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早期的连接性和专业化预测了7至9岁儿童的语音和语义专业化的纵向变化

Avantika Mathur¹, Jin Wang², James R Booth¹

¹Department of Psychology and Human Development, Vanderbilt University, Nashville, TN, United States.

Imaging neuroscience (Cambridge, Mass.)

|October 20, 2025

概括

早期的大脑连接预测了儿童以后的语言专业化,支持交互式专业化模型. 这种发育过程影响了声音 (声学) 和意义 (语义) 处理途径.

科学领域:

神经科学是一个神经科学.
发展心理学发展心理学
认知科学认知科学

背景情况:

交互专业化模型 (ISM) 假定大脑区域之间的早期功能连接驱动了以后的专业化.
了解语言发展的神经基础,特别是语音和语义处理,至关重要.

研究的目的:

在语言发展的背景下调查交互专业化模型的假设.
检查早期的功能连接如何预测儿童在语音和语义处理方面的以后专业化.

主要方法:

对32名年龄在7岁和9岁的儿童进行了长度研究.
功能磁共振成像 (fMRI) 在声音和意义判断任务期间.
对声学和语义的功能连接和神经专业化的分析.

主要成果:

在7岁时早期的功能连接预测了9岁时的后期专业化,无论是声学 (背部通道) 还是语义 (腹腔通道).
7岁时专业化的个体差异也预测了以后的专业化,对语义学的影响更大.
特定的途径 (声学的背部,语义的腹部) 被确定为预测性.

结论:

这些发现支持了语言发展中的交互专业化模型的核心假设.
对声学和语义的神经专业化在儿童时期继续发展.
特定大脑区域 (下额,上/中) 的早期连接是未来语言专业化的关键预测因素.

关键词:

功能连接性的功能连接性功能磁共振成像 (fMRI) 是一种功能性磁共振成像.交互式专业化模型的交互式专业化模型纵向研究是一种纵向研究.声学专业化声学专业化声学专业化语义专业化语义专业化

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