Integration of the Stiles–Crawford effect of the first kind

Autor:	Vasudevan Lakshminarayanan, Jay M. Enoch
Rok vydání:	2009
Předmět:	Visual perception genetic structures business.industry Stiles–Crawford effect humanities eye diseases Atomic and Molecular Physics and Optics Pupil Entrance pupil Optics Optometry sense organs business Psychology Photopic vision
Zdroj:	Journal of Modern Optics. 56:2240-2250
ISSN:	1362-3044 0950-0340
DOI:	10.1080/09500340903118533
Popis:	In 1932/1933, Walter Stanley Stiles and Brian Hewson Crawford, sought to measure the area of the entrance pupil of their subject's eyes. They assumed all portions of the entrance pupil of the eye contributed equally to visual excitation. Their pupillometer did not function as hypothesized. Using photopic stimuli, they found light-rays entering the pupil center had greater capability to stimulate vision than rays penetrating peripheral portions of the pupil. They deduced the reason for this failure, and discovered the Stiles–Crawford effect of the first kind (SCE-1), or ‘the directional sensitivity of the retina’. This important finding resulted in numerous fine studies, but integration of excitation across the entrance pupil of the eye, per se, has been rarely considered. At a later date, Enoch, then Drum, addressed this problem. We address integration and specification of visual stimuli, consider confounds, such as the effects of aberration-induced blur, and the means of mitigating confounds encountered....
Databáze:	OpenAIRE
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