facebook
twitter
rss
account
search
search
 

Brain scanned to study smoking cues

April 21, 2006 at 11:30 AM   |   Comments

MONTREAL, April 21 (UPI) -- Canadian researchers found that when people expect to smoke in the near future, external cues such as watching someone smoke affects their brain.

Researchers at the Montreal Neurological Institute and McGill University scanned the brain of 20 healthy smokers who were randomly divided into one of two groups: "expectant" -- they could smoke right after the test or "non-expectant" -- they could only smoke four hours after the test.

The researchers scanned the brains of each subject to pinpoint the areas that were active while the subjects were exposed to visual smoking cues through videotaped footage of people lighting cigarettes, smoking while socializing or blowing smoke rings.

In the group who expected to smoke immediately after the test, areas of the brain implicated in arousal, attention and cognitive control were activated. In the subjects who could only smoke four hours after the test, there was almost no neural response to smoking cues, even if the subject reported an equivalent craving level, according to Dr. Alain Dagher, a neurologist who specializes in functional brain imaging.

The findings were published in the journal Neuropsychopharmacology.

© 2006 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Most Popular
1
Protein found in breast milk may protect infants from a certain disease
2
Morning exercise helps calm ADHD symptoms in children Morning exercise helps calm ADHD symptoms in children
3
CDC: Get your flu vaccine CDC: Get your flu vaccine
4
Yoga guru BKS Iyengar dies at 95 Yoga guru BKS Iyengar dies at 95
5
New industry-baked marijuana PSAs advise moderation New industry-baked marijuana PSAs advise moderation
Trending News
Video
x
Feedback