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Figure 1

From: Inhibitory cell populations depend on age, sex, and prior experience across a neural network for Critical Period learning

Figure 1

Zebra finch system for developmental song learning. (a) Timeline of Posthatch (P) development with male images at ages relevant to tutor song memorization, and showing the multiple types of learning required for tutor song copying and adult song crystallization. (b) Simplified schematic of the brain network for song learning and production. Major brain areas of the network quantified here are shaded. Blue = nodes necessary for sensorimotor learning during development, Area X and the lateral magnocellular nucleus of the anterior nidopallium (LMAN). Red = motor output pathway, including the robust nucleus of the arcopallium (RA). Purple = node in both sensorimotor and motor pathways (HVC, proper name), Yellow = auditory forebrain (AF) required for tutor song memorization, which has three major components (not shown): primary auditory cortex Field L, and higher order association areas caudomedial nidopallium (NCM) and caudal mesopallium (CM).

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