眠けの尺度とその実験的検討

概要

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The Kwansei Gakuin Sleepiness Scale (KSS) is a self-rating scale which is developed after the Stanford Sleepiness Scale (SSS) and using Thurstone's method of equal-appearing intervals. The present study investigated whether the KSS correlates with vigilance task performance, fatigue test and oral temperature, and whether circadian variation of the KSS ratings is demonstrated during 40 hours sleep deprivation. Six student subjects employed in this study were given performance test, self-ratings and temperature measurement at every 3 hour for 3 days. On Day-2, sleep deprivation was carried out to all subjects. The results showed that mean KSS ratings highly correlated with correct detection rates on the vigilance task, fatigue test and oral temperature, and that the change of KSS ratings demonstrated not only the effect of sleep deprivation but also the circadian variation in sleepiness.
公益社団法人日本心理学会の論文