Transfer and generalization of learned manipulation between unimanual and bimanual tasks.

ABSTRACT: Successful object manipulation, such as preventing object roll, relies on the modulation of forces and centers of pressure (point of application of digits on each grasp surface) prior to lift onset to generate a compensatory torque. Whether or not generalization of learned manipulation can occur after adding or removing effectors is not known. We examined this by recruiting participants to perform lifts in unimanual and bimanual grasps and analyzed results before and after transfer. Our results show partial generalization of learned manipulation occurred when switching from a (1) unimanual to bimanual grasp regardless of object center of mass, and (2) bimanual to unimanual grasp when the center of mass was on the thumb side. Partial generalization was driven by the modulation of effectors'

SUBMITTER: Lee-Miller T 

PROVIDER: S-EPMC8062521 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature