Navigation Links
Impulsive-antisocial personality traits linked to a hypersensitive brain reward system
Date:3/15/2010

Normal individuals who scored high on a measure of impulsive/antisocial traits display a hypersensitive brain reward system, according to a brain imaging study by researchers at Vanderbilt University. The findings provide the first evidence of differences in the brain's reward system that may underlie vulnerability to what's typically referred to as psychopathy.

The study in the current issue of the journal Nature Neuroscience was funded by the National Institute on Drug Abuse (NIDA), a component of the National Institutes of Health.

Psychopathy is a personality disorder characterized by a combination of superficial charm, manipulative and antisocial behavior, sensation-seeking and impulsivity, blunted empathy and punishment sensitivity, and shallow emotional experiences. Psychopathy is a particularly robust predictor of criminal behavior and recidivism.

Since psychopathic individuals are at increased risk for developing substance use problems, the Vanderbilt team decided to investigate possible links between the brain's reward system (activated by abused substances and natural reward), and a behavioral trait (impulsive/antisociality) characteristic of psychopathy. Researchers used two different technologies to measure the brain's reward response.

In the first experiment, positron emission tomography (PET) was used to image the brain's dopamine response in subjects who received a low oral dose of amphetamine. Dopamine is a brain chemical associated with reward and motivation.

In the second experiment, the same subjects participated in a game, in which they could make (or lose) money while their brains were being scanned using functional magnetic resonance imaging (fMRI) .

The results in both cases show that individuals who scored high on a personality assessment that teases out traits like egocentricity, manipulating others, and risk taking had a hypersensitive dopamine response system. The picture
'/>"/>

