Binocular disparity can explain the orientation of ocular dominance stripes in primate V1

TL;DR

This paper proposes that the orientation of ocular dominance stripes in primate V1 is explained by binocular disparity, which minimizes intra-cortical wiring and aligns with observed patterns across species.

Contribution

The study introduces a novel theory linking binocular disparity to the orientation of ocular dominance stripes, supported by pattern predictions matching empirical data.

Findings

Stripe orientation aligns with binocular disparity directions.

Optimal stripe pattern matches macaque and Cebus monkey data.

Predicts depth perception limits along stripe directions.

Abstract

In the primate primary visual area (V1), the ocular dominance pattern consists of alternating monocular stripes. Stripe orientation follows systematic trends preserved across several species. I propose that these trends result from minimizing the length of intra-cortical wiring needed to recombine information from the two eyes in order to achieve the perception of depth. I argue that the stripe orientation at any point of V1 should follow the direction of binocular disparity in the corresponding point of the visual field. The optimal pattern of stripes determined from this argument agrees with the ocular dominance pattern of macaque and Cebus monkeys. This theory predicts that for any point in the visual field the limits of depth perception are greatest in the direction along the ocular dominance stripes at that point.