Reinforcing effects of stimulants in humans: sensitivity of progressive-ratio schedules.
Reinforcing effects of stimulants in humans: sensitivity of progressive-ratio schedules.
复制标题
增强人类兴奋剂的作用：渐进比例计划的敏感性。
DOI：
10.1037/a0013657
复制
发表时间：
2008
影响因子：
2.3
通讯作者：
Stoops,WilliamW
中科院分区：
文献类型：
--
作者：
Stoops,WilliamW
Drug self-administration methodologies have been developed for use in humans to model naturalistic stimulant drug-taking behaviors. These methodologies use a number of schedules of reinforcement, including progressive-ratio schedules. As the name implies, in a progressive-ratio schedule, the response requirement for each subsequent delivery of drug increases, and the primary outcome variable is often the break point (ie, the last ratio completed to receive a drug delivery). These schedules have been used in a number of human laboratory studies evaluating the reinforcing effects of stimulants. The results of these studies have demonstrated that progressive-ratio schedules are sensitive to manipulation of a pharmacological variable, dose, and to nonpharmacological variables contributing to stimulant drug effects. In addition, findings with progressive-ratio schedules are largely concordant with clinical findings, suggesting that drug self-administration under these schedules has predictive validity in terms of drug abuse and dependence. Future research is necessary, however, to understand better how pharmacological factors like route of administration, onset of effects, and pretreatment influence the reinforcing effects of stimulants under progressive-ratio schedules.(PsycINFO Database Record (c) 2016 APA, all rights reserved)
