Fig. 4.
Injections of RDA into different subregions of right lMANcore (shown in schematics) produced anterograde label over specific subregions within coronal sections of right area X (schematics and photomicrographs) in an adult DF bird and a 35 d WN bird. Nissl-defined outlines of area X are depicted bydashed lines; lateral, right; dorsal, superior.A, An injection centered in ventral–intermediate and ventrolateral lMANcore in an adult DF bird produced patches of label within the ventral–intermediate and ventrolateral subregions of area X. Labeled axons from the injection site in lMANcore (arrows) traversed the dorsal and intermediate parts of area X before arborizing exclusively in its ventral subregion. B, Anterograde label within the dorsal intermediate subregion of area X (X) was produced by an injection into the dorsal–intermediate part of lMANcore of a 35 d WN bird. LPO, Parolfactory lobe. Scale bar, 200 μm.