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Published on: July 11, 2025
Nicotine effects on affective response in depression-prone smokers
Bonnie Spring1, Jessica Werth Cook, Bradley Appelhans
1Hines Hospital, VA Medical Center, Hines, IL, USA. bspring@northwestern.edu
Psychopharmacology
|October 26, 2007
Summary
Nicotine may improve mood in smokers vulnerable to depression. This study found that nicotine enhanced positive mood responses and helped dispel negative feelings when exposed to pleasant stimuli, but worsened reactions to negative stimuli.
Area of Science:
- Psychiatry
- Neuroscience
- Addiction Medicine
Background:
- Comorbidity of smoking and depression is common, often attributed to self-medication with nicotine.
- Limited research exists on nicotine's impact on positive affect in depression.
Purpose of the Study:
- To investigate nicotine's effects on positive and negative affect in smokers with varying depression vulnerability.
- To test if nicotine's mood-altering effects are more pronounced in individuals prone to depression.
Main Methods:
- 165 regular smokers were categorized by major depressive disorder (MDD) history.
- Participants smoked nicotinized (NIC+) or denicotinized (NIC-) cigarettes during mood induction procedures.
- Positive and negative affect were measured before and after smoking.
Main Results:
- Previously depressed smokers showed enhanced positive mood with nicotinized cigarettes during positive mood induction.
- Nicotine increased the ability of positive stimuli to reduce negative mood in depression-vulnerable smokers.
- Nicotine exacerbated negative affect in response to negative mood induction across all groups.
Conclusions:
- Nicotine administration appears to positively influence emotional responses to pleasant stimuli in smokers vulnerable to depression.
- Findings suggest a complex role for nicotine in mood regulation among depressed smokers.
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