Navigation Links
Brain Scans Show Differences in Cocaine Addicts
Date:5/28/2009

Regions affected when thinking about drugs could be targets for treatments, researchers say

THURSDAY, May 28 (HealthDay News) --Cocaine users appear to have less activity in the parts of their brains that monitor behaviors and emotions, a finding that researchers think may make them more vulnerable to addiction to the drug, a new research shows.

Using MRI scans, the researchers saw there were issues in these regions of the brain when cocaine users were given a test in which fast, correct answers -- some dealing specifically with drug use -- were rewarded with money. The issues persisted even when the addicts did as well as non-cocaine users on these tests.

"Whether these brain differences are an underlying cause or a consequence of addiction, the brain regions involved should be considered targets for new kinds of treatments aimed at improving function and self-regulatory control," study author Rita Goldstein, a psychologist at the U.S. Department of Energy's Brookhaven National Laboratory, said in a news release issued by the lab.

The study results appear online this week in the Proceedings of the National Academy of Sciences.

In the experiment, a group of active cocaine users and demographically similarly but healthy non-users had to push a button that corresponded to a word related to either drug use (e.g., crack, addict) or a neutral term, depending on the scenario. Fast, accurate answers could earn the test subjects up to a maximum of $75 for the entire experiment.

Brain imaging showed that the part of the brain that normally becomes active when people monitor their own behavior was far quieter in the cocaine users, especially during the parts of the test in which no monetary rewards were being offered and only neutral terms were being used -- sections considered the least "interesting," according to the researchers. Participants who used cocaine most often during the previous month
'/>"/>

