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Audiology Research
Volume 3
Issue 1
10.4081/audiores.2013.e8
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Article

Effect of Stimulus Polarity on Speech Evoked Auditory Brainstem Response

by
Kaushlendra Kumar
,
Jayashree S. Bhat
,
Pearl Edna D’Costa
,
Manav Srivastava
and
Mohan Kumar Kalaiah
*
Department of Audiology and Speech Language Pathology, Kasturba Medical College (Manipal University), Mangalore, Karanataka, India
*
Author to whom correspondence should be addressed.
Audiol. Res. 2013, 3(1), e8; https://doi.org/10.4081/audiores.2013.e8
Submission received: 29 July 2013 / Revised: 20 November 2013 / Accepted: 11 December 2013 / Published: 3 January 2014

Abstract

The aim of the present study was to investigate the effect of stimulus polarity on speech evoked auditory brainstem response (ABR). In order to accomplish it, speech evoked ABR was recorded with various stimulus polarities from 17 normally hearing adults. The result of the study shows differential effect of stimulus polarity on components of speech evoked ABR. Latency of peaks for onset, sustained and offset responses of speech evoked ABR were found to be not significantly different across stimulus polarities. In contrast, the amplitude of first formant and high frequency components was found to be significantly reduced for alternating polarity compared to single polarity, while amplitude of fundamental frequency response was not affected by polarity of the stimuli. Thus speech evoked ABR may be recorded using single polarity rather than using alternating polarities.
Keywords: speech evoked auditory brainstem response; frequency following response; polarity speech evoked auditory brainstem response; frequency following response; polarity

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MDPI and ACS Style

Kumar, K.; Bhat, J.S.; D’Costa, P.E.; Srivastava, M.; Kalaiah, M.K. Effect of Stimulus Polarity on Speech Evoked Auditory Brainstem Response. Audiol. Res. 2013, 3, e8. https://doi.org/10.4081/audiores.2013.e8

AMA Style

Kumar K, Bhat JS, D’Costa PE, Srivastava M, Kalaiah MK. Effect of Stimulus Polarity on Speech Evoked Auditory Brainstem Response. Audiology Research. 2013; 3(1):e8. https://doi.org/10.4081/audiores.2013.e8

Chicago/Turabian Style

Kumar, Kaushlendra, Jayashree S. Bhat, Pearl Edna D’Costa, Manav Srivastava, and Mohan Kumar Kalaiah. 2013. "Effect of Stimulus Polarity on Speech Evoked Auditory Brainstem Response" Audiology Research 3, no. 1: e8. https://doi.org/10.4081/audiores.2013.e8

APA Style

Kumar, K., Bhat, J. S., D’Costa, P. E., Srivastava, M., & Kalaiah, M. K. (2013). Effect of Stimulus Polarity on Speech Evoked Auditory Brainstem Response. Audiology Research, 3(1), e8. https://doi.org/10.4081/audiores.2013.e8

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