Quantification of Sleepiness: A New Approach

Psychophysiology - Tập 10 Số 4 - Trang 431-436 - 1973
Eric Hoddes1, Vincent P. Zarcone1, Harvey Smythe1, Robert L. Phillips1, William C. Dement1
1Department of Psychiatry , Stanford University School of Medicine

Tóm tắt

ABSTRACTThe Stanford Sleepiness Scale (SSS) is a self‐rating scale which is used to quantify progressive steps in sleepiness. The present study investigated whether the SSS cross‐validates with performance on mental tasks and whether the SSS demonstrates changes in sleepiness with sleep loss. Five college student Ss were given a brief test of memory and the Wilkinson Addition Test in 2 test sessions and The Wilkinson Vigilance Test in 2 other sessions spaced throughout a 16‐hr day for 6 days. Ss made SSS ratings every 15 min during their waking activities. On night 4, Ss underwent all night sleep deprivation. On all other nights, Ss were allowed only 8 hrs in bed. Mean SSS ratings correlated r= .68 with performance on the Wilkinson Tests. Discrete SSS ratings correlated r= .47 with performance on the memory test. Moreover, mean baseline SSS ratings were found to be significantly lower than corresponding ratings of the deprivation period.

Từ khóa


Tài liệu tham khảo

Hoddes E., 1972, The history and use of the Stanford Sleepiness Scale, Psychophysiology, 9, 150

Rechtschaffen A., 1968, A manual of standardized terminology, techniques, and scoring system for sleep stages of human subjects

Thorndike E. L., 1921, The teachers word book, 127

Thurstone L. L., 1929, The measurement of attitudes

Wilkinson R. T., 1968, Progress in clinical psychology, 28

10.2466/pms.1966.23.3f.1287

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Psychophysiology

Tập 10 Số 4

431-436

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