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Visual illusion, tactile sensibility and reaction time under LSD-25

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Summary

A series of standard tasks: reaction times; simple light, simple buzzer, disjunctive light, and discriminative light; warmth detection, two-point discrimination, size constancy, Mueller-Lyer illusion, and color detection, were administered to subjects under LSD-25 and control states. A general impairment of reaction time and skin sensitivity was obtained. Color detection was unaffected and the illusions were enhanced. The data were interpreted as representing the result of damping of somaesthetic sensations and a reduction in visual cues.

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Authors and Affiliations

  1. Psychosomatic Section, GM & SH Veterans Administration Center, Los Angeles, California

    Allan E. Edwards & Sidney Cohen

Authors
  1. Allan E. Edwards
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  2. Sidney Cohen
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Edwards, A.E., Cohen, S. Visual illusion, tactile sensibility and reaction time under LSD-25. Psychopharmacologia 2, 297–303 (1961). https://doi.org/10.1007/BF00404117

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  • DOI: https://doi.org/10.1007/BF00404117

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