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首页> 外文期刊>The European Journal of Neuroscience >Language performance and auditory evoked fields in 2- to 5-year-old children.
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Language performance and auditory evoked fields in 2- to 5-year-old children.

机译：2至5岁儿童的语言表现和听觉诱发领域。

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摘要

Language development progresses at a dramatic rate in preschool children. As rapid temporal processing of speech signals is important in daily colloquial environments, we performed magnetoencephalography (MEG) to investigate the linkage between speech-evoked responses during rapid-rate stimulus presentation (interstimulus interval < 1 s) and language performance in 2- to 5-year-old children (n = 59). Our results indicated that syllables with this short stimulus interval evoked detectable P50m, but not N100m, in most participants, indicating a marked influence of longer neuronal refractory period for stimulation. The results of equivalent dipole estimation showed that the intensity of the P50m component in the left hemisphere was positively correlated with language performance (conceptual inference ability). The observed positive correlations were suggested to reflect the maturation of synaptic organisation or axonal maturation and myelination underlying the acquisition of linguistic abilities. The present study is among the first to use MEG to study brain maturation pertaining to language abilities in preschool children.
机译：学龄前儿童的语言发展以惊人的速度发展。由于语音信号的快速临时处理在日常口语环境中很重要，因此我们进行了脑磁图（MEG）来研究快速刺激演示（刺激间隔<1 s）期间语音诱发的反应与2到5的语言表现之间的联系岁的儿童（n = 59）。我们的结果表明，在大多数参与者中，具有这种短刺激间隔的音节引起了可检测到的P50m而非N100m，这表明更长的神经元不应期对刺激产生了显着影响。等效偶极子估计的结果表明，左半球中P50m分量的强度与语言表现（概念推断能力）呈正相关。所观察到的正相关被认为反映了语言能力获得的突触组织的成熟或轴突的成熟和髓鞘形成。本研究是最早使用MEG来研究与学龄前儿童语言能力有关的大脑成熟的研究之一。

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