Early vision is early in time |
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Authors: | Shapley Robert |
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Institution: | Center for Neural Science, New York University, New York, NY 10003, USA. rms3@nyu.edu |
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Abstract: | Roelfsema, Tolboom, and Khayat have found that neurons in primary visual cortex, V1, increase their spike firing rates to signal image segmentation and attention. V1 responses were in a temporal sequence: first to image motion, next to segmentation, last to attentional signals. The involvement of V1 with segmentation and attention suggests modifying the hierarchical view of visual perception. |
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