期刊
VISION RESEARCH
卷 47, 期 8, 页码 1120-1128出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.visres.2007.01.015
关键词
colour vision; binocular summation; red-green isoluminance; temporal contrast sensitivity; psychophysics
Using a noise-masking paradigm we test the notion of binocular detection mechanisms that combine luminance and colour contrast. Binocular summation was measured for achromatic and red-green isoluminant Gabor stimuli over a range of temporal frequencies and was compared with and without the presence of a two-dimensional, dynamic, luminance noise mask (correlated). While we found that luminance noise reduced binocular luminance summation at all temporal frequencies, binocular red-green summation was reduced only at frequencies of 8 Hz and above. Our results suggest the existence of binocular colour-luminance interactions restricted to high temporal frequencies. (c) 2007 Elsevier Ltd. All rights reserved.
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