Monkey 'pay-per-view' study could aid understanding of autism

DURHAM, N.C. -- Researches have found that monkeys will "pay" juice rewards to see images of high-ranking monkeys or female hindquarters. They say their research technique offers a rigorous laboratory approach to studying the "social machinery" of the brain and how this machinery goes tragically awry in autism -- a disease that afflicts more than a million Americans and is the fastest growing developmental disorder.

In an article published early online by the journal Current Biology, Duke University Medical Center neurobiologists Michael Platt, Robert Deaner and Amit Khera describe experiments in which they gave male rhesus macaque monkeys juice rewards for glancing at either a neutral target on a computer screen or images of other monkeys. By systematically varying the juice rewards and the images -- including a gray square, higher-ranking or lower-ranking monkeys and female hindquarters -- the researchers could precisely measure how much reward a monkey would "pay" to see which images.

The researchers found that the monkeys would forego a significant amount of reward to see an image of a higher-ranking monkey or of female hindquarters. In contrast, the monkeys had to be "paid" more juice to view lower-ranking monkeys.

The research was sponsored by The National Institute of Mental Health and the Cure Autism Now Foundation. It will be published in the March 2005 issue of Current Biology.

The aim of the study, said Platt, was to bring into a controlled laboratory setting the kinds of social judgments that monkeys were observed to make in the wild.

"Decades of studies of monkeys in the wild have indicated that they act as if they make judgments about dominance rankings and of the importance of other individuals for their own reproductive success," said Platt. "But there have been no real quantitative experimental demonstrations that monkeys actually process this information and use it in decision-making.

"More b

Contact: Dennis Meredith
Duke University Medical Center

Page: 1 2 3

Related medicine news :

1. Monkey virus may hold clue for development of common blood cancer
2. Monkeypox in the USA
3. Monkeys consciously control a robot arm using only brain signals
4. New Vaccine Provides Protection From HIV In Monkeys
5. First head-to-head study to compare lidoderm patch and Celebrex in treating pain
6. UMaine study looks at infants and chronic nighttime crying
7. Chronic pain treatments more effective when taken together, new study shows
8. UNC study: Most N.C. family practitioners engage in unrecognized community service
9. New study in Nature demonstrates protection against cell death during heart attack
10. UCSF study offers insight into human circadian rhythms
11. International breast cancer prevention study launches in the United States and Canada

Post Your Comments:

(Date:8/31/2020)... ... , ... Just found out your dear friend has cancer? , It’s hard to hear your ... shares their diagnosis. Once the shock wears off, the questions and fears can be overwhelming. ... best ways to help? Words are failing me. I’m scared. I want to DO something. ...
(Date:8/31/2020)... ... August 31, 2020 , ... Colorado State University Global (CSU ... affordable online education – is proud to announce its new master’s degree in ... its kind in the nation, the 60-credit hour program is designed to provide ...
(Date:8/31/2020)... ... August 31, 2020 , ... In an effort to give back to ... 10 percent of each hotel room booked with a special new rate code to ... Indiana (RMHC-CNI) , effective immediately. Donations will be applied to any room type, ...
(Date:8/28/2020)... ... 28, 2020 , ... Ernst & Young LLP (EY US) ... Of The Year® 2020 Florida Award finalist. Now in its 34th year, the ... growth and prosperity as they build and sustain successful businesses that transform our ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Integrated ... Miami is the first Florida school to deploy its breakthrough Mobile Biodefense Indoor Air ... airborne COVID-19. True North Classical Academy plans to fully reopen equipped with the filtration ...
Breaking Medicine News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... While coronavirus cases continue to increase across ... and community organizations remain closed. Because about 80% of blood donations are made at ... blood donors and blood drive hosts to ensure blood products are readily available for ...
(Date:8/31/2020)... (PRWEB) , ... August 31, 2020 , ... If you live in New York City ... real estate part makes sense, it’s the law of supply and demand, but are plastic ... has a significant percentage of their patients that make the four-hour trip to have ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Dr. ... reproductive and endoscopic surgeon and serves as a clinical professor in the Department of ... of the American Laparoscopy Society & Pacific Coast Reproductive Society and is a Clinical ...
Breaking Medicine Technology:
Cached News: