Distributed encoding of curvilinear self-motion across spiral optic flow patterns.

ABSTRACT: Self-motion along linear paths without eye movements creates optic flow that radiates from the direction of travel (heading). Optic flow-sensitive neurons in primate brain area MSTd have been linked to linear heading perception, but the neural basis of more general curvilinear self-motion perception is unknown. The optic flow in this case is more complex and depends on the gaze direction and curvature of the path. We investigated the extent to which signals decoded from a neural model of MSTd predict the observer's curvilinear self-motion. Specifically, we considered the contributions of MSTd-like units that were tuned to radial, spiral, and concentric optic flow patterns in "spiral space". Self-motion estimates decoded from units tuned to the full set of spiral space patterns were substan

SUBMITTER: Layton OW 

PROVIDER: S-EPMC9352735 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature