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Updated: May 4, 2026

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
Published on: January 29, 2014
Right cerebral hemisphere and central auditory processing in children with developmental dyslexia
Paulina C Murphy-Ruiz1, Yolanda R Peñaloza-López2, Felipe García-Pedroza3
1Department of Audiology and Communication Disorders, National Institute of Rehabilitation, México, Mexico City.
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.
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