HOME >> MEDICINE >> NEWS
Emory brain imaging studies reveal biological basis for human cooperation

Functional MRI scans have revealed a "biologically embedded" basis for altruistic behavior, with several characteristic regions of the brain being activated when players of a game called "Prisoner's Dilemma" decide to trust each other and cooperate, rather than betray each other for immediate gain, say researchers from Emory University. They report on their study in the July 18 issue of the journal Neuron, published by Cell Press.

For many years, evolutionary biologists, behaviorists, economists and political scientists have attempted to understand why cooperation exists between human beings, even though that cooperation may not result in a direct or immediate reward. This unselfish behavior called "altruism" is almost uniquely a human trait.

Up until now, almost all brain imaging experiments that have studied the social brain have done so by exposing subjects to static 2-D images inside the scanner. "This study represents an attempt to learn about the social brain by scanning people as they are engaged in a true social interaction," said James K. Rilling, Ph.D., principal investigator in the Emory study, who is currently serving a postdoctoral fellowship at Princeton University. In the Fall of 2003, Dr. Rilling will return to Emory as a faculty member with a joint appointment in the Center for Behavioral Neuroscience (CBN) at Emory University School of Medicine and the Emory University Department of Anthroplogy.

In two separate experiments, the researchers used fMRI to scan the brains of 36 women while they played the "Prisoner's Dilemma Game," a decades-old model for cooperation based on reciprocal altruism. Two players independently chose to either cooperate with each other or not (defect), and each was awarded a sum of money that depended upon the interaction of both players' choices in that round.

In the first experiment, 19 subjects were scanned in four game sessions designed to observe neural function during coo
'"/>

Contact: Kathi Ovnic
covnic@emory.edu
404-727-9371
Emory University Health Sciences Center
17-Jul-2002


Page: 1 2 3

Related medicine news :

1. Emory Study finds HIV is not an independent risk factor for severe heart disease
2. Emory cardiologists present research at AHA scientific sessions in New Orleans, Nov. 7 - 10
3. Emory study finds mental health and heart disease tightly linked
4. Emory conference to educate health professionals about metabolic syndrome
5. Emory researcher examines effects of antiepileptic drugs on pregnant women and their offspring
6. Emory researchers find race and gender gaps in treatment of heart attack
7. Emory, GlaxoSmithKline, NIMH enter public-private partnership to develop new drugs for depression
8. Emory and CDC scientists explore why most breastfed infants of HIV-positive mothers resist infection
9. Emory scientists find marker for long-term immunity
10. Emory scientists find oral tetrahydrobiopterin can reduce high blood pressure
11. Emory scientists link atrial fibrillation with decrease in nitrous oxide

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


(Date:11/14/2018)... ... ... Nanovis , a leader in nanomedicine for the spine, today announced ... devices. , With over 5,000 FortiCore interbodies now implanted, Nanovis plans to further ... with the addition of 22 mm and 25 mm lengths that can be rotated ...
(Date:11/13/2018)... ... November 13, 2018 , ... ... announced today the opening of its newest laboratory located in Cary, NC. Seated ... provide comprehensive services to top U.S. manufacturers and brings additional jobs to the ...
(Date:11/13/2018)... ... 13, 2018 , ... Dahryn Trivedi is on a mission ... the arena of science. , Dahryn has impacted thousands of individuals around the ... relief, inner peace, mental clarity, enhanced intuition, greater happiness and a deep feeling ...
(Date:11/13/2018)... ... 2018 , ... Today, MIT-born startup Atolla launched ... kit includes at home skin analysis tools for measuring oil, moisture, and pH ... formulates the serum to combat a user’s specific skin issues (such as irritation, ...
(Date:11/13/2018)... ... 13, 2018 , ... As part of a new focus ... Medical Technologies, Inc. and has an option to acquire the company, exercisable from ... Their innovative medical technology helps physicians treat their patients through minimally invasive procedures. ...
Breaking Medicine News(10 mins):
(Date:11/13/2018)... ATLANTA (PRWEB) , ... November 13, 2018 , ... ... digital marketing agency offering website design, SEO, social media, digital advertising and physician ... Physicians, hospitals, dentists, and healthcare professionals looking to successfully grow their practice can ...
(Date:11/13/2018)... YORK (PRWEB) , ... November 13, 2018 , ... Thanks to a generous group of ... year, offering our supporters and new donors the chance to double their impact with a ... up to a total of $700,000. , “In the Sermon on the Mount, Jesus tells ...
(Date:11/13/2018)... ... 13, 2018 , ... Through its Microbiome Grant Initiative ... study design, planning, sample collection, and analysis to a team of cancer researchers ... of Clinical Medicine, to compare the gut microbiome in individuals with MM, individuals ...
Breaking Medicine Technology:
Cached News: