Telencephalic afferents in the goldfish: an anterograde degeneration study.

Terminals of ascending afferents in the telencephalon of the goldfish were examined by the Fink-Heimer method, after the unilateral transection of the peduncular region containing the forebrain bundles. The ascending projections from the more caudal regions of the brain were seen mainly on the ipsilateral side of the lesion. The ascending forebrain bundles gave widely distributed terminals throughout the area dorsalis of the telencephalon, especially in the area dorsalis telencephali pars centralis (Dc) and in the area dorsalis telencephali pars lateralis (DI). They also gave sparse terminals to the preoptic area (POA).