音色和元音感知延迟:晚期耳植入物在患有语言前耳聋的儿童的长期影响
Maojin Liang1, Peng Peng2,3,4, Jiahao Liu1
1Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Institute of Hearing and Speech-Language Sciences, Sun Yat-sen University, Guangzhou, China.
Frontiers in human neuroscience
|March 26, 2025
概括
儿童早期的耳植入改善了普通话语的音色感知. 晚期植入显示较长的P2延迟和减少的MMN,表明对语音感知的潜在影响. 晚期歧视性消极性 (LDN) 组件可能会使植入时间效应产生差异.
科学领域:
- 神经科学是一个神经科学.
- 听力学 听力学是指听力学.
- 语音和语言病理学 语言病理学
背景情况:
- 耳植入器 (CI) 定时对听觉感知的影响,特别是对普通话等音色语言,需要进一步研究.
- 了解语音感知和事件相关潜力 (ERP) 响应在前语言CI儿童对于优化听力康复至关重要.
研究的目的:
- 探索早期 (eCI) 和晚期 (lCI) 耳植入的语言前儿童的语音感知和ERP反应.
- 为了将eCI和lCI儿童的听觉处理与正常听力 (NH) 同龄人进行比较,这些儿童有5年的康复期.
主要方法:
- 脑电图 (EEG) 数据是在19名eCI,19名lCI和21名NH儿童的被动多功能听觉奇怪范式中收集的.
- 进行行为评估以与EEG发现相关,特别是检查P2延迟,不匹配负面性 (MMN) 和晚期歧视性负面性 (LDN) 幅度.
- 参与者包括带有右耳耳植入器的前语言儿童,以及听力正常的儿童的对照组.
主要成果:
- 与NH组相比,lCI组表现出明显更长的P2延迟和振幅,而eCI组没有差异.
- 两组CI都显示了较小的MMN幅度比NH组的音调和辅音刺激.
- 对于音调和元音刺激,lCI组显示出比eCI组更大的LDN振幅,在CI组中,LDN随着植入年龄的增加而增加.
结论:
- 早期的耳植入年龄与更好的普通话音色感知有关.
- 植入年龄没有显著影响辅音感知.
- LDN组件可以作为一个指标,以区分eCI和lCI儿童在普通话的音色和母音感知,而P2可以区分NH和CI儿童在语音感知.
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