PT  - JOURNAL ARTICLE
AU  - Ailene Y. C. Chan
AU  - Dorita H. F. Chang
TI  - Neural Correlates of Sensory Eye Dominance in Human Visual White Matter Tracts
AID  - 10.1523/ENEURO.0232-22.2022
DP  - 2022 Nov 01
TA  - eneuro
PG  - ENEURO.0232-22.2022
VI  - 9
IP  - 6
4099  - http://www.eneuro.org/content/9/6/ENEURO.0232-22.2022.short
4100  - http://www.eneuro.org/content/9/6/ENEURO.0232-22.2022.full
SO  - eNeuro2022 Nov 01; 9
AB  - A significant proportion of the human neurotypical population exhibits some degree of sensory eye dominance (SED), referring to the brain’s preferential processing of one eye’s input versus another. The neural substrates underlying this functional imbalance are not well known. Here, we investigated the relationship between visual white matter tract properties and SED in the human neurotypical population. Observers’ performance on two commonly used dichoptic tasks were used to index SED, along with performance on a third task to address a functional implication of binocular imbalance: stereovision. We show that diffusivity metrics of the optic radiations (ORs) well predict behavioral SED metrics. We found no relationship between SED and stereosensitivity. Our data suggest that SED is not simply reflected by gray matter structural and functional alterations, as often suggested, but relates, at least in part to the microstructural properties of thalamocortical white matter.