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A Brain for SpeechBroken Symmetry

A Brain for Speech: Broken Symmetry [Early neurologists soon noticed that in most people, the language capacity appears to be localized in the left hemisphere of the brain. This has provided ground for many speculations about the functions of the left and the right sides of the brain. However, evidence has shown that language processing is largely bilateral but each hemisphere specializes in different functions. Language lateralization has been associated to handedness, and some authors have proposed that handedness drove the lateralization of language, which initially emerged as a hand-signing system. I review these ideas critically, proposing that in evolution, asymmetries in brain function may arise from different functional requirements, although there may be similar underlying genetic and developmental mechanisms.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A Brain for SpeechBroken Symmetry

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Publisher
Palgrave Macmillan UK
Copyright
© The Editor(s) (if applicable) and The Author(s) 2017. The author(s) has/have asserted their right(s) to be identified as the author(s) of this work in accordance with the Copyright, Designs and Patents Act 1988.
ISBN
978-1-137-54059-1
Pages
131 –172
DOI
10.1057/978-1-137-54060-7_4
Publisher site
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Abstract

[Early neurologists soon noticed that in most people, the language capacity appears to be localized in the left hemisphere of the brain. This has provided ground for many speculations about the functions of the left and the right sides of the brain. However, evidence has shown that language processing is largely bilateral but each hemisphere specializes in different functions. Language lateralization has been associated to handedness, and some authors have proposed that handedness drove the lateralization of language, which initially emerged as a hand-signing system. I review these ideas critically, proposing that in evolution, asymmetries in brain function may arise from different functional requirements, although there may be similar underlying genetic and developmental mechanisms.]

Published: May 8, 2017

Keywords: Language Lateralization; Left Hemisphere; Toolmaker; Superior Longitudinal Fasciculus; Michael Corballis

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