| ECVision indexed and annotated bibliography of cognitive computer vision publications This bibliography was created by Hilary Buxton and Benoit Gaillard, University of Sussex, as part of ECVision Specific Action 8-1 The complete text version of this BibTeX file is available here: ECVision_bibliography.bib
Z. Kourtzi and A. S. Tolias and C. F. Altmann and M. A. Augath and N. K. Logothetis
ABSTRACT
The integration of local image features into global shapes was investigated in monkeys and humans us- ing fMRI. An adaptation paradigm was used, in which stimulus selectivity was deduced by changes in the course of adaptation of a pattern of randomly oriented elements. Accordingly, we observed stronger activity when orientation changes in the adapting stimulus resulted in a collinear contour than a different random pattern. This selectivity to collinear contours was ob- served not only in higher visual areas that are impli- cated in shape processing, but also in early visual areas where selectivity depended on the receptive field size. These findings suggest that unified shape perception in both monkeys and humans involves mul- tiple visual areas that may integrate local elements to global shapes at different spatial scales. |
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