期刊
DRUG AND ALCOHOL DEPENDENCE
卷 163, 期 -, 页码 229-235出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.drugalcdep.2016.04.025
关键词
Addiction; Smoking; Emotion; Young adults
资金
- NICHD NIH HHS [T32 HD007151] Funding Source: Medline
- NIDA NIH HHS [R01 DA032581, R21 DA038001, K01 DA034752] Funding Source: Medline
Background: Decreased sensitivity to pleasant stimuli is associated with a higher vulnerability to nicotine dependence in youths and with difficulty quitting in adult smokers. Recently, we showed that smokers showing lower brain reactivity to non-cigarette-related pleasant images than to cigarette-related ones have lower chances of achieving long-term abstinence during a quit attempt. Methods: We tested whether individual differences in brain responses to cigarette-related and pleasant stimuli require a long history of smoking to develop by measuring the late positive potential (LPP) to cigarette cues, emotional, and neutral stimuli in 45 young, light smokers (ages 18-25). k-means cluster analysis was used to partition smokers into two groups based on the magnitude of their LPPs. Results: Group 1 was characterized by larger LPPs to pleasant pictures than cigarette-related pictures whereas Group 2 showed the opposite pattern. Conclusions: Our results suggest that individual differences in brain responses to cigarette-related and pleasant cues do not require a long smoking history to develop. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
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