AI Article Synopsis

  • Proprioception is essential for understanding the position of one's body; a case study showed loss in a stroke patient’s limb.
  • The patient experienced temporary proprioceptive recovery when physically touching his impaired arm with the unimpaired one.
  • Both actual and imagined touches from the unimpaired arm improved the patient's movement accuracy and smoothness when reaching for targets, demonstrating a beneficial effect in various conditions.

Article Abstract

Proprioception is the sense of the position of one's own body. Here, we present a case study of an individual with proprioceptive loss in one limb consequent to stroke. The patient indicated that merely touching his impaired arm with his unimpaired arm temporarily restored his proprioception. We examined this claim and the effects of imagined touch by the unimpaired arm. Assessments were made using three-dimensional tracking of reaching trajectories towards targets in conditions of light and darkness. Both actual and imagined touching significantly reduced movement error and jerk, specifically for targets located in regions that both hands would be able to reach.

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http://dx.doi.org/10.1080/13554794.2011.556124DOI Listing

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