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Pharmacol Biochem Behav. 1991 Nov;40(3):689-90.

Reduced binocular depth inversion as an indicator of cannabis-induced censorship impairment.

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1
Max Planck Institute for Psychiatry, Munich, Germany.

Abstract

Measurements of binocular depth inversion using a stereoscopic slide projection with polarized light were performed in healthy volunteers before and after cannabis intake. Since binocular depth inversion represents an illusion occurring in the perception of semantically meaningful objects projected in a 3-D inverted fashion, the hypothesis can be tested that cannabis-induced "psychedelic states" represent a condition in which the human CNS is unable to correct implausible perceptual hypotheses. The data demonstrate a strong cannabis-induced impairment of binocular depth inversion.

PMID:
1666928
[Indexed for MEDLINE]

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