The activity in the contralateral primary motor cortex, dorsal premotor and supplementary motor area is modulated by performance gains.

ABSTRACT: There is growing experimental evidence that the engagement of different brain areas in a given motor task may change with practice, although the specific brain activity patterns underlying different stages of learning, as defined by kinematic or dynamic performance indices, are not well understood. Here we studied the change in activation in motor areas during practice on sequences of handwriting-like trajectories, connecting four target points on a digitizing table "as rapidly and as accurately as possible" while lying inside an fMRI scanner. Analysis of the subjects' pooled kinematic and imaging data, acquired at the beginning, middle, and end of the training period, revealed no correlation between the amount of activation in the contralateral M1, PM (dorsal and ventral), supplementary m

SUBMITTER: Sosnik R 

PROVIDER: S-EPMC3997032 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature