Topographical localization in the olivocerebellar projection in the rat: an autoradiographic study.

The topographical organization of the olivocerebellar projection in the rat was examined by making small localized injections of tritiated leucine into the inferior olive (12 cases). The overall projection pattern is displayed in the form of a topographical map, revealing that the olivocerebellar projection is organized in sagittally orientated strips of cerebellar cortex, each of which receives its terminations from a discrete portion of the olive. The projection pattern is compared to that in the cat. In addition, the laterality of the projection is discussed.