V4 neurons are tuned for local and non-local features of natural planar shape
Tim Oleskiw, James Elder, Gerick Lee, Andrew Sutter, Anitha Pasupathy, Eero Simoncelli, J. Anthony Movshon, Lynne Kiorpes, Najib Majaj · COSYNE 2023
Planar shape, i.e., the silhouette contour of a solid body, carries rich information important for object recognition, including both local (curvature) and global shape cues. While curvature-selective neurons have been identified in area V4 of primate, it remains unclear whether a) curvature is the best way to characterize the shape selectivity of these neurons and b) whether selectivity is limited to local shape. Here we employ a unique array of shape stimuli to dissociate tuning for local and global shape properties. These stimuli have been used previously to identify an intriguing congruenc
Sun, Mar 12, 2023