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Influence of two-electrode montages on the level-specific (LS) CE-Chirp auditory brainstem response (ABR) at multiple intensity levels

Dzulkarnain, Ahmad Aidil Arafat and Noor Ibrahim, Siti Hajra Mu’minah and Anuar, Nur Farah Aida and Abdullah, Siti Aisyah and Tengku Zam Zam, Tengku Zulaila Hasma and Rahmat, Sarah and Mohd Ruzai, Muhammad Amar (2017) Influence of two-electrode montages on the level-specific (LS) CE-Chirp auditory brainstem response (ABR) at multiple intensity levels. International Journal of Audiology, 56 (10). pp. 723-732. ISSN 1499-2027 (In Press)

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Abstract

Objective: To investigate the influence of two different electrode montages (ipsilateral: reference to mastoid and vertical: reference to nape of neck) to the ABR results recorded using a level-specific (LS)-CE-Chirp® in normally hearing subjects at multiple intensities levels. Design: Quasi-experimental and repeated measure study designs were applied in this study. Two different stopping criteria were used, (1) a fixed-signal averaging 4000 sweeps and, (2) a minimum quality indicator of Fmp = 3.1 with a minimum of 800 sweeps. Study sample: Twenty-nine normally hearing adults (18 females, 11 male) participated. Results: Wave V amplitudes were significantly larger in the LS CE-Chirp® recorded from the vertical montage than the ipsilateral montage. Waves I and III amplitudes were significantly larger from the ipsilateral LS CE-Chirp® than from the other montages and stimulus combinations. The differences in the quality of the ABR recording between the vertical and ipsilateral montages were marginal. Conclusions: Overall, the result suggested that the vertical LS CE-Chirp® ABR had a high potential for a threshold-seeking application, because it produced a higher wave V amplitude. The Ipsilateral LS CE-Chirp® ABR, on the other hand, might also have a high potential for the site of lesion application, because it produced larger waves I and III amplitudes.

Item Type: Article (Journal)
Additional Information: 4465/56566
Uncontrolled Keywords: LS CE-Chirp; electrode montage; vertical montage; nape electrode; auditory brainstem response
Subjects: R Medicine > RF Otorhinolaryngology
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Allied Health Sciences > Department of Audiology and Speech-Language Pathology
Depositing User: Dr Ahmad Aidil Arafat Dzulkarnain
Date Deposited: 04 May 2017 09:45
Last Modified: 25 Aug 2017 11:38
URI: http://irep.iium.edu.my/id/eprint/56566

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