Functional neuroimaging studies of reading and reading disability (developmental dyslexia)

Kenneth R. Pugh, W. Einar Mencl, Annette R. Jenner, Leonard Katz, Stephen J. Frost, Jun-Ren Li, Sally E. Shaywitz, Haskins Laboratories

研究成果: 雜誌貢獻综述文章

389 引文 斯高帕斯(Scopus)


Converging evidence from a number of neuroimaging studies, including our own, suggest that fluent word identification in reading is related to the functional integrity of two consolidated left hemisphere (LH) posterior systems: A dorsal (temporo-parietal) circuit and a ventral (occipitotemporal) circuit. This posterior system is function ally disrupted in developmental dyslexia. Reading disabled readers, relative to nonimpaired readers, demonstrate heightened reliance on both inferior frontal and right hemisphere posterior regions, presumably in compensation for the LH posterior difficulties. We propose a neurobiological account suggesting that for normally developing readers the dorsal circuit predominates at first, and is associated with analytic processing necessary for learning to integrate orthographic features with phonological and lexical-semantic features of printed words. The ventral circuit constitutes a fast, late-developing, word identification system which underlies fluent word recognition in skilled readers. (C) 2000 Wiley-Liss, Inc.

頁(從 - 到)207-213
期刊Mental Retardation and Developmental Disabilities Research Reviews
出版狀態已發佈 - 2000 九月 19

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Neuropsychology and Physiological Psychology
  • Genetics(clinical)

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