Alertness and Sleepiness after Sleep Deprivation
1 Citations•2004•
Miao Dan-min
Chinese journal of clinical psychology
Alertness lowered and sleepiness raised while sleepiness increased after SD, suggesting that as the time of sleep deprivation prolonged, the power of biological rhythm weakened.
Abstract
Objective:To study subjective assessment of alertness and sleepiness during sleep deprivation in different time.Methods:24 young males were randomly divided into 3 groups:SD21, SD45 and SD69. Subjects were sleep deprived from 7:00 am and were tested every 3 hours by subjective assessment. Results:Alertness lowered and sleepiness raised while sleepiness increased after SD. More sensitive to sleepiness than to alertness.As the time of sleep deprivation prolonged, the power of biological rhythm weakened.