Instructive signals for motor learning from visual cortical area MT.


Journal Article

Sensory error signals have long been proposed to act as instructive signals to guide motor learning. Here we have exploited the temporal specificity of learning in smooth pursuit eye movements and the well-defined anatomical structure of the neural circuit for pursuit to identify a part of sensory cortex that provides instructive signals for motor learning in monkeys. We show that electrical microstimulation in the motion-sensitive middle temporal area (MT) of extrastriate visual cortex instructs learning in smooth eye movements in a way that closely mimics the learning instructed by real visual motion. We conclude that MT provides instructive signals for motor learning in smooth pursuit eye movements under natural conditions, suggesting a similar role for sensory cortices in many kinds of learned behaviors.

Full Text

Duke Authors

Cited Authors

  • Carey, MR; Medina, JF; Lisberger, SG

Published Date

  • June 2005

Published In

Volume / Issue

  • 8 / 6

Start / End Page

  • 813 - 819

PubMed ID

  • 15908949

Pubmed Central ID

  • 15908949

International Standard Serial Number (ISSN)

  • 1097-6256

Digital Object Identifier (DOI)

  • 10.1038/nn1470


  • eng

Conference Location

  • United States