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일시적 수면박탈에 의한 신경인지기능의 변화

Neurocognitive Effect of Transient Sleep Deprivation

서완석
대한신경정신의학회 (Korean Neuropsychiatric Association)|2004.11|신경정신의학 (JOURNAL OF THE KOREAN NEUROPSYCHIATRIC ASSOCIATION)|제43권 제6호|pp. 681-688

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참고문헌

키워드

수면박탈 · 인지기능 · 집중력 · 반응시간 · 시지각 기능.Sleep deprivation · Attention · Cognitive function · Reaction time · Visual function.
주제분류정신과학

초록

Abstract

Objectives：This study was performed to evaluate intelligence, memory, and neurocognitive function differences after one night of sleep deprivation. Methods：Healthy medical students were recruited and randomly divided into normal sleep and sleep deprivation groups. Each group was given an initial test of Korean Form of the WAIS (K-WAIS) and the Korean Form of Memory Assessment Scales (K-MAS). Each group also performed Continuous Performance Tests (CPT), Controlled Continuous Performance Tests (CCPT) and the Wisconsin Card Sorting Tests (WCST). The CPT and the CCPT had both visual and auditory components. One week later, the normal sleep group performed the same tests in the same conditions. The sleep deprivation group stayed up all night in a psychiatric ward and then repeated the same tests. Results：The scores on the calculation subscale in the K-WAIS and the verbal memory subscale in the K-MAS were not increased by the repetition of the same tests for the sleep deprivation group. Thus, it seems that verbal functions were influenced by transient sleep deprivation. In visual CPT, the sleep deprivation group had decreased numbers of correct response, increased numbers of commission errors, and prolonged reaction times. Finally, increased reaction times were consistently observed in the sleep deprivation group in all forms of the CPT and CCPT. Conclusion：Even one night of sleep deprivation influences verbal function, visual function, and reaction time in cognitive tests. It was assumed that many sleep deprivation-related accidents might be associated with difficulties in visual attention and prolonged reaction times. (J Korean Neuropsychiatr Assoc 2004;43(6):681-688)

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