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Curr Opin Neurobiol. 2014 Oct;28:42-7. doi: 10.1016/j.conb.2014.06.002. Epub 2014 Jul 5.

Vocal learning beyond imitation: mechanisms of adaptive vocal development in songbirds and human infants.

Author information

1
Department of Psychology, Hunter College, City University of New York, United States. Electronic address: otcherni@hunter.cuny.edu.
2
Department of Psychology, New York University, United States.

Abstract

Studies of vocal learning in songbirds typically focus on the acquisition of sensory templates for song imitation and on the consequent process of matching song production to templates. However, functional vocal development also requires the capacity to adaptively diverge from sensory templates, and to flexibly assemble vocal units. Examples of adaptive divergence include the corrective imitation of abnormal songs, and the decreased tendency to copy over-abundant syllables. Such frequency-dependent effects might mirror tradeoffs between the assimilation of group identity (culture) while establishing individual and flexibly expressive songs. Intriguingly, although the requirements for vocal plasticity vary across songbirds, and more so between birdsong and language, the capacity to flexibly assemble vocal sounds develops in a similar, stepwise manner across species. Therefore, universal features of vocal learning go well beyond the capacity to imitate.

PMID:
25005823
PMCID:
PMC4177410
DOI:
10.1016/j.conb.2014.06.002
[Indexed for MEDLINE]
Free PMC Article

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