Abstract
Transganglionic and retrograde tracing procedures were applied to peripheral and central trigeminal structures in hatchling ring doves. The organization of the trigeminal ganglion, its somatotopic projections upon the principal sensory nucleus (PrV), and the projections of PrV upon the telencephalon are similar in adult and hatchling Columbiformes. The results suggest that development of feeding patterns in these species involves experiential differentiation of trigeminal sensorimotor circuits present at hatching.
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