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Sustained attention in the context of emotional processing in patients with schizophrenia

 Sung-Hyouk Park  ;  Jae-Jin Kim  ;  Chan-Hyung Kim  ;  Jin Hun Kim  ;  Kwang-Hyuk Lee 
 PSYCHIATRY RESEARCH-NEUROIMAGING, Vol.187(1~2) : 18-23, 2011 
Journal Title
Issue Date
Attention Deficit Disorder with Hyperactivity/etiology* ; Emotions/physiology* ; Face ; Female ; Humans ; Male ; Pattern Recognition, Visual ; Photic Stimulation ; Psychiatric Status Rating Scales ; Reaction Time/physiology ; Schizophrenia/complications* ; Schizophrenic Psychology* ; Sensitivity and Specificity ; Signal Detection, Psychological/physiology* ; Time Factors
Patients with schizophrenia show dysfunction in sustained attention and facial emotion processing. We investigated the interplay between sustained attention and emotion by presenting emotional faces as background during AX-CPT in patients with schizophrenia. Nineteen schizophrenia patients and 21 healthy control subjects participated. We presented AX-CPT number stimuli superimposed on the nose of background facial expressions (happy, neutral or sad) over three experimental blocks for each emotion. Signal detection sensitivity (A') and reaction time were measured. Patients showed a steeper sensitivity decline when happy faces (compared with sad faces) were presented as background stimuli. By contrast, controls' sensitivity was not affected by the background facial emotion stimuli. Across the emotion conditions, the decline of sensitivity over time was evident in patients, but not in controls. To our knowledge, the present study is the first to explore a change in sustained attention accompanied by simultaneous processing of emotional faces in schizophrenia patients. Our findings suggest that mechanisms underlying continuous performance test (CPT) performance decline over time and facial emotion deficit may interact with each other in patients with schizophrenia
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
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