A–F, Examples of PRV-labeled premotor neurons 5 d after injection. A shows PRV-labeled neurons in the Cu (cuneate nucleus) ipsilaterally. B shows PRV-labeled neurons in the superior colliculus (SC) contralaterally. C shows PRV labeling in the red nucleus (RN) and pararubral nucleus (PaR) mainly contralaterally and deep mesencephalic nucleus (DMe) bilaterally. D shows PRV-labeled neurons in HVI longitudinal zone C-3 ipsilaterally; note AIN PRV-labeled neurons in the same section. E shows a group of PRV-labeled Purkinje cells in HVI zone C-3 ipsilaterally. F shows PRV-labeled cerebellar lobule I (L1) longitudinal zone A ipsilaterally, note PRV-labeling in the rostral fastigial nucleus (FN), lateral and medial vestibular nucleus (MVe) ipsilaterally. Scale bars: A–D, F, 1 mm; E, 200 μm.