A single-rate context-dependent learning process underlies rapid adaptation to familiar object dynamics.

ABSTRACT: Motor learning has been extensively studied using dynamic (force-field) perturbations. These induce movement errors that result in adaptive changes to the motor commands. Several state-space models have been developed to explain how trial-by-trial errors drive the progressive adaptation observed in such studies. These models have been applied to adaptation involving novel dynamics, which typically occurs over tens to hundreds of trials, and which appears to be mediated by a dual-rate adaptation process. In contrast, when manipulating objects with familiar dynamics, subjects adapt rapidly within a few trials. Here, we apply state-space models to familiar dynamics, asking whether adaptation is mediated by a single-rate or dual-rate process. Previously, we reported a task in which subjects ro

SUBMITTER: Ingram JN 

PROVIDER: S-EPMC3182866 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature