Right cerebral hemisphere and central auditory processing in children with developmental dyslexia.
| Autor: | Murphy-Ruiz PC; Department of Audiology and Communication Disorders, National Institute of Rehabilitation, México, Mexico City., Peñaloza-López YR; Laboratory of Central Auditory Processes Alterations Research, National Institute of Rehabilitation, México, Mexico City., García-Pedroza F; School of Medicine, Department of Familial Medicine, UNAM, México, Mexico City., Poblano A; Laboratory of Cognitive Neurophysiology, National Institute of Rehabilitation, México, Mexico City. |
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| Jazyk: | angličtina |
| Zdroj: | Arquivos de neuro-psiquiatria [Arq Neuropsiquiatr] 2013 Nov; Vol. 71 (11), pp. 883-9. |
| DOI: | 10.1590/0004-282X20130172 |
| Abstrakt: | Objective: We hypothesized that if the right hemisphere auditory processing abilities can be altered in children with developmental dyslexia (DD), we can detect dysfunction using specific tests. Method: We performed an analytical comparative cross-sectional study. We studied 20 right-handed children with DD and 20 healthy right-handed control subjects (CS). Children in both groups were age, gender, and school-grade matched. Focusing on the right hemisphere's contribution, we utilized tests to measure alterations in central auditory processing (CAP), such as determination of frequency patterns; sound duration; music pitch recognition; and identification of environmental sounds. We compared results among the two groups. Results: Children with DD showed lower performance than CS in all CAP subtests, including those that preferentially engaged the cerebral right hemisphere. Conclusion: Our data suggests a significant contribution of the right hemisphere in alterations of CAP in children with DD. Thus, right hemisphere CAP must be considered for examination and rehabilitation of children with DD. |
| Databáze: | MEDLINE |
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