Monday, March 13, 2006
What Does the Cerebellum Do?
The cerebellum automates motor tasks. It learns the temporal relationships between sensory and motor signals. After much practice, motor tasks get transferred to the cerebellum. In other words, well-learned tasks get chunked together as motor programs in the cerebellum. More specifically, these are probably closed-loop policies/options, as defined in the reinforcement learning literature. This whole process frees other areas (in the cerebral cortex) to focus its attention on new tasks, building upon the automatic skills stored in the cerebellum. It enables agents to learn hierarchies of motor skills.