Speaker: Dr. Alexandre Reynaud，Research associate at McGill Vision Research

Time: 10:00 - 11:30, July 30, 2019

Venue: #1115, Wangkezhen Building, Peking University

Abstract: Temporarily depriving one eye of its input, in whole or in part, results in a transient shift in eye dominance in human adults, with the patched eye becoming stronger and the unpatched eye weaker. We use filtered dichoptic movies to stimulate the chromatic and achromatic pathways differentially in the two eyes. We obsreve that perceptual changes in eye dominance are strongly driven by interocular imbalances in achromatic contrast, with colour contrast having a significant counter balancing effect, but only on the chromatic sensitivity. The spatial properties driving this eye dominance change suggest that the underlying mechanism is binocular but not orientationally selective, therefore uniquely locating it to layer 4Cb of area V1.

Host: Prof. Fang Fang