Yüksel Mustafa, Taşdemir İlknur, Çiprut Ayça
Department of Speech and Language Therapy, School of Health Sciences, Ankara Medipol University.
Audiology Department, Graduate School of Health Sciences, Hacettepe University, Ankara.
Otol Neurotol. 2022 Dec 1;43(10):e1077-e1084. doi: 10.1097/MAO.0000000000003690. Epub 2022 Sep 13.
Considering the impact of listening effort (LE) on auditory perception, attention, and memory, it is a significant aspect in the daily hearing experiences of cochlear implant (CI) recipients. Reduced spectral and temporal information on an acoustic signal can make listening more difficult; as a result, it is important to understand the relationship between LE and spectral and temporal auditory processing capacities in CI receivers.
STUDY DESIGN, SETTING, AND PATIENTS: This study used spectral ripple discrimination and temporal modulation transfer function to evaluate 20 prelingually deafened and early implanted CI recipients. The speech perception in noise test (primary) and the digit recall task (DRT-secondary) were used to assess LE using the dual-task paradigm. To assess the effects of acoustic hearing, contralateral acoustic hearing thresholds between 125 Hz and 8 kHz with a hearing aid were also acquired. To examine the relationship between the research variables, correlation coefficients were generated. Furthermore, the Mann-Whitney U test was used to compare unilateral and bimodal users.
There was a statistically significant correlation between LE and spectral ripple discrimination (r = 0.56; p = 0.011), 125 Hz (r = 0.51; p = 0.020), 250 Hz (r = 0.48; p = 0.030), 500 Hz (r = 0.45; p = 0.045), 1,000 Hz (r = 0.51; p = 0.023), 2000 Hz (r = 0.48; p = 0.031), and 4,000 Hz (r = 0.48; p = 0.031), whereas no statistically significant correlations were observed between temporal modulation transfer function in four frequencies and LE. There was no statistically significant difference between unilateral and bimodal CI recipients ( p > 0.05).
As a result of the improved signal-to-noise ratio in the auditory environment, CI users with better spectral resolutions and acoustic hearing have a reduced LE. On the other hand, temporal auditory processing, as measured by temporal modulation detection, does not contribute to the LE.
鉴于聆听努力（LE）对听觉感知、注意力和记忆力的影响，它是人工耳蜗（CI）植入者日常听力体验中的一个重要方面。声学信号上频谱和时间信息的减少会使聆听变得更加困难；因此，了解CI接受者中LE与频谱和时间听觉处理能力之间的关系很重要。
研究设计、设置和患者：本研究使用频谱纹波辨别和时间调制传递函数来评估20名语前聋且早期植入CI的接受者。采用噪声中的言语感知测试（主要测试）和数字回忆任务（DRT - 次要测试），使用双任务范式来评估LE。为了评估听觉听力的影响，还获取了使用助听器时125 Hz至8 kHz之间的对侧听觉阈值。为了研究各研究变量之间的关系，生成了相关系数。此外，使用曼 - 惠特尼U检验来比较单侧和双侧使用者。
LE与频谱纹波辨别（r = 0.56；p = 0.011）、125 Hz（r = 0.51；p = 0.020）、250 Hz（r = 0.48；p = 0.030）、500 Hz（r = 0.45；p = 0.045）、1000 Hz（r = 0.51；p = 0.023）、2000 Hz（r = 0.48；p = 0.031）和4000 Hz（r = 0.48；p = 0.031）之间存在统计学上的显著相关性，而在四个频率的时间调制传递函数与LE之间未观察到统计学上的显著相关性。单侧和双侧CI接受者之间没有统计学上的显著差异（p > 0.05）。
由于听觉环境中信噪比的提高，具有更好频谱分辨率和听觉听力的CI使用者的LE降低。另一方面，通过时间调制检测测量的时间听觉处理对LE没有影响。
