Benefits of Bimodal Stimulation to Speech Perception in Noise and Silence

Abstract

Introduction Understanding all the benefits of bimodality with self-assessment questionnaires on the effect of hearing on quality of life is still necessary.

Objective To present whether bimodality still offers hearing benefits to the population who uses acoustic stimulation associated with electrical stimulation.

Methods The present study included 13 participants aged between 16 and 80 years old who were users of cochlear implants from Cochlear Corporation and hearing aids. All patients underwent the Hearing in Noise Test, and their visual analog scale score was obtained. Four-tone means were collected, and the participants answered the Speech, Spatial and Hearing Qualities questionnaire.

Results Bimodal users had an average sentence recognition rate of 76.0% in silence and 67.6% in fixed noise, and the signal-to-noise ratio in adaptive noise was +2.89dB. In addition, a lower level of difficulty was observed in the test using the visual analog scale. The domain with the highest average was auditory qualities (6.50), followed by spatial hearing (6.26) and hearing for speech (5.81). Individuals with an average between 50 and 70 dB of hearing level showed better sentence recognition in silence and noise.

Conclusion Bimodal stimulation showed benefits for users with different degrees of hearing loss; however, individuals who presented greater hearing residue had better performance in speech recognition with noise and in silence in addition to a good perception of hearing quality.

Keywords

cochlear implant - hearing aids - hearing loss - speech perception

Publikationsverlauf

Eingereicht: 25. Juli 2022

Angenommen: 26. September 2022

Artikel online veröffentlicht:
26. September 2023

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