狭义的耳鸣定义为无外界刺激声源而耳内主观上有声音感觉的一类症状[1]。不同患者的耳鸣表现各不相同,有的患者甚至因耳鸣而产生抑郁情绪。因此,很难以某一种理论来解释耳鸣的发生及发展[2]。Jastreboff等人曾提出了听觉的神经生理学模型:外周听觉系统(通常是耳蜗及蜗神经)通过 Narrow tinnitus is defined as the absence of external stimuli and a subjective sense of hearing within the ear a class of symptoms [1]. Different patients have different tinnitus performance, and some patients even have tinnitus depression. Therefore, it is difficult to explain the occurrence and development of tinnitus with a certain theory [2]. Jastreboff et al. Have proposed a neurophysiological auditory model: the peripheral auditory system (usually the cochlear and cochlear nerves) passes