Abstract
Three experiments were conducted in an attempt to discriminate between an eye-movement theory and a neural curvature analyzer theory of visual adaptation to curvature. Ninety university students served as subjects and were required to inspect stimulus lines presented as (a) curved line pairs, (b) single curved lines, (c) curved line stereograms portraying curved lines concave up, to the right, or toward the subject, or (d) random-dot stereograms portraying curved lines concave up, to the right, or toward the subject. The results of the first two experiments indicate that subjects can readily adapt to the curvature in pairs of lines of opposite curvature presented in different parts of the same or opposite retinas. These results contradict the eye-movement theory of adaptation to curvature. In the third experiment, adaptation to curvature was recorded for curved lines presented as line stereograms and random-dot stereograms. It was concluded that presently the neural curvature analyzer theory of adaptation to curvature best explains the results of these three experiments.
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This research is based on a dtssertation (Vernoy, 1975) submitted to the University of Calitbrnia. Irvine. in partial fulfillment of the requirements for the PhD degree.
This research is based supported in part by Public Health Service Predoctoral Research Fellowship 1 FO1 MH58071-01 to the author. The spectal projection and vtewing facilities used for these expertments were provided by National Science Foundation Grant GB-40207 to Myron L. Braunstein.
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Vernoy, M.W. Adaptation to curvature: Eye movements or neural curvature analyzers?. Perception & Psychophysics 19, 55–62 (1976). https://doi.org/10.3758/BF03199385
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DOI: https://doi.org/10.3758/BF03199385