中风病人可同时出现喜悦和悲伤的表情,表现为病理性哭和笑(PLC)。笑是幸福快乐的标志,而哭代表着痛苦和悲伤,它们分别是情感变化的两个极端。在正常情况下、面部表情和哭笑的情绪反应受脑的控制,并进一步受皮质、脑干功能和个性特征的调节。然而,在脑的病理情况下,控制这两种重要人类情绪的能力可能丧失。 Stroke patients may have the expression of joy and sadness, manifested as pathological crying and laughing (PLC). Laughing is a symbol of happiness and happiness, while crying represents pain and sadness. They are the two extremes of emotional change. Under normal circumstances, facial expressions and dumb emotions are controlled by the brain and are further regulated by cortical, brainstem functions and personality traits. However, in the pathological conditions of the brain, the ability to control these two important human emotions may be lost.