儿童具有天真、顽皮、活泼、好动的特征。但如果儿童经常做出一些无意义的、古怪而又奇特的动作和行为,而且对这种动作与行为自己又不能意识到,则应想到是病态。儿童期,以异常动作和行为为发病特点的常见精神疾患有以下数种:(1)突然发生的不自主的肌肉抽动。如:不自主地眨眼、斜视、皱额、揪鼻、呶嘴、张口、摇头、点头、仰 Children are naive, naughty, lively, active features. However, if children often make some insignificant, weird and peculiar actions and behaviors, and they themselves can not realize such actions and behaviors, they should think of it as being ill. In childhood, the common mental disorders characterized by abnormal movements and behaviors include the following: (1) Sudden, involuntary muscle twitching. Such as: involuntary blink, strabismus, wrinkles, pulling his nose, pouting, mouth, shaking his head, nodding, Yang