单侧耳聋人工耳蜗使用者掩蔽空间释放与听力努力的关系。

IF 2.6 2区 医学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Lukas Suveg, Tanvi Thakkar, Emily Burg, Shelly P Godar, Daniel Lee, Ruth Y Litovsky
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引用次数: 0

摘要

目的:研究一组接受人工耳蜗(CI)的单侧耳聋(SSD)患者的言语清晰度和听力努力程度。关于SSD-CI用户如何有效地整合电和声输入以获得空间听力优势的知识有限,这对于导航日常嘈杂的环境非常重要。本研究在静声和噪音环境下检测语音清晰度,同时使用瞳孔测量法测量SSD患者在CI激活前和激活后1年的听力努力。本研究旨在探讨目标语音和干扰语音之间的空间分离是否会导致语音理解能力的提高(掩蔽的空间释放[SRM]),并与瞳孔扩张(PPD)测量的听力努力的空间释放[SRE])减少有关。设计:8名患有成人发病SSD的听者参加了两次访问:(1)ci前和(2)ci后(激活后1年)。目标语由电气和电子工程师句组成,掩蔽语由AzBio句组成。在目标固定在0°方位角的情况下,测量了三种目标-掩蔽器配置的结果:(1)安静,(2)目标/掩蔽器共定位,(3)空间分离(±90°方位角)目标/掩蔽器。聆听努力被量化为任务中相对于基线扩张的峰值比例PPD的变化。参与者在三种听力模式下进行测试:纯声学、纯ci和SSD-CI(双耳)。在第一次访问时,在所有三种目标掩蔽器配置下测试了纯声学模式。在第2次访问时,在安静环境下测试纯声学和纯ci模式,在所有三种目标掩蔽器配置下测试SSD-CI聆听模式。结果:安静模式下的语音清晰度评分在两次访问时均处于上限,而在访问2时,SSD-CI听力模式下的语音清晰度评分处于上限。在安静的情况下,在访问2时,仅ci听力模式的语音清晰度得分明显低于所有其他听力模式。将访视2时的SSD-CI听力与访视1时的预ci声学听力进行比较,同一位置和空间分离配置的语音清晰度得分呈改善趋势(得分较高),但不显著。然而,与仅声学和SSD-CI聆听模式下的同址配置相比,分离组的语音清晰度明显更高,表明SRM。第2次访视时仅ci听力组所诱发的言语诱发PPD显著高于第1次访视时仅声学听力组。然而,同一地点和空间分开的配置在PPD上没有显著差异,可能是由于这一小群参与者之间的差异。SRM和SRE之间存在负相关,表明在目标和掩蔽物空间分离的条件下,语音可理解性的提高与听力努力的显著降低有关。结论:本研究中一小部分SSD-CI患者通过目标语和掩蔽语的空间分离表现出语音清晰度的提高,但PPD测量并未显示空间分离对听力努力的影响。然而,在目标语和掩蔽语的空间分离中,语音清晰度(SRM)的提高与听力努力(SRE)的减少之间存在关联。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Relationship Between Spatial Release From Masking and Listening Effort Among Cochlear Implant Users With Single-Sided Deafness.

Objectives: To examine speech intelligibility and listening effort in a group of patients with single-sided deafness (SSD) who received a cochlear implant (CI). There is limited knowledge on how effectively SSD-CI users can integrate electric and acoustic inputs to obtain spatial hearing benefits that are important for navigating everyday noisy environments. The present study examined speech intelligibility in quiet and noise simultaneously with measuring listening effort using pupillometry in individuals with SSD before, and 1 year after, CI activation. The study was designed to examine whether spatial separation between target and interfering speech leads to improved speech understanding (spatial release from masking [SRM]), and is associated with a decreased effort (spatial release from listening effort [SRE]) measured with pupil dilation (PPD).

Design: Eight listeners with adult-onset SSD participated in two visits: (1) pre-CI and (2) post-CI (1 year after activation). Target speech consisted of Electrical and Electronics Engineers sentences and masker speech consisted of AzBio sentences. Outcomes were measured in three target-masker configurations with the target fixed at 0° azimuth: (1) quiet, (2) co-located target/maskers, and (3) spatially separated (±90° azimuth) target/maskers. Listening effort was quantified as change in peak proportional PPD on the task relative to baseline dilation. Participants were tested in three listening modes: acoustic-only, CI-only, and SSD-CI (both ears). At visit 1, the acoustic-only mode was tested in all three target-masker configurations. At visit 2, the acoustic-only and CI-only modes were tested in quiet, and the SSD-CI listening mode was tested in all three target-masker configurations.

Results: Speech intelligibility scores in quiet were at the ceiling for the acoustic-only mode at both visits, and in the SSD-CI listening mode at visit 2. In quiet, at visit 2, speech intelligibility scores were significantly worse in the CI-only listening modes than in all other listening modes. Comparing SSD-CI listening at visit 2 with pre-CI acoustic-only listening at visit 1, speech intelligibility scores for co-located and spatially separated configurations showed a trend toward improvement (higher scores) that was not significant. However, speech intelligibility was significantly higher in the separated compared with the co-located configuration in acoustic-only and SSD-CI listening modes, indicating SRM. PPD evoked by speech presented in quiet was significantly higher with CI-only listening at visit 2 compared with acoustic-only listening at visit 1. However, there were no significant differences between co-located and spatially separated configurations on PPD, likely due to the variability among this small group of participants. There was a negative correlation between SRM and SRE, indicating that improved speech intelligibility with spatial separation of target and masker is associated with a greater decrease in listening effort on those conditions.

Conclusions: The small group of patients with SSD-CI in the present study demonstrated improved speech intelligibility from spatial separation of target and masking speech, but PPD measures did not reveal the effects of spatial separation on listening effort. However, there was an association between the improvement in speech intelligibility (SRM) and the reduction in listening effort (SRE) from spatial separation of target and masking speech.

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来源期刊
Ear and Hearing
Ear and Hearing 医学-耳鼻喉科学
CiteScore
5.90
自引率
10.80%
发文量
207
审稿时长
6-12 weeks
期刊介绍: From the basic science of hearing and balance disorders to auditory electrophysiology to amplification and the psychological factors of hearing loss, Ear and Hearing covers all aspects of auditory and vestibular disorders. This multidisciplinary journal consolidates the various factors that contribute to identification, remediation, and audiologic and vestibular rehabilitation. It is the one journal that serves the diverse interest of all members of this professional community -- otologists, audiologists, educators, and to those involved in the design, manufacture, and distribution of amplification systems. The original articles published in the journal focus on assessment, diagnosis, and management of auditory and vestibular disorders.
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