Correlations in state space can cause sub-optimal adaptation of optimal feedback control models.

ABSTRACT: Control of our movements is apparently facilitated by an adaptive internal model in the cerebellum. It was long thought that this internal model implemented an adaptive inverse model and generated motor commands, but recently many reject that idea in favor of a forward model hypothesis. In theory, the forward model predicts upcoming state during reaching movements so the motor cortex can generate appropriate motor commands. Recent computational models of this process rely on the optimal feedback control (OFC) framework of control theory. OFC is a powerful tool for describing motor control, it does not describe adaptation. Some assume that adaptation of the forward model alone could explain motor adaptation, but this is widely understood to be overly simplistic. However, an adaptive optimal

SUBMITTER: Aprasoff J 

PROVIDER: S-EPMC3304072 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature