Navigation Links
Who's bad? Chimps figure it out by observation
Date:3/26/2008

Chimpanzees make judgments about the actions and dispositions of strangers by observing others behavior and interactions in different situations. Specifically, chimpanzees show an ability to recognize certain behavioral traits and make assumptions about the presence or absence of these traits in strangers in similar situations thereafter. These findings, by Dr. Francys Subiaul - from the George Washington University in Washington DC - and his team, have just been published online in Animal Cognition, a Springer journal.

Character judgments are an essential feature of cooperative exchanges between humans, and we use them to predict future behavioral interactions. A system for attributing reputation is therefore expected in any species which needs to assess the behavior of others and to predict the outcomes of future interactions. Chimpanzees have sophisticated social skills and there is evidence that primates eavesdrop and benefit from third-party interactions. Could they have a system for forming reputation judgments across a wide variety of contexts like humans"

In a series of three experiments, Dr. Subiaul and colleagues looked at whether chimpanzees learn the reputation of strangers indirectly by observation, or by first-hand experience. Seven chimpanzees observed unfamiliar humans either consistently give (generous donor) or refuse to give (selfish donor) food to either a familiar human recipient or another chimp.

In the first experiment, after observing humans either give or refuse food to familiar humans, chimps were in turn given the opportunity to gesture to either the selfish or the generous human. There was no marked preference for either donor. However, in a second experiment, the researchers evaluated whether prolonged observation and first-hand experience would allow chimps to generalize this social rulepertaining to the reputation of strangersto new humans. In this experiment, the chimpanzees showed a strong preference for the new generous donor. They were able to predict which new donor was generous, based entirely on observation. In a third experiment, chimpanzees (rather than humans) were the recipients of either selfish or generous acts. The results of this last experiment replicated the results of the second experiment in a new context and using novel generous and selfish acts, demonstrated that chimpanzees are flexible and astute social problem-solvers, capable of attributing reputation to strangers by eavesdropping on interactions between others.

The authors conclude that their results demonstrate chimpanzees ability to infer stability in an individuals character or behavior over time through observation an inference that underlies the ability to make reputation judgmentsThis ability may have served as a catalyst to the evolution of various uniquely human traits such as shared intentionality, language and reasoning.


'/>"/>

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer
Source:Eurekalert

Related biology news :

1. Group selection, a theory whose time has come...again
2. University of Toronto finds humans and chimps differ at level of gene splicing
3. Young chimps top adult humans in numerical memory
4. Down to earth remedies for chimps
5. Rwanda conservation effort to link isolated chimps to distant forest
6. Earth Observation essential for geohazard mitigation
7. Space technology put into service for global water resources observations
8. Stanford researchers make first direct observation of 3-D molecule folding in real time
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... , May 3, 2016  Neurotechnology, a ... the MegaMatcher Automated Biometric Identification System (ABIS) ... large-scale multi-biometric projects. MegaMatcher ABIS can process multiple ... using any combination of fingerprint, face or iris ... MegaMatcher SDK and MegaMatcher Accelerator , ...
(Date:4/19/2016)... DUBAI , UAE, April 20, 2016 ... can be implemented as a compact web-based "all-in-one" system ... in the biometric fingerprint reader or the door interface ... requirements of modern access control systems. The minimal dimensions ... the ID readers into the building installations offer considerable ...
(Date:3/31/2016)... , March 31, 2016 ... ) ("LegacyXChange" or the "Company") LegacyXChange is ... users of its soon to be launched online site ... https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide potential shareholders ... of DNA technology to an industry that is notorious ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... 27, 2016 , ... Newly created 4Sight Medical Solutions ... the healthcare market. The company's primary focus is on new product introductions, to ... that are necessary to help companies efficiently bring their products to market. , ...
(Date:6/24/2016)... TOKYO , June 24, 2016  Regular discussions on ... to take place between the two entities said Poloz. ... in Ottawa , he pointed to the ... and the federal government. ... Poloz said, "Both institutions have common economic goals, why not ...
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a ... eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced clinical research ... by providing practical tips, tools, and strategies for clinical researchers. , “The landscape ...
(Date:6/23/2016)... A person commits a crime, and the detective ... the criminal down. An outbreak of foodborne illness ... (FDA) uses DNA evidence to track down the bacteria that ... It,s not. The FDA has increasingly used a complex, cutting-edge ... illnesses. Put as simply as possible, whole genome sequencing is ...
Breaking Biology Technology: