疼痛是基本的感觉之一。疼痛发生机理和治疗方法的研究,是临床一个重大难点,而研究中枢性疼痛可给我们提供线索。人们在疼痛时意味着两个现象。一是对正常神经系统给以危害机体的刺激,对此所感觉的感痛是普通意义的疼痛。二是感觉系统有病变,末梢的感觉刺激不能正常传导,产生难以忍受的疼痛。这种疼痛是由于末梢来的感觉传 Pain is one of the basic feelings. The mechanism of pain and treatment research, is a major clinical clinical difficulties, and the study of central pain can give us clues. People in pain mean two things. First, the normal nervous system to endanger the body’s stimulation, the feeling of pain is a common sense of pain. Second, the feeling of the system lesions, peripheral sensory stimulation can not be properly transmitted, resulting in unbearable pain. This pain is due to sensory transmission from the tip