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. 2000 Jan 15;20(2):854–861. doi: 10.1523/JNEUROSCI.20-02-00854.2000

Fig. 1.

Fig. 1.

Simplified schematic sagittal view of the avian song control system illustrating the distribution of steroid receptors.Black arrows connect nuclei in the main descending motor circuit, and white arrows connect nuclei in the anterior forebrain circuit. DLM, Dorsolateral nucleus of the medial thalamus; lMAN, lateral portion of the magnocellular nucleus of the anterior neostriatum;nXIIts, the tracheosyringeal portion of the hypoglossal nucleus; RA, the robust nucleus of the archistriatum;syrinx, vocal production organ; V,lateral ventricle; X, area X of the parolfactory lobe.