The complementary dominance hypothesis: a model for remediating the 'good' hand in stroke survivors.

ABSTRACT: The complementary dominance hypothesis is a novel model of motor lateralization substantiated by decades of research examining interlimb differences in the control of upper extremity movements in neurotypical adults and hemisphere-specific motor deficits in stroke survivors. In contrast to earlier ideas that attribute handedness to the specialization of one hemisphere, our model proposes complementary motor control specializations in each hemisphere. The dominant hemisphere mediates optimal control of limb dynamics as required for smooth and efficient movements, whereas the non-dominant hemisphere mediates impedance control, important for countering unexpected mechanical conditions and achieving steady-state limb positions. Importantly, this model proposes that each hemisphere contributes

SUBMITTER: Kitchen NM 

PROVIDER: S-EPMC11610521 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature