Document Detail


The evolution of speech: vision, rhythm, cooperation.
MedLine Citation:
PMID:  25048821     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A full account of human speech evolution must consider its multisensory, rhythmic, and cooperative characteristics. Humans, apes, and monkeys recognize the correspondence between vocalizations and their associated facial postures, and gain behavioral benefits from them. Some monkey vocalizations even have a speech-like acoustic rhythmicity but lack the concomitant rhythmic facial motion that speech exhibits. We review data showing that rhythmic facial expressions such as lip-smacking may have been linked to vocal output to produce an ancestral form of rhythmic audiovisual speech. Finally, we argue that human vocal cooperation (turn-taking) may have arisen through a combination of volubility and prosociality, and provide comparative evidence from one species to support this hypothesis.
Authors:
Asif A Ghazanfar; Daniel Y Takahashi
Publication Detail:
Type:  REVIEW     Date:  2014-7-18
Journal Detail:
Title:  Trends in cognitive sciences     Volume:  -     ISSN:  1879-307X     ISO Abbreviation:  Trends Cogn. Sci. (Regul. Ed.)     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9708669     Medline TA:  Trends Cogn Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Ltd. All rights reserved.
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