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Updated: Aug 4, 2026

Quantification of Visual Feature Selectivity of the Optokinetic Reflex in Mice
Published on: June 23, 2023
Shift in speed selectivity of visual cortical neurons: a neural basis of perceived motion contrast
1Chinese Institute of Neuroscience, 320 Yue-Yang Road, Shanghai 200031, China. cyli@sunm.shcnc.ac.cn
Abstract:
The perceived speed of motion in one part of the visual field is influenced by the speed of motion in its surrounding fields. Little is known about the cellular mechanisms causing this phenomenon. Recordings from mammalian visual cortex revealed that speed preference of the cortical cells could be changed by displaying a contrast speed in the field surrounding the cell's classical receptive field. The neuron's selectivity shifted to prefer faster speed if the contextual surround motion was set at a relatively lower speed, and vice versa. These specific center-surround interactions may underlie the perceptual enhancement of speed contrast between adjacent fields.
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