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Título

Comparison of cone directionality determined by psychophysical and reflectometric techniques

Autor He, Ji Chang; Marcos, Susana ; Burns, Stephen A.
Palabras clave Human eye
Cone directionality
Psychophysical techniques
Optical techniques
[OCIS] Vision, color, and visual optics: Color
[OCIS] Vision, color, and visual optics: Vision system - noninvasive assessment
[OCIS] Vision, color, and visual optics: Vision - photoreceptors
[OCIS] Vision, color, and visual optics: Vision
Fecha de publicación oct-1999
EditorOptical Society of America
Citación Journal of the Optical Society of America A 16(10): 2363-2369 (1999)
ResumenWe measured the directionality of the cones with both a psychophysical (Stiles–Crawford I) technique and an optical technique. The two sets of measurements were made in the same subjects, with stimuli as similar as possible used. The two types of measurements gave similar estimates of the location in the pupil toward which the cones were optimally aligned. However, the two measurements gave quite dissimilar estimates of the width of the directional sensitivity. On average, optical measurements were half as broad as psychophysical measurements in the fovea, but there were substantial individual differences. At 2-deg retinal eccentricity the difference between techniques was even more marked.
Descripción 7 pages, 7 figures.-- OCIS codes: 330.4300, 330.1690, 330.5310, 330.7310.-- PMID: 10517020 [PubMed].
Versión del editorhttp://dx.doi.org/10.1364/JOSAA.16.002363
URI http://hdl.handle.net/10261/8800
DOI10.1364/JOSAA.16.002363
ISSN1084-7529
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