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Perception of non-verbal auditory stimuli in Italian dyslexic children
Chiara Cantiani1, Maria Luisa Lorusso, Camilla Valnegri
1Unit of Cognitive Psychology and Neuropsychology, Department of Child Psychiatry, Scientific Institute E. Medea, Bosisio Parini, Italy.
Abstract:
Auditory temporal processing deficits have been proposed as the underlying cause of phonological difficulties in Developmental Dyslexia. The hypothesis was tested in a sample of 20 Italian dyslexic children aged 8-14, and 20 matched control children. Three tasks of auditory processing of non-verbal stimuli, involving discrimination and reproduction of sequences of rapidly presented short sounds were expressly created. Dyslexic subjects performed more poorly than control children, suggesting the presence of a deficit only partially influenced by the duration of the stimuli and of inter-stimulus intervals (ISIs).
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