Electro-Tactile Stimulation Enhances Cochlear Implant Speech Recognition in Noise.
Electro-Tactile Stimulation Enhances Cochlear Implant Speech Recognition in Noise.
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DOI：
10.1038/s41598-017-02429-1
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发表时间：
2017-05-19
影响因子：
4.6
通讯作者：
Zeng FG
中科院分区：
文献类型：
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作者：
Huang J;Sheffield B;Lin P;Zeng FG
对于人工耳蜗用户来说，组合电声刺激 (EAS) 显着提高了性能。然而，还有更多用户在低频下没有任何功能性残余听觉。由于触觉也以与 EAS 中的听觉听觉相同的低频（<500 Hz）运行，因此我们建议采用电触觉刺激 (ETS) 来改善人工耳蜗的性能。在 10 名人工耳蜗使用者中，将触觉辅助器应用到食指上，将语音基频转换为触觉振动。对单独人工耳蜗植入和双模式 ETS 条件下的噪声中语音识别进行了比较。平均而言，与单独的人工耳蜗相比，ETS 将语音接收阈值提高了 2.2dB。 10 名受试者中有 9 名表现出积极的 ETS 效果，范围为 0.3 至 7.0dB，这与之前报告的 EAS 收益相似。类似的结果表明，ETS 和 EAS 效应背后的神经机制相似。积极的结果表明，互补的听觉和触觉模式也可用于增强正常听力听众的性能和机器的自动语音识别能力。
For cochlear implant users, combined electro-acoustic stimulation (EAS) significantly improves the performance. However, there are many more users who do not have any functional residual acoustic hearing at low frequencies. Because tactile sensation also operates in the same low frequencies (<500 Hz) as the acoustic hearing in EAS, we propose electro-tactile stimulation (ETS) to improve cochlear implant performance. In ten cochlear implant users, a tactile aid was applied to the index finger that converted voice fundamental frequency into tactile vibrations. Speech recognition in noise was compared for cochlear implants alone and for the bimodal ETS condition. On average, ETS improved speech reception thresholds by 2.2 dB over cochlear implants alone. Nine of the ten subjects showed a positive ETS effect ranging from 0.3 to 7.0 dB, which was similar to the amount of the previously-reported EAS benefit. The comparable results indicate similar neural mechanisms that underlie both the ETS and EAS effects. The positive results suggest that the complementary auditory and tactile modes also be used to enhance performance for normal hearing listeners and automatic speech recognition for machines.