Atlases showing the rostro-caudal pattern of PRV labeling in CN for two injection cases. A A case with abundant labeling in MOC neurons (n = 466) and some labeling in LOC neurons (n = 31). B A case with abundant labeling of both MOC neurons (n = 172) and LOC neurons (n = 134). Each drawing shows the superimposed labeling from four sections and each symbol represents a single labeled neuron (see key for cell type). Both the ipsilateral (injected) and contralateral sides are shown. Survival times: A, 4 days; B, 3 days. DCN dorsal cochlear nucleus, PVCN posteroventral cochlear nucleus, AVCN anteroventral cochlear nucleus, AN auditory nerve, sgl superficial layer of granule cells.