Influence of two-electrode montages on the level-specific (LS) CE-Chirp auditory brainstem response (ABR) at multiple intensity levels
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-experim...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Taylor and Francis
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/56566/1/Influence%20of%20two%20electrode%20montages%20on%20the%20level%20specific%20LS%20CE%20Chirp%20auditory%20brainstem%20response%20ABR%20at%20multiple%20intensity%20levels.pdf http://irep.iium.edu.my/56566/13/56566-Influence%20of%20two-electrode%20montages%20on%20the%20level-specific.pdf http://irep.iium.edu.my/56566/7/56566-Influence%20of%20two-electrode%20montages%20on%20the%20level-specific_SCOPUS.pdf http://irep.iium.edu.my/56566/ http://www.tandfonline.com/doi/full/10.1080/14992027.2017.1313462 |
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| Summary: | 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. |
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