雙側人工耳蝸使用者單耳與雙耳頻譜解析度之關係

// The Relationship Between Monaural and Binaural Spectral Resolution in Bilateral Cochlear Implant Users

研究以SMRT（頻譜—時域調變波紋測試，評估頻譜解析能力）檢測20名普通話成人雙耳人工耳蝸使用者（同時植入10人、序列植入10人），量測單耳/雙耳頻譜解析、雙耳加總效應及兩耳不對稱性｜結果顯示同時與序列植入者在單耳或雙耳SMRT成績無顯著差異；兩耳表現差異越大，雙耳加總效益越低，雙耳表現主要受較差一耳的頻譜解析力決定，且右耳較佳時有額外益處，提示臨床應重視兩耳不對稱以提升雙耳效益。

// They tested 20 Mandarin-speaking adult bilateral cochlear implant users (10 simultaneous, 10 sequential) with the Spectral-temporally Modulated Ripple Test (SMRT) to measure monaural and binaural spectral resolution, binaural summation, and interaural asymmetry. There was no significant difference in monaural or binaural SMRT scores between simultaneous and sequential implant groups. Larger interaural performance asymmetry strongly predicted reduced binaural summation, and binaural performance was largely determined by the poorer ear’s spectral resolution with additional benefit when the right implant had better resolution.

Published 2026年8月31日