Brain Sciences Institute, Swinburne University, Melbourne, Victoria, Australia.
Neuropsychobiology. 2011;63(1):15-21. doi: 10.1159/000321833. Epub 2010 Oct 20.
Our group has conducted several Internet investigations into the biobehavioural effects of self-reported recreational use of MDMA (3,4-methylenedioxymethamphetamine or Ecstasy) and other psychosocial drugs. Here we report a new study examining the relationship between self-reported Ecstasy use and traces of MDMA found in hair samples.
In a laboratory setting, 49 undergraduate volunteers performed an Internet-based assessment which included mood scales and the University of East London Drug Use Questionnaire, which asks for history and current drug use. They also provided a hair sample for determination of exposure to MDMA over the previous month.
Self-report of Ecstasy use and presence in hair samples were consistent (p < 0.00001). Both subjective and objective measures predicted lower self-reported ratings of happiness and higher self-reported stress. Self-reported Ecstasy use, but not presence in hair, was also associated with decreased tension.
Different psychoactive drugs can influence long-term mood and cognition in complex and dynamically interactive ways. Here we have shown a good correspondence between self-report and objective assessment of exposure to MDMA. These data suggest that the Internet has potentially high utility as a useful medium to complement traditional laboratory studies into the sequelae of recreational drug use.
我们的团队已经进行了几次互联网调查,研究自我报告的娱乐性使用 MDMA(3,4-亚甲基二氧甲基苯丙胺或摇头丸)和其他精神药物的生物行为效应。在这里,我们报告了一项新的研究,该研究检查了自我报告的摇头丸使用与头发样本中发现的 MDMA 痕迹之间的关系。
在实验室环境中,49 名本科志愿者进行了基于互联网的评估,其中包括情绪量表和东伦敦大学药物使用问卷,该问卷询问了过去和当前的药物使用情况。他们还提供了头发样本,以确定过去一个月内接触 MDMA 的情况。
自我报告的摇头丸使用情况和头发样本中的存在情况一致(p < 0.00001)。主观和客观测量都预测了自我报告的幸福感降低和压力增加。自我报告的摇头丸使用情况,而不是头发中的存在情况,也与紧张感降低有关。
不同的精神活性药物会以复杂和动态交互的方式影响长期的情绪和认知。在这里,我们已经证明了自我报告和 MDMA 暴露的客观评估之间具有良好的一致性。这些数据表明,互联网具有作为补充娱乐性药物使用后果的传统实验室研究的有用工具的潜在高效用。