Sensory change following motor learning

Andrew A.G. Mattar*, Sazzad M. Nasir, Mohammad Darainy, David J. Ostry

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Here we describe two studies linking perceptual change with motor learning. In the first, we document persistent changes in somatosensory perception that occur following force field learning. Subjects learned to control a robotic device that applied forces to the hand during arm movements. This led to a change in the sensed position of the limb that lasted at least 24. h. Control experiments revealed that the sensory change depended on motor learning. In the second study, we describe changes in the perception of speech sounds that occur following speech motor learning. Subjects adapted control of speech movements to compensate for loads applied to the jaw by a robot. Perception of speech sounds was measured before and after motor learning. Adapted subjects showed a consistent shift in perception. In contrast, no consistent shift was seen in control subjects and subjects that did not adapt to the load. These studies suggest that motor learning changes both sensory and motor function.

Original languageEnglish (US)
Pages (from-to)31-44
Number of pages14
JournalProgress in Brain Research
Volume191
DOIs
StatePublished - Jan 1 2011

Keywords

  • Arm movements
  • Auditory perception
  • Motor learning
  • Proprioception
  • Sensory plasticity
  • Speech motor control

ASJC Scopus subject areas

  • Neuroscience(all)

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