Open AccessOrientation anisotropies in macaque visual areas
Author(s) -
Fang Chen,
Xingya Cai,
Haidong Lu
Publication year - 2022
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2113407119
Subject(s) - macaque , visual cortex , orientation (vector space) , oblique case , isotropy , visual perception , anisotropy , visual system , physics , perception , neuroscience , artificial intelligence , psychology , computer vision , optics , computer science , geometry , mathematics , philosophy , linguistics
Significance Orientation selectivity is one of the most important functional features of visual neurons. In the primate visual cortex, whether all orientations are represented equally is still unclear. Previous electrophysiological recordings led to controversial findings. By analyzing a large set of optical imaging data, we found anisotropic representations of orientation in macaque visual areas and that different areas had different types of anisotropies. These findings not only shed light on the long-standing question regarding a basic property of the primate visual cortex, but also on the strategy the visual system takes to represent and analyze the visual world.