New symmetry of intended curved reaches.

ABSTRACT:

Background

Movement regularities are inherently present in automated goal-directed motions of the primate's arm system. They can provide important signatures of intentional behaviours driven by sensory-motor strategies, but it remains unknown if during motor learning new regularities can be uncovered despite high variability in the temporal dynamics of the hand motions.

Methods

We investigated the conservation and violation of new movement regularity obtained from the hand motions traced by two untrained monkeys as they learned to reach outwardly towards spatial targets while avoiding obstacles in the dark. The regularity pertains to the transformation from postural to hand paths that aim at visual goals.

Results

In length-minimizing curves the area enclosed between t

SUBMITTER: Torres EB 

PROVIDER: S-EPMC2867946 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature