Fig. 1.    Camera lucida drawings (25x) from frontal sections labeled for dopamine-ß-hydroxylase/choline acetyltransferase (DBH/ChAT), using the nickel-enhanced 3,3'-diaminobenzidine/3,3'-diaminobenzidine (NiDAB/DAB) technique. Cholinergic cells are represeented in red, DBH-positive fibers/terminals in black.
A: Rostral. B: Caudal.