N400 Event-Related Potential and Standardized Measures of Reading in Late Elementary School Children: Correlated or Independent?
N400 Event-Related Potential and Standardized Measures of Reading in Late Elementary School Children: Correlated or Independent?
复制标题
DOI：
10.1111/mbe.12083
复制
发表时间：
2015-09
期刊：
影响因子：
--
通讯作者：
Benoit C
中科院分区：
文献类型：
--
作者：
Coch D;Benoit C
[T]o完整地分析我们在阅读时所做的事情......将是描述人类大脑中许多最复杂的工作，以及解开文明在其所有历史中所学到的最显着的具体表现的纠结故事。我们调查了标准化的阅读行为测量和阅读电生理测量是否以及如何在72个典型的发展中，晚小学生。行为测量包括拼写、语音处理、词汇、理解、命名速度和记忆的标准化测试。电生理测量由事件相关电位波形的N400分量的振幅组成，所述事件相关电位波形由真实的单词、假单词、不可发音的字母串和字母样符号串（假字体）引起。唯一显著的大脑行为相关性是词汇测试的标准分数与N400平均振幅之间的相关性，这些N400平均振幅与真实的单词（r =-0.272）和假单词（r =-0.235）有关。我们的结论是，虽然这些特定的标准化行为和电生理措施都提供了一个阅读的指数，在大多数情况下，他们是独立的，并利用不同的底层处理资源。
[T]o completely analyze what we do when we read… would be to describe very many of the most intricate workings of the human mind, as well as to unravel the tangled story of the most remarkable specific performance that civilization has learned in all its history We investigated whether and how standardized behavioral measures of reading and electrophysiological measures of reading were related in 72 typically developing, late elementary school children. Behavioral measures included standardized tests of spelling, phonological processing, vocabulary, comprehension, naming speed, and memory. Electrophysiological measures were composed of the amplitude of the N400 component of the event-related potential waveform elicited by real words, pseudowords, nonpronounceable letter strings, and strings of letter-like symbols (false fonts). The only significant brain-behavior correlations were between standard scores on the vocabulary test and N400 mean amplitude to real words (r = −.272) and pseudowords (r = −.235). We conclude that, while these specific sets of standardized behavioral and electrophysiological measures both provide an index of reading, for the most part, they are independent and draw upon different underlying processing resources.