HOME >> BIOLOGY >> NEWS
Ape gestures offer clues to the evolution of human communication

Researchers at the Yerkes National Primate Research Center, Emory University, have found bonobos and chimpanzees use manual gestures of their hands, feet and limbs more flexibly than they do facial expressions and vocalizations, further supporting the evolution of human language began with gestures as the gestural origin hypothesis of language suggests. This study appears in the current issue of the Proceedings of the National Academy of Sciences.

Working with two groups of bonobos (13 animals) and two groups of chimpanzees (34 animals), Yerkes researchers Amy Pollick, PhD, and Frans de Waal, PhD, distinguished 31 manual gestures and 18 facial/vocal signals. They found both species used facial/vocal signals similarly, but the same did not hold true for the manual gestures. Rather, the researchers found both within and between species the manual gestures were less closely tied to a particular emotion and, thereby, serve a more adaptable function. For example, a single gesture may communicate an entirely different message depending upon the social context in which it is used.

"A chimpanzee may stretch out an open hand to another as a signal for support, whereas the same gesture toward a possessor of food signals a desire to share," said Pollick. "A scream, however, is a typical response for victims of intimidation, threat or attack. This is so for both bonobos and chimpanzees, and suggests the vocalization is relatively invariant," Pollick continued.

By studying similar types of communication in closely related species, researchers are able to determine shared ancestry. We know gestures are evolutionarily younger than facial expressions and vocalizations, as shown by their presence in apes and humans but not in monkeys. "A gesture that occurs in bonobos and chimpanzees as well as humans likely was present in the last common ancestor," said Pollick. "A good example of a shared gesture is the open-hand begging gesture, used by both ap
'"/>

Contact: Emily Rios
erios@rmy.emory.edu
404-727-7732
Emory University
30-Apr-2007


Page: 1 2

Related biology news :

1. New blood test might offer early warning of deep belly fat
2. UCF nanoparticle offers promise for treating glaucoma
3. Lucky 13 as new gene discovery offers further hope for childhood blindness
4. Largest synthetic gene ever built offers insights into anti-malarial drug resistance
5. Soils offer new hope as carbon sink
6. Gene therapy offers new hope for treatment of peripheral neuropathy
7. Sheep offer model for undernourishment in pregnant teen girls
8. Study of protein folds offers insight into metabolic evolution
9. Soy estrogens and breast cancer: Researcher offers overview
10. NIST building software offers green product advice
11. Scientists offer new view of photosynthesis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/15/2016)... Advancements in biometrics will radically ... wellbeing (HWW), and security of vehicles by ... vehicles begin to feature fingerprint recognition, iris ... monitoring, brain wave monitoring, stress detection, fatigue ... detection. These will be driven by built-in, ...
(Date:12/15/2016)... 14, 2016 "Increase in mobile transactions is ... mobile biometrics market is expected to grow from USD ... 2022, at a CAGR of 29.3% between 2016 and ... the growing demand for smart devices, government initiatives, and ... "Software component is expected to grow at a high ...
(Date:12/8/2016)... India , Dec. 8, 2016 Market Research Future ... Service Market. The global Mobile Biometric Security and Service Market is ... 2016 to 2022. Market Highlights: ... , , Mobile ... pace due to the increasing need of authentication and security from ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... PUNE, India , Jan. 19, 2017  Market Research Future ... The Global Market for Liquid Biopsy is growing rapidly and expected ... period. Market Highlights ... The Global Liquid Biopsy Market has been assessed as ... high growth figures and boom in the coming future. There has ...
(Date:1/19/2017)... Research and Markets ... announced the addition of the "Implantable Biomaterials Market ... report to their offering. Report Highlights: ... analysis on current and future market trends to identify the investment opportunities ... the base numbers Key market trends across the business ...
(Date:1/19/2017)... Md. and GAITHERSBURG, Md. ... (NYSE MKT: PIP) and Altimmune, Inc., a privately-held ... signing of a definitive agreement for the merger ... Altimmune,s current investors include Novartis Venture Fund, HealthCap, ... will be a fully-integrated and diversified immunotherapeutics company ...
(Date:1/19/2017)... ... 2017 , ... The American Medical Informatics Association (AMIA) today ... Policy. Specifically, the nation’s leading informatics experts, said data sharing plans should be ... recommended that NIH earmark funding for researchers to produce and execute data sharing ...
Breaking Biology Technology:
Cached News: