輕度雙側聽損兒童噪音中語音辨識與時頻調變處理關係之證據：一項功能性近紅外線光譜研究

// Evidence for Relationship Between Speech Perception in Noise and Spectrotemporal Modulation Processing in Children With Mild Bilateral Hearing Loss: A Functional Near-Infrared Spectroscopy Study

11名輕度雙側聽損兒童(CHL，未/有助聽器)與28名同齡正常兒，採空間去遮罩語音任務（70%正確率SNR）及fNIRS量測腦反應｜行為結果：空間分離效益相近，助聽器未見明顯行為增益｜腦影像顯示配戴助聽器的CHL在顳葉對時間（幅度）與頻譜提示反應增加，且與語音噪訊辨識改善相關，顯示助聽器能提升超閾（suprathreshold）神經敏感度，具臨床評估與應用價值。

// This study tested whether suprathreshold neural processing of temporal and spectral cues predicts speech‑in‑noise perception and is altered by hearing aids in children with mild bilateral hearing loss (CHL). Using a spatial release‑from‑masking speech task (SNR for 70% accuracy) and fNIRS of bilateral frontotemporal cortex responses to amplitude‑ and spectral‑modulated noise, the authors compared 11 CHL (unaided and aided) with 28 age‑matched normal‑hearing children. Behaviorally, CHL and controls showed similar benefit from spatial separation and aiding did not change that benefit, but fNIRS showed increased temporal‑ and spectral‑modulation responses in the temporal cortex of aided CHL versus unaided CHL and controls. Those cortical changes correlated with better speech‑in‑noise performance in CHL, suggesting hearing aids enhance suprathreshold neural sensitivity to speech cues even when behavioral gains are subtle.

Published 2026年9月21日