Evaluation of Listening Effort With Pupillometry in Cochlear Implant Users
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 16
- 试验地点
- 2
- 主要终点
- Latency of peak of pupil dilatation (ms)
研究概览
简要总结
Listening with a cochlear implant remains difficult and most listeners will report high levels of listening effort.The present study is a "pilot" aiming to evaluate listening effort for cochlear implant users. The listening effort is measured with pupillometry, by monitoring the variations of pupil size in response to different stimuli. The size of the pupil is known to increase with the listening effort. The listening effort is evaluated in two different situation: speech perception in quiet and speech perception in noise. The pupillometry measures will be compared for the two listening conditions. