年長聽損成人聽者在高呈現聲壓級下聆聽努力增加及語音辨識下降

// Increased listening effort and decreased speech perception at high presentation sound levels in older hearing-impaired adult listeners

高聲量導致語音辨識「回滾」；噪音中年長(>50)與輕中度聽損者影響尤甚｜瞳孔測量顯示聆聽努力隨音量上升且受年齡與聽損放大，年長聽損者影響最大｜意涵：對年長/聽損者過度放大高音量恐降低理解並增加負擔，應納入助聽治療考量

// We tested word identification across multiple sound levels in quiet and noise in younger (≤25) and older (>50) listeners with normal hearing or mild-to-moderate hearing loss, and used pupillometry to measure listening effort. Behavioral results showed "rollover" (worse speech perception at higher levels) for both temporal and non-temporal contrasts, particularly in older normal-hearing and older hearing-impaired listeners when speech was in background noise. Pupillometry revealed that listening effort increased with sound level mainly in noise and was amplified by age and hearing loss, with the largest effect in older listeners with hearing loss. These findings imply that amplifying high sound levels can harm speech perception and increase effort in older/hearing-impaired listeners, affecting treatment strategies for age-related hearing loss.

Published 2026年9月18日