期刊名称：Experimental Analysis of Human Behavior Bulletin (EAHB Bulletin)
电子版ISSN：1938-7237
出版年度：2006
卷号：24
出版社：Experimental Analysis of Human Behavior Special Interest Group
摘要：A cochlear implant is a prosthesis that substitutes for Corti抯 organ and stimulates electrically the ganglion cells and nerve fibers of the auditory nerve, enabling auditory stimulation. External components of the device comprise a microphone (usually placed behind the ear) that receives external sounds and transmits them, via cable, to a speech processor (roughly the size of a cellular phone). The processor analyzes the sound and digitizes it into coded signals that are sent, through a transmitting coil, as radio-frequency signals (FM) to the cochlear implant receiver/stimulator under the skin. Surgically implanted electrodes placed along the cochlea are connected to the receiver/stimulator through a cable of platinum-iridium wires. The receiver/stimulator delivers the appropriate amount of electrical energy to the electrodes, stimulating the remaining auditory nerve fibers in the cochlea. This electrical sound information is sent from the auditory nerve fibers through the auditory system to the brain, resulting in auditory sensation (Clark, 1997, 2003; Waltzman & Cohen, 2000).
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