Limb-related sensory prediction errors and task-related performance errors facilitate human sensorimotor learning through separate mechanisms.

ABSTRACT: The unpredictable nature of our world can introduce a variety of errors in our actions, including sensory prediction errors (SPEs) and task performance errors (TPEs). SPEs arise when our existing internal models of limb-environment properties and interactions become miscalibrated due to changes in the environment, while TPEs occur when environmental perturbations hinder achievement of task goals. The precise mechanisms employed by the sensorimotor system to learn from such limb- and task-related errors and improve future performance are not comprehensively understood. To gain insight into these mechanisms, we performed a series of learning experiments wherein the location and size of a reach target were varied, the visual feedback of the motion was perturbed in different ways, and instruct

SUBMITTER: Oza A 

PROVIDER: S-EPMC11221701 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature