A, Encephalopsin shows a rostrocaudal gradient of expression in the cerebellum. Digoxygeninin situ hybridization is used. Numbersindicate the lobe of the vermis and are numbered in rostrocaudal order. Pictures are taken at 50×. B, Both the number of encephalopsin-expressing cells and the intensity of encephalopsin expression show a rostrocaudal gradient in the cerebellum. Pictures are taken at 400×. Gr, Granule cell layer;Mol, molecular layer; PC, Purkinje cell layer.