Abstract:
:The authors tested the hypothesis that the effects of nicotine on affect are moderated by the presence or absence of emotionally positive and negative stimuli and by attentional choice to avoid attending to emotionally negative stimuli. Thirty-two habitual smokers were assigned to tasks allowing attentional freedom to look back and forth at 2 simultaneously presented pictures, whereas another 32 habitual smokers viewed single pictures without attentional choice. Picture contents in both tasks were 1 of 4 combinations: emotionally negative + neutral, negative + positive, positive + neutral, or neutral + neutral. Participants wore a nicotine patch on 1 day and placebo patch on another day. Nicotine reduced anxiety most when negative pictures were presented in combination with neutral pictures, but it had no effect on anxiety when negative pictures were presented in combination with positive pictures and when negative pictures were not presented. In contrast, nicotine only reduced depressive affect when the participant had attentional choice between positive and negative pictures. Nicotine also enhanced positive affect and reduced negative affect as measured by the Positive and Negative Affect Schedule, but these effects were not moderated by task manipulations. Overall, the findings support the view that nicotine's ability to reduce specific negative affects is moderated by emotional context and attentional freedom. Nicotine tended to enhance eye-gaze orientation to emotional pictures versus neutral pictures in women, but it had no significant effect on eye-gaze in men.
journal_name
Exp Clin Psychopharmacoljournal_title
Experimental and clinical psychopharmacologyauthors
Gilbert DG,Riise H,Dillon A,Huber J,Rabinovich NE,Sugai Cdoi
10.1037/1064-1297.16.1.33subject
Has Abstractpub_date
2008-02-01 00:00:00pages
33-42issue
1eissn
1064-1297issn
1936-2293pii
2008-01365-004journal_volume
16pub_type
杂志文章abstract::This study examined the association between the heart rate (HR) response to alcohol intoxication, which is thought to reflect sensitivity to alcohol-induced reward and alcohol-induced behavioral disinhibition. High- and low-HR responders to alcohol participated in a go/no-go task, under sober and intoxicated condition...
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abstract:BACKGROUND:Despite increases in ecstasy (MDMA) use in the United States, little is known about characteristics linked with recent-onset ecstasy use, especially psychiatric symptoms and deviant behaviors. AIMS:To test whether individuals with high levels of other drug use are more likely to be recent-onset ecstasy user...
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