Brain mechanisms in normal and dyslexic readers.
Developmental dyslexics, individuals with an unexplained difficulty reading, have been shown to have deficits in phonological processing -- the awareness of the sound structure of words -- and, in some cases, a more fundamental deficit in rapid auditory processing. In addition, dyslexics show a disruption in white matter connectivity between posterior and frontal regions. These results give continued support for a neurobiological etiology of developmental dyslexia. However, more research will be required to determine the possible causal relationships between these neurobiological disruptions and dyslexia.
Temple
Elise
E
Department of Human Development, Martha Van Rensselaer Hall, Cornell University, Ithaca, New York 14853, USA. et62@cornell.edu
D001307:Auditory Perception / Q000502:physiology; D001921:Brain / Q000502:physiology* / Q000503:physiopathology; D002648:Child; D002657:Child Development; D004410:Dyslexia / Q000503:physiopathology*; D005625:Frontal Lobe / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D010296:Parietal Lobe / Q000502:physiology; D011932:Reading; D013067:Speech Perception / Q000502:physiology; D013702:Temporal Lobe / Q000502:physiology