单侧听力损失成人人工耳蜗使用者的言语识别：默认与基于位置的映射程序比较
Speech recognition of adult cochlear implant users with unilateral hearing loss: Default versus place-based mapping procedures.
文献信息
| PMID | 42784524 |
|---|---|
| 原文 | 在 PubMed 查看原文 ↗ |
| 发表日期 | 2026 |
| 作者 | Margaret T Dillon |
| 作者单位 | — |
| 期刊 | Audiology & neuro-otology |
| SCI 分区 | Q3 |
| IF | 1.8 |
| 研究类型 | 临床研究 · 临床 |
| 所属专科 | 耳科 |
中文摘要
引言： 人工耳蜗（CI）的早期言语识别可能部分受到用于分配带通滤波器的映射程序的影响。本简报比较了单侧重度至极重度感音神经性听力损失（UHL）的CI使用者中，采用默认或个体化基于位置映射程序者的言语识别。
方法： 参与者为19名新植入的UHL成人，他们在激活时被随机分配使用默认映射或基于位置的映射进行聆听。默认映射的滤波器为70-8500 Hz。基于位置映射的滤波器经过个体化设置，使低频和中频区域电极的中心频率与耳蜗位置频率相匹配。在激活后1个月和6个月评估言语识别。在单独CI条件下评估单词、音素和元音识别。在双侧条件下评估掩蔽言语识别。
结果： 对于元音识别和掩蔽言语识别（掩蔽声朝向非植入耳），基于位置组在6个月间隔时的表现优于默认组。在CNC单词和音素得分方面，或当掩蔽声与目标同侧或朝向植入耳时的掩蔽言语识别方面，没有显著差异。
结论： 初步结果支持以下观点：患有UHL的成人CI使用者在某些测量中，使用基于位置映射比默认映射获得更好的言语识别，并且差异可能在CI使用数月后显现。
英文摘要
INTRODUCTION: Early speech recognition with a cochlear implant (CI) may be influenced in part by the mapping procedure used to assign the bandpass filters. This brief report compared the speech recognition of CI users with unilateral severe-to-profound sensorineural hearing loss (UHL) who were mapped with either a default or individualized, place-based mapping procedure.
METHODS: Participants were 19 newly implanted adults with UHL who were randomized at activation to listen with either a default map or place-based map. Filters for the default maps were 70-8500 Hz. Filters for the place-based maps were individualized to match the center frequency with the cochlear place frequency for electrodes in the low- and mid-frequency regions. Speech recognition was assessed at 1 and 6 months post-activation. Word, phoneme, and vowel recognition were assessed in the CI-alone condition. Masked speech recognition was assessed in the bilateral condition.
RESULTS: For vowel recognition and masked speech recognition (masker towards the non-implanted ear), performance was better for the place-based group than the default group at the 6-month interval. There were no significant differences in scores for CNC words and phonemes, or masked speech recognition when the masker was co-located with the target or towards the implanted ear.
CONCLUSION: Preliminary results support the idea that adult CI users with UHL experience better speech recognition for some measures with place-based maps than default maps, and that differences may be apparent after several months of CI use.