语音和手势的故意同步:神经多样性和发展的影响
1Department of Psychological Sciences, University of Connecticut; 406 Babbidge Road; Storrs, CT 06269; USA.
Language and cognition
|September 2, 2025
概括
患有自闭症谱系障碍 (ASD) 的儿童表现出言语和故意手动之间的完整同步,这表明运动协调不是自发言语中言语手势异步的原因.
科学领域:
- 神经科学
- 发展心理学
- 语言学
背景情况:
- 语言和手势通常是同步的.
- 自闭症患者在自发对话中经常表现出语音手势同步失调.
- 这种异步的根本原因 (运动与语言过程) 尚不清楚.
研究的目的:
- 调查自闭症谱系障碍 (ASD) 中的言语运动异步是否源于运动协调或语言产生.
- 研究自闭症青少年的故意发声和手动之间的时间协调.
主要方法:
- 参与者 (患有自闭症的青少年和神经类型的对照者,以及神经类型的成年人) 在执行类似节奏的手动时大声朗读节奏.
- 自动视频分析测量了手部运动的动力峰值.
- 声封分析确定了语音峰值以评估同步性.
主要成果:
- 在自闭症和神经典型的年轻人之间发现了明显的语音运动协调差异.
- 青少年的表现不同于成年人的表现,成年人表现出更高的节奏和节奏性.
- 这表明协调能力已经在青春期成熟.
结论:
- 在这个有意的任务中保持完整的同步支持这样的假设:话语规划需求,而不是运动缺陷,导致自发言语的异步.
- 需要进一步的研究来探索话语规划的作用.
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