Casswell S, Marks D F
Science. 1973 Feb 23;179(4075):803-5. doi: 10.1126/science.179.4075.803.
The effects of 3.3 and 6.6 milligrams of Delta(9)-tetrahydrocannabinol and of placebo on performance of three cognitive tasks were compared for naive subjects and experienced cannabis smokers. No differences in performance or reported subjective effects were found between these two groups. A significant decrement was found following dosage at both levels, replicating earlier findings of temporal disintegration during cannabis intoxication.
对初次接触大麻者和有吸食大麻经验者，比较了3.3毫克和6.6毫克的Δ⁹-四氢大麻酚以及安慰剂对三项认知任务表现的影响。在这两组之间未发现表现或报告的主观效应有差异。在两个剂量水平给药后均发现有显著下降，重复了早期关于大麻中毒期间时间解体的研究结果。
