Perceptual distortions and hallucinations reported during the course of sleep deprivation.
Subjects worked 30 to 45 min. of each hour for either 48 (n = 2) or 72 hr. (n = 8) without sleep. The frequency of reported visual task-related perceptual distortions and hallucinations showed both a linear increasing component and a strong circadian component. Perceptual distortions were most frequent in the late night-early morning hours (0400) and least frequent in the late afternoon-early evening hours (1600-2000).
Babkoff
H
H
Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel.
Sing
H C
HC
Thorne
D R
DR
Genser
S G
SG
Hegge
F W
FW
D000293:Adolescent; D000328:Adult; D001143:Arousal; D001288:Attention; D005260:Female; D006212:Hallucinations / Q000523:psychology*; D006801:Humans; D008297:Male; D010469:Perceptual Distortion; D012892:Sleep Deprivation; D014796:Visual Perception