Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Rhesus monkeys reason about perspectives of others in obtaining food

15.03.2005


Rhesus monkeys consider whether someone can or cannot see them when trying to steal food, indicating they have the ability to reason about the mental states of others, according to a study published this month in Current Biology.



In each of six experiments, two people stood in front of a platform, each with a grape attached to the platform. The experiments created competitive conditions, the monkeys were competing with the humans for the grapes.

The 115 monkeys tested only took the grape when they could tell that a person was not looking at them. The experiments varied from one person looking at the monkey and the other with their back turned, to one person having their eyes covered with cardboard and the other with only their mouth covered with cardboard.


"What we are interested in is whether monkeys can reason about the mental states of others," said Jonathan Flombaum, a graduate student in Yale’s Department of Psychology and the first author of the study. "Seeing is the most elementary piece of this. The simplest mental state is perception, what you see."

The experiments were conducted with semi-free-ranging rhesus monkeys on the island of Cayo Santiago in Puerto Rico.

Flombaum said the research could help shed light on the causes of autism. "There are many studies showing that autistic children don’t look at the eyes of others in the ways that other individuals do in the course of social interactions, and also that autistic children don’t use eye gaze information to make social and mental judgments about others," he said.

The senior author was Laurie Santos, an assistant professor at Yale. The research was supported by a National Science Foundation graduate research fellowship and the Yale University Moore Fund grant.

Jacqueline Weaver | EurekAlert!
Further information:
http://www.yale.edu

More articles from Life Sciences:

nachricht The birth of a new protein
20.10.2017 | University of Arizona

nachricht Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>