Elsmore T F, Fletcher G V, Conrad D G, Sodetz F J
Pharmacol Biochem Behav. 1980 Nov;13(5):729-31. doi: 10.1016/0091-3057(80)90018-0.
Baboons earned their total food ration in a situation where they were periodically given an opportunity to choose between food and an intravenous infusion of heroin. As the number of daily choices was restricted, food intake remained relatively constant, while heroin intake decreased dramatically.
在一种实验情境中,狒狒需要获取它们的全部食物配给,在该情境下,它们会定期获得在食物和静脉注射海洛因之间进行选择的机会。由于每日选择的次数受到限制,食物摄入量保持相对稳定,而海洛因摄入量则大幅下降。