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脑梗死失语症患者事件相关电位N_(400)的临床应用价值 被引量:5

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摘要 目的探讨脑梗死失语症患者事件相关电位N400的临床应用价值。方法对9例首发单病灶急性脑梗死失语患者(失语组)和11例正常人(对照组)进行汉语句子结尾词语义匹配与不匹配N400的检测。做出观察组Wernicke失语与Broca失语的N400总平均图,比较两种失语N400的潜伏期、波幅及波形变化。结果失语组患者的句子结尾词语义不匹配N400潜伏期较对照组延长(P<0.05),波幅降低(P<0.001)。Wernicke失语患者语言理解障碍程度高,其N400的潜伏期较Broca失语患者延长,波幅降低。结论 N400可作为评价失语症语言理解障碍的较客观指标,也可以作为区别Broca失语与Wernicke失语的参考指标。
出处 《广东医学》 CAS CSCD 北大核心 2013年第13期2049-2051,共3页 Guangdong Medical Journal
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参考文献8

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二级参考文献19

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