多层次的模式预测了青少年大麻使用的开始
Yixin Wang1, Robbie Fraser2, Laika Aguinaldo3
1Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.
Developmental cognitive neuroscience
|November 11, 2025
概括
年轻人早期使用大麻会增加药物滥用和心理健康问题的风险. 应对压力和家庭酒精使用等关键因素预测了每周使用的开始和升级,提供了预防目标.
科学领域:
- 神经科学和发育心理学.
- 青少年物质使用研究.
- 公共卫生和预防医学.
背景情况:
- 年轻人早期开始使用大麻与不良结果有关,包括物质使用障碍,心理健康状况和认知缺陷.
- 了解青少年大麻使用的多方面的影响,对于制定有效的预防策略至关重要.
- 之前的研究强调了个人,社会和环境因素,但需要采用全面的,数据驱动的方法.
研究的目的:
- 确定青少年早期大麻使用开始和升级到每周使用的关键预测因素.
- 分析各种各样的个人,微系统和外部系统层面的影响因素.
- 探索旨在减少青少年大麻使用的预防计划的潜在目标.
主要方法:
- 使用随机生存森林进行了一项基于数据的分析,对来自全国青少年酒精和神经发育联盟 (NCANDA) 队列的450名未曾使用大麻的年轻人 (12-21岁) 进行了数据驱动分析.
- 分析了7个领域 (生物行为,认知,脑磁共振,家庭,同行,社区,法律) 的151项测量结果.
- 为首次使用大麻的年龄和每周使用大麻的年龄开发了预测模型.
主要成果:
- 随机生存森林模型准确地预测了第一次使用大麻的年龄 (C指数=0.68) 和每周使用大麻的开始 (C指数=0.69),显著超过了机会.
- 第一次使用大麻的发病是由13个因素预测的,包括应对压力时较低的积极思维.
- 以较少的因素 (四个) 预测到每周使用的升级,共享的预测因素包括大麻出售密度,家庭酒精获取和积极的酒精预期.
结论:
- 青少年开始使用大麻受到广泛因素的影响,包括心理和环境因素.
- 到习惯性 (每周) 大麻使用的升级似乎是由一组较小的关键因素驱动的,这表明了具体的干预目标.
- 诸如家庭酒精供应和邻里大麻出口密度等因素是重要的预测因素,突出了环境影响在预防工作中的重要性.
相关概念视频
Substance Use Disorders Affecting Sleep
391
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
391
Drug Dependence
1.6K
Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
1.6K
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
755
CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its...
755
Drug Abuse and Addiction: Pharmacological Phenomena
1.1K
Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not...
1.1K
An Overview of Psychoactive Drugs
536
Psychoactive drugs impact brain function, influencing perception, mood, consciousness, cognition, and behavior. These substances are grouped based on their effects and the mechanisms by which they act.
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
536
Cognitive Development During Adolescence
478
During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the...
478


