Abstract:The visibility of a periodic light modulation depends on its temporal frequency and spectral properties. Contrast sensitivity is highest at 8 to 10 Hz for modulations of luminance but is substantially lower for modulations between equiluminant lights. This difference between luminance and chromatic contrast sensitivity is rooted in retinal filtering, but additional filtering occurs in the cerebral cortex. To measure the cortical contributions to luminance and chromatic temporal contrast sensitivity, signals in… Show more
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