Marijuana use, craving, and academic motivation and performance among college students: An in-the-moment study
Marijuana use, craving, and academic motivation and performance among college students: An in-the-moment study
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DOI：
10.1016/j.addbeh.2015.03.020
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发表时间：
2015-08-01
影响因子：
4.4
通讯作者：
Tormohlen, Kayla N.
中科院分区：
文献类型：
--
作者：
Phillips, Kristina T.;Phillips, Michael M.;Tormohlen, Kayla N.
简介：大麻是美国最常用的非法药物，在科罗拉多州的年轻人中使用率很高。长期大量使用大麻会影响认知功能，这有可能影响大学生的学习成绩。对大麻的渴望可能会进一步导致认知和情感功能的下降，从而导致学生的不良结果。方法：以重度大麻使用者为研究对象，通过短信方式完成生态瞬间评价（EMA）。在大学环境中，大麻的使用和渴望之间的关系进行了探索，以及这些变量如何与学习动机、努力和成功联系起来。参与者在两周内每天随机发送三次短信。结果：发现了渴望和大麻使用之间的时间关联，其中瞬间渴望积极预测更多的大麻使用。同样，随着渴望程度的增加，下一个评估点花在学习上的时间也会减少。研究发现，在同一时刻，对大麻的短暂渴望与学业动机之间存在负相关关系，较高的学业自我效能正预测累积绩点，而平均吸食大麻的时间负相关。结论：使用EMA、大麻渴望和使用显著相关。这些发现提供了进一步的证据，证明大量使用大麻与学业成绩呈负相关。(C) 2015 Elsevier Ltd.版权所有。
Introduction: Marijuana is the most commonly used illicit substance in the U.S., with high rates among young adults in the state of Colorado. Chronic, heavy marijuana use can impact cognitive functioning, which has the potential to influence academic performance of college students. It is possible that craving for marijuana may further contribute to diminished cognitive and affective functioning, thus leading to poor outcomes for students.Methods: College student marijuana users (n = 57) were recruited based on heavy use and completed ecological momentary assessment (EMA) via text-messaging. The association between marijuana use and craving in a college setting was explored, as well as how these variables might relate to academic motivation, effort and success. The participants were sent text messages for two weeks, three times per day at random times.Results: A temporal association between craving and marijuana use was found, where momentary craving positively predicted greater marijuana use. Similarly, as craving levels increased, the number of minutes spent studying decreased at the next assessment point. A negative association between momentary craving for marijuana and academic motivation was found in the same moment Greater academic self-efficacy positively predicted cumulative GPA, while average minutes spent smoking marijuana was negatively related.Conclusions: Using EMA, marijuana craving and use were significantly related. These findings provide further evidence that heavy marijuana use is negatively associated with academic outcomes. (C) 2015 Elsevier Ltd. All rights reserved.