人通过感觉器官获得的各种信息,在神经中枢的各级水平得到调整,经过储存、校正和选择,再输入效应器官,由这些效应器官产生一定的反应。一般说来,这是人体生理反射正向的信息过程。然而效应器官或组织的反应本身也能构成具有一定能量的信息,再回输到中枢神经系统的高级部门,对感觉和未来的反应产生影响,这就是反馈。反馈也称为回授。生物回授(Biofeedback)就是利用这种信息反馈过程达到医疗目的的行为医学新技术。它借助于专门的仪器对人体某些效应器官或组织的生理变化指标进行探测和放大,通过记录、显示系统将有关信息转变为易于理解的信号或读数,病人在医务人员指 All information obtained by human sensory organism is adjusted at all levels of the nerve center. After storage, correction and selection, the organ of effect is re-entered and the response is generated by these organ. In general, this is the positive process of human physiology reflex. However, the response of the effector organ or tissue itself can also constitute information with a certain amount of energy, which is then fed back to the senior department of the central nervous system and has an impact on the feeling and the future response. This is feedback. Feedback is also called feedback. Biofeedback is a new behavioral medicine that uses this information feedback process for medical purposes. It uses special instruments to detect and amplify physiological indicators of certain organs or tissues of the human body. By recording, the system displays information about the signals or readings that are easy to understand.