Identifying cortical areas that underlie the transformation from 2D retinal to 3D head-centric motion signals.

ABSTRACT: Accurate motion perception requires that the visual system integrate the 2D retinal motion signals received by the two eyes into a single representation of 3D motion. However, most experimental paradigms present the same stimulus to the two eyes, signaling motion limited to a 2D fronto-parallel plane. Such paradigms are unable to dissociate the representation of 3D head-centric motion signals (i.e., 3D object motion relative to the observer) from the associated 2D retinal motion signals. Here, we used stereoscopic displays to present separate motion signals to the two eyes and examined their representation in visual cortex using fMRI. Specifically, we presented random-dot motion stimuli that specified various 3D head-centric motion directions. We also presented control stimuli, which match

SUBMITTER: Wen P 

PROVIDER: S-EPMC10061442 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature