Citation

Babkoff H, Sing HC, Thorne DR, Genser SG, Hegge FW. Percept. Mot. Skills 1989; 68(3): 787-798.

Affiliation

Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel.

Copyright

(Copyright © 1989, SAGE Publishing)

DOI

10.2466/pms.1989.68.3.787

PMID

2748294

Abstract

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).

Language: en