Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Smoking on Contralateral Suppression of Distortion Product Oto Acoustic Emissions (DPOAEs)

Version 1 : Received: 7 September 2021 / Approved: 10 September 2021 / Online: 10 September 2021 (11:29:00 CEST)

How to cite: Nadella, S. Effect of Smoking on Contralateral Suppression of Distortion Product Oto Acoustic Emissions (DPOAEs). Preprints 2021, 2021090187 (doi: 10.20944/preprints202109.0187.v1). Nadella, S. Effect of Smoking on Contralateral Suppression of Distortion Product Oto Acoustic Emissions (DPOAEs). Preprints 2021, 2021090187 (doi: 10.20944/preprints202109.0187.v1).

Abstract

The present study compared the contralateral suppression and the amplitude of distortion product otoacoutsic emissions (DPOAEs) between smokers and non-smokers to determine the influence of smoking. Thirty smokers and thirty non-smokers within the age range of 18-40 years with a normal hearing sensitivity were considered for the study. For both the groups, DPOAEs were measured and the efferent auditory system functioning was measured by presenting the white noise of 50 dB HL to the contralateral side, while recording the DPOAEs. There was no significant effect of age on the amplitude of DPOAEs in both the groups. However, there were significant differences in the amplitude of DPOAEs between smokers and non-smokers. The amount of suppression and DPOAE amplitude were reduced in smokers when compared to non-smokers. The study found no significant correlation between the amount of smoking and amount of suppression between smokers and non-smokers. However, there were significant correlations between the amount of smoking and DPOAE at low and mid frequencies between smokers and non-smokers. Therefore, the present study highlights the increased damage to the efferent auditory system risk and the smoking ill-effects on the efferent auditory system.

Keywords

Smoking; DPOAEs; Contralateral supression; OAE; Non-smokers; auditory system; ill-effects on efferent system

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