[Analysis of spatial frequency characteristics of complex receptive fields]
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Abstract:
The difference fB2-fB1=deltaf and ratio fB2/fB1=R of the bandwidth boundary frequencies fB1, fB2 of spatial frequency characteristic of complex receptive field depends on the size of RF and spatial structure of excitatory and inhibitory zones. deltaf and r are independent of the weighting functions of excitatory and inhibitory zones. The theoretical value of r is similar to data which was obtained in psychophysical and physiologycal experiments. The dependence of contrast sensitivity on spatial frequency can be explained by dependence of the envelope of weighting functions of exitatory (inhibitory) zones on the spatial frequency.
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