延迟的听觉反在典型的流利成年人中增加了语音生产的可变性,但在口吃的成年人中产生了相反的效果
Ayoub Daliri1, Shogo Honda1, Ludo Max2
1College of Health Solutions, Arizona State University, Tempe, AZ, United States.
Frontiers in human neuroscience
|September 15, 2025
概括
吃的成年人表现出更大的语音运动变性. 延迟的听觉反 (DAF) 减少了口吃个体的这种变异性,这表明口吃的听觉错误处理发生了变化.
科学领域:
- 神经科学是一个神经科学.
- 语音科学 语言科学
- 语言学的语言学.
背景情况:
- 在吃的人身上,听觉运动集成效率低下.
- 延迟的听觉反 (DAF) 提高了的人的言语流性.
- 这些现象背后的精确机制尚未完全理解.
研究的目的:
- 调查口吃是否与语音传感运动控制的前组件的变化增加有关.
- 为了确定DAF是否降低了口吃成年人的语音运动规划变化.
主要方法:
- 从12名口吃的成年人和12名匹配的对照人群的音频录音中提取了声学测量.
- 参与者在正常的听觉反 (NAF) 和100毫秒的DAF条件下,在辅音-元音-辅音单词中产生元音.
- 试验对试验的形式变异性被计算出来,以评估前控制.
主要成果:
- 与不口吃的成年人相比,口吃的成年人表现出明显更大的试验到试验的形式变化.
- 在非口吃的成年人中,DAF增加了形式变异性.
- 在口吃的成年人中,DAF降低了形式变异性.
结论:
- 在NAF下,口吃的成年人比不口吃的成年人产生更可变的运动指令.
- DAF使口成年人的运动指令变化正常化.
- 语可能涉及到在传感运动处理中听觉错误信号的权重改变.
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