Withdrawal from chronic nicotine and subsequent sensitivity to nicotine challenge on contextual learning

Derek S. Wilkinson, Thomas J. Gould

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Nicotine withdrawal is associated with numerous symptoms including impaired hippocampus-dependent learning. Theories of nicotine withdrawal suggest that nicotinic acetylcholine receptors (nAChRs) are hypersensitive during withdrawal, which suggests enhanced sensitivity to nicotine challenge. Research indicates that prior exposure to nicotine enhances sensitivity to nicotine challenge, but it is unclear if this is due to prior nicotine exposure or specific to nicotine withdrawal. Therefore, the present experiments examined if prior nicotine exposure or nicotine withdrawal altered the effects of nicotine challenge on hippocampus-dependent learning. C57BL/6J mice were trained and tested in contextual conditioning following saline or nicotine challenge either during (24. h after cessation) or after (14 days after cessation) a period of nicotine withdrawal symptoms. Nicotine challenge produced a greater enhancement of contextual conditioning relative to control withdrawal state in mice withdrawn from chronic nicotine for 24. h compared to 14 days and corresponding saline controls. These experiments support the suggestion that during periods of abstinence, smokers may perceive tobacco providing a large boost in cognition.

Original languageEnglish (US)
Pages (from-to)58-61
Number of pages4
JournalBehavioural Brain Research
Volume250
DOIs
StatePublished - Aug 1 2013

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Nicotine
Learning
Hippocampus
Substance Withdrawal Syndrome
Nicotinic Receptors
Inbred C57BL Mouse
Cognition
Tobacco

All Science Journal Classification (ASJC) codes

  • Behavioral Neuroscience

Cite this

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Withdrawal from chronic nicotine and subsequent sensitivity to nicotine challenge on contextual learning. / Wilkinson, Derek S.; Gould, Thomas J.

In: Behavioural Brain Research, Vol. 250, 01.08.2013, p. 58-61.

Research output: Contribution to journalArticle

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