Navigation Links
People with low risk for cocaine dependence have differently shaped brain to those with addiction
Date:1/17/2013

People who take cocaine over many years without becoming addicted have a brain structure which is significantly different from those individuals who developed cocaine-dependence, researchers have discovered. New research from the University of Cambridge has found that recreational drug users who have not developed a dependence have an abnormally large frontal lobe, the section of the brain implicated in self-control. Their research was published in the journal Biological Psychiatry.

For the study, led by Dr Karen Ersche, individuals who use cocaine on a regular basis underwent a brain scan and completed a series of personality tests. The majority of the cocaine users were addicted to the drug but some were not (despite having used it for several years).

The scientists discovered that a region in the frontal lobes of the brain, known to be critically implicated in decision-making and self-control, was abnormally bigger in the recreational cocaine users. The Cambridge researchers suggest that this abnormal increase in grey matter volume, which they believe predates drug use, might reflect resilience to the effects of cocaine, and even possibly helps these recreational cocaine users to exert self-control and to make advantageous decisions which minimize the risk of them becoming addicted.

They found that this same region in the frontal lobes of the brain was significantly reduced in size in people with cocaine dependence, confirming earlier research that had found similar results. They believe that at least some of these changes are the result of drug use, which causes drug users to lose grey matter.

They also found that people who use illicit drugs like cocaine exhibit high levels of sensation-seeking personality traits, but only those developing dependence show personality traits of impulsivity and compulsivity.

Dr Ersche, of the Behavioural and Clinical Neuroscience Institute (BCNI) at the University of Cambrid
'/>"/>

