Using Auditory Characteristics to Select Hearing Aid Compression Speeds for Presbycusic Patients

Abstract

ObjectivesThis study aimed to select the optimal hearing aid compression speeds (fast-acting and slow-acting) for presbycusic patients by using auditory characteristics including temporal modulation and speech-in-noise performance.MethodsIn total, 24 patients with unilateral or bilateral moderate sensorineural hearing loss who scored higher than 21 on the Montreal Cognitive Assessment (MoCA) test participated in this study. The electrocochleogram (ECochG) results, including summating potentials (SP) and action potentials (AP), were recorded. Subjects' temporal modulation thresholds and speech recognition at 4 individualized signal-to-noise ratios were measured under three conditions, namely, unaided, aided with fast-acting compression (FAC), and aided with slow-acting compression (SAC).ResultsThe results of this study showed that modulation discrimination thresholds in the unaided (−8.14 dB) and aided SAC (−8.19 dB) conditions were better than the modulation thresholds in the FAC (−4.67 dB) conditions. The speech recognition threshold (SRT75%) for FAC (5.21 dB) did not differ significantly from SAC (3.39 dB) (p = 0.12). A decision tree analysis showed that the inclusion of the AP, unaided modulation thresholds, and unaided SRT75% may correctly identify the optimal compression speeds (FAC vs. SAC) for individual presbycusic patients with up to 90% accuracy.ConclusionBoth modes of compression speeds improved a presbycusic patient's speech recognition ability in noise. The SAC hearing aids may better preserve the modulation thresholds than the FAC hearing aids. The measurement of AP, along with the unaided modulation thresholds and unaided SRT75%, may help guide the selection of optimal compression speeds for individual presbycusic patients.

Correlation between hearing loss and mild cognitive impairment in the elderly population: Mendelian randomization and cross-sectional study

“…The incidence of hearing loss escalates significantly with advancing age, rising from 12.7% at 60 years to 58.6% at 90 years. Moreover, a substantial portion (58%) of individuals with disabling hearing loss are aged 60 years and above ( Lin et al, 2013 ; Cunningham and Tucci, 2017 ; Clark and Swanepoel, 2021 ; McMahon et al, 2021 ; Zhang et al, 2022 ; D'Haese et al, 2023 ).…”

Data_Sheet_1.CSV

“…The incidence of hearing loss escalates significantly with advancing age, rising from 12.7% at 60 years to 58.6% at 90 years. Moreover, a substantial portion (58%) of individuals with disabling hearing loss are aged 60 years and above (Lin et al, 2013;Cunningham and Tucci, 2017;Clark and Swanepoel, 2021;McMahon et al, 2021;Zhang et al, 2022;D'Haese et al, 2023).…”

Data_Sheet_3.CSV

“…The incidence of hearing loss escalates significantly with advancing age, rising from 12.7% at 60 years to 58.6% at 90 years. Moreover, a substantial portion (58%) of individuals with disabling hearing loss are aged 60 years and above (Lin et al, 2013;Cunningham and Tucci, 2017;Clark and Swanepoel, 2021;McMahon et al, 2021;Zhang et al, 2022;D'Haese et al, 2023).…”