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A new puzzle for the evolution of speech?

Published online by Cambridge University Press:  01 August 1998

Christian Abry
Affiliation:
Institut de la Communication Parlée, BP 25, F-38040, Grenoble Cedex 9, [email protected]
Louis-Jean Boë
Affiliation:
Institut de la Communication Parlée, BP 25, F-38040, Grenoble Cedex 9, [email protected]
Rafael Laboissière
Affiliation:
Institut de la Communication Parlée, BP 25, F-38040, Grenoble Cedex 9, [email protected]
Jean-Luc Schwartz
Affiliation:
Institut de la Communication Parlée, BP 25, F-38040, Grenoble Cedex 9, [email protected]

Abstract

We agree with MacNeilage's claim that speech stems from a volitional vocalization pathway between the cingulate and the supplementary motor area (SMA). We add the vocal self- monitoring system as the first recruitment of the Broca-Wernicke circuit. SMA control for “frames” is supported by wrong consonant-vowel recurring utterance aphasia and an imaging study of quasi-reiterant speech. The role of Broca's area is questioned in the emergence of “content,” because a primary motor mapping, embodying peripheral constraints, seems sufficient. Finally, we reject a uniquely peripheral account of speech emergence.

Type
Open Peer Commentary
Copyright
© 1998 Cambridge University Press

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