Developmental Changes of N400 Event Related Potential of a Semantic Category Decision Task and Modality Specific Findings in Patients with Developmental Dyslexia

DOI PubMed 1 Citations 20 References
  • Oana Shingo
    Department of Developmental Disorders, National Institute of Mental Health National Center of Neurology and Psychiatry Department of Pediatrics, School of Medicine, Tokyo Medical University
  • Inagaki Masumi
    Department of Developmental Disorders, National Institute of Mental Health National Center of Neurology and Psychiatry
  • Suzuki Seiko
    Department of Developmental Disorders, National Institute of Mental Health National Center of Neurology and Psychiatry
  • Horimoto Reiko
    Department of Developmental Disorders, National Institute of Mental Health National Center of Neurology and Psychiatry
  • Kaga Makiko
    Department of Developmental Disorders, National Institute of Mental Health National Center of Neurology and Psychiatry

Bibliographic Information

Other Title
  • 刺激モダリティ別事象関連電位Ｎ４００の発達と読字障害における特徴―意味カテゴリー一致判断課題による検討―
  • 意味カテゴリー一致判断課題による検討

Search this article

Abstract

We investigated modality-specific changes in N400 event related potential using a semantic category decision task in 38 control subjects and 8 patients with developmental dyslexia. In control children under 10 years old, auditory N400 showed a negative deflection over the fronto-centro-parietal areas with substantial amplitude. Control children over 10 years old showed a similar pattern of N400 waves in a visual and an auditory-visual modality, suggesting that the visual modality becomes dominant in the late teens. Dyslexic children showed more errors on a visual than auditory modality task with poorer N400 waves for visual stimuli. However, peak latencies of N400 in an auditoryvisual modality were almost the same for auditory stimuli in control children. Differences in the N400 pattern in children might reflect the fragility and reversibility of the semantic processes through stimulus modalities.

Journal

  • NO TO HATATSU

    NO TO HATATSU 38 (6), 431-438, 2006

    THE JAPANESE SOCIETY OF CHILD NEUROLOGY

Citations (1)*help

See more

References(20)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top