Navigation Links
New findings shed light on why smokers struggle to quit
Date:1/5/2009

DURHAM, NC Just seeing someone smoke can trigger smokers to abandon their nascent efforts to kick the habit, according to new research conducted at Duke University Medical Center.

Brain scans taken during normal smoking activity and 24 hours after quitting show there is a marked increase in a particular kind of brain activity when quitters see photographs of people smoking.

The study, which appears online in Psychopharmacology, sheds important light on why it's so hard for people to quit smoking, and why they relapse so quickly, explains Joseph McClernon, an associate professor in the department of psychiatry and behavioral sciences at Duke University Medical Center.

"Only five percent of unaided quit attempts result in successful abstinence," says McClernon. "Most smokers who try to quit return to smoking again. We are trying to understand how that process works in the brain, and this research brings us one step closer."

The Duke researchers used a brain-imaging tool called functional MRI to visualize changes in brain activity that occurs when smokers quit. The smokers were scanned once before quitting and again 24 hours after they quit. Each time they were scanned while being shown photographs of people smoking.

"Quitting smoking dramatically increased brain activity in response to seeing the smoking cues," says McClernon, "which seems to indicate that quitting smoking is actually sensitizing the brain to these smoking cues."

Even more surprising, he adds, is the area of the brain that was activated by the cues. "We saw activation in the dorsal striatum, an area involved in learning habits or things we do by rote, like riding a bike or brushing our teeth. Our research shows us that when smokers encounter these cues after quitting, it activates the area of the brain responsible for automatic responses. That means quitting smoking may not be a matter of conscious control. So, if we're really going to help people quit, this emphasizes the need to do more than tell people to resist temptation. We also have to help them break that habitual response."

New treatment options at Duke are aiming to do just that. One area of research is focusing on the use of a nicotine patch prior to quitting smoking.

In previously published research, Jed Rose, Director of the Duke Center for Nicotine and Smoking Cessation Research and co-author of this paper as well, showed that wearing the patch and smoking a cigarette with no nicotine proved successful at breaking the learned behavior. "The smoking behavior is not reinforced because the act of smoking is not leading them to get the nicotine," Rose said. "Doing this before people actually quit helps them break the habit so they start smoking less. We're seeing people quit longer this way."


'/>"/>

Contact: Debbe Geiger
Debbe.Geiger@duke.edu
919-660-9461
Duke University Medical Center
Source:Eurekalert

Related medicine news :

1. Bionovo to Present Recent Findings of BN108, its Anticancer Agent, at the 31st Annual San Antonio Breast Cancer Symposium
2. Breast cancer in men: Mammography and sonography findings
3. Initial Survey Findings on Diabetes Awareness Released by PatientAssistance.com
4. Best Practice Database Provides Key Findings for Biopharma Product Launch Evaluation
5. Tibotec presents interim findings for TMC435, an investigational genotype 1 hepatitis C treatment
6. NABP Findings Underscore Dangers of Purchasing Prescription Medicine Online and From Foreign Sources
7. New National Public Opinion Survey Reveals Important Findings on Oral Health Care Perceptions
8. New findings may improve treatment of inherited breast cancer
9. Curemark CEO Presents Autism Findings at Prestigious Neurobiology Conference at Oxford
10. Endoscopic ultrasound highly accurate in evaluating ambiguous radiographic findings of the pancreas
11. Positive Findings Published on Emergent Technology for Treating Chronic Pain
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... Boca Raton, FL (PRWEB) , ... February 12, ... ... nation’s largest non-profit organization devoted exclusively to funding innovative lymphoma research and serving ... patient services – hosted over 250 members of South Florida’s philanthropic community at ...
(Date:2/12/2016)... ... February 12, 2016 , ... As a former television executive, owner Tal ... and no time to decompress, Rabinowitz found herself drawn to a casual meditation class ... impact on her life, implementing a 20-minute-per-day meditation practice with her team. After her ...
(Date:2/12/2016)... ... February 12, 2016 , ... Itopia, ... announced the integration of Clarity Intelligence Platform (CIP) into Cielo®, a discovery, migration ... business intelligence (BI) to their small and medium business (SMB) clients. ...
(Date:2/12/2016)... ... 12, 2016 , ... The Jones Agency, a family owned insurance company with ... a cooperative charity drive with the Tarrant Area Food Bank in the hopes of ... families in need, the Tarrant County Food Bank offers hope and security to the ...
(Date:2/12/2016)... ... February 12, 2016 , ... Donor Network West, the organ procurement organization that ... partnership with San Ramon Regional Medical Center. Under the collaboration, the first of its ... to accommodate a more certain time frame for donor families for the recovery of ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... Holdings, Inc. (NASDAQ: IPHS ), a leading international producer ... will host a live conference call on Tuesday, February 23, ... and full year 2015 results. --> ... and full year results will be issued on Monday, February ... --> The conference call can be accessed ...
(Date:2/12/2016)... , Feb. 12, 2016   HeartWare International, ... conference call and webcast to discuss its financial results ... 2015, on Thursday, February 25, 2016 at 8:00 a.m. ... prior to the conference call and webcast.  On the ... financial results, highlights from the fourth quarter and business ...
(Date:2/12/2016)...  Memorial Hermann Health System has teamed up with ... bring a one-of-a-kind experience to pediatric patients at ... as 360-degree video and Google Cardboard, Howard was able ... giving the patients and their families an unexpected, and ... on video . Memorial Hermann IRONMAN ...
Breaking Medicine Technology: