P39Session 1 (Monday 12 January 2026, 15:00-17:30)What are the links between impaired speech-in-noise intelligibility and hyperacusis?
Hyperacusis, or the “discomfort for sounds that would be acceptable to most normally hearing people,” is a complex hearing disorder whose pathophysiological mechanisms are often compared to those of tinnitus. However, some recent studies also suggest, albeit tentatively, a specific link with impaired speech-in-noise intelligibility. From a certain perspective, the discomfort associated with hyperacusis would interfere with speech processing, particularly in noisy environments. Nevertheless, hyperacusis and speech-in-noise intelligibility could share a common origin in participants overexposed to noise, manifesting as various forms of hidden hearing loss. In a recent study, we highlighted a strong link between speech-in-noise intelligibility, assessed by questionnaire and a logatome intelligibility task, and the degree of hyperacusis, assessed by questionnaire and visual analog scales (Fernandez & Isnard, 2025, doi:10.1016/j.heares.2025.109436). Hyperacusis participants also exhibited more hearing loss on the extended high-frequency audiogram. This new data supports the hypothesis that hyperacusis is linked to peripheral hearing loss, impairing the rapid temporal processing necessary for speech-in-noise intelligibility. Therefore, here, we propose to compare these data with the hypotheses of various studies highlighting such a link between speech-in-noise intelligibility and hyperacusis. Based on current knowledge, these analyses allow us to: (1) suggest making a clearer distinction between different types of hyperacusis, of peripheral or central origin; (2) support the recommendation for a more systematic joint assessment of speech-in-noise intelligibility and hyperacusis, including by rapid screening, to corroborate a diagnosis of hidden hearing loss and associated disorders.