439 我教会了老鼠开车，而它们教会了我享受旅程

What can happy rats teach us about human joy? Behavioral neuroscientist Kelly Lambert describes how her team trained rats to drive tiny cars to earn treats — and noticed something surprising about how effort and anticipation affect the brain. The experiment opens new questions about how reward, agency and "behaviorceuticals" might help build resilience and support mental health.快乐的老鼠能教会我们哪些关于人类幸福感的道理？行为神经科学家凯利・兰伯特（Kelly Lambert）介绍，她的团队训练老鼠驾驶微型小车来换取零食，实验过程中，他们有了一项出人意料的发现：付出的努力与期待感会对大脑产生独特影响。这项实验引出了一系列全新问题：奖赏、自主掌控感以及 “行为疗法”，究竟该如何帮助人们塑造心理韧性、维护心理健康。