School of Psychology, University of Birmingham, Edgbaston, Birmingham, UK.
J Psychopharmacol. 2011 Apr;25(4):530-7. doi: 10.1177/0269881110389346. Epub 2010 Dec 17.
There is evidence from self-report measures which suggests that young women dieters find cigarette smoking less rewarding than non-dieters. We aimed to further elucidate differences between dieters and non-dieters in their evaluation of smoking using a behavioural measure of drug reward. Thirty female undergraduates attended two sessions (cigarette deprived and non-deprived). A computer-based progressive ratio operant procedure was employed to assess the amount of effort that participants were willing to expend to gain a puff on a cigarette. The point at which responding ceased was taken as a measure of drug reward (breakpoint). Self-report measures of sensory/hedonic aspects of smoking were also completed. The breakpoints of both dieters and non-dieters were greater under deprived than non-deprived conditions but the breakpoints of dieters were significantly lower than those of the non-dieting smokers under both conditions. Self-reported enjoyment of smoking was lower for dieters than non-dieters and reports for non-dieters but not dieters were affected by deprivation level. Both behavioural and self-report measures of rewarding aspects of smoking suggest that young women dieters find smoking less rewarding than non-dieters, but self-report measures are more resistant to deprivation effects for dieters. This is consistent with the suggestion that subjective and behavioural measures assess different dimensions of the rewarding effects of smoking.
有证据表明，从自我报告的测量来看，年轻女性节食者比非节食者认为吸烟的回报更少。我们旨在通过行为药物奖励测量进一步阐明节食者和非节食者在吸烟评估方面的差异。30 名女大学生参加了两次会议（吸烟剥夺和非剥夺）。采用基于计算机的递增比率操作程序来评估参与者愿意花费多少努力来吸一口烟。将响应停止的点作为药物奖励的衡量标准（断点）。还完成了对吸烟感官/愉悦方面的自我报告测量。在剥夺和非剥夺条件下，节食者和非节食者的断点都大于非剥夺条件，但在两种条件下，节食者的断点都明显低于非节食吸烟者。与非节食者相比，节食者对吸烟的享受程度较低，而非节食者的报告但不受剥夺水平的影响。吸烟奖励方面的行为和自我报告测量都表明，年轻女性节食者比非节食者认为吸烟的回报更少，但自我报告测量对节食者的剥夺效应更具抵抗力。这与主观和行为测量评估吸烟奖励效果的不同维度的观点一致。
