Negri M, Bacciu A, Fava G, Pasanisi E, Piazza F, Bacciu S
Istituto di Scienze Otorinolaringologiche, Università degli Studi di Parma.
Acta Biomed Ateneo Parmense. 1996;67(5-6):177-83.
Electrocochleography (ECoG) is an electrophysiologic approach to the study of hearing. In ECoG, electrical activity that originates within the cochlea or the auditory nerve is recorded. ECoG represents an evoked or stimulus dependent measure. The electrical potentials which can be analyzed in ECoG are: the cochlear microphonic potential (CM), the summating potential (SP) and the acoustic nerve potential (AP). Two major types of electrocochleography electrodes can be used, transtympanic and extratympanic. Transtympanic ECoG is performed by inserting a long needle electrode, placed through the tympanic membrane onto the promontory. Extratympanic ECoG is recorded by using electrodes placed within the external meatus near the tympanic membrane. At the ENT Department of the University of Parma, ECoG was performed in 10 normal hearing subjects (4 males and 6 females. Their ages ranged from 21 to 29 years (mean 26 years). All subjects underwent ECoG recording simultaneously with extratympanic and transtympanic technique.
耳蜗电图（ECoG）是一种用于研究听力的电生理方法。在耳蜗电图检查中，记录起源于耳蜗或听神经的电活动。耳蜗电图代表一种诱发的或依赖刺激的测量方法。可在耳蜗电图中分析的电位有：耳蜗微音电位（CM）、总和电位（SP）及听神经电位（AP）。可使用两种主要类型的耳蜗电图电极，即经鼓膜电极和鼓膜外电极。经鼓膜耳蜗电图检查是通过将一根长针电极经鼓膜插入到岬部来进行的。鼓膜外耳蜗电图检查是使用置于鼓膜附近外耳道内的电极来记录的。在帕尔马大学耳鼻喉科，对10名听力正常的受试者（4名男性和6名女性）进行了耳蜗电图检查。他们的年龄在21岁至29岁之间（平均26岁）。所有受试者同时采用鼓膜外和经鼓膜技术进行耳蜗电图记录。
