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Form Constant




In s (including Honeycomb s, Checkerboard s, and triangles), Cobweb s, tunnels, and Spiral s.

Klüver's form constants have appeared in other drug-induced and naturally-occurring hallucinations, suggesting a similar physiological process underlying hallucinations with different triggers. Klüver's form constants also appear in Near-death Experience s and hallucinations of those with Synesthesia . Other triggers include Psychological Stress , or Threshold Consciousness , including falling asleep, waking up, Insulin Hypoglycemia , the delirium of Fever , Epilepsy , Psychotic Episodes , advanced Syphilis , Sensory Deprivation , Photostimulation , Electrical Stimulation , Crystal Gazing , Migraine Headache s, Dizziness and a variety of Drug Intoxication s.

The diversity of conditions that provoke such patterns suggests that form constants reflect some fundamental property of the Visual System .


SEE ALSO



REFERENCES

# Blackmore, Susan . Dying to Live: Near-Death Experiences. Buffalo, NY: Prometheus Books, 1993.
#Bressloff, Paul C., Jack D. Cowan, Martin Golubitsky, Peter J. Thomas, and Matthew C. Wiener. "What Geometric Visual Hallucinations Tell Us About the Visual Cortex." ''Neural Computation.'' Vol. 14, No. 3 (March 2002): 473-491.
# Cytowic, Richard E. , The Man Who Tasted Shapes .
#Ermentrout,G.B. and Cowan, J.D., "A mathematical theory of visual hallucination patterns." ''Biol. Cybernet.'' 34 (1979), no. 3, 137-150.