Molecules in the cerebellar cortex

The cerebellum fine-tunes movements. It receives input from regions of the cerebral cortex that plan and initiate complex movements. It also receives input from sensory areas about the current course of the movement. By comparing the intended movement with the actual movement the cerebellum can compute corrections that allow swiftly executed movements. The computation occurs by strengthening or weakening synapses.The picture shows structures in the cerebellum by labelling molecules in glia cells (green), in synapses (red) and in dendrites of nerve cellls (blue).