检查围绕着下颌、嘴、眼以及耳廓的反射是识别痴呆的一种好方法.在有智能损害的病人中,用强击上唇外侧引起同侧向上和向后的耳廓运动,这就是为口唇耳廓反射.(见图示)这个反射是两侧的,可以单独出现,也可以伴有摸索吸吮反射,强握反射和其他反射.它在有精神缺损的阿尔采木氏病的病人 Examining the reflexes around the lower jaw, mouth, eyes, and pinna is a good way to identify dementia. In patients with intellectual impairment, the lateral movement of the upper lip causes the ipsilateral up and down auricle movements, Lip Reflexes (see illustration) This reflex is flanked by either solitary reflexes, sucking reflexes, pectoral reflexes and other reflexes. It occurs in patients with Alzheimer’s disease who have mental impairment