Effects of Amplification and Hearing Aid Experience on the Contribution of Specific Frequency Bands to Loudness.
Effects of Amplification and Hearing Aid Experience on the Contribution of Specific Frequency Bands to Loudness.
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放大和助听器体验对特定频段对响度贡献的影响。
DOI：
10.1097/aud.0000000000000603
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发表时间：
2019
期刊：
影响因子：
3.7
通讯作者：
Jesteadt,Walt
中科院分区：
文献类型：
--
作者：
Thrailkill,KatieM;Brennan,MarcA;Jesteadt,Walt
目的：本研究的主要目的是描述助听器放大对感音神经性听力损失（SNHL）成年听众特定频带对整体响度的贡献的影响。与SNHL的听众的结果与听力正常（NH）的听众的结果进行了比较，以评估放大是否恢复了宽带声音的响度的正常感知。本研究的第二个目的是确定新助听器使用者的响度感知是否在使用助听器的最初几个月内变得更接近正常。据推测，放大将导致高频段的贡献最大的感知响度，这种效果可能会减少新的助听器用户适应amplification.Design：在实验1中，8个成年听众与SNHL完成了两个间隔强迫选择响度任务在unaided和aided条件。对照组7名NH患者仅在无辅助条件下完成任务。刺激由七个加总的噪声带组成，其水平在呈现之间独立调整。在一次试验中，两个刺激被呈现出来，听众决定了更响亮的一个。计算每次试验中给定噪声频带的电平差异与听众响应之间的相关性。所得到的测量被称为感知权重，因为它提供了给定频率区域对整体响度的相对贡献的估计。在实验2中，6个新的助听器使用者重复相同的程序上2个会议分开12 weeks.Results：结果与SNHL的听众在实验1和2相似。在无辅助条件下，感知权重最大的低频带。在辅助条件下，感知权重是最大的高频带。平均而言，与SNHL为高频段的听众的辅助感知权重大于与NH的听众的独立权重。在实验2中，助听器的经验并没有显着的影响知觉weights.Conclusions：高频率似乎占主导地位的响度知觉与SNHL使用助听器的听众，因为他们在与NH的听众。然而，结果表明，放大导致高频有一个更大的贡献，整体响度相比，与NH的听众。首次使用助听器的受试者经过一段时间的适应后，高频对响度的贡献没有改变。
Objectives:The primary aim of this study is to describe the effect of hearing aid amplification on the contribution of specific frequency bands to overall loudness in adult listeners with sensorineural hearing loss (SNHL). Results for listeners with SNHL were compared with results for listeners with normal hearing (NH) to evaluate whether amplification restores the normal perception of loudness for broadband sound. A secondary aim of this study is to determine whether the loudness perception of new hearing aid users becomes closer to normal over the first few months of hearing aid use. It was hypothesized that amplification would cause the high-frequency bands to contribute most to the perception of loudness and that this effect might decrease as new hearing aid users adapt to amplification.Design:In experiment 1, 8 adult listeners with SNHL completed a two-interval forced-choice loudness task in unaided and aided conditions. A control group of 7 listeners with NH completed the task in the unaided condition only. Stimuli were composed of seven summed noise bands whose levels were independently adjusted between presentations. During a trial, two stimuli were presented, and listeners determined the louder one. The correlation between the difference in levels for a given noise band on every trial and the listener’s response was calculated. The resulting measure is termed the perceptual weight because it provides an estimate of the relative contribution of a given frequency region to overall loudness. In experiment 2, a separate group of 6 new hearing aid users repeated identical procedures on 2 sessions separated by 12 weeks.Results:Results for listeners with SNHL were similar in experiments 1 and 2. In the unaided condition, perceptual weights were greatest for the low-frequency bands. In the aided condition, perceptual weights were greatest for the high-frequency bands. On average, the aided perceptual weights for listeners with SNHL for high-frequency bands were greater than the unaided weights for listeners with NH. In experiment 2, hearing aid experience did not have a significant effect on perceptual weights.Conclusions:The high frequencies seem to dominate loudness perception in listeners with SNHL using hearing aids as they do in listeners with NH. However, the results suggest that amplification causes high frequencies to have a larger contribution to overall loudness compared with listeners with NH. The contribution of the high frequencies to loudness did not change after an acclimatization period for the first-time hearing aid users.
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DOI：
10.1039/jr9580003574
发表时间：
1958-01-01
期刊：
JOURNAL OF THE CHEMICAL SOCIETY
影响因子：
--
作者：
BUNTON, CA;LLEWELLYN, DR;VERNON, CA
通讯作者：
VERNON, CA
影响因子：
15
作者：
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通讯作者：
SAMPSON, EJ
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影响因子：
15
作者：
S. Milstien;T. Fife
通讯作者：
T. Fife
DOI：
--
发表时间：
1963
期刊：
影响因子：
--
作者：
D. Dittmer;O. Ramsay;R. E. Spalding
通讯作者：
R. E. Spalding
WR-2721 和顺铂的 I 期试验。
DOI：
10.1016/0360-3016(84)90549-2
发表时间：
1984
期刊：
International journal of radiation oncology, biology, physics
影响因子：
--
作者：
Glover,D;Glick,JH;Weiler,C;Yuhas,J;Kligerman,MM
通讯作者：
Kligerman,MM