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, Volume 3, Issue 1, pp 48–51 | Cite as

Psychophysics of psilocybin and 48-148-148-1

  • Jay H. Shaffer
  • Richard M. Hill
  • Roland Fischer
Other Topics

Abstract

Visual, tactile and intermodal sensory magnitude estimations were performed by college students prior to and after the oral administration of either 160 μg/kg psilocybin or 30 mg Δ9-THC. Although the drugs induce inversely related changes in the exponent of the psychophysical power function (R=kS n ), the straight line relationship between log S (Stimulus) and log R (Response) is altered by neither psilocybin nor Δ9-THC. The remarkable consistency of magnitude estimations in the face of a changing exponent and constant may be interpreted as a demonstration of ‘state boundness’ (i.e., performance that is consistently changed and characteristic of a particular state of consciousness).

Keywords

State Boundness College Student Oral Administration Power Function Magnitude Estimation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Verlag 1973

Authors and Affiliations

  • Jay H. Shaffer
    • 1
  • Richard M. Hill
    • 1
  • Roland Fischer
    • 2
  1. 1.College of Medicine and College of OptometryThe Ohio State UniversityColumbus
  2. 2.Drug Treatment and Research CenterVeterans Administration HospitalWashington, D. C.

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