The spherical model of visual perception, based on the hypothesis of vector encoding of information by neurons-detectors, is suggested and discussed. The following global features of the model are under special consideration: sphericity, universality, and the connection of its metric parameters (spherical angles, Cartesian coordinates) with subjective and neurophysiological aspects of vision. Theoretical states are illustrated by the data of experimental researches of different forms of visual perception in human and animals – perception of ‘color’, ‘direction of moving’, ‘spatial frequencies’, ‘orientation’.

Terrestrial snails Helix are the strategic objects for the psychophysiological studies at the scientific school united by the research strategy “Human—Neuron—Model”. E.N. Sokolov considered studies of the snails’ neurons as very meaningful for the theory of psychophysiology. The unified spherical model developed by Sokolov using vectorial approach consists from the elements similar to the nerve cells. “Simpler nervous systems” of mollusks such the snails present a possibility for experimental testing of spherical model at the level of real neurons and synapses. A task of following talk is to present the results obtained at the snails’ neurons under leadership of E.N. Sokolov and the experiments that he planned for future studies of the spherical model at the level of neurons and synapses.