Clark G M, Tong Y C, Martin L F, Busby P A
Acta Otolaryngol. 1981 Mar-Apr;91(3-4):173-5. doi: 10.3109/00016488109138496.
Multiple-channel electrical stimulation of the hearing nerve in conjunction with speechreading has helped two post-lingually deaf patients with total hearing losses understand running speech in every day situations. This has been confirmed using open-set phonetically balanced word tests, where the patients achieved 60% and 40% scores with isolated-words, and 80% and 73% for phonemes-in-isolated words. The tests also showed that the cochlear implant improved word recognition by a factor of four in one patient and two in another, compared with speechreading alone. The speech processor used, extracted the voicing frequency and energy, and the frequency and energy of the dominant spectral peak in the mid-frequency range. The parameters for voicing determined the rate of stimulation for all electrodes, and the parameters for the dominant spectral peak in the mid-frequency range determined the site of electrode stimulation and current level.
听神经的多通道电刺激结合唇读，已帮助两名语后聋且完全失聪的患者在日常情境中理解连贯的言语。这一点已通过开放式语音平衡单词测试得到证实，在该测试中，患者在孤立单词测试中分别取得了60%和40%的分数，在孤立单词中的音素测试中分别取得了80%和73%的分数。测试还表明，与单独唇读相比，人工耳蜗使一名患者的单词识别能力提高了四倍，另一名患者提高了两倍。所使用的言语处理器提取了发声频率和能量，以及中频范围内主导频谱峰值的频率和能量。发声参数决定了所有电极的刺激速率，中频范围内主导频谱峰值的参数决定了电极刺激的部位和电流水平。
