SPATIAL-FREQUENCY AND TEMPORAL-FREQUENCY SELECTIVITY AS A BASIS FOR VELOCITY PREFERENCE IN CAT STRIATE CORTEX NEURONS

被引:45
作者
BAKER, CL
机构
[1] Department of Psychology, McGill University, Montreal, Quebec
基金
英国医学研究理事会;
关键词
Direction selectivity; Motion perception; Spatial frequency; Striate cortex; Temporal frequency;
D O I
10.1017/S0952523800002273
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
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. © 1990, Cambridge University Press. All rights reserved.
引用
收藏
页码:101 / 113
页数:13
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