Human faces are slower than chimpanzee faces.

Human faces are slower than chimpanzee faces.

While humans (like other primates) communicate with facial expressions, the evolution of speech added a new function to the facial muscles (facial expression muscles). The evolution of speech required the development of a coordinated action between visual (movement of the lips) and auditory signals...

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Bibliographic Details
Main Authors: Anne M Burrows, Lisa A Parr, Emily L Durham, Lea C Matthews, Timothy D Smith
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4206419?pdf=render

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