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不匹配消极性可以用作预测正常听力个体中中央听力缺陷的指标吗?
Lichun Zhang1, David Mißler1, Karsten Ehrt1
1Department of Otorhinolaryngology, Head and Neck Surgery, 'Otto Körner', Rostock University Medical Center, Doberaner Straße 137-139, D-18507 Rostock, Germany.
Audiology research
|April 25, 2025
概括
不匹配负面性 (MMN) 显示了在患有隐性听力损失的成年人中早期检测中央听力缺陷的潜力,特别是在语音刺激下. 然而,它对隐性听力损失的诊断实用性仍然有限.
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.
- 语音语言病理学 语音语言病理学
背景情况:
- 隐性听力损失的特点是,尽管听力测量正常,但在噪音中语音感知能力降低,这会影响早期的听力障碍.
- 目前对外周听力病理的诊断指标,如ABR波I振幅和MEMR,是不一致的.
- 不匹配负面性 (MMN),一种皮质听觉唤起的潜能,反映了大脑对听觉变化的检测.
研究的目的:
- 评估MMN作为诊断工具的有效性,用于识别成人隐性听力损失.
- 调查MMN响应与听觉处理中与年龄相关的变化之间的关系.
主要方法:
- 73名正常听觉的成年人接受了扩展的高频听力测量 (0.12516 kHz).
- 使用语音 (ba/da) 和语音 (1/2 kHz) 两种范式来评估不匹配负面性 (MMN).
- 测量和分析了MMN振幅和延迟,考虑到年龄和扩展的高频值 (EHT).
主要成果:
- 随着语音刺激 (p = 0.002) 观察到MMN幅度与年龄相关的显著下降.
- 25~30岁组的MMN幅度明显小于20~25岁组的MMN幅度 (p = 0.0015).
- 无论是EHT还是音调范式都没有显著地影响MMN或P300的振幅/延迟.
结论:
- 作为一种独立的电生理学工具,MMN在正常听力成年人中诊断隐性听力损失具有局限性.
- 对语音刺激的MMN反应可能作为早期中央听力缺陷的指标,与对音调刺激的反应不同.
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