Navigation Links
Too Much Testosterone Linked to Inflated Ego: Study
Date:1/31/2012

TUESDAY, Jan. 31 (HealthDay News) -- Testosterone makes people more self-centered and less cooperative, a finding that may explain why group decisions can be affected by dominant individuals, researchers report.

Their study included 34 females who had never met. The women were divided into 17 pairs and asked to complete a series of tasks designed to assess their levels of cooperation. The tests were conducted on two separate days. On one day both women received a testosterone supplement. On the other day, they were given a placebo.

As expected, cooperation helped the pairs perform much better on the tasks than when individuals worked alone. Cooperation was normal when the women received the placebo, but was much less common after the women received the testosterone supplement, the investigators found.

Increased levels of testosterone were associated with the women behaving egocentrically and deciding in favor of their own selection over their partner's, said the researchers at the Wellcome Trust Center for Neuroimaging at University College London in England.

The findings were published in the Jan. 31 issue of the journal Proceedings of the Royal Society B.

"When we are making decisions in groups, we tread a fine line between cooperation and self-interest: too much cooperation and we may never get our way, but if we are too self-orientated, we are likely to ignore people who have real insight," study author Dr. Nick Wright said in a center news release.

"Our behavior seems to be moderated by our hormones -- we already know that oxytocin can make us more cooperative, but if this were the only hormone acting on our decision-making in groups, this would make our decisions very skewed," Wright explained.

"We have shown that in fact testosterone also affects our decisions, by making us more egotistical. Most of the time, this allows us to seek the best solution to a problem, but sometimes, too much testosterone can help blind us to other people's views," Wright noted. "This can be very significant when we are talking about a dominant individual trying to assert his or her opinion in, say, a jury."

Testosterone is naturally secreted in both men and women. Previous research suggests that testosterone influences a number of social behaviors. For example, female prisoners with higher levels of testosterone have been found to be more anti-social and more aggressive.

More information

The U.S. National Library of Medicine has more about hormones.

-- Robert Preidt

SOURCE: Wellcome Trust, news release, Jan. 31, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Testosterone deficiency affects male cancer survivors quality of life
2. Low Testosterone Raises Heart Death Rates in Impotent Men
3. Male obesity linked to low testosterone levels, study shows
4. Study shows costs and benefits of testosterone in birds
5. Middle-aged men: Could dwindling testosterone levels decrease sleep?
6. Testosterone May Make Women Less Trusting
7. Low Testosterone in Older Men Less Common Than Thought
8. Higher Testosterone Tied to Heart Trouble in Older Men
9. Higher testosterone may raise risk of heart disease in elderly men
10. Testosterone Gel Could Raise Heart Risks in Frail, Older Men
11. Testosterone Could Boost Health of Heart Failure Patients
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Too Much Testosterone Linked to Inflated Ego: Study
(Date:1/16/2017)... ... 16, 2017 , ... San Francisco dentist, Dr. Ben Amini , the ... device which is capable of taking digital impressions of teeth and gums. Conventional bite ... CAD CAM restorations , in terms of speed, efficiency and patient comfort. Increasingly, digital ...
(Date:1/15/2017)... ... January 15, 2017 , ... In this role, Courtney will be responsible for ... asthma & allergy friendly mark. This certification program was created by ASL and the ... to be more suitable for the 60+ million people living in the U.S. with ...
(Date:1/15/2017)... Cary, NC (PRWEB) , ... January 15, 2017 ... ... to announce that Albertsons Companies has achieved accreditation for its specialty care services. ... accreditation and its own in-house specialty care service for pharmacy patients. , Accreditation ...
(Date:1/15/2017)... ... 14, 2017 , ... Wondering where to go this Valentine's Day? Well, there ... for a romantic, lobster feast in the comfort of your own home. Lobster Gram ... dinners will be featured until February 15th, 2017. , Romantic Dinner one is ...
(Date:1/14/2017)... ... 2017 , ... Healthy living brand Moody Zook recently came ... With more and more people opting to go organic in their lifestyle, the ... to specific needs. , Moody Zook focused particularly on their newly launched activated ...
Breaking Medicine News(10 mins):
(Date:1/13/2017)... Research and Markets has announced the addition of the "Cystic ... ... (CF) is a progressive genetic condition and is the result of ... gene from both parents. The defective CFTR genes produce faulty CFTR ... of a thick and sticky mucus in the lungs and pancreas. ...
(Date:1/13/2017)... Jan. 13, 2017 Over the last 10 years ... (6% – 10% yoy) and are expected to deliver remarkable future growth. ... followed by Thailand , the Philippines ... Singapore .  A member of the G20 and with ... 40% of the SEA,s economic output and the largest pharma manufacturing base ...
(Date:1/12/2017)... The global peripheral intravenous catheter market ... US$ 3.8 Bn by 2016 end. Wide adoption of catheterization techniques ... demand for PIVC. Rising disease prevalence will play a key role ... is likely to remain the largest market; Asia Pacific ... ...
Breaking Medicine Technology: