从6岁开始,听觉稳定状态响应的响应强度和延迟
Irem Adalilar1, Robin Gransier1, Jan Wouters1
1Department of Neurosciences, Research Group ExpORL, KU Leuven, Leuven, Belgium.
International journal of audiology
|January 8, 2025
概括
听觉稳定状态响应 (ASSR) 随着年龄的增长而成熟,与成人相比,儿童的40Hz ASSR强度增加和延迟时间更长. 对于80Hz的ASSR,没有发现年龄差异.
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.
- 发展心理学 发展心理学
背景情况:
- 审计稳定状态响应 (ASSR) 是审计系统功能的客观测量.
- 由于听觉路径的成熟,ASSR的发展变化可能会发生.
研究的目的:
- 研究不同调制频率 (40 Hz 和 80 Hz) 的ASSR特征 (强度,延迟,横向性) 的年龄相关差异.
- 了解ASSR在儿童和成人的发育轨迹.
主要方法:
- 多通道脑电图 (EEG) 用于记录ASSRs.
- 通过使用40 Hz或80 Hz调制的宽带噪声来引起ASSR.
- 刺激呈现给左耳,右耳或两耳在70dB SPL.
主要成果:
- 年龄的增长与40Hz ASSR强度的增加和延长的延迟相关,特别是在成人和幼儿之间.
- 对于80Hz的ASSRs,没有观察到与年龄相关的显著差异.
- 半球横向性显示出右半球倾向于年长儿童的40Hz ASSR和年轻儿童的80Hz ASSR.
结论:
- 40 Hz ASSR 显示出发育变化,其特点是响应强度增加和延长的延迟.
- 这些发现为正常听力儿童提供了规范性数据,这对于未来对儿科患者听力障碍的研究至关重要.
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