Spatiotemporal Characteristics of the Stereoscopic Anisotropy.

ABSTRACT:

Purpose

There is a well-known orientation anisotropy in stereovision, where disparity thresholds for sinusoidal corrugations of low spatial frequencies are much higher for vertical than for horizontal orientations. While previous research has indicated that the visual system responds more rapidly to horizontal than vertical slanted surfaces, the spatiotemporal characteristics underlying the stereoscopic anisotropy have not been thoroughly studied. This study aims to quantify the anisotropy across a range of spatial and temporal frequencies.

Methods

We measured disparity thresholds for vertical and horizontal sinusoidal corrugations across different spatial (from 0.05 to 0.8 cpd) and temporal frequencies (from 0 to 8 Hz). To interpret the data, we fitted a spatiotemporal cros

SUBMITTER: Llamas-Cornejo I 

PROVIDER: S-EPMC12703990 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature