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Spatial- and temporal-frequency selectivity as a basis for velocity preference in cat striate cortex neurons

Published online by Cambridge University Press:  02 June 2009

Curtis L. Baker Jr
Curtis L. Baker Jr
Affiliation:
Department of Psychology, McGill University, Montreal, Quebec, Canada
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Abstract

Measurements were made of the optimal velocity for drifting bar-shaped stimuli to excite striate cortex neurons of the cat. These data were compared to the optimal spatial and temporal frequencies of the same neurons, as determined with drifting sine-wave grating stimuli. A systematic relationship was revealed, whereby those neurons preferring higher velocities of bar motion also preferred lower spatial and higher temporal frequencies of gratings. The optimal bar velocity for a given neuron could be quantitatively predicted from the ratio of that neuron's optimal temporal frequency to its optimal spatial frequency.

Keywords

Striate cortexDirection selectivitySpatial frequencyMotion perceptionTemporal frequency
Type
Research Articles
Information
Visual Neuroscience , Volume 4 , Issue 2 , February 1990 , pp. 101 - 113
Copyright
Copyright © Cambridge University Press 1990

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