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综合的句子级语音感知唤起了强化的语言网络,并促进了早期的语言发展
Qinqin Luo1, Leyan Gao2, Zhirui Yang3
1Neurolinguistics Laboratory,College of International Studies, Shenzhen University, Shenzhen, China; Department of Chinese Language and Literature, The Chinese University of Hong Kong, Shatin, Hong Kong.
孩子 孩子 孩子 孩子
科学领域:
- 发育神经科学的发展神经科学.
- 语音感知 语音感知
- 语言获取 语言获取
背景情况:
- 诗意的演讲,以prosodic规律的特点,很容易被儿童记住.
- 诗歌中的和的声学模式可以促进早期发育中的综合句子处理.
- 儿童处理诗歌发言的神经基础和发育益处仍未得到充分研究.
研究的目的:
- 调查儿童用来感知诗意发言的特定神经通路.
- 为了确定处理诗意语音是否有利于儿童的整体语言发育.
- 检查从幼儿到青春期的诗意语音感知发展轨迹.
主要方法:
- 功能近红外光谱学 (fNIRS) 用于记录94名儿童 (2-12岁) 和73名成年人的血液动力学变化.
- 参与者听到了诗意和非诗意的自然句子.
- 儿童和成年人的大脑活动模式进行了比较,并与语音表现指标相关联.
主要成果:
- 诗意句子的感知涉及到一个高度集成的过程,在儿童和成年人中,大脑的工作量较低.
- 与成年人不同,儿童表现出早期激活的大规模诗歌演讲网络,由连接枢纽协调.
- 诗意的语言激活了儿童的语音编码区域,这种激活随着年龄的增长而减弱;这些神经反应与语音流性和语义正相关.
结论:
- 儿童对综合语音感知表现出明显的神经敏感性,特别是在诗意形式.
- 这种敏感性通过增强复杂的语言网络和感知-生产电路来促进早期语音发育.
- 儿童的诗意语音处理支持关键沟通技能的发展,包括流利和语义理解.
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