Two-point discrimination in congenital amputees.

Authors:
  • BWBarbara C. Wilson
    Barbara C. Wilson
  • CSChester A. Swinyard
    Chester A. Swinyard
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Abstract
2-point thresholds on the forearm were measured in 3 groups of children. In congenital unilateral amputees lower thresholds were found on the stump than on the intact arm; no difference between arms was measured in nonamputees. The amputees had lower thresholds (on either arm) than nonamputees; blind nonamputees had higher thresholds. An explanation in terms of differential input to somatosensory cortex is offered. (PsycINFO Database Record (c) 2006 APA, all rights reserved)