Cohen N L, Waltzman S B, Shapiro W H
Laryngoscope. 1985 Dec;95(12):1448-54.
During 1984, six patients have been implanted with a 22-channel cochlear prosthesis. The device features a programmable wearable speech processor using a speech feature encoding strategy. A strict clinical protocol was followed, and no patients have been lost to follow-up. All patients are regular users of the device and have shown a restoration of hearing sensation in response to acoustic stimuli. Pure tone averages ranged from 20 to 47 dB HL and speech detection thresholds varied from 15 to 32.5 dB HL. All patients have shown a recognition of a large variety of environmental sounds, and an improvement in speech recognition ability when the device is used in conjunction with lipreading. Speech reception thresholds using spondee words without lipreading were obtained in three patients at levels of 27.5 to 55 dB HL and one patient had an open-set speech discrimination score (w-22 word list) of 42% without lipreading. In addition, two of the patients show an ability to have limited interactive conversation without the use of lipreading.
1984年期间，6名患者植入了22通道人工耳蜗。该设备具有一个采用语音特征编码策略的可编程可穿戴式语音处理器。遵循了严格的临床方案，没有患者失访。所有患者都是该设备的常规使用者，并且在受到声音刺激时已显示出听力恢复。纯音平均值在20至47 dB HL之间，语音检测阈值在15至32.5 dB HL之间变化。所有患者都已表现出能识别多种环境声音，并且在将该设备与唇读结合使用时，语音识别能力有所提高。三名患者在不进行唇读的情况下使用双音节词获得的言语接受阈值在27.5至55 dB HL之间，一名患者在不进行唇读的情况下开放集言语辨别得分（w-22单词列表）为42%。此外，两名患者显示出在不使用唇读的情况下进行有限互动对话的能力。