Contact: Genevieve Maul
gm349@admin.cam.ac.uk
44-012-237-65542
University of Cambridge
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Diet Plan To Lose Weight
2. How “The Healthy Way Diet” Can Help People Burn Fat Naturally – Health Review Center
3. Mayo Clinic: Skin problems, joint disorders top list of reasons people visit doctors
4. Dr. Sam Speron Tips On How People Can Spot Breast Implants
5. Many People Underestimate How Long a Cough Should Last
6. Burn Fat Fast
7. How "30 Days To Thin" Helps People Melt Fat Naturally and Effectively - Tony Nguyen
8. Increase Height Naturally
9. Can “Grow Taller 4 Idiots” Help People Boost Their Height Effectively – Health Review Center
10. Haiti can quell cholera without vaccinating most people, UF researchers estimate
11. Philadelphia Malpractice Lawyers at Console & Hollawell Explore Negligence as Overdoses from Prescription Painkillers Now Kill More People than Heroin
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/30/2015)... CA (PRWEB) , ... August 30, 2015 , ... ... announced a back to school special. The company is currently offering lice head checks ... In addition, the company is offering a 10% discount on their lice treatment products. ...
(Date:8/30/2015)... ... 30, 2015 , ... Certified Nutrition Businessman Reid Eckert agrees to extend his ... is a global sales and communications firm that offers U.S. brands a proven path ... relationship with Mr. Reid Eckert, as his interpretation of the nutritional needs of the ...
(Date:8/29/2015)... ... August 30, 2015 , ... Rio Salado College President ... the college’s Vice President of Strategic Initiatives and Information Services. O’Shea, who has served ... college expand its reach and impact through innovative technologies and strategies. , “I am ...
(Date:8/29/2015)... ... August 29, 2015 , ... ... two inventors from Miller Place, N.Y. "I specialize in manual therapy, and my ... addition, it can be used for additional muscle dysfunction throughout the body." , ...
(Date:8/29/2015)... ... , ... Brands like Toppik , Eau Thermale Avene and Bliss are ... threshold of $49.00 was required to qualify for free standard shipping,” said Jennifer Ramirez, ... for customers regardless of the item’s selling price.” , With competitive pricing in the ...
Breaking Medicine News(10 mins):Health News:Lizzie’s Lice Pickers Announces Back to School Head Check Special and Discounted Lice Treatment Products 2Health News:Nutrition Guru Continues Relationship With Renowned Health and Wellness Company 2Health News:Rio Salado College Appoints New Vice President of Strategic Initiatives and Information Services 2Health News:Inventors and InventHelp Clients Develops Tension Reliever (LGI-1951) 2Health News:TheBeautyPlace.com Discounts Shipping on Select Brands 2
... Marketing brand leaders are,increasingly finding value in the ... and in particular in use of the on-demand ... http://www.BestPracticeDatabase.com ). Although documents from the database ... have come to,find outstanding value in membership to ...
... Canadian Cancer Society shows that many cancer survivors in ... at risk for health problems, including their cancer returning. ... to look at ways to better support cancer survivors ... body weight, says Dr. Kerry Courneya, professor and Canada ...
... about the disease, researchers discover , , SUNDAY, April 20 ... wrenching, especially for family members of the patient. , ... blacks, are more likely to labor under misconceptions about ... part of aging, researchers are learning. , And that ...
... excess weight, , , SATURDAY, April 19 (HealthDay News) -- Pregnancy ... After all, a pregnant woman has to nourish two bodies ... is, the baby,s nutritional needs are only around 300 calories ... of pregnancy complications for both mother and child. , And, ...
... Free Playtex(R) Drop-Ins(R) Original Nurser Systems, WESTPORT, ... division of Energizer(R) Personal Care, the leader in ... in baby bottles by,announcing it will distribute one ... which are free of bisphenol A, a,chemical used ...
... of,Pediatrics (AAP) highlights the importance and success of ... Vaccines,have eliminated or reduced many of the most ... the nation,s public health efforts., According to ... immunization:, -- Over 13,000 people in the ...
Cached Medicine News:Health News:Best Practice Database Provides Exceptional Value to Marketing Executives 2Health News:Obesity, inactivity as common among cancer survivors as rest of Canadians, study shows 2Health News:Obesity, inactivity as common among cancer survivors as rest of Canadians, study shows 3Health News:Filling in the Alzheimer's 'Race Gap' 2Health News:Filling in the Alzheimer's 'Race Gap' 3Health News:Extra Pounds During and Between Pregnancies Can Pose Problems 2Health News:Extra Pounds During and Between Pregnancies Can Pose Problems 3Health News:Playtex(R) Offers Free Non-BPA Baby Bottles to Parents, Will Stop Using BPA in All Products This Year 2Health News:AAP Encourages Parents to Immunize Their Children 2
(Date:8/27/2015)... -- DURECT Corporation (Nasdaq: DRRX ) announced today ... healthcare conferences.  , James E. ... Rodman & Renshaw Investment Conference on Thursday, September 10 ... held at the St. Regis Hotel in ... of the presentation will be available by accessing ...
(Date:8/27/2015)... , Aug. 27, 2015 ieCrowd™ today ... the commercial development of the company,s supplemental oxygen ... Oxygen device, being developed by ieCrowd,s subsidiary Smart ... patient,s changing demand for oxygen based on level ... (k) submission for the Smart Oxygen device would ...
(Date:8/27/2015)... , Aug. 27, 2015  Eli Lilly and ... Stanley Global Healthcare Conference on Thursday, September 17, 2015. ... president of Lilly Oncology and Richard Gaynor , ... affairs for Lilly Oncology, will participate in a fireside ... A live audio webcast will be available on ...
Breaking Medicine Technology:DURECT to Participate in Upcoming Healthcare Conferences 2Smart Oxygen Solutions' Supplemental Oxygen Delivery Device Achieves FDA Regulatory Pathway Milestone 2Smart Oxygen Solutions' Supplemental Oxygen Delivery Device Achieves FDA Regulatory Pathway Milestone 3Smart Oxygen Solutions' Supplemental Oxygen Delivery Device Achieves FDA Regulatory Pathway Milestone 4Lilly to Participate in Morgan Stanley Global Healthcare Conference 2
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
Medicine Products: