Perceptual Distortions and Hallucinations Reported during the Course of Sleep Deprivation

Author:

Babkoff Harvey1,Sing Helen C.2,Thorne David R.2,Genser Sander G.2,Hegge Frederick W.2

Affiliation:

1. Bar-Ilan University

2. Department of Behavioral Biology Walter Reed Army Institute of Research, Washington, DC

Abstract

Subjects worked 30 to 45 min. of each hour for either 48 ( n = 2) or 2 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).

Publisher

SAGE Publications

Subject

Sensory Systems,Experimental and Cognitive Psychology

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