Herskovic J E, Rose J E, Jarvik M E
Pharmacol Biochem Behav. 1986 Feb;24(2):171-5. doi: 10.1016/0091-3057(86)90333-3.
We conducted two experiments to explore the role of nicotine in the maintenance of cigarette smoking behavior. In Experiment 1 we determined that, compared to 0 or 2 mg injections, an injection of 4 mg nicotine base into the filter of non-nicotine cigarettes significantly increased their desirability. In Experiment 2, to determine how nicotine-seeking varied across a wide range of cigarette deprivation, we studied nicotine preference under three cigarette deprivation conditions: overnight abstinence, 30 min deprivation, and immediately after smoking (satiation condition). Nicotine preference was assessed by allowing subjects to freely adjust the nicotine concentration of each puff using a smoke mixing device. Nicotine preference was greatest after overnight deprivation. Least after satiation, and intermediate after 30 min deprivation. However, nicotine seeking increased as a function of cigarette deprivation despite the fact that higher nicotine puffs were rated as harsher, stronger and less desirable than lower nicotine puffs. The results of both experiments suggest an inverted-U relationship between nicotine content and desirability.
我们进行了两项实验,以探究尼古丁在维持吸烟行为中的作用。在实验1中,我们确定,与注射0毫克或2毫克相比,向无尼古丁香烟的滤嘴中注射4毫克尼古丁碱会显著增加其吸引力。在实验2中,为了确定在广泛的香烟剥夺条件下对尼古丁的寻求如何变化,我们研究了三种香烟剥夺条件下的尼古丁偏好:过夜禁吸、剥夺30分钟以及吸烟后立即进行(饱腹状态)。通过让受试者使用烟雾混合装置自由调节每一口烟雾中的尼古丁浓度来评估尼古丁偏好。过夜剥夺后尼古丁偏好最大。饱腹状态后最小,剥夺30分钟后处于中间水平。然而,尽管较高尼古丁含量的烟雾被评定为比低尼古丁含量的烟雾更刺鼻、更浓烈且更不受欢迎,但对尼古丁的寻求仍随着香烟剥夺程度的增加而增加。两项实验的结果均表明尼古丁含量与吸引力之间呈倒U形关系。