Out of the Mouths of Primates, Facial Mechanics of Human Speech May Have Evolved
[Source: Science Daily]
The throat and facial movements that twist the air pushing through your vocal cords into words could be rooted in the well-meaning expressions primates exchange with each other, according to two recent studies based at Princeton University.
The researchers found that the oral-facial component of human speech mirrors the rhythm, development and internal dynamics of lip smacking, a friendly back-and-forth gesture performed by primates such as chimpanzees, baboons and macaques. The studies also show that the mechanics of primate lip smacking are distinct from those of chewing, similar to the separate mechanics of human speech and chewing.
These parallels suggest that in primates chewing and lip smacking — as with chewing and speech-related facial movement in humans — have separate neural controls, explained Asif Ghazanfar, an associate professor of psychology and the Princeton Neuroscience Institute, and a lead researcher for both
Read the Rest of this Article on Science Daily.com
PediaStaff is Hiring!All Jobs
PediaStaff hires pediatric and school-based professionals nationwide for contract assignments of 2 to 12 months. We also help clinics, hospitals, schools, and home health agencies to find and hire these professionals directly. We work with Speech-Language Pathologists, Occupational and Physical Therapists, School Psychologists, and others in pediatric therapy and education.