Keywords Otoacoustic emissions;spontaneous;Efferent pathways;Retrocochlear diseases;Hearing loss;sensorineural;Medial olivocochlear system;

• 耳声发射;自发性;传出通路;耳蜗后疾病;听觉丧失;感音神经性;内侧橄榄耳蜗系统;