Auditory processing assessment in the perisylvian syndrome / Caracterização dos achados da avaliação do processamento auditivo na Sindrome Perysylviana

AUTOR(ES)

Mirela Boscariol

DATA DE PUBLICAÇÃO

2010

RESUMO

Perisylvian syndrome (PS) comprises a variety of clinical manifestations due to lesions on the perisylvian or opercular regions. Bilateral perisylvian polymicrogyria is a malformation of cortical development characterized by excessively small gyri seen around the Sylvian fissure on magnetic resonance imaging. Studies suggest that language and learning impairment may be part of this syndrome, whose clinical may vary from specific language impairment to the severe cases involving pseudobulbar signs and epilepsy. The areas of auditory processing, a complex set of interdependent cortical abilities due to a sound stimulus, may be compromised because perisylvian areas harbor the auditory processing function. Thus, this study was to evaluate language, learning and auditory processing abilities in PS and in children with normal magnetic resonance imaging and associates them with the neuropsychological, neurological and neuroimaging findings. Children with a history of language and learning impairment in the presence of perisylvian polymicrogyria and in the presence of normal neuroimaging were assessed with neurological, neuropsychological and assessments of language, literacy and auditory processing. The results showed that the specific language impairment and learning disabilities can coexist with auditory processing disorder and children with malformation of cortical development may have more significant neurolinguistic deficits. Our study concluded that the polymicrogyric cortex can be functionally abnormal and display that cortical malformations if present should be considered risk factors for the specific language impairment, learning impairments and auditory processing disorders

ASSUNTO(S)

polimicrogiria language disorders dyslexi dislexia auditory perception distúrbios da linguagem polymicrogyria percepção auditiva

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