Study of the P300 event-related potential through brain mapping in phonological dyslexics.
The auditory P300 was studied through brain mapping in 10 phonological dyslexics (7 M and 3 F), who were found to differ significantly from normals in presenting a longer P300 latency and smaller amplitude on the N2-P3 wave. Interesting too was the asymmetry of the P300 distribution between the two hemispheres, with less amplitude on the right. These findings confirm the hypothesis of reduced right hemisphere functioning during the process of information analysis in phonological dyslexics.
Mazzotta
G
G
Department of Nervous and Mental Diseases, University of Perugia.
Gallai
V
V
D001288:Attention / Q000502:physiology*; D001931:Brain Mapping; D002648:Child; D004292:Dominance, Cerebral; D004410:Dyslexia / Q000503:physiopathology*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D011930:Reaction Time