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Interactive effects of background facial emotion stimulus and target salience on sustained attention performance in schizophrenia

 Sung-Hyouk Park  ;  Jin-Chan Noh  ;  Jin Hun Kim  ;  Jaewon Lee  ;  Jin Young Park  ;  Young-Ryeol Lee  ;  Chan-Hyung Kim  ;  Kwang-Hyuk Leee 
 SCHIZOPHRENIA RESEARCH, Vol.135(1-3) : 90-94, 2012 
Journal Title
Issue Date
Adult ; Attention Deficit Disorder with Hyperactivity/diagnosis* ; Attention Deficit Disorder with Hyperactivity/etiology* ; Contrast Sensitivity/physiology* ; Emotions/physiology* ; Facial Expression* ; Female ; Humans ; Male ; Pattern Recognition, Visual ; Photic Stimulation ; Reaction Time/physiology ; Schizophrenia/complications* ; Sensitivity and Specificity ; Signal Detection, Psychological ; Young Adult
Schizophrenia ; Attention ; Face ; Emotion ; Salience
Schizophrenia impairs both facial emotion processing and sustained attention. Through separate studies, it is known that the presence of a task-irrelevant facial stimulus disproportionately interferes with performance, whereas increasing the salience of task stimulus improves performance during a sustained attention task in patients with schizophrenia. We wished to investigate a potential interaction effect of background facial emotion expression (black and white happy faces vs. grey oval) and target stimulus salience (bright white vs. grey) using the Continuous Performance Test-Identical Pairs version (CPT-IP) in patients with schizophrenia. Thirty-six patients with schizophrenia and 28 healthy control subjects completed 4 different versions of the CPT-IP. We found that healthy controls exhibited higher signal detection sensitivity (d′) when salient target stimuli were presented on the facial background than when the same stimuli were presented on the grey-oval background. By contrast, patients were not affected by background stimuli when target number stimuli were salient. When target number stimuli were not salient, both patients and controls showed higher d′ in the grey-oval background condition compared with the facial background condition. This study highlight the significance of stimulus salience during CPT-IP in schizophrenia as background stimuli did not produce a differential effect on performance. Our results suggest that, in the situations where facial emotion stimuli are present, patients' sustained attention can be deteriorated and that the use of salient materials is important in improving performance in schizophrenia.
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1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chan Hyung(김찬형)
Park, Jin Young(박진영) ORCID logo https://orcid.org/0000-0002-5351-9549
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