EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The luminance dependence of spatial vision in the cat


Vision Research 21(9): 1333-1340
The luminance dependence of spatial vision in the cat
The spatial contrast sensitivity and spatial resolution of 3 cats and 1 human observer were measured behaviorally over a 6 log unit range of luminances. At the highest luminance tested (16 cd/m2), cats showed lower peak contrast sensitivity than humans, and their sensitivity function was located at lower spatial frequencies. As luminance was reduced, the contrast sensitivity of both humans and cats declined while both peak sensitivity and the limit of resolution shifted toward lower frequencies. These changes were more pronounced in humans and resulted in a convergence of both contrast sensitivity and spatial resolution of the 2 species at the lowest luminance tested. The dissimilarities in the luminance dependence of spatial vision in cats and humans appear to be due to differences in both photoreceptor distribution and receptor-ganglion cell convergence.

Accession: 006712371

PMID: 7314518

DOI: 10.1016/0042-6989(81)90240-6

Download PDF Full Text: The luminance dependence of spatial vision in the cat



Related references

Luminance dependence of spatial vision in normal and strobe reared cats. Investigative Ophthalmology & Visual Science (SUPPL): 217, 1980

Luminance-dependence of spatial vision in budgerigars (Melopsittacus undulatus) and Bourke's parrots (Neopsephotus bourkii). Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology 198(1): 69-77, 2012

Dependence of the visual response estimated by the masking technique on the stimulus temporal luminance gradient. I. Effects of the stimulus spatial extent and luminance. Tohoku Psychologica Folia 61: 29-47, 2002

Spatial vision under low luminance after laser refractive surgery. Journal of Refractive Surgery 19(4): 467-467, 2003

Spatial filters and the localization of luminance changes in human vision. Vision Research 24(10): 1387-1398, 1984

Spectral and spatial selectivity of luminance vision in reef fish. Frontiers in Neural Circuits 8: 118-118, 2015

Spatial localization of colour and luminance stimuli in human peripheral vision. Vision Research 40(7): 759-771, Feb 28, 2000

Luminance dependence of spatial interactions in the human retina. Investigative Ophthalmology & Visual Science 37(3): S1074, 1996

Low luminance effects on spatial contrast sensitivity in age related macular degeneration central vision. Investigative Ophthalmology & Visual Science 29(ABSTR ISSUE): 3, 1988

Dependence of the visual response estimated by the masking technique on the stimulus temporal luminance gradient. II. Effects of the background luminance and direct comparison of the effects between the temporal luminance gradient and the luminance. Tohoku Psychologica Folia 62: 24-47, 2003