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The evolution of multisensory vocal communication in primates and the influence of developmental timing

Asif A. Ghazanfar

in Multisensory Development

Published in print June 2012 | ISBN: 9780199586059
Published online September 2012 | e-ISBN: 9780191741470 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199586059.003.0016
The evolution of multisensory vocal communication in primates and the influence of developmental timing

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This chapter reviews data suggesting that adult monkeys and humans (infants and adults) share behavioural and neural homologies in the domain of multisensory vocal communication. Yet, despite certain similarities in their multisensory capabilities, it is possible that neurodevelopmental processes leading to the development of these behaviours are different. While there are many putative developmental factors that could have a differential influence on the organization of the neocortex across species, one prominent factor may simply be the maturation rate of the brain. Differences in timing, and how they determine the magnitude of influence by sensory experience, mould brains into their species-typical forms. Thus, understanding the evolution of multisensory processes requires delving into the deep history of developmental processes.

Keywords: heterochrony; development of speech-reading; perceptual narrowing; brain maturation; neural pruning; precocial development; multisensory development

Chapter.  7205 words. 

Subjects: Cognitive Psychology

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