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Updated: Jul 12, 2026
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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
Published on: January 26, 2016
Auditory-evoked brainstem responses elicited by maximum-length sequences in normal and sensorineural ears
G Lina-Granade1, L Collet, A Morgon
1Laboratoire de Physiologie Sensorielle, URA-CNRS 1447, Université Claude-Bernard, Lyon, France.
Summary
Maximum-length sequences (MLSs) provide efficient auditory brainstem responses (ABRs) comparable to conventional methods. MLS-ABRs accurately assess hearing thresholds, especially for high frequencies, and allow simultaneous binaural recording.
Area of Science:
- Audiology
- Neuroscience
- Signal Processing
Background:
- Auditory brainstem responses (ABRs) are crucial for assessing auditory pathway function.
- Conventional ABR methods can be time-consuming and limited in stimulus presentation rates.
- Maximum-length sequences (MLSs) offer a novel approach for efficient ABR acquisition.
Purpose of the Study:
- To evaluate the efficacy of MLS-based ABRs compared to conventional ABRs.
- To assess the accuracy of MLS-ABR for determining hearing thresholds.
- To investigate the utility of MLS for simultaneous binaural ABR recordings.
Main Methods:
- ABRs were recorded using MLS pseudo-random pulse trains.
- Stimulus rates were high, allowing simultaneous bilateral recordings.
- Results were compared against conventional averaging techniques.
Main Results:
- MLS-ABRs generated comparable waveforms to conventional ABRs in normally hearing subjects.
- Wave latencies increased, and amplitudes decreased with MLS-ABRs.
- MLS-ABR thresholds closely matched conventional ABR thresholds, particularly for high-frequency hearing.
- Binaural MLS-ABR recordings successfully distinguished individual ear responses.
Conclusions:
- MLS is a viable and efficient technique for ABR assessment.
- MLS-ABRs provide reliable hearing threshold data, correlating with audiometric findings.
- Simultaneous binaural recording capability enhances diagnostic potential for auditory pathway evaluation.
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