[Model for the feedback mechanism between horizontal cells and photoreceptors of vertebrate retinas].
Copyright policy )[Model for the feedback mechanism between horizontal cells and photoreceptors of vertebrate retinas].
A model is proposed which is based on the hypothesis that the feedback between horizontal cells and photoreceptors is fulfilled by electric current generated by the subsynaptic membrane of horizontal cells and flowing partially through receptors. An important element of the model is nonlinearity of the presynaptic membrane of photoreceptors. The model reproduces such experimental data as depolarization of cones evoked by hyperpolarization of horizontal cells with a light annulus or extrinsic current, as well as some properties of current-voltage relations in cones and rods.
Models, Neurological, Retinaldehyde, Animals, Photoreceptor Cells, Vitamin A, Electric Stimulation, Feedback, Turtles
Models, Neurological, Retinaldehyde, Animals, Photoreceptor Cells, Vitamin A, Electric Stimulation, Feedback, Turtles
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