Functional neuroanatomy of developmental dyslexia: the role of orthographic depth

Frontiers in Human Neuroscience

Fabio eRichlan¹ 

[1] University of Salzburg;

关键词: Brain;    Language;    Neuroimaging;    fMRI;    PET;    developmental dyslexia;   

DOI  :  10.3389/fnhum.2014.00347

来源: DOAJ

【 摘 要 】

Orthographic depth (i.e., the complexity, consistency, or transparency of grapheme-phoneme correspondences in written alphabetic language) plays an important role in the acquisition of reading skills. Correspondingly, developmental dyslexia is characterized by different behavioral manifestations across languages varying in orthographic depth. This review focuses on the question of whether these different behavioral manifestations are associated with different functional neuroanatomical manifestations. It provides a review and critique of cross-linguistic brain imaging studies of developmental dyslexia. In addition, it includes an analysis of state-of-the-art functional neuroanatomical models of developmental dyslexia together with orthography-specific predictions derived from these models. These predictions should be tested in future brain imaging studies of typical and atypical reading in order to refine the current neurobiological understanding of developmental dyslexia, especially with respect to orthography-specific and universal aspects.

【 授权许可】

Unknown