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Implications of insular cortex laterality for treatment of nicotine addiction.


ABSTRACT: BACKGROUND:Damage to the insula disrupts nicotine-induced cravings and is associated with greater odds of cessation. The role of laterality in regulating these changes is unclear. Neuroimaging studies in cigarette smokers show left hemispheric activation during a period of forced withdrawal and right hemispheric activation after having just smoked. Among current smokers hospitalized for stroke involving their insula, we compared left versus right insular damage and its effect on smoking outcomes. METHODS:A total of 37 smokers hospitalized with unilateral insular strokes (14 right, 23 left) were administered questionnaires to assess urge (Questionnaire on Smoking Urges) before (retrospectively) and during hospitalization and 3 months post-stroke, withdrawal during hospitalization (Wisconsin Smoking Withdrawal Scale), and prolonged abstinence at 3 months post-stroke. Crude and adjusted linear regression models were performed controlling for baseline covariates. RESULTS:Right and left insular-damaged smokers experienced a significant decrease in urge from baseline to hospitalization and three-month follow-up (p?

SUBMITTER: Abdolahi A 

PROVIDER: S-EPMC6629032 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Implications of insular cortex laterality for treatment of nicotine addiction.

Abdolahi Amir A   Williams Geoffrey C GC   van Wijngaarden Edwin E  

Drug and alcohol dependence 20190607


<h4>Background</h4>Damage to the insula disrupts nicotine-induced cravings and is associated with greater odds of cessation. The role of laterality in regulating these changes is unclear. Neuroimaging studies in cigarette smokers show left hemispheric activation during a period of forced withdrawal and right hemispheric activation after having just smoked. Among current smokers hospitalized for stroke involving their insula, we compared left versus right insular damage and its effect on smoking  ...[more]

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