Navigation Links
Smokers quit after damage to brain region

Smokers with a damaged insula ?a region in the brain linked to emotion and feelings ?quit smoking easily and immediately, according to a study in the Jan. 26 issue of the journal Science.

The study provides direct evidence of smoking's grip on the brain.

It also raises the possibility that other addictive behaviors may have an equally strong hold on neural circuits for pleasure.

The senior authors of the study are Antoine Bechara and Hanna Damasio, both faculty in the year-old Brain and Creativity Institute at the University of Southern California, in collaboration with graduate students Nasir Naqvi, who was first author on the study, and David Rudrauf, both from the University of Iowa.

"This is the first study of its kind to use brain lesions to study a drug addiction in humans," Naqvi said.

In the 1990s, Antonio Damasio proposed the insula, a small island enclosed by the cerebral cortex, as a "platform for feelings and emotion." The Science study shows that the pleasure of smoking appears to rest on this platform.

"It's really intriguing to think that disrupting this region breaks the pleasure feelings associated with smoking," said Damasio, director of the institute and holder of the David Dornsife Chair in Neuroscience at USC.

"It is immediate. It's not that they smoke less. They don't smoke, period."

The finding raises the question of whether damage to the insula also could cause a person to quit other addictive behaviors. Can a brain lesion cure someone of their bad habits?

The answer is not yet known, Bechara said, but he suggested the phenomenon could be "generalizable" with respect to alcohol abuse, overeating and other addictions.

The discovery of the insula's role in addiction opens new directions for therapies, Bechara said, including possible drugs targeted to a region that "no one paid attention to."

"There is a lot of potential for pharmacological develo
'"/>

Source:University of Southern California


Page: 1 2

Related biology news :

1. Brain Scan Study of Smokers Reveals Signature of Craving
2. Smokers invite to test vaccine against nicotine addiction
3. Mouse brain cells rapidly recover after Alzheimers plaques are cleared
4. Does vitamin C help prevent or treat the common cold? Maybe not, after all.
5. Stem cell treatment improves mobility after spinal cord injury
6. Bad aftertaste? New sensory on/off switch may cure bane of artificial sweetener search
7. New type of rejection blocker protects kidneys after transplant
8. Hurricane aftermath: Infectious disease threats from common, not exotic, diseases
9. Bone marrow stem cells may heal hearts even years after heart attacks
10. Many smokers fail to quit after cancer diagnosis
11. Getting an evolutionary handle on life after reproduction
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Smokers quit after damage brain region

(Date:4/17/2014)... is available in German . ... recognise objects; they also provide us with a continuous stream ... around, fall or sit still in a car the ... on our retinas. Seemingly without effort, our brain calculates self-motion ... stable position and a steady gaze during our own movements. ...
(Date:4/17/2014)... in German . ... money demanded of him, he can expect his premises to ... fear of the consequences is enough to make restaurant owners ... which lay their eggs in other birds, nests. If the ... take their revenge by destroying the entire nest. Consequently, it ...
(Date:4/17/2014)... stark warning on the possible effects of gases such ... times that of carbon dioxide. Now a team of ... fully regenerable electron acceptors which helps explain why large ... being released to the atmosphere. However, there are worries ... into a vicious cycle to release large amounts of ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Methane climate change risk suggested by proof of redox cycling of humic substances 2
... 8, 2012) A transcription factor called Lyl-1 is necessary ... critical cells born in the thymus that coordinate the immune ... led by those from Baylor College of Medicine (www.bcm.edu) in ... progenitors (called early T lineage progenitor cells) are the first ...
... Zebrafish, popular as aquarium fish, now have an important ... studying human diseases. At the 2012 International Zebrafish ... presentations highlighted the utility of the zebrafish for examining ... potential treatment approaches for an impressive array of organ ...
... from surgery or battle wounds, ugly scars can affect body and ... FASEB Journal offers a new strategy to reduce ... describe how agents that block receptors for adenosine (a molecule generated ... to muscles) can be applied topically to healing wounds to reduce ...
Cached Biology News:Transcription factor Lyl-1 critical in producing early T-cell progenitors 2Zebrafish provide insights into causes and treatment of human diseases 2Zebrafish provide insights into causes and treatment of human diseases 3Zebrafish provide insights into causes and treatment of human diseases 4New York University scientists discover possible treatment to reduce scarring 2
(Date:1/15/2014)... Freeslate, Inc ., the leading provider of ... one of India’s top five pharmaceutical companies, has received ... for high throughput solid form screening. , Lupin, ... range of quality, affordable generic and branded formulations and ...
(Date:1/15/2014)... TAIPEI , Jan. 15, 2014 TaiGen Biotechnology ... an exclusive agreement with R-Pharm, a leading Russian pharmaceutical ... in the Russian Federation , ... Commonwealth Independent States (CIS). Nemonoxacin is a novel antibiotic for ...
(Date:1/14/2014)... 14, 2014 Carahsoft and CDS Federal ... 23, 2014 at 2pm EST (11am PST), “Natural Language ... focuses on how technology can turn raw, heterogeneous data ... government agencies. The online webinar will last approximately one ...
(Date:1/14/2014)... , Jan. 14, 2014  3D Communications, a leading provider of strategic ... business, and media events in the United States ... associate Virginia Cox , JD, is returning to the firm,s ... Cox re-joins 3D after more than two years of service ...
Breaking Biology Technology:Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2Former FDA Associate Commissioner Returns To 3D Communications 2
... , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.531 12/2001 , ... , , , , ... , Cell type , Yeast, ...
... , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.531 12/2001 , ... , , , , ... , Cell type , Yeast, ...
... Multiporator / Electroporator 2510 , , , , , , , ... Protocol No. 4308 915.527 04/2002 , , , ... , Microorganism , Propionibacterium ... type , Bacteria, gram positive, , ...
Cached Biology Technology:Saccharomyces cerevisiae 2Saccharomyces cerevisiae 2Propionibacterium freudenreichii 2
... IS System is ideal for developing single ... This system contains the new, improved, and ... The user can design specific templates for ... has fully integrated graphing and data regression ...
... Sweep- based acquision and analysis ... response type applications. Contains powerful ... flexible analysis functions including automated ... plotting. Also includes many electrophysiology ...
EDG-6 Lysate Source: Cell Lysate Application: Western Blotting Control Form: IgG...
Madin-Darby bovine kidney (MDBK) cells Source: Cell Lysate Form: Ready to Use Application: Western Blotting Control...
Biology Products: