概率逆向学习对青少年饮酒轨迹的相关性
Juliane H Fröhner1, Maria Waltmann2,3, Andrea M F Reiter2,4
1Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany.
Addiction biology
|March 6, 2025
概括
青少年在不断变化的环境中的适应性,通过概率逆向学习 (PReL) 测量,随着年龄的增长而改善. 有风险的酒精使用与受损的PReL有关,可能是通过改变与奖励预测错误相关的大脑活动.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 认知科学 认知科学
背景情况:
- 青春期涉及发展适应不断变化的环境的能力.
- 概率逆转学习 (PReL) 测量了这种适应性.
- 以前的研究将重度饮酒与受损的PReL联系起来.
研究的目的:
- 研究使用PReL的青少年的适应性.
- 检查逆向学习发展的神经认知过程.
- 测试假设PReL与酒精使用有负面关联,酒精会损害PReL.
主要方法:
- 在143名青少年 (14,16,18岁) 的长度研究中.
- 使用了概率逆向学习 (PReL) 任务.
- 应用计算建模和功能磁共振成像 (fMRI).
主要成果:
- 青少年的PReL表现随着年龄的增长而有所改善,表现出减少的切换行为.
- 计算模型表明,在年龄较大的青少年中,学习率更高,奖励/损失灵敏度改变.
- 在奖励预测错误期间,较高的酒精消费与中部额头活动减少相关.
结论:
- 逆向学习适应性在青春期得到改善.
- 冒险饮酒,而不是低水平的饮酒,与PReL的神经认知改变有关.
- 研究结果表明,PReL与维持或升级危险饮酒行为的相关性.
更多相关视频
相关概念视频
Revisionist Views of Adolescent and Adult Cognition
22
A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
22
Instinctive Drift
173
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
173
Timing and Consequences on Behavior
71
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
71
Regression Toward the Mean
6.3K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.3K
Self-Presentation: Self-Monitoring and Self-Handicapping
38.7K
People can go to great lengths to protect their self-image and present themselves in ways that they want others to see them. Sociologist Erving Goffman presented the idea that a person is like an actor on a stage. Calling his theory dramaturgy, Goffman believed that we use “impression management” to present ourselves to others as we hope to be perceived. Each situation is a new scene, and individuals perform different roles depending on who is present (Goffman, 1959). Think about...
38.7K
Hindsight Biases
3.4K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
3.4K