Copyright©2009 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Draining away brains toxic protein to stop Alzheimers
2. Vision restoration therapy shown to improve brain activity in brain injured patients
3. Clinical depression linked to abnormal emotional brain circuits
4. Brain imaging reveals breakdown of normal emotional processing
5. Brain cells work differently than previously thought
6. Vaccine Stops Alzheimers Brain Tangles
7. Research may unlock mystery of autisms origin in the brain
8. Scientists Spot Brains Free Will Center
9. Free will takes flight: how our brains respond to an approaching menace
10. Alcoholics With Cirrhosis Have More Brain Damage
11. Brain Lesions Predict MS Progression
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Brain Scans Show Differences in Cocaine Addicts
(Date:4/17/2014)... genetic variant specifically associated with the risk of ... per cent of all breast cancer cases. , ... sub-type, called invasive lobular carcinoma, gives researchers important ... kind of breast cancer, which can be missed ... in the journal PloS Genetics , was ...
(Date:4/17/2014)... Biology and Medicine a multidisciplinary research team ... in the Institute of Genomic Biology (IGB) on ... describe their recent work on subcellular redox homeostasis. ... functions including energy metabolism, signaling, and transcriptional processes. ... cellular behavior, redox status has been recognized as ...
(Date:4/17/2014)... Jon McCullers, MD, was recently invited to submit ... Nature Reviews Microbiology , one of the world,s ... infectious disease specialist, and chair of the Department ... Science Center, analyzed the epidemiology and microbiology of ... as well as more recent 2009 novel H1N1 ...
(Date:4/17/2014)... as 10 million older Americans suffer from depression, often ... However, new research a project that followed the ... years found that Internet use among the elderly ... 30 percent. , "That,s a very strong effect," said ... information studies and media who led the project. "And ...
(Date:4/17/2014)... School of Medicine (BUSM) have discovered that the ... experimental model. The findings, reported in the ... may lead to more effective treatments for alcoholism. ... the leading causes of illness and death in ... by limiting the productivity of workers and necessitating ...
Breaking Medicine News(10 mins):Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 3Health News:Live cell imaging reveals distinct alterations of subcellular glutathione potentials 2Health News:Internet use can help ward off depression among elderly 2Health News:BUSM researchers find anti-seizure drug may reduce alcohol consumption 2
... Scholars Program has granted 11 geriatric social work researchers ... support for projects that will improve healthy outcomes for the ... year is a partnership with the Veterans Health Administration ... are PhD-level social workers from the VA who will be ...
... Survival rates of wealthier patients and those younger than ... brain tumor, have improved since 2000, whereas rates for ... have remained stagnant, according to an abstract being presented ... in Chicago by Thomas Jefferson University Hospital researchers on ...
... Faculty of Medicine & Dentistry are trying to reverse ... of the top two killers in Canada. , ... University of Alberta and Edie Pituskin, a registered nurse ... are starting what is called the MANTICORE clinical trials. ...
... HealthDay Reporter , THURSDAY, June 2 (HealthDay News) -- Although ... to powerful medications more HIV-infected Americans are living longer and ... close of 2008 there were 1,178,350 people in the United ... they are infected, according to researchers from the U.S. Centers ...
... University of Louisville researchers are one step closer ... longer work because of disease or damage from treatment ... Darling, PhD, professor, Department of Oral Health and Rehabilitation, ... protein sorting mechanism used by the salivary gland. The ...
... as hepatitis C (HCV) are typically recommended for liver ... patients who question whether less invasive testing is available, ... serum markers are two such diagnostic options reviewed in ... Hepatology , a journal of the American Association for ...
Cached Medicine News:Health News:Hartford Program issues geriatric social work awards, forms VA partnership 2Health News:Hartford Program issues geriatric social work awards, forms VA partnership 3Health News:ASCO: Glioblastoma in the 21st century: Wealthier patients living longer than poorer patients 2Health News:U of Alberta researchers hoping to stop heart disease in cancer patients before it starts 2Health News:More Than 1 Million Americans Now Living With HIV: CDC 2Health News:More Than 1 Million Americans Now Living With HIV: CDC 3Health News:UofL researchers uncover mechanism in saliva production 2Health News:Noninvasive diagnostics may offer alternative to liver biopsy for assessing liver fibrosis 2
(Date:1/15/2014)... Ohio , Jan. 15, 2014  A novel wearable injector ... easy and painless for patients to self-inject prescription drugs in ... disorders, including cancer, blood diseases, autoimmune deficiencies, and genetic disorders.  ... to grow to $220B by 2018, according to analysts.   Many ...
(Date:1/14/2014)... AUSTIN, Texas , Jan. 14, 2014  Luminex Corporation (Nasdaq: ... report results for the fourth quarter of 2013 on Monday, ... scheduled for release after the close of trading. ... a conference call to discuss the operating highlights and financial ...
(Date:1/14/2014)... Calif. , Jan. 14, 2014 The Brandeis Medical Center, ... Angeles a premier and affordable laser tattoo removal experience ... Dr. Brandeis, focus is in providing high quality cosmetic services with ... patients. " Southern California has seen ...
Breaking Medicine Technology:Enable Injections Presents A New Class of Injectors for Drug Delivery at PEPTalk, Drug Delivery Partnership Meetings 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 3Beverly Hills Physician Features Tattoo Removal with the Astanza Duality Laser, Offers $99 Special 2
... 2011 Omeros Corporation (Nasdaq: OMER ) today ... Regents of the University of California to a new series ... advance in the control of surgical and traumatic bleeding. ... represents a potential life-saving treatment for patients. With the withdrawal ...
... 5, 2011 CutisPharma, Inc. announced the introduction ... Mary,s Mouthwash compounding kits. These products complete the ... line already includes FIRST® - Mouthwash BLM, and ... FIRST® - Duke,s Mouthwash are comparable to those ...
Cached Medicine Technology:Omeros Licenses Novel Antifibrinolytic Agents 2Omeros Licenses Novel Antifibrinolytic Agents 3Omeros Licenses Novel Antifibrinolytic Agents 4CutisPharma Launches New Prescription Mouthwash Kits Expanding Product Line 2
... PLUS pachometers are acknowledged to be the ... pachometers available. These benefits are due to ... and smallest tip footprint available coupled with ... for every displayed reading. Thus corneal thickness ...
... versatile and uncomplicated use of the Leica ... obtained make it the instrument of choice ... cryostat applications. The open top stainless steel ... accessible and offers ample space for convenient ...
... the new style of Bright cryostat. ... OTF/AS cryostat, the new OTF5000 incorporates ... ever-reliable and powerful 5040 microtome. A ... package deals makes the range of ...
... The Leica TP1020 product family are ... a perfect combination of approved technology with ... processing and maximum safety for tissues at ... engineering design based on proven precision mechanics ...
Medicine Products: