Whether it is barn-raising or crafting a business plan, humans are among the few creatures that are able to work well cooperatively. According to an evolutionary psychologist at the University of Pennsylvania, our success at cooperation results from three distinct personality types.
"In any given group of people, youl find three kinds of people: Cooperators, Free Riders, and what we call Reciprocators. Cooperators do the most work and Free Riders do as little as possible, but most of us are Reciprocators. We hold back a bit to determine the chances of success before devoting our full energy to a project," said Robert Kurzban, an assistant professor in Penn’s Department of Psychology. "We found that these traits remained fairly stable among people, and you could reliably predict how a group might perform if you know the percentage of each type of person in that group."
Kurzban and Daniel Houser of George Mason University present their findings this week in the Online Early Edition of the Proceedings of the National Academy of Sciences. The researchers used a computer-based experiment to assess the range of cooperative behaviors among people. While they cannot offer a complete explanation of how these traits might have evolved, they point to reciprocity as an important motive in human societal behavior. According to Kurzban, it could also provide a simple lesson on the power of internal communications to managers and group leaders.
Greg Lester | EurekAlert!
Amazingly flexible: Learning to read in your thirties profoundly transforms the brain
26.05.2017 | Max-Planck-Institut für Kognitions- und Neurowissenschaften
Fixating on faces
26.01.2017 | California Institute of Technology
Salmonellae are dangerous pathogens that enter the body via contaminated food and can cause severe infections. But these bacteria are also known to target...
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...
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....
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...
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...
23.10.2017 | Event News
17.10.2017 | Event News
10.10.2017 | Event News
23.10.2017 | Life Sciences
23.10.2017 | Physics and Astronomy
23.10.2017 | Health and Medicine