entoptic


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Related to entoptic: entropic, expectoration, Phosphenes

entoptic

(ɛnˈtɒptɪk)
adj
(Physiology) (of visual sensation) resulting from structures within the eye itself
[ento- + optic]
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References in periodicals archive ?
The animation goes on to explain blue field entoptic phenomenon, or Scheerer's phenomenon the fleeting sparks which diffuse across the field of vision.
Pieces of prehistoric art discovered all around the world suggest that optical illusions or entoptic phenomena may have been part of the artistic experience of our ancestors.
The patterns in these images seem as obsessive and entoptic as Yayoi Kusama's, and are sometimes as visually disorienting.
Entoptic visualization of the retinal vasculature near fixation.
Individual variation of visual nystagmus, eyeblinks, comprehension/literacy, and sundry features of entoptic and nonentoptic origin provide the noise background within which reading rate is embedded.
1989 "Dots and Dashes: Cracking the Entoptic Code in Bushman Rock Paintings", South African Archaeological Society Godwin Series 6:84-94.
1988): "The signs of ali times: entoptic phenomena in Upper Paleolithic art", Current Anthropology, 29, pp.
Postulating an ancient origin of shamanism, on the basis of entoptic phenomena observed in rock-art, and supported by ethnographic accounts, this study places earlier work, such as that of J.
Today, shamanistic explanations in archaeology and in rock-art research focus especially on the universality of altered states of consciousness (drug-induced, caused through lack of sleep, excessive active participation in social rituals or the like), the role of shamanism in ritual behaviour and collective consciousness, and the universality and biological foundations of visionary experiences and entoptic phenomena.
Entoptic phenomena in Upper Palaeolithic art," Current Anthropology 29 (1988): 201-245; Lewis Williams, D.
This entoptic phenomenon, known as Haidinger's brush, was first described in the mid-1900s and is believed to be caused by xanthophyll pigments in the macular: lutein, zeaxanthin, and meso-zeaxanthin.
Her preposterously obsessive mark making seemed to signal an intention not merely to document the workings of the subconscious pictorially or textually, a la Surrealist dictates, but to register its entoptic effusions in real time--a subtle shift toward a conception of drawing "as a verb.