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Nicotine-induced cortical activation among nonsmokers with moderation by trait cognitive control

Content Provider	Springer Nature Link
Author	Sutton, Steven K. Van Rensburg, Kate Janse Jentink, Kade G. Drobes, David J. Evans, David E.
Copyright Year	2016
Abstract	Considerable research suggests that nicotine enhances cognitive control-related processes (e.g., attention, memory) among nicotine-deprived smokers, both in terms of behavior and neural indices (e.g., ERP, slow-wave EEG). Nicotine may also increase cognitive control among nonsmokers, and this may vary as a function of trait cognitive control. It is important to examine the effects of nicotine on cognitive control-related processes among nonsmokers as these effects may provide a path for the initiation of smoking.The objectives of the study were to examine in nonsmokers (1) the effect of nicotine on resting cortical activity, an indirect measure of cognitive control, and (2) trait cognitive control as a moderator of nicotine-induced cortical activity changes.Eighty participants were given placebo and 7-mg nicotine patches in separate sessions for this counter-balanced, double-blind, within-subject study. Resting cortical activity was measured with EEG for a 3-min period with eyes opened.Average alpha-1 band power density values in frontal and central regions were lower during the nicotine versus placebo condition, which provides evidence of nicotine-induced cortical activation. Furthermore, those with lower self-reported cognitive control exhibited greater nicotine-induced reductions in alpha-1 power density values.These individual differences in nicotine-induced cortical activation are consistent with a model of nicotine self-medication whereby individuals with lower cognitive control may find smoking more reinforcing via amelioration of related cognitive deficits.
Starting Page	2301
Ending Page	2308
Page Count	8
File Format	PDF
ISSN	00333158
Journal	Psychopharmacology
Volume Number	233
Issue Number	12
e-ISSN	14322072
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nicotine Smoking EEG Personality Cognitive control Neurosciences Pharmacology/Toxicology Psychiatry
Content Type	Text
Resource Type	Article
Subject	Pharmacology

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