The Teenage Brain - Synaptic Pruning, Myelination

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Mary
Chinese(Simplified)
College Students
Storytelling
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Summary
青少年大脑经历了两个重要变化:突触修剪和髓鞘形成。突触修剪是指大脑消除未使用的神经连接,以提高效率。随着年龄增长,大脑从广泛的连接变得更加专业化。髓鞘形成则是神经元轴突周围形成髓鞘,加快信号传递速度。这些变化导致青少年在情绪、冲动和风险行为方面的表现。青少年的前额叶皮层发展较慢,导致他们更容易受到情绪和同伴影响,做出冒险决定。此外,生物钟的变化使他们在青春期时感到更加疲惫。
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