快乐的情绪可以感染他人,悦耳的声音也会引起开心的笑声。研究人员通过观察磁共振成像发现,悦耳的声音能够加倍激活大脑的运动前区使面部肌肉做出反应,因此它比刺耳的声音更有感染力。诚如文中所言,“欢笑,整个世界会随你一起欢笑”。此外,好心情能引起共鸣也是人类促进交际、增强联系纽带的原因之一。 Happy emotions can infect others, and sweet sounds can also cause happy laughter. The researchers observed through magnetic resonance imaging that the pleasing sound doubled the activation of the premotor area of ​​the brain and caused the facial muscles to respond, so it was more infectious than the harsh sound. As stated in the text, “Laughing, the whole world will laugh with you.” In addition, good mood can cause resonance, which is one of the reasons why humanity promotes communication and strengthens ties.