Hollister L E, Overall J E, Gerber M L
Arch Gen Psychiatry. 1975 Jun;32(6):798-801. doi: 10.1001/archpsyc.1975.01760240126010.
Marihuana or placebo cigarettes were smoked by 12 subjects in two environments, one "favorable" and one "neutral". The object was to determine the contribution of setting to the effects reported from the drug. Two quantifiable self-report measurements, the linear euphoriant scale and the card-sort version of the Addiction Research Center Inventory (marihuana and hallucinogen scales), were the major reporting criteria. Analyses of variance consistently demonstrated strong effects for subjects and drug but not for the environmental conditions. Reports of marihuana effects may be assumed to be highly colored by psychological differences in the mental set of subjects, or biological variations in their responses to the drug. The actual environment in which the drug is taken seems to play little, if any, role.
12名受试者在两种环境中吸食大麻或安慰剂香烟，一种环境是“适宜的”，另一种是“中性的”。目的是确定环境对药物所报告效果的影响。两项可量化的自我报告测量指标，即线性欣快量表和成瘾研究中心量表的卡片分类版（大麻和致幻剂量表），是主要的报告标准。方差分析始终表明，受试者和药物有显著影响，但环境条件没有。大麻效果的报告可能被认为在很大程度上受到受试者心理定势的差异或他们对药物反应的生物学差异的影响。服用药物的实际环境似乎几乎没有起到任何作用。
