对于新生儿语音歧视而言,胎儿上突不对称的预测值
Sophie Mandl1, Patric Kienast2, Gregor Kasprian2
1Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, Vienna 1090, Austria.
Brain communications
|March 2, 2026
概括
在上突 (STS) 中的胎儿大脑不对称性预测了新生儿如何处理语言. 胎儿中较少向右的STS不对称性与出生后右半球参与语音处理的减少有关.
科学领域:
- 神经科学是一个神经科学.
- 发育生物学 发展生物学
- 认知科学 认知科学
背景情况:
- 人类胎儿在上突 (STS) 中表现出独特的向右不对称,与其他灵长类动物不同.
- 胎儿STS不对称性的个体间变异与儿童语言网络横向化相关.
- 胎儿STS不对称性与出生后早期语言处理之间的联系尚不清楚.
研究的目的:
- 调查胎儿STS不对称性对新生儿语言侧面化和神经语音歧视的预测价值.
- 探索胎儿大脑结构与早期语言处理之间的关系.
- 了解语言横向化的产前起源.
主要方法:
- 胎儿磁共振成像 (MRI) 用于测量35个神经类型胎儿的STS深度和体积.
- 功能近红外光谱学 (fNIRS) 评估了新生儿对向前和向后言语的血液动力学反应.
- 纵向研究设计追踪从胎儿到新生儿的个体.
主要成果:
- 胎儿的STS显示出整体向右不对称,具有显著的个体变化.
- 新生儿在言语歧视时激活左前和右部区域.
- 较少向右的胎儿STS不对称性与右半球减少向前演讲的激活以及右半球向前/向后演讲之间的差异化相相关.
结论:
- 胎儿STS不对称性预测新生儿神经语音歧视模式.
- 较早的左叶发育,以较少的右侧STS不对称性表明,与减少右半球参与语音处理有关.
- 这些发现提供了关于从产前期到产后早期语言发育的神经基础的初步见解.
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