Speech auditory evoked potentials in dyslexia
Journal of Communication Disorders, Deaf Studies & Hearing Aids

Journal of Communication Disorders, Deaf Studies & Hearing Aids
Open Access

ISSN: 2375-4427

Speech auditory evoked potentials in dyslexia

International Conference and Expo on Audiology and Hearing Devices

August 17-18, 2015 Birmingham, UK

Kolkaila E and El-Mehallawi T

Posters-Accepted Abstracts: Commun Disord Deaf Stud Hearing Aids

Abstract :

Background: Dyslexia has been used to refer to the specific learning problem of reading. The temporal auditory processing deficit
theory suggests that one causal deficit of dyslexia is an impaired ability to process sounds.
Objectives: To study auditory temporal processing in children with dyslexia using two electrophysiological tests.
Subjects & Methods: 80 children participated in this study. They were divided into control group with 30 children and study group
with 50 children. All participants had normal hearing sensitivity, normal middle ear function with average intelligent. All children
were examined using speech auditory brainstem response and cortical auditory evoked potentials with /da/ speech stimulus at
intensity 90 dBnHL.
Results: It showed that there was significant statistical difference between control and study group in both electrophysiological tests.
Prolonged latency and reduced amplitude were recorded in children with dyslexia in S-ABR as well as in cortical auditory evoked
Conclusions: Children with dyslexia are deficit in auditory temporal processing and encoding of auditory information.
Electrophysiological tests are sensitive in cases of dyslexia, so they were considered good diagnostic tests in such cases.