Solving visual correspondence between the two eyes via domain-based population encoding in nonhuman primates

Gang Chen; Haidong D. Lu; Hisashi Tanigawa; Anna W. Roe

doi:10.1073/pnas.1614452114

Solving visual correspondence between the two eyes via domain-based population encoding in nonhuman primates

Gang Chen
, Haidong D. Lu
, Hisashi Tanigawa
, Anna W. Roe

Oregon National Primate Research Center

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Stereoscopic vision depends on correct matching of corresponding features between the two eyes. It is unclear where the brain solves this binocular correspondence problem. Although our visual system is able to make correct global matches, there are many possible false matches between any two images. Here, we use optical imaging data of binocular disparity response in the visual cortex of awake and anesthetized monkeys to demonstrate that the second visual cortical area (V2) is the first cortical stage that correctly discards false matches and robustly encodes correct matches. Our findings indicate that a key transformation for achieving depth perception lies in early stages of extrastriate visual cortex and is achieved by population coding.

Original language	English (US)
Pages (from-to)	13024-13029
Number of pages	6
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	114
Issue number	49
DOIs	https://doi.org/10.1073/pnas.1614452114
State	Published - Dec 5 2017

Funding

We thank F. Tong and V. Casagrande for comments. This work was supported by National Natural Science Foundation Grant 31471052, Fundamental Research Funds for the Central Universities Grant 2015QN81007, and Zhejiang Provincial Natural Science Foundation of China Grant LR15C090001 (to G.C.); National Natural Science Foundation Grants 31371111, 31530029, and 31625012 (to H.D.L.) and 81430010 and 31627802 (to A.W.R.); NIH Grant EY11744 and National Hi-Tech Research and Development Program Grant 2015AA020515 (to A.W.R.); and Vanderbilt University Vision Research Center, Center for Integrative & Cognitive Neuroscience, and Institute of Imaging Science.

Funders	Funder number
Author National Institutes of Health National Institutes of Health National Institutes of Health National Institutes of Health The Bev Hartig Huntington's Disease Foundation National Institutes of Health	EY11744
National Institute of Alcohol Abuse and Alcoholism	R21AA020515
Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University
The National Natural Science Foundation of China	31371111, 31530029, 31627802, 81430010, 31471052, 31625012
Natural Science Foundation of Zhejiang Province	LR15C090001

Keywords

Binocular disparity
Monkey
Optical imaging
Population coding
V2

ASJC Scopus subject areas

General

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10.1073/pnas.1614452114

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Solving visual correspondence between the two eyes via domain-based population encoding in nonhuman primates

Abstract

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Keywords

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