Combining current focusing and steering in a cochlear implant processing strategy.
Combining current focusing and steering in a cochlear implant processing strategy.
复制标题
在耳蜗植入处理策略中结合电流聚焦和转向。
DOI：
10.1080/14992027.2020.1822551
复制
发表时间：
2021-03
影响因子：
2.7
通讯作者：
Pulling K
中科院分区：
文献类型：
--
作者：
Luo X;Wu CC;Pulling K
目的：评价电流聚焦和引导相结合的语音识别技术在人工耳蜗术(CI)噪声环境下的效果。采用两个电流控制范围的聚焦部分三极(PTP)模式，实现了电流聚焦与控制相结合。将两种PTP控制策略与无电流聚焦或转向的单极(MP)策略和仅有电流聚焦的PTP策略在噪声测试中进行了比较。这些策略只是在刺激模式上有所不同。10名语言失聪的成年CI使用者参与了这项研究。与MP策略相比，两种PTP控制策略都产生了显著更好的言语接收阈值，而PTP策略则没有。基线MP表现较好的受试者在PTP指导策略下的改善较少。所有四种策略都是实验性的低率策略，没有一种策略的表现优于受试者的临床策略。在噪声环境下，PTP控制策略的语音识别效果好于MP策略，但PTP模式电流控制对频谱分辨率的影响还有待检验。
To evaluate the benefit of combined current focusing and steering to speech recognition in noise with cochlear implants (CIs). Combined current focusing and steering was implemented using focused partial tripolar (pTP) mode with two current steering ranges. The two pTPsteering strategies were compared to a monopolar (MP) strategy without current focusing or steering and a pTP strategy with only current focusing using the Hearing in Noise Test. The strategies differed only in stimulation mode. Ten post-lingually deafened adult CI users participated in this study. Compared to the MP strategy, both pTPsteering strategies produced significantly better speech reception thresholds, while the pTP strategy did not. Subjects with better baseline MP performance had less improvements with the pTPsteering strategies. All four strategies were experimental low-rate strategies and none of them outperformed subjects’ clinical strategies. Speech recognition in noise was better with the pTPsteering strategies than with the MP strategy, but the effect of pTP-mode current steering on spectral resolution is yet to be tested.