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In the present study, we sought to determine whether the interoceptive effects of alcohol (1 g/kg, IG) could be assessed using a Pavlovian discrimination method, in which the alcohol drug state sets the occasion for which an environmental stimulus (e.g., light) will be followed by a sucrose reward. This procedure takes advantage of a naturally occurring behavior (i.e., food-seeking) which can be trained...
Extracellular signal-regulated kinase (ERK 1/2 ) has been implicated in modulating drug seeking behavior and is a target of alcohol and other drugs of abuse. Given that the discriminative stimulus (subjective/interoceptive) effects of drugs are determinants of abuse liability and can influence drug seeking behavior, we examined the role of ERK 1/2 in modulating the discriminative stimulus...
Epidemiological data support a strong link between stress, stress-related disorders and risk for alcoholism. However, precisely how stress might impact sensitivity to the intoxicating effects of ethanol or the willingness to voluntary consume ethanol remains unclear. The present study assessed the effects of daily exposure to forced swim stress on subsequent sensitivity to the sedative/hypnotic, hypothermic,...
The neurotransmitter serotonin (5-HT) has long been implicated in the etiology of aberrant consumption of alcohol. Several compounds thought to possess a potential therapeutic value to counteract drinking have high affinities for 5-HT 1A and 5-HT 2A receptors in the brain. For example, amperozide and FG5865 significantly reduce the volitional intake of alcohol, without...
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