Effects of local adaptation of receptive field on sensitivity of the cat visual cortex neurons to cruciform images

Abstract

The responses to flashing single light bars of different orientation and to cruciform images (CI) were compared in 9 neurons of the cat striate cortex possessing high specific sensitivity to CI, during local adaptation of various receptive field (RF) zones. In most neurons, a two- to threefold reduction in the response to CI with a constantly present bar of optimum or orthogonal orientation, if compared with a response to the figure consisting of two flashing bars, was found. Responses to the CI including an adaptation bar were often increased, if compared with those observed at usual orientation tuning. The role of a cross-orientation inhibition in the formation of a selective sensitivity to CI in the neurons of the visual cortex is discussed.

DOI: 10.1007/BF01305380

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Cite this paper

@article{Novikova2005EffectsOL, title={Effects of local adaptation of receptive field on sensitivity of the cat visual cortex neurons to cruciform images}, author={R. V. Novikova and Igor A. Shevelev and Natalia A. Lazareva and Alexander S Tikhomirov and George A. Sharaev}, journal={Neurophysiology}, year={2005}, volume={27}, pages={105-109} }