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Access Type
Open Access
Document Type
thesis
Degree Program
Psychology
Degree Name
Thesis (M.S.)
Year Degree Awarded
1973
Abstract
Several theoretical models have been proposed of human and lnfrahuman vision and employed, with some success, to explain the characteristics of a biological system which detects stimulus -equivalences (Deutsch, 1955; Sutherland, 1957; Thomas, 1970; Kerr and Thomas, 1972). The neural correlate of pattern vision, according to Deutsch and Sutherland, was a two-dimensional network of cells which transform the stimulus pattern into coded form that is qualitatively dissimilar from the original stimulus figure. A model of this sort was suggested in order to account for shape perception independent of retinal location. Later, Thomas (1970) outlined a detector system in which neural units responded optimally only If the stimulus has a certain width, orientation and position. The response properties that Thomas endowed to neural units were based upon electrophysiological evidence supplied by Hubel and wiesel (1962, 1965); the model proposed by Thomas was an extension of the neural network concept proposed by Deutsch, whereby neural units that comprise the two-dimensional network were now driven by very special stimulus charcteristics.
DOI
https://doi.org/10.7275/hhtd-dg30