Cerebellar connections of the ventral lateral geniculate nucleus in the rat.

The connections between the deep cerebellar nuclei and the ventral lateral geniculate nucleus (LGv) were investigated in rats using orthograde and retrograde transport of horseradish peroxidase. Following injections into the deep cerebellar nuclei there was orthograde transport to the contralateral medial LGv and adjacent zona incerta. Injections restricted to LGv consistently labelled a small cluster of cells in the contralateral posterior interposed nucleus. Injections into regions surrounding LGv produced distinctively different patterns of orthograde and retrograde labelling.