- Entoptic phenomena (archaeology)
"For a medical definition please see
Entoptic phenomenon "In archaeology, the term entoptic phenomena relates to visual experiences derived from within the eye or brain (as opposed to externally, as in normal vision). In this respect they differ slightly from the medical definition, which defines entoptic phenomena as only applying to sources within the eye, not the brain. To avoid this confusion, the term subjective visual phenomena is sometimes used.
There has been a great deal of work trying to find evidence of motifs and compositions derived from entoptic phenomena in
prehistoric art , especiallyrock art andmegalithic art . The justification of this research is that entoptic phenomena normally occur during states of altered consciousness, the practice of which may impact our views of ancient religious and social practice.ee also
*
Entheogen
*Phosphene
*Psychedelic art
*Optical illusions References
* Dronfield, J. 1995. “Subjective Visions and the Source of Irish Megalithic Art.” in "Antiquity" 69, pp539-549
*Lewis-Williams, D. and Pearce, D. 2005. "Inside the Neolithic Mind". London: Thames and Hudson
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