Abstract:
:This paper examines findings on the neuroregulatory effects of nicotine in an effort to formulate a unified hypothesis that can explain the remarkable persistence of smoking behavior. Because nicotine alters the bioavailability of several behaviorally active neuroregulators, including acetylcholine, norepinephrine, dopamine, beta-endorphin, and vasopressin, we propose that nicotine is "used" by smokers to produce temporary improvements in performance or affect. Under this formulation, a potential large number of exteroceptive and interoceptive cues unrelated to the nicotine-dependence cycle may serve as discriminative stimuli for smoking, over and above smoking to terminate or avoid withdrawal. The rapid action of nicotine, and its diverse neuroregulatory effects, render it particularly effective as a "coping response" to the demands of daily living. Of special interest in this regard is a biphasic pattern of arousal/catecholaminergic activation followed by cholinergic blockade or beta-endorphin release. Apparently smokers can adjust nicotine intake to enhance these effects selectively, which may add considerably to the appeal of smoking.
journal_name
Neurosci Biobehav Revjournal_title
Neuroscience and biobehavioral reviewsauthors
Pomerleau OF,Pomerleau CSdoi
10.1016/0149-7634(84)90007-1subject
Has Abstractpub_date
1984-01-01 00:00:00pages
503-13issue
4eissn
0149-7634issn
1873-7528journal_volume
8pub_type
杂志文章,评审abstract::Risk assessment is the attempt to characterize the chance of obtaining an adverse effect after exposure to an agent. Traditionally, high levels of an agent have been used to estimate the likelihood a lower dose might have an effect either by using low-dose extrapolation models or by attempting to establish a dose with...
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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journal_title:Neuroscience and biobehavioral reviews
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