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声学突出:理解唐氏综合征儿童的语言模式
Delin Deng1, Miriam Lense2, Stephen Camarata2
1Department of Psychology and Human Development, Vanderbilt University, Nashville, Tennessee 37235, USA.
The Journal of the Acoustical Society of America
|August 27, 2025
概括
唐氏综合征 (DS) 的儿童与典型发育 (TD) 的儿童相比,在发言中使用不同的声学突出线索. 儿童表现出不同的音调模式,
科学领域:
- 语言学
- 语音病理学
- 发展心理学
背景情况:
- 在语言中声学突出强调单词,区分新的和已知的信息.
- 研究广泛涵盖了典型发育 (TD) 儿童的声学突出.
- 关于唐氏综合征 (DS) 儿童的声学突出标记的研究有限.
研究的目的:
- 为了比较唐氏综合征 (DS) 和典型发育 (TD) 儿童之间的声学突出意识.
- 通过声学参数,研究DS儿童如何标记新与已知信息.
- 分析基本频率 (f0),强度和持续时间的差异.
主要方法:
- 一个
- 玩偶表演
- 这项任务涉及22名TD儿童和9名DS儿童.
- 声学参数分析:平均f0,平均强度,持续时间和时间正常化f0.
- 使用线性混合效应和通用添加混合模型的统计建模.
主要成果:
- 与TD儿童相比,DS儿童的基本频率 (f0) 和强度明显高.
- 两组之间没有明显的发言时间差异.
- 与 TD 儿童明显上升和下降的轮相比,DS 儿童的轮图案表现较差.
结论:
- 与典型发育 (TD) 儿童相比,患有唐氏综合征 (DS) 的儿童使用不同的声学策略进行突出标记.
- 在DS语音中明显的f0轮模式可能会影响新信息与已知信息的清晰信号.
- 需要进一步的研究来了解这些声学差异在DS通信中的全部含义.
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