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在成年患有阅读障碍的成年人中,语音表达是完整的,但更难以获得的
Bart Boets1, Hans P Op de Beeck, Maaike Vandermosten
1Child and Adolescent Psychiatry, KU Leuven, 3000 Leuven, Belgium.
患有阅读障碍的成年人在听觉皮层中具有完整的语音表示. 然而,他们的阅读和拼写困难源于听觉和前脑区域之间的连接受损,阻碍了对这些语音声音表示的访问.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语言学的语言学.
背景情况:
- 阅读障碍是一种持续的阅读和拼写障碍,与语音缺陷有关.
- 根本原因 - - 语音表示质量差与访问受损 - - 仍在争论中.
研究的目的:
- 为了研究语音障碍症中语音缺陷的神经基础.
- 区分语音表示完整性和访问效率.
主要方法:
- 使用功能磁共振成像 (fMRI) 与多像素模式分析.
- 采用功能和结构连接性分析.
主要成果:
- 语音表示位于双边的听觉皮层,在阅读障碍的成年人中具有完整的神经质量.
- 在阅读障碍患者中,在听觉和左下额头旋转之间观察到显著阻碍的功能和结构连接.
结论:
- 阅读障碍症的特点是缺乏对完整的语音表示的访问,而不是被退化的表示本身.
- 与左下额头状回路的连接受损是阅读障碍症的语音处理困难的基础.
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