Somatosensory feedback occurs during every movement performed. The transmission of this feedback is dynamically regulated during movement. This review addresses the limits of somatosensory feedback control of human movement and proposes that dynamic modification of feedback inflow requires an increased reliance on internal models for movement control.
Movement can modify transmission in somatosensory feedback pathways. This reduces the potential reliance of the nervous system on feedback during movement.
1Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; 2Rehabilitation Neuroscience Laboratory, University of Victoria, Victoria, British Columbia, Canada; and 3International Collaboration on Repair Discoveries (ICORD), Vancouver, British Columbia, Canada
Address for correspondence: E. Paul Zehr, Ph.D., Rehabilitation Neuroscience Laboratory, P.O. Box 3010 STN CSC, A358 MacLaurin Building, University of Victoria, Victoria, BC Canada, V8W 3P1 (E-mail: firstname.lastname@example.org, www.zehr.ca).
Accepted for publication: September 24, 2005.
Associate Editor: Roger M. Enoka, Ph.D.