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Abstract
Background
Cochlear implant (CI) users have difficulty appreciating music and perceiving lexical tones in Mandarin Chinese. Wearing a hearing aid (HA) in the contralateral ear for bimodal hearing may provide additional benefits.
Objectives
To measure the bimodal benefits of music perception and tone recognition and to investigate the relationship between the two in Mandarin-speaking bimodal CI subjects.
Materials and methods
Sixteen Mandarin-speaking bimodal CI subjects (aged between 16 and 49 years) participated in the study. Music perception (pitch discrimination, melody discrimination and instrument identification) and lexical tone recognition were tested with electric stimulation (CI alone) or bimodal stimulation (CI + HA).
Results
Subjects showed a significant bimodal benefit in tone recognition in quiet and noise, and in all music perception tests. The bimodal benefit for tone recognition in noise was significantly correlated with that of pitch discrimination thresholds and instrument identification scores.
Conclusion
Mandarin-speaking bimodal CI users achieved better music perception and tone recognition ability with CI + HA than with CI alone. The bimodal benefit of tone recognition was significantly correlated with that of music perception.
Chinese abstract
背景：人工耳蜗（CI）使用者难以欣赏音乐和感知普通话的词汇音调。对侧耳朵佩戴助听器（HA）以取得双峰听力, 可能会提供额外的好处。
目的：衡量音乐感知和音调识别的双峰效益, 并研究两者在普通话双峰CI受试者之中的关系。
材料和方法：16位讲普通话的双峰CI受试者（年龄在16至49岁）参加了这项研究。通过电刺激（只使用CI）或双峰刺激（CIþHA）来测试音乐感知（音高辨别、旋律辨别和仪器识别）和词汇音调识别。
结果：受试者在安静和噪音以及所有音乐感知测试中, 显示明显的音调识别的双峰效益。噪音中音调判别的双峰获益和高音区别阈值的双峰获益和乐器识别得分明显相关。
结论：普通话双峰CI使用者使用CI þ HA可获得比单独使用CI更好的音乐感知和音调识别能力。音调识别的双峰获益显然与音乐感知的双峰获益相关。
Disclosure statement
No potential conflict of interest was reported by the author(s).