A possible low-level explanation of "temporal dynamics of brightness induction and White's illusion"

Details A possible low-level explanation of "temporal dynamics of brightness induction and White's illusion" A possible low-level explanation of "temporal dynamics of brightness induction and White's illusion"

2009-09-18

arxiv.org/abs/0909.3395v1

Computer Science

Computer Vision and Pattern Recognition

11 pages and 7 figures

Scientific paper

Based upon physiological observation on time dependent orientation selectivity in the cells of macaque's primary visual cortex together with the psychophysical studies on the tuning of orientation detectors in human vision we suggest that time dependence in brightness perception can be accommodated through the time evolution of cortical contribution to the orientation tuning of the ODoG filter responses. A set of Difference of Gaussians functions has been used to mimic the time dependence of orientation tuning. The tuning of orientation preference and its inversion at a later time have been considered in explaining qualitatively the temporal dynamics of brightness perception observed in "Brief presentations reveal the temporal dynamics of brightness induction and White's illusion" for 58 and 82 ms of stimulus exposure.

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