نوع مقاله : مقاله پژوهشی
نویسندگان
1 عضو هیئت علمی گروه شنوایی شناسی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی همدان، همدان، ایران
2 استاد گروه گوش و حلق و بینی دانشکده پزشکی دانشگاه علوم پزشکی همدان
3 دانشیار گروه پزشکی اجتماعی دانشده پزشکی دانشگاه علوم پزشکی همدان
4 عضو هیئت علمی گروه شنوایی شناسی دانشگاه علوم پزشکی همدان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and aims: A common complaint of dyslexic children is difficulty in understanding speech in the presence of background noise. Previous studies have suggested that the Medial Olivocochlear Bundle (MOCB) may play a role in speech hearing in noise. The MOCB function can be evaluated by the suppression effect of the Transient Evoked Otoacoustic Emissions (TEOAE) in response to Contralateral Acoustic Stimulation (CAS). The present study was conducted to investigate the suppression effect of TEOAE in dyslexic children.
Materials and Methods: The study groups comprised 32 dyslexic children aged 8–13 years with normal hearing and 32 controls matched for gender and age. The suppression effect of TEOAE was evaluated comparing the TEOAE levels with and without CAS. The dyslexic children were screened by screening inventory reading test.
Results: There were no significant differences in TEOAE inhibition between normal and dyslexic groups. TEOAE amplitude in right ear was higher than that of left ones in dyslexic children while this finding was not observed in the normal group.
Conclusion: The greater amplitude of right TEOAE in dyslexic children can be due to asymmetric performance of MOCB. This pattern was not observed in normal children.
کلیدواژهها [English]