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KMID : 0605720090150020140
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Journal of the Korean Society of Biological Therapies in Psychiatry
2009 Volume.15 No. 2 p.140 ~ p.147
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A Preliminary Study on Divided Attention in Patients with Schizophrenia and Bipolar Disorder
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Song Young-Hun
Lee Jae-Won
Lee Young-Ryeol
Kim Jeong-Lan
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Abstract
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Objectives: Although previous research have shown that impaired sustained attention is common in individuals with psychosis, few studies have examined whether divided attention was impaired in patients with schizophrenia and those with bipolar I disorder. The goal of this study was to determine whether patients with schizophrenia or with bipolar I disorder would have divided attentional disturbances.
Methods: Twenty one patients with schizophrenia, 12 patients with bipolar I disorder, most recent episode manic and 15 healthy comparison subjects completed the Integrated Visual and Auditory Continuous Performance Test(IVA CPT) to examine their divided attention function.
Results: Both patient groups showed significantly lower scores of consistency of the response control area for both visual and auditory stimuli as well as scores auditory focus and visual speed than the healthy group did. While the score of visual stamina of the response control area were significantly lower in the bipolar I disorder group than in the others, the score of auditory speed and visual focus of the response control area were significantly lower in the schizophrenia group than in the others.
Conclusion: These findings suggest that patients with schizophrenia as well as those with bipolar I disorder may have impairments in several areas of the divided attention. Further study is needed to confirm these results with a reasonable sample size.
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KEYWORD
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Divided attention, Integrated visual and auditory continuous performance test, Schizophrenia, Bipolar I disorder
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