Pupil diameter tracked during motor adaptation in humans
Atsushi Yokoi, Jeffrey Weiler
Abstract
Pupil diameter is known as a noninvasive window into individuals' internal states. Despite the growing use of pupillometry in cognitive learning studies, it receives little attention in motor learning studies. Here, we characterized the pupil responses in a short-term reach adaptation paradigm by measuring pupil diameter of human participants while they adapted to abrupt, gradual, or switching force field conditions. Our results demonstrate how surprise and uncertainty reflected in pupil diameter develop during motor adaptation.
Topics & Concepts
PupillometryPupilPupillary responsePsychologySurpriseTonic (physiology)Eye movementVisual fieldCognitive psychologyAudiologyNeuroscienceCommunicationMedicineVisual perception and processing mechanismsNeural and Behavioral Psychology StudiesMotor Control and Adaptation