Dynamic control of eye-head gaze shifts by a spiking neural network model of the superior colliculus

ABSTRACT:

Introduction

To reorient gaze (the eye’s direction in space) towards a target is an overdetermined problem, as infinitely many combinations of eye- and head movements can specify the same gaze-displacement vector. Yet, behavioral measurements show that the primate gaze-control system selects a specific contribution of eye- and head movements to the saccade, which depends on the initial eye-in-head orientation. Single-unit recordings in the primate superior colliculus (SC) during head-unrestrained gaze shifts have further suggested that cells may encode the instantaneous trajectory of a desired straight gaze path in a feedforward way by the total cumulative number of spikes in the neural population, and that the instantaneous gaze kinematics are thus determined by the neural firing

SUBMITTER:  

PROVIDER: S-EPMC9714624 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature