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Inflexible eye fixation pattern in schizophrenia affecting decision-making on daily life

Authors
 Soo-Jeong Kim  ;  Yeon-Ju Hong  ;  Min-Woo Kim  ;  Young-Hoon Jung  ;  Sa-Rang Min  ;  Jae-Jin Kim 
Citation
 PSYCHIATRY RESEARCH, Vol.274 : 414-420, 2019 
Journal Title
 PSYCHIATRY RESEARCH 
ISSN
 0165-1781 
Issue Date
2019
MeSH
Adult ; Attention ; Decision Making* ; Female ; Fixation, Ocular/physiology* ; Humans ; Intention ; Male ; Middle Aged ; Schizophrenia/physiopathology* ; Schizophrenic Psychology*
Keywords
Apparel purchase ; Decision-making ; Eye tracking ; Fixation time ; Schizophrenia
Abstract
Patients with schizophrenia have difficulties in real life due to impairment in ability to make decisions. The purpose of this study was to elucidate the relationship between impaired decision-making processes with real life stimuli and abnormal eye gaze patterns in patients with schizophrenia. Each of 23 patients with schizophrenia and 23 healthy controls performed an apparel purchase decision task including the influencing factors such as preference, fit, and price, during which the eye gaze was traced. Fixation time and fixation time ratio on areas of interest, which were set for participant faces and clothing, were compared between the two groups. Compared with controls, patients made purchase decisions at a higher rate and showed significantly shorter fixation time on clothing in the preference, fit, and price phases and on faces in the purchase phase. Fixation time ratio of face over clothing did not change over purchase decisions in patients, whereas controls showed significantly higher fixation time ratio in not-to-buy decisions than in to-buy decisions. These results suggest that aberrant decision-making behaviors in patients with schizophrenia are closely related to inflexible visual information gathering patterns because they apportion the same amount of attention to objects regardless of purchase intention.
Full Text
https://www.sciencedirect.com/science/article/pii/S0165178118316160
DOI
10.1016/j.psychres.2019.02.063
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Soo-Jeong(김수정) ORCID logo https://orcid.org/0000-0001-9065-7492
Kim, Jae Jin(김재진) ORCID logo https://orcid.org/0000-0002-1395-4562
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/169935
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