THE EFFECT OF LEARNING DISABILITY ON CONTRALATERAL SUPPRESSION OF OTOACOUSTIC EMISSIONS IN PRIMARY STUDENTS

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SAROUGH FARAHANI S.; ADEL GHAHRAMAN M.; AMIRI MARZIEH; JALAEI SHOHREH

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Journal: Auditory and Vestibular Research Journal Year:2006 | Volume:15 | Issue:1 (25) Page(s): 32-38

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Title

THE EFFECT OF LEARNING DISABILITY ON CONTRALATERAL SUPPRESSION OF OTOACOUSTIC EMISSIONS IN PRIMARY STUDENTS

Author(s)

SAROUGH FARAHANI S. | ADEL GHAHRAMAN M. | AMIRI MARZIEH | JALAEI SHOHREH | Issue Writer Certificate

Keywords

TRANSIENT EVOKED OTOACOUSTIC EMISSIONSQ3

TONE BURSTQ3

CONTRALATERAL SUPPRESSIONQ3

MEDIAL OLIVOCOCHLEAR BUNDLEQ3

LEARNING DISABILITIESQ2

WHITE NOISEQ3

Abstract

Background and Aim: One of the most significant complaints of children with learning disability (LD) is difficulty in understanding speech in the presence of background noise. Different studies have shown that the MEDIAL OLIVOCOCHLEAR BUNDLE (MOCB) may play a role in hearing in noise. The MOCB function can be evaluated by the CONTRALATERAL SUPPRESSION of TONE BURST evoked otoacoustic emissions (TBEOAEs).The aim of the present study was to evaluate frequency specifications of MOCB by the CONTRALATERAL SUPPRESSION of TBEOAEs at 1,2,3 and 4 KHz in response to contralateral WHITE NOISE in LD students.Materials and Methods: This case-control study was conducted on 34 LD students aged 7-11 years and 31 normal students matched for age. The CONTRALATERAL SUPPRESSION of TBEOAEs was evaluated by comparing TBEOAEs amplitudes with and without contralateral WHITE NOISE.Results: In the absence of noise there was no significant difference between TBEOAEs amplitudes of two groups. In the presence of noise significant decrease-was seen in TBEOAEs amplitudes at 1,2,3 and 4 KHz in both groups. In LD students the amount of this decrement at 1,2 and 4 KHz was lower than in the normal students.Conclusion: A significant diminished suppression effect at 1,2 and 4 KHz in LD students indicates that at these frequency regions MOCB function was reduced. Therefore it suggests that the assessment of MOCB by evaluating the suppression effect of TBEOAEs included in the test battery approach used in the diagnostic of LD students.

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References

A COMPARATIVE STUDY ON THE CONTRALATERAL SUPPRESSION EFFECTS OF ACOUSTIC STIMULATIONS ON OTOACOUSTIC EMISSIONS

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APA: Copy

SAROUGH FARAHANI, S., ADEL GHAHRAMAN, M., AMIRI, MARZIEH, & JALAEI, SHOHREH. (2006). THE EFFECT OF LEARNING DISABILITY ON CONTRALATERAL SUPPRESSION OF OTOACOUSTIC EMISSIONS IN PRIMARY STUDENTS. AUDITORY AND VESTIBULAR RESEARCH, 15(1 (25)), 32-38. SID. https://sid.ir/paper/106271/en

Vancouver: Copy

SAROUGH FARAHANI S., ADEL GHAHRAMAN M., AMIRI MARZIEH, JALAEI SHOHREH. THE EFFECT OF LEARNING DISABILITY ON CONTRALATERAL SUPPRESSION OF OTOACOUSTIC EMISSIONS IN PRIMARY STUDENTS. AUDITORY AND VESTIBULAR RESEARCH[Internet]. 2006;15(1 (25)):32-38. Available from: https://sid.ir/paper/106271/en

IEEE: Copy

S. SAROUGH FARAHANI, M. ADEL GHAHRAMAN, MARZIEH AMIRI, and SHOHREH JALAEI, “THE EFFECT OF LEARNING DISABILITY ON CONTRALATERAL SUPPRESSION OF OTOACOUSTIC EMISSIONS IN PRIMARY STUDENTS,” AUDITORY AND VESTIBULAR RESEARCH, vol. 15, no. 1 (25), pp. 32–38, 2006, [Online]. Available: https://sid.ir/paper/106271/en

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