Contact: NIDA Press Team
media@nida.nih.gov
301-443-6245
NIH/National Institute on Drug Abuse
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Entrepreneur and TV Personality Bill Rancic to Host Mens Health Chicago Urbanathlon on October 20, 2007
2. The Personality of a Smile
3. L.A. Author, TV Personality and Substance Abuse Specialist Discusses Struggle to Break Bad-girl Syndrome Oct. 26-28 in Baltimore
4. Can shopping behavior indicate personality type?
5. Is Your Yoga Mat Lacking Personality?
6. Scientists identify brain abnormalities underlying key element of borderline personality disorder
7. Preschoolers nightmares less prevalent, are trait-like and associated with personality
8. Your personality type influences how much self-control you have
9. Personality Traits Dont Affect Breast Cancer Risk
10. TV Personality and Best-Selling Author Jenny McCarthy Comes to Detroit to Share Her Story of the Struggles and Triumphs of Raising Her Son, Evan, During a Day-Long Autism Workshop
11. Personality study shows risk of first depression episode late in life
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/30/2014)... (PRWEB) October 30, 2014 Dr. Joseph Furlin ... new website for his practices; OB GYN in Melrose ... . This website contains important information about each of ... well as downloadable patient forms in English and Spanish. ... the service pages on the website provide Dr. Furlin’s patients ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 Global prebiotics ... 2020, according to a new study by Grand View ... surging demand for sugar and fat free products owing ... the demand for prebiotics over the forecast period. , ... , Food & beverage was the largest application ...
(Date:10/30/2014)... 30, 2014 REV'D Provision Co. announced ... available through a unique service called, The Feed ... empower the everyday athlete. The Feed has taken the ... created a system to pass that information on to ... is now available on The Feed!” says REV’D® marketing ...
(Date:10/30/2014)... York (PRWEB) October 30, 2014 The ... (NAMS) came to a close on Saturday, October ... since the Society’s inception in 1989. NAMS is North ... and quality of life of all women during midlife ... aging. With over 2,000 physicians and thought leaders from ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 Sound Telecom, a ... infographic that will assist people any time they wonder, “Should ... the right answer by leading them through a series of ... to their initial query. , There are many considerations and ... to use an answering service . This decision infographic ...
Breaking Medicine News(10 mins):Health News:Dr. Joseph Furlin Launches New Website with Information about Care Services 2Health News:Prebiotics Market Is Expected To Grow At A CAGR Of 9.3% From 2014 To 2020: Grand View Research, Inc. 2Health News:Prebiotics Market Is Expected To Grow At A CAGR Of 9.3% From 2014 To 2020: Grand View Research, Inc. 3Health News:Prebiotics Market Is Expected To Grow At A CAGR Of 9.3% From 2014 To 2020: Grand View Research, Inc. 4Health News:Prebiotics Market Is Expected To Grow At A CAGR Of 9.3% From 2014 To 2020: Grand View Research, Inc. 5Health News:Nutrition Experts at TheFeed.com Get REV'D 2Health News:Nutrition Experts at TheFeed.com Get REV'D 3Health News:Highlights from The North American Menopause Society 25th Annual Meeting 2Health News:Highlights from The North American Menopause Society 25th Annual Meeting 3Health News:Sound Telecom Produces Decision Infographic to Aid Businesses 2
... ... at least one broken implant within 11 years. Smart Choice MRI offers the ... the first MRI clinic in Milwaukee to offer a silicone implant rupture screening ... to a 75% savings when compared to other MRI providers. , ...
... ... Dispensing System™ at ASCP as one option for addressing health reform’s new medication waste ... ... has surpassed 500 customers of its world-class software and proven hardware components to enhance ...
... mice, researchers found , WEDNESDAY, May 26 (HealthDay News) ... certain industrial chemicals while pregnant are at an increased ... animal study suggests. , The chemicals -- bisphenol-A (BPA) ... manufacturing purposes, and are known for interfering with hormonal ...
... 11 Thursday 15 July 2010, Stockholm, Sweden, Stockholm ... Excess body weight is a major risk factor for ... cancer, making obesity one of the leading preventable causes ... the most significant public health challenges of the 21st ...
... BEER-SHEVA, ISRAEL, May 26, 2010 -- A new study ... of the Negev (BGU) indicates that advanced age does ... that older drivers are more sensitive to potential hazards ... Hazard Perception," suggests that driving experience improves drivers, awareness ...
... In the May issue of Mayo Clinic ... pain management in cirrhotic patients. The physician experts reviewed ... no limits in the search to recommend a uniform ... patients. Cirrhosis is a substantial public health problem, ...
Cached Medicine News:Health News:Affordable Implant Screening: Protect Against "Silent" Ruptures 2Health News:Talyst Reaches Major Milestone: 500 Implementations in Long-Term Care, Acute Care and Corrections 2Health News:Talyst Reaches Major Milestone: 500 Implementations in Long-Term Care, Acute Care and Corrections 3Health News:Prenatal Exposure to Chemicals Linked to Breast Cancer Risk 2Health News:Media arrangements for the International Congress on Obesity 2Health News:Elderly drivers' ability to detect hazards doesn't degrade with age according to Ben-Gurion U. 2Health News:Mayo Clinic Proceedings: Review of pain management practices for cirrhosis patients 2
(Date:10/30/2014)... -- WuXi PharmaTech (Cayman) Inc. (NYSE: WX ), ... serving the pharmaceutical, biotechnology, and medical device industries, with ... the United States , today announced the ... Tel Aviv area of Israel.  ... of integrated R&D services to local customers. It will ...
(Date:10/30/2014)... 30, 2014   ViaDerma, Inc. (OTCQB: ... new products to market, has recently released a ... is a topical liquid tetracycline-based antibiotic that uses ... convert oral medication active ingredients into topical drugs. ... aid antibiotic to help prevent skin infection in ...
(Date:10/30/2014)... 2014 Molecular Profiles Ltd., a subsidiary of ... Maryland -based Xceleron have announced a ... clinical development that will be launched at AAPS in ... This partnership extends Molecular Profiles, new ROADMAP to ... this month. The company also has complementary collaborations in ...
Breaking Medicine Technology:WuXi AppTec Launches Representative Office in Israel, Forms Strategic Collaboration with Pontifax 2ViaDerma, Inc. Lead Product TetraStem Shown Effective in Fighting Staph Infections including MRSA 2ViaDerma, Inc. Lead Product TetraStem Shown Effective in Fighting Staph Infections including MRSA 3Molecular Profiles To Launch US Strategic Alliance At AAPS 2Molecular Profiles To Launch US Strategic Alliance At AAPS 3
... CINCINNATI, April 11, 2011 HealthWarehouse.com, Inc. (OTC: ... announced Consumer Reports found it to have among ... Lipitor, Nexium, Plavix, and Singulair. The ... rating pharmacies for price, accuracy, knowledge, and speed. ...
... TechniScan,s (OTC BB: TSNI) novel breast ultrasound technology ... Institute of Ultrasound Medicine,s annual conference in New York ... session on advanced breast ultrasound imaging, Michael Andre, Ph.D., ... of California, San Diego Moores Cancer Center that enlists ...
Cached Medicine Technology:Consumer Reports Finds HealthWarehouse.com Has Lowest Total Price for Lipitor, Nexium, Plavix, and Singulair 2TechniScan's Breast Imaging Science Featured at National Ultrasound Conference 2TechniScan's Breast Imaging Science Featured at National Ultrasound Conference 3
Preference Toric quarterly planned replacement lenses are durable, easy to handle and virtually maintenance free. Meeting the needs of those suffering from astigmatism, these soft contact lenses are ...
... fit for all astigmatic patients. Ideal ... who require excellent visual acuity and ... of disposable lenses; astigmatic spectacle wearers ... lenses; and spherically masked astigmatic patients ...
C 2.3K with lightweight headband: the practical alternative for spectacle-wearers. Delivered in protective designer case....
... Vitrasert implant is a device ... with Aids-related Cytomegalovirus (CMV) Retinitis. This ... CMV when compared with conventional intravenous ... embedded in a polymer-based system that ...
Medicine Products: