Enhancing Visual Sensitivity.
Final rept. 1 Oct 83-30 Sep 84,
NORTHWESTERN UNIV EVANSTON IL
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This report summarizes the major studies carried out under AFOSR grant 80-0246 from October 1, 1983 through September 30, 1984. During this report period we did coordinated work on two aspects of motion perception. One work unit extended our earlier research on how training affects direction discrimination. These studies give new insights into the physiological locus and character of this particular form of perceptual learning. The second work unit exploited perceptual confusions among motion metamers in order to develop a quantitative model of the mechanisms that underlie human direction perception. The model is built around a small number n12 of broadly-tuned directionally-selective mechanisms. This model gives an excellent account of the experiments with motion metamers. Author
- Anatomy and Physiology