Figure 1.

Top, Application sites (arrowheads) for dextran-amine labeling of vestibulo-ocular (left) and vestibulospinal (right) neuron groups and the domains of these groups as seen in serial parasagittal sections (lateral to medial = top to bottom) of the entire brain at E16.5. Ipsilaterally projecting groups are in dark gray, and contralaterally projecting groups are in light gray. Bottom, The domains of the groups as seen from the dorsal surface of the E16.5 hindbrain. Ipsilaterally projecting groups are on the left side, and contralaterally projecting are on the right side. Arrowheads indicate dextran-amine application sites. Tel, Telencephalon; Di, diencephalon; Mes, mesencephalon; Cb, cerebellum; nV, trigeminal nerve entry zone.