感知定:阅读障碍儿童在语音处理中从语境重复中获得的益处不如对照人群
Claudia Männel1, Jessica Ramos-Sanchez2, Hellmuth Obrig3
1Department of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany; Clinic for Cognitive Neurology, University of Leipzig, Liebigstr. 16, 04103 Leipzig, Germany.
概括
与典型阅读者相比,阅读障碍儿童在语音处理中从声学中获得的益处较小. 这表明,使用上下文线索的困难可能导致阅读障碍症的阅读挑战.
科学领域:
- 听觉神经科学 听觉神经科学
- 发展心理学 发展心理学
- 语音感知 语音感知
背景情况:
- 阅读障碍患者在处理听觉统计特征方面表现出缺陷.
- 感知,如重复的音色,通过提供语境来帮助语音处理.
研究的目的:
- 调查 dyslexia 儿童是否从重复上下文音调中受益较少,作为语音处理的感知.
- 用事件相关潜能,比较患有阅读障碍和没有阅读障碍的儿童的听觉处理.
主要方法:
- 一项与事件相关的潜在 (ERP) 研究,涉及有 (n=21) 和没有 (n=20) 阅读障碍的11岁儿童.
- 参与者听到音节对;第一个音节作为一个恒定音调 () 或可变音调 (无).
主要成果:
- 两组都显示了P2对头和无头第一音节的反应减少,这表明在阅读障碍症中头重复的自动处理较少.
- 与对照组相比,患有阅读障碍的儿童在处理音响后的第二个音节方面表现出较少的便利性.
结论:
- 患有阅读障碍的儿童在语音处理中表现出声学的改变影响.
- 从声学的减少促进可能有助于困难在形成长期的语音表现在阅读障碍症.
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