Simultaneous acquisition of 80 Hz ASSRs and ABRs from quasi ASSRs for threshold estimation

Ear and Hearing
Magdalena LachowskaOzcan Ozdamar

Abstract

Both 80 Hz auditory steady state responses (ASSRs) and tone burst auditory brainstem responses (ABRs) have been shown to provide reasonable estimates of the behavioral thresholds. Although ASSRs provide statistically objective estimates that can be easily automated by computers, they present no information for the neurophysiological interpretation of the results. ABRs, on the other hand, do not provide easily automated information and usually need expert interpretation of the recorded waveforms. A recently developed continuous loop averaging deconvolution algorithm offers an alternative solution by acquiring slightly jittered 80 Hz quasi auditory steady state responses (QASSRs), thus enabling the acquisition of both recordings simultaneously. The purpose of this study is to investigate a specially developed 80 Hz QASSR paradigm for simultaneous acquisition for both responses for threshold detection purposes. Sixteen ears from eight adults with normal hearing were tested. Amplitude modulated QASSRs were obtained using slightly jittered temporal sequences of tone bursts presented at a mean rate of 78.125 Hz. Four carrier frequencies (500, 1000, 2000, and 4000 Hz) at several stimulus intensity levels were monaurally presented and ...Continue Reading

References

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Citations

Feb 8, 2016·Journal of Clinical Monitoring and Computing·Stefan RamppJulian Prell
Aug 2, 2014·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Stefan RamppJulian Prell
Aug 21, 2021·Journal of the Association for Research in Otolaryngology : JARO·Tao WangXiaodan Tan

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