Related Experiment Video
Updated: Apr 11, 2026
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Local Application of Drugs to Study Nicotinic Acetylcholine Receptor Function in Mouse Brain Slices
Published on: October 29, 2012
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Nicotine self-administration increases impulsive action: differential effects of nAChR modulators in a Go/No-Go task
Ranjithkumar Chellian1,2, Guido Huisman1, Adriaan W Bruijnzeel1
1Department of Psychiatry, University of Florida, Gainesville, FL, USA.
Biorxiv : the Preprint Server for Biology
|April 10, 2026
Summary
Chronic nicotine self-administration increases impulsive action in rats. Nicotinic acetylcholine receptor (nAChR) antagonists, but not agonists, reduced this impulsivity, suggesting a therapeutic target for tobacco use disorder.
Area of Science:
- Neuroscience
- Behavioral Pharmacology
Background:
- Tobacco use disorder is a chronic relapsing condition.
- Impulsivity is a key factor in persistent nicotine use and cessation failure.
Purpose of the Study:
- To investigate the effects of nicotinic acetylcholine receptor (nAChR) modulators on impulsive action in rats during nicotine self-administration.
- To determine if nAChR antagonism or agonism influences nicotine-induced impulsivity.
Main Methods:
- Rats underwent intravenous nicotine self-administration and were trained on a Go/No-Go task.
- The effects of varenicline, nicotine, and mecamylamine on responding were assessed.
Main Results:
- Nicotine and varenicline reduced overall responding but did not alter impulsive action.
- Mecamylamine selectively reduced responding during No-Go trials, indicating decreased impulsive action.
- Chronic nicotine self-administration increased impulsive action compared to saline controls.
Conclusions:
- Chronic nicotine intake enhances impulsive action.
- nAChR antagonism effectively reduces nicotine-related impulsive action.
- The Go/No-Go self-administration task is valuable for studying nAChR mechanisms in nicotine impulsivity.
Keywords:
Go/No-Go taskimpulsivityinhibitory controlmecamylaminenAChRsnicotine self-administrationtobacco use disordervareniclineMore Related Videos
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