 Lesions in cerebrocerebellum, which receives input exclusively from the cerebral cortex and projects its output to premotor and motor cortices, result in impairments in highly skilled sequences of learned movements, for instance, playing a musical instrument.Lesions may also result in problems with planning movements and ipsilateral incoordination, especially of the upper limb and to faulty phonation and articulation.Pathological interaction between cerebellothalamic tract and basal ganglia may be the explanation for the resting tremor in Parkinson's disease.