Developmental dyslexia: dysfunction of a left hemisphere reading network
- Department of Psychology, Center for Neurocognitive Research, University of Salzburg, Salzburg, Austria
This mini-review summarizes and integrates findings from recent meta-analyses and original neuroimaging studies on functional brain abnormalities in dyslexic readers. Surprisingly, there is little empirical support for the standard neuroanatomical model of developmental dyslexia, which localizes the primary phonological decoding deficit in left temporo-parietal (TP) regions. Rather, recent evidence points to a dysfunction of a left hemisphere reading network, which includes occipito-temporal (OT), inferior frontal, and inferior parietal regions.
Keywords: brain, developmental dyslexia, fMRI, meta-analysis, neuroimaging, reading
Citation: Richlan F (2012) Developmental dyslexia: dysfunction of a left hemisphere reading network. Front. Hum. Neurosci. 6:120. doi: 10.3389/fnhum.2012.00120
Received: 23 February 2012; Accepted: 16 April 2012;
Published online: 01 May 2012.
Copyright: © 2012 Richlan. This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
*Correspondence: Fabio Richlan, Department of Psychology, Center for Neurocognitive Research, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria. e-mail: fabio.richlan@sbg.ac.at