倾向于做出风险选择,尽管青少年大鼠的暗示反应性较低
Sandford Zeng1, Elin F B McLaughlin1, Aishwarya Ramesh1
1Department of Neuroscience, University of Pittsburgh, Pittsburgh, PA, United States.
Frontiers in behavioral neuroscience
|December 6, 2023
概括
青少年老鼠在博任务中表现出比成年人更大的冒险行为. 与成年人不同,他们的风险承担不是由奖励线索驱动的,但早期接触博环境可能会导致持久的变化.
科学领域:
- 神经科学是一个神经科学.
- 行为科学 行为科学
- 发展心理学 发展心理学
背景情况:
- 青春期的特点是增加了冒险.
- 博环境中与奖励相关的线索可以加剧风险决策.
- 标志追踪,一个测量暗示反应性的措施,预测成年大鼠的风险选择.
研究的目的:
- 为了研究青少年大鼠在动物博任务 (rGT) 中的表现,用win配对的线索.
- 检查青少年大鼠中信号跟踪和风险承担之间的关系.
- 为了确定早期博任务的暴露是否会影响长期的冒险行为.
主要方法:
- 在动物博任务 (rGT) 中测试了青少年和成年雄性大鼠.
- 标志跟踪行为与暗示反应性相比被测量.
- 评估了青少年rGT培训对成年人冒险的长期影响.
主要成果:
- 与成年人相比,青少年大鼠在rGT上做出了更有风险的选择和更少的最佳选择.
- 青少年表现出比成年人少的标志追踪,这种行为与他们的冒险行为无关.
- 在青春期接受rGT培训的成年人保持了与青春期类似的风险选择倾向.
结论:
- rGT是研究青少年博行为的有效模型.
- 青少年的冒险行为可能不受奖励线索的影响,而不是成年人的冒险行为.
- 早期接触博环境可能会导致风险行为持续变化.
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