Irrelevant auditory and tactile signals, but not visual signals, interact with the target onset and modulate saccade latencies.

ABSTRACT: Saccadic eye movements bring events of interest to the center of the retina, enabling detailed visual analysis. This study explored whether irrelevant auditory (experiments A, B & F), visual (C & D) or tactile signals (E & F) delivered around the onset of a visual target modulates saccade latency. Participants were instructed to execute a quick saccade toward a target stepping left or right from a fixation position. We observed an interaction between auditory beeps or tactile vibrations and the oculomotor reaction that included two components: a warning effect resulting in faster saccades when the signal and the target were presented simultaneously; and a modulation effect with shorter-or longer-latencies when auditory and tactile signals were delivered before-or after-the target onset. Co

SUBMITTER: Vidal M 

PROVIDER: S-EPMC7012454 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature