Abstract

EDITORIAL 1603 Developmental dyslexia but the dyslexics differed from the ............. ............ ............. ............ ............. ............ ............ controls in certain respects. Firstly, when reading silently they showed diminished activation of the left tem- Developmental dyslexia poroparietal region generally. Secondly, they showed increased activity in the region of Broca’s area when reading W A Lishman aloud, but not when reading silently, ................................................................................... which perhaps reflected compensatory efforts to decode print successfully for explicit reading. Thirdly, and perhaps most interestingly, they consistently showed decreased activation of area he term developmental dyslexia During performance of a visually BA37 in the posterior part of the inferior ("specific reading retardation") presented phonological rhyming task, temporal lobe. T refers to an unexpected difficulty the dyslexics activated severely in reading in children and adults who restricted areas of the language cortex, Area BA37 appears to play a critical otherwise possess the intelligence, moti- in fact Broca’s area alone, whereas the role in the retrieval of the names of words and objects. When damaged, for vation, and schooling considered neces- controls showed widespread activations sary for accurate and fluent reading. example after a stroke, the patient from Wernicke’s area posteriorly to The concept has had a chequered