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R.M. Hill

2 papers in the library · 13 citations · publishing 1970-1971

Papers

Psychotropic Drug-Induced Transformations of Visual Space

International Pharmacopsychiatry January 1, 1971 R. Fischer, R.M. Hill 7 citations

Ergotropic arousal-inducing drugs—psilocybin, a Ditran-type glycolate, and D-amphetamine—significantly lower spatial distortion thresholds, meaning they interfere with the brain's ability to counter-adapt to optical distortion and maintain an undistorted view of the world. In contrast, the trophotropic arousal-inducing drug chlorpromazine promotes such counter-adaptation, enhancing the optimization of visual information. This interference with optimization occurs independently of the rate at which the distorting stimulus is presented. The optimization itself is considered a cortical perceptual-behavioral interpretive process, while the interference or promotion of it reflects subcortical influences.

DOI: 10.1159/000468248 Medicine Drug Space punctuation Pharmacology +1

Psilocybin-Induced Transformations of Visual Space

Pharmacopsychiatry July 1, 1970 R.M. Hill, R. Fischer 6 citations

Under the influence of psilocybin (160 µg/kg), the abathic plane—the Euclidean visual space—remained relatively stable in 16 volunteers with a median age of 23.5 years, as measured by apparent fronto-parallel plane monitoring. Handwriting area and pressure were also assessed in the same subjects.

DOI: 10.1055/s-0028-1094281 Psilocybin Hallucinogen Psychology Space punctuation +1