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风险选择和老鼠博任务的结果相关的心率变化
Fumiya Fukushima1, Atsushi Tamura1, Nahoko Kuga1
1Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-Ku, Sendai 980-8578, Japan.
The journal of physiological sciences : JPS
|April 13, 2025
概括
在博任务期间,老鼠表现出明显的心率变化. 心率在冒险选择前下降,在获得更大的回报后增加,这揭示了对冒险采取的动态生理反应.
科学领域:
- 神经科学是一个神经科学.
- 行为经济学是一种行为经济学.
- 生理学 生理学 生理学
背景情况:
- 冒险行为对于实现更大的结果和调节兴奋是必不可少的.
- 心率动态反映了生物体对不确定性下决策的生理反应.
研究的目的:
- 为了研究老鼠在博任务中心率的变化,包括在确定和冒险选项之间做出选择.
- 了解与风险评估和结果识别相关的动态生理调整.
主要方法:
- 鼠被训练为50:50和25:75的博任务,具有不同的概率和奖励大小.
- 在选择安全与风险选项以及在结果识别时,持续监测心率.
主要成果:
- 在老鼠选择风险选择之前,与确定选择相比,观察到心率显著下降.
- 当老鼠识别出风险选择和确定选择后的更大结果时,心率的增加更大.
- 在不同的博条件中观察到类似的动态心率模式,表明了适应性生理反应.
结论:
- 动物根据选择的风险选择和结果的大小,动态地改变他们的心率.
- 心率变化作为风险评估和奖励处理在决策中的生理指标.
- 这些发现提供了对承担风险行为的神经生理机制的洞察.
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