Representation of Multiple Body Parts in the Missing-Hand Territory of Congenital One-Handers.

ABSTRACT: Individuals born without one hand (congenital one-handers) provide a unique model for understanding the relationship between focal reorganization in the sensorimotor cortex and everyday behavior. We previously reported that the missing hand's territory of one-handers becomes utilized by its cortical neighbor (residual arm representation), depending on residual arm usage in daily life to substitute for the missing hand's function [1, 2]. However, the repertoire of compensatory behaviors may involve utilization of other body parts that do not cortically neighbor the hand territory. Accordingly, the pattern of brain reorganization may be more extensive [3]. Here we studied unconstrained compensatory strategies under ecological conditions in one-handers, as well as changes in activation, conne

SUBMITTER: Hahamy A 

PROVIDER: S-EPMC5434257 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature