Form constant
Form constant
Form constant (pronunciation: /fɔːrm ˈkɒnstənt/) is a term used in the field of neurology and psychology to describe the geometric patterns and shapes that individuals often see during hallucinations or altered states of consciousness. The term was first coined by the German psychologist Heinrich Klüver in the 1920s.
Etymology
The term "form constant" is derived from the observation that these patterns and shapes remain consistent (constant) across different individuals and cultures, despite the wide variety of hallucinatory experiences. The word "form" refers to the geometric shapes and patterns that are seen.
Related Terms
- Phosphenes: These are the sensation of seeing light or color when there is no light present, often experienced when pressure is applied to the closed eyes.
- Entoptic Phenomena: These are visual effects whose source is within the eye itself, often seen in the form of floaters or blue field entoptic phenomenon.
- Hallucinogen: A substance that induces hallucinations, often leading to the perception of form constants.
- Psychedelic Experience: A temporary altered state of consciousness induced by the consumption of psychedelic substances such as LSD or psilocybin.
See Also
External links
- Medical encyclopedia article on Form constant
- Wikipedia's article - Form constant
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