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The effects of electrode montages in the auditory brainstem response to level specific CE-chirp

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) The effects of electrode montages in the auditory brainstem response to level specific CE-chirp. In: 10th Biennial Asia Pacific Conference on Speech, Hearing and Language (APC SLH2017), 17th-19th Sept. 2017, Narita, Japan. (Unpublished)

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Abstract

Purpose of the study: To compare the ABR findings from two different electrode montages (ipsilateral and vertical montages) elicited using a level-specific (LS)-CE-Chirp® in normally-hearing subjects at multiple intensities levels. Methods: Twenty-nine normally-hearing adults (18 females, 11 male) participated. The ABR were acquired using two different stopping criteria, (1) a fixed-signal averaging 4000 sweeps and, (2) a minimum quality indicator of Fmp=3.1 with a minimum of 800 sweeps in both electrode montages. Results: Wave V amplitudes were significantly larger in the LS CE-Chirp® recorded from the vertical montage than the ipsilateral montage and from the LS CE-Chirp® than the click ABRs. Waves I and III amplitudes were significantly larger and consistently identified 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 of 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 of (i) larger waves I and III amplitudes and (ii) all prominent waves were consistently identified.

Item Type: Conference or Workshop Item (Poster)
Additional Information: 4465/58811
Uncontrolled Keywords: electrode montages, the auditory brainstem
Subjects: R Medicine > RF Otorhinolaryngology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Allied Health Sciences > Department of Audiology and Speech-Language Pathology
Depositing User: Dr Ahmad Aidil Arafat Dzulkarnain
Date Deposited: 27 Oct 2017 11:43
Last Modified: 27 Oct 2017 11:43
URI: http://irep.iium.edu.my/id/eprint/58811

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