儿童大脑语音处理和快速命名发育的功能磁共振成像研究

Brain-X Pub Date : 2023-07-10 DOI:10.1002/brx2.20
Zeyu Song, Zhenqi Jiang, Yingwei Fan, Liang Lu, Zhao Zhang, Yifei Wang, Yu Chen, Lifei Liu, Xiaoying Tang, Hanjun Li
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引用次数: 0

摘要

儿童的大脑结构和语言技能被认为处于快速发展阶段,尤其是随着年龄的增长而积极发展的关键语音语义表达。在本研究中,回顾性分析了85名健康儿童的静息状态功能磁共振成像数据。使用低频波动的分数幅度(fALFF)、程度中心性(DC)、区域同质性(ReHo)和连锁中介效应分析来评估感兴趣的特定大脑区域的语音处理和加速命名与年龄的相关性。我们的研究结果表明,儿童后扣带回(PCC)和右额下回(IFG)的发育阶段介导了儿童的语言发育。此外,在发育过程中注意到双侧IFG三角形部分的功能相似性,左侧IFG三角部分的激活更强,局部和全脑连接更高。此外,PCC在同一时期表现出更强的激活和更高的本地连接性。我们的数据表明,PCC和右IFG的发育以及双侧IFG功能的相似性是儿童语音处理和快速命名的重要成像标志,并且PCC和IFG随着年龄的增长表现出更全面的发展。
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Functional magnetic resonance imaging study of children's brain development in phonological processing and speeded naming

The brain structure and language skills of children are understood to be in a phase of rapid development and are especially represented by key phonological-semantic expressions that actively develop with age. In the present study, resting-state functional magnetic resonance imaging data from 85 healthy children were retrospectively analyzed. Correlations of the phonological processing and speeded naming of specific brain regions of interest with age were assessed using the fractional amplitude of low-frequency fluctuations (fALFF), degree centrality (DC), regional homogeneity (ReHo), and chain mediation effect analysis. Our results suggest that the developmental stages of children's posterior cingulate gyrus (PCC) and right inferior frontal gyrus (IFG) mediate language development in children. Additionally, the functional similarity of the bilateral IFG triangular part was noted during development as was the stronger activation and higher local and whole-brain connectivity of the left IFG triangular part. Moreover, the PCC displayed stronger activation and higher local connectivity in the same period. Our data suggest that the development of the PCC and right IFG and the similarity of bilateral IFG function are important imaging markers of phonological processing and speeded naming in children and that the PCC and IFG show a more comprehensive development with age.

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