Bitz Ulrich, Gust Kilian, Spitzer Manfred, Kiefer Markus
Transfercenter for Neuroscience and Learning (ZNL), University of Ulm, Ulm, Germany.
Neuroreport. 2007 Jun 11;18(9):911-5. doi: 10.1097/WNR.0b013e32810f2e25.
Deficits in processing of auditory stimuli are known to play an important role in the aetiology of dyslexia. To specify the auditory deficit in children at risk for dyslexia, 19 children with a phonological deficit and 15 controls were tested using the mismatch negativity event-related potential, which reflects preattentive auditory processing. Children with a phonological deficit, not yet suffering from dyslexia, had similar mismatch negativity patterns to dyslexics. The deficit was speech specific, because there were significant group differences only with syllables but not with pure tones.
已知听觉刺激处理缺陷在诵读困难的病因学中起重要作用。为明确有诵读困难风险儿童的听觉缺陷，使用反映前注意听觉处理的失匹配负波事件相关电位，对19名有语音缺陷的儿童和15名对照组儿童进行了测试。有语音缺陷但尚未患诵读困难的儿童，其失匹配负波模式与诵读困难者相似。该缺陷具有言语特异性，因为仅在音节方面存在显著的组间差异，而在纯音方面则没有。
