Abstract
Initial sensitivity to substances may affect patterns of future use and dependence. Because smoking and alcohol use are strongly linked, because animal studies indicate cross-sensitivity, and because genetic determinants of nicotine and alcohol dependence overlap, we studied the relationships between retrospectively reported responses to both substances in current smokers ( n=111) and never-smokers ( n=86). Early smoking experiences were correlated with comparable responses to alcohol in smokers, and to a lesser extent, in never-smokers. Both pleasurable early experiences with nicotine and pleasurable experiences with alcohol predicted current alcohol intake; pleasurable early experiences with alcohol also predicted alcohol dependence. Neither pleasurable nor displeasurable experiences with either substance predicted current amount smoked or degree of nicotine dependence. These preliminary findings may have implications for understanding the mechanisms underlying the smoking–alcohol link.
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