The Journal of Neuroscience, June 20, 2007, ():
Auditory Feedback and Song Production Do Not Regulate Seasonal Growth of Song Control Circuits in Adult White-Crowned Sparrows
J. Neurosci. Brenowitz et al.
27: 6810
Supplemental Data
Files in this Data Supplement:
- supplemental material
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Supplemental Figure 1. A schematic of the song control system showing auditory inputs and the distribution of steroid receptors. The motor pathway (solid black arrows) controls the production of song. HVC receives input from the thalamic nucleus Uva and the nidopallial nucleus NIf (solid gray arrows). The anterior forebrain pathway (dashed black arrows) is essential for song learning and perception. Forebrain auditory regions project to NIf and HVC in the song system (dotted gray lines). Androgen receptors occur at lower levels in DLM, NIf, and X than in HVC, RA, and lMAN. Abbreviations: DLM – medial portion of the dorsolateral nucleus of the thalamus; lMAN – lateral portion of the magnocellular nucleus of the anterior nidopallium; NIf- nucleus interface; RA – robust nucleus of the arcopallium; Uva – nucleus uvaeformis; X – area X; nXIIts – tracheosyringeal part of the hypoglossal nucleus.
- supplemental material
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Supplemental Figure 2. Sound spectrograms of representative songs produced by a hearing bird (top) and other birds at one month (middle) and 6 months (bottom) after deafening. Note that songs continue to be well structured for at least 6 months after deafening.
