Thalamic song system nucleus DLM is adjacent to but separate from
DTCbN. A, Iontophoretic injection of AAV-GFP vector
in Area X. Left panel, schematic of injection site. Right panel, representative
section showing injection. nido, nidopallium. MAN, magnocellular nucleus of
anterior nidopallium. MSt, medial striatum. B–D, Resulting
anterograde label of calyceal-like terminals in DLM (dashed white line). Note
that label is confined to bright oval as seen in tissue when viewed with DIC
filter. DLM, dorsolateral thalamus, medial part. Ov, nucleus ovoidalis. PC,
posterior commissure. All sections are parasagittal, left is anterior and up is
dorsal. All scale bars: 500 μm