Learning with slight forgetting optimizes sensorimotor transformation in redundant motor systems.

ABSTRACT: Recent theoretical studies have proposed that the redundant motor system in humans achieves well-organized stereotypical movements by minimizing motor effort cost and motor error. However, it is unclear how this optimization process is implemented in the brain, presumably because conventional schemes have assumed a priori that the brain somehow constructs the optimal motor command, and largely ignored the underlying trial-by-trial learning process. In contrast, recent studies focusing on the trial-by-trial modification of motor commands based on error information suggested that forgetting (i.e., memory decay), which is usually considered as an inconvenient factor in motor learning, plays an important role in minimizing the motor effort cost. Here, we examine whether trial-by-trial error-fe

SUBMITTER: Hirashima M 

PROVIDER: S-EPMC3386159 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature