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Lin Shi; Asymmetric temporal resolutions of S-ON and S-OFF pathways. Journal of Vision 2014;14(15):45. doi: 10.1167/14.15.45.
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© ARVO (1962-2015); The Authors (2016-present)
Color opponent channels were the foundation of human color vision while the temporal resolution of those channels remained unclear. The double-pulse distinguishing inter-stimuli-interval thresholds of color opponent channels were measured at a double pulse-duration and at chromatic contrast intensities of single-pulse detection thresholds corresponding 95% correct answers. The stimuli had a constant background luminance and an isoluminance except the luminance contrast case. A custom stimuli representation system was calibrated carefully to achieve a less than 3% display error of the CIE 2006 LMS coordinates and an on-time-single-frame-representation at a millisecond level. Experiment results showed that the double-pulse distinguishing inter-stimuli-interval thresholds of blue-yellow opponent case were significantly different from those of yellow-blue opponent case at various spatial frequencies which indicated asymmetric temporal resolutions of S-ON and S-OFF pathways. Acknowledgement: This study supported by National Natural Science Foundation of China (61368005).
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