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Sign languages are problematic for a gestural origins theory of language evolution

Published online by Cambridge University Press:  12 August 2005

Karen Emmorey*
Affiliation:
Laboratory for Cognitive Neuroscience, The Salk Institute for Biological Studies, La Jolla, CA 92037 http://www-psy.ucsd.edu:80/~kemmorey
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Abstract:

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Sign languages exhibit all the complexities and evolutionary advantages of spoken languages. Consequently, sign languages are problematic for a theory of language evolution that assumes a gestural origin. There are no compelling arguments why the expanding spiral between protosign and protospeech proposed by Arbib would not have resulted in the evolutionary dominance of sign over speech.

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Type
Open Peer Commentary
Copyright
Copyright © Cambridge University Press 2005