Jonas Brännström K, von Lochow Heike, Lyberg-Åhlander Viveka, Sahlén Birgitta
a Logopedics, Phoniatrics and Audiology, Department of Clinical Sciences in Lund , Lund University , Lund , Sweden.
Logoped Phoniatr Vocol. 2019 Jul;44(2):87-94. doi: 10.1080/14015439.2018.1504984. Epub 2018 Sep 11.
This study examines the influence of voice quality and multi-talker babble noise on processing and storage performance in a working memory task performed by children using cochlear implants (CI) and/or hearing aids (HA).
Twenty-three children with a hearing impairment using CI and/or HA participated. Age range was between 6 and 13 years. The Competing Language Processing Task (CLPT) was assessed in three listening conditions; a typical voice presented in quiet, a dysphonic voice in quiet, and a typical voice in multi-talker babble noise (signal-to-noise ratio +10 dB). Being a dual task, the CLPT consists of a sentence processing component and a recall component. The recall component constitutes the measure of working memory capacity (WMC). Higher-level executive function was assessed using Elithorn's mazes.
The results showed that the dysphonic voice did not affect performance in the processing component or performance in the recall component. Multi-talker babble noise decreased performance in the recall component but not in the processing component. Higher-level executive function was not significantly related to performance in any component.
The findings indicate that multi-talker babble noise, but not a dysphonic voice quality, seems to put strain on WMC in children using CI and/or HA.
本研究探讨语音质量和多说话者嘈杂噪声对使用人工耳蜗（CI）和/或助听器（HA）的儿童在工作记忆任务中的处理和存储性能的影响。
23名使用CI和/或HA的听力障碍儿童参与了研究。年龄范围在6至13岁之间。在三种聆听条件下评估竞争性语言处理任务（CLPT）；安静环境中呈现的典型语音、安静环境中呈现的发声困难语音以及多说话者嘈杂噪声环境中呈现的典型语音（信噪比+10 dB）。作为一项双重任务，CLPT由一个句子处理部分和一个回忆部分组成。回忆部分构成工作记忆容量（WMC）的度量。使用埃利索恩迷宫评估高级执行功能。
结果表明，发声困难语音并未影响处理部分的表现或回忆部分的表现。多说话者嘈杂噪声降低了回忆部分的表现，但未影响处理部分的表现。高级执行功能与任何部分的表现均无显著相关性。
研究结果表明，多说话者嘈杂噪声而非发声困难的语音质量似乎会给使用CI和/或HA的儿童的WMC带来压力。
