As pointed out by Schmahmann and co-workers in an influential series of neuroanatomical studies, the cerebrocerebellar anatomical circuitry consists of a feedforward limb (the corticopontine and pontocerebellar pathways) and a feedback limb (the cerebellothalamic and thalamocortical systems) reciprocally connecting the cerebellum with the supratentorial regions crucially implicated in cognitive and affective processing.