Synergism of Intercellular Communications and Involuntary Movements in the Formation of Receptive Fields and Processing of Visual Signals at the Level of Retinal Structural Elements

摘要

We used the biophysical and biotechnical models of the formation of receptive fields and signals in the visual system as a tool for studying the physiology of visual perception. This approach reveals the synergism of intercellular communications and involuntary movements in the formation of virtual receptive fields and processing of visual perception signals at different level of the structural organization of the retina. By the virtual receptive field of cellular element of the retina at coordinate J(X_i, Y_k) is meant an image field with a definite size coupled with an adequate retinal field occupied by photoreceptors (PRs) with the center at coordinate J(X_i, Y_k) whose optic excitation is involved in the formation of signals at the inputs of the Jth retinal cellular element. The logic of the processing of the output signal and its informational content are determined by the synergism of several factors: PR excitation, intercellular connections, the function of the cellular element per se, and the retinal image-retina relative movements.