Eaton-Peabody Laboratory, Massachusetts Eye and Ear, 243 Charles Street, Boston, Massachusetts 02114, USA.
J Acoust Soc Am. 2019 Apr;145(4):1975. doi: 10.1121/1.5094897.
An air-conduction circuit model was developed for the chinchilla middle ear and cochlea. The lumped-element model is based on the classic Zwislocki model of the same structures in human. Model parameters were fit to various measurements of chinchilla middle-ear transfer functions and impedances, using a combination of error-minimization-driven computer-automated and manual fitting methods. The measurements used to fit the model comprise a newer, more-extensive data set than previously used, and include measurements of stapes velocity and inner-ear sound pressure within the vestibule and the scala tympani near the round window. The model is in agreement with studies of the effects of middle-ear cavity holes in experiments that require access to the middle-ear air space. The structure of the model allows easy addition of other sources of auditory stimulation, e.g., the multiple sources of bone-conducted sound-the long-term goal for the model's development-and mechanical stimulation of the ossicles and round window.
建立了一个关于南美栗鼠中耳和耳蜗的空气传导电路模型。该集中参数模型基于 Zwislocki 经典模型中人类中耳和耳蜗的结构。使用计算机自动和手动组合的误差最小化拟合方法，模型参数与各种南美栗鼠中耳传递函数和阻抗的测量值相匹配。用于拟合模型的测量值包括一个比以前使用的更广泛的新数据集，包括测量镫骨速度和前庭内以及圆窗附近耳蜗鼓阶内的内耳声压。该模型与中耳腔孔对需要进入中耳空气腔的实验的影响的研究结果一致。该模型的结构允许轻松添加其他听觉刺激源，例如，骨导声音的多个源-这是模型开发的长期目标-以及对听小骨和圆窗的机械刺激。
