Pupillometric investigation into the speed-accuracy trade-off in a visuo-motor aiming task.

ABSTRACT: Convergent lines of evidence suggest that fluctuations in the size of the pupil may be associated with the trade-off between the speed (adrenergic, sympathetic) and accuracy (cholinergic, parasympathetic) of behavior across a variety of task contexts. Here, we explored whether pupil size was related to this trade-off during a visuospatial motor aiming task. Participants were shown visual targets at random locations on a screen and were instructed and incentivized to move a computer mouse-controlled cursor to the center of the targets, either as fast as possible, as accurately as possible, or to strike a balance between the two. Behavioral results showed that these instructions led to typical speed-accuracy trade-off effects on movement reaction times and hit distances to target centers. Pu

SUBMITTER: Naber M 

PROVIDER: S-EPMC7027463 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature