Facial expressions are controlled by several brain regions working together. Different areas encode facial gestures with different scales, from fast changing signals to slow, stable ones. This timing hierarchy may explain how facial expressions stay socially meaningful and well coordinated.

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When does lighthearted banter become inappropriate and humiliating?

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美军调动驻韩装备支援中东行动,详情可参考谷歌

100-летний композитор Зацепин дал совет по борьбе с усталостьюКомпозитор Зацепин посоветовал соблюдать режим, чтобы не жаловаться на усталость

Фото: Gavriil Grigorov / Reuters,更多细节参见超级权重

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赵敏,专栏作家,多年从业经验,致力于为读者提供专业、客观的行业解读。