key. The reverse was true on trials of the negative pictures. Patients with schizophrenia, especially paranoid schizophrenia, committed more errors in trials of the positive pictures when the correct response key was the negative response key. However, the reverse was not true on trials of the negative pictures. These findings suggest that patients with paranoid schizophrenia might suffer from an impaired ability to evaluate negative emotions and have a loosening of association within their negative emotional networks.
Files in This Item:
T200600901.pdf Download
DOI
10.3349/ymj.2006.47.3.343
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
Namkoong, Kee(남궁기) ORCID logo https://orcid.org/0000-0003-1400-8057
An, Suk Kyoon(안석균) ORCID logo https://orcid.org/0000-0003-4576-6184
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/109852
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