Cited by 42Neurotransmitter Receptor Influence on BehaviorNicotinic Acetylcholine Receptors StudySmoking Behavior and Cessation

Nicotine-conditioned locomotor sensitization in rats: assessment of the US-preexposure effect

Bevins, Rick A, Palmatier, Matthew I·2003·Behavioural Brain Research

Abstract

In rats, stimulus-nicotine associations can be altered by preexposure to the nicotine US (unconditioned stimulus). This alteration differs with the conditioning preparation. In a conditioned taste avoidance preparation, preexposure to nicotine weakens conditioning. In contrast, nicotine preexposure enhances acquisition of a nicotine-conditioned place preference. No one has examined the effects of US preexposure on nicotine locomotor conditioning. In three separate experiments, we assessed the effects of nicotine preexposure on the subsequent expression of conditioned hyperactivity produced by a nicotine US. We found evidence for nicotine-conditioned locomotor sensitization in non-preexposed rats that received repeated pairings of a distinct context with the psychomotor effects of a 0.42 mg/kg dose of nicotine (free base). Conditioning was not observed at lower nicotine doses (0.18 and 0.11 mg/kg) in non-preexposed rats. Preexposure to the 0.42 and 0.18 mg/kg doses of nicotine (3 or 9 days) attenuated acute locomotor suppression and enhanced the development of locomotor sensitization to that same dose. Despite similar qualitative shifts in the locomotor profile induced by preexposure to the nicotine US, conditioned hyperactivity was only altered after 3 or 9 days of preexposure at the 0.18 mg/kg dose. Thus, similar to place conditioning, nicotine preexposure can enhance the subsequent effectiveness of the nicotine US in a locomotor conditioning preparation.

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Crossref · 10.1016/s0166-4328(03)00009-3

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Authors
Bevins, R. A., & Palmatier, M. I.
Affiliations
University of Nebraska–Lincoln (US)
Corresponding author
Bevins, Rick A
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2003-07
Volume
143
Issue
1
Pages
65-74
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2169719456
Cited by
42
References
46
Citations by year
2024: 1 · 2022: 1 · 2021: 2 · 2019: 1 · 2016: 1 · 2015: 2 · 2014: 3 · 2013: 1 · 2012: 4
FWCI
1.50
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (DA 11893, R01DA011893)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
Keywords
nicotine, locomotor sensitization, conditioned taste avoidance, locomotor suppression
MeSH terms
Analysis of Variance, Animals, Association Learning, Conditioning, Psychological, Cues, Differential Threshold, Dose-Response Relationship, Drug, Male, Motor Activity, Nicotine, Rats, Sprague-Dawley, Rats

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