Adaptive control is reversed between hands after left hemisphere stroke and lost following right hemisphere stroke.

ABSTRACT: Human motor adaptability is of utmost utility after neurologic injury such as unilateral stroke. For successful adaptive control of movements, the nervous system must learn to correctly identify the source of a movement error and predictively compensate for this error. The current understanding is that in bimanual tasks, this process is flexible such that errors are assigned to, and compensated for, by the limb that is more likely to produce those errors. Here, we tested the flexibility of the error assignment process in right-handed chronic stroke survivors using a bimanual reaching task in which the hands jointly controlled a single cursor. We predicted that the nondominant left hand in neurotypical adults and the paretic hand in chronic stroke survivors will be more responsible for curs

SUBMITTER: Varghese R 

PROVIDER: S-EPMC9963612 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature