Music perception in cochlear implant users and its relationship with psychophysical capabilities
Music perception in cochlear implant users and its relationship with psychophysical capabilities
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DOI：
10.1682/jrrd.2007.08.0118
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发表时间：
2008-01-01
影响因子：
--
通讯作者：
Rubinstein, Jay T.
中科院分区：
文献类型：
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作者：
Drennan, Ward R.;Rubinstein, Jay T.
本文介绍了人工耳蜗植入的音乐感知问题，讨论了为什么人工耳蜗植入者的音乐感知通常很差，回顾了相关数据，并介绍了人工耳蜗植入改善音乐感知的方法。音高辨别能力的范围从听到一个八度音差到两个八度音差。听力受损者听节奏和音调持续时间的能力接近正常。音色感知通常很差，但大约三分之二的听众可以在一个封闭的集合中识别乐器。耳蜗植入者通常对旋律的感知能力较差，但有节奏和歌词的帮助。在没有节奏或歌词的情况下，只有大约三分之一的初学者能够在封闭的集合中识别出比偶然更好的常见旋律。在噪声环境中，音乐感知能力和言语理解能力之间存在相关性。因此，改善音乐感知也可能提供更广泛的临床益处。已经提出了许多方法来改善植入用户的音乐感知，包括调制基频编码、“电流控制”、MP3样处理和神经“调节”。“如果成功的话，这些方法可以通过改善沟通、音乐和环境意识来提高受保护者的生活质量。
This article describes issues concerning music perception with cochlear implants, discusses why music perception is usually poor in cochlear implant users, reviews relevant data, and describes approaches for improving music perception with cochlear implants. Pitch discrimination ability ranges from the ability to hear a one-semitone difference to a two-octave difference. The ability to hear rhythm and tone duration is near normal in implantees. Timbre perception is usually poor, but about two-thirds of listeners can identify instruments in a closed set better than chance. Cochlear implant recipients typically have poor melody perception but are aided with rhythm and lyrics. Without rhythm or lyrics, only about one-third of implantees can identify common melodies in a closed set better than chance. Correlations have been found between music perception ability and speech understanding in noisy environments. Thus, improving music perception might also provide broader clinical benefit. A number of approaches have been proposed to improve music perception with implant users, including encoding fundamental frequency with modulation, "current-steering," MP3-like processing, and nerve "conditioning." If successful, these approaches could improve the quality of life for implantees by improving communication and musical and environmental awareness.