Cue Induced Imaging in Nicotine Dependent Smokers

Status Completed

Clinical Trial Summary

The purpose of this study is to evaluate the relationship between craving to smoke and areas activated in brain. The researchers are using functional magnetic resonance imaging (MRI) that measures brain blood flow, or perfusion, to study this brain activation.

Clinical Trial Description

Functional magnetic resonance imaging has demonstrated that the same types of environmental cues that induce craving activate an integrated network of brain areas involved in the appetitive and motivational process of addiction to drugs of abuse including nicotine ( Brieter 119; Koob 2001, Volkow 2003).In nicotine deprived smokers both mesolimbic dopamine reward pathways (amygdala, ventral tegmental area, and medial thalamus) and areas related to visuospatial attention (bilateral prefrontal cortex and parietal cortex and right fusiform gyrus) are activated by exposure to smoking images (Due 2002, David 2005).

In line with the National Institute on Drug Abuse's (NIDA) emphasis on novel methods for investigating substance use disorders, the current study proposes to use fMRI to better understand the neurological correlates of cue reactivity among nicotine dependent smokers. This approach will permit the isolation of pathways that are relevant to cue induced craving. ;

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Related Conditions & MeSH terms

Nicotine Dependence

Clinical Trial Details

NCT number	NCT00844701
Study type	Observational
Source	Medical University of South Carolina
Contact
Status	Completed
Phase	N/A
Start date	February 2008
Completion date	December 2009

View Details

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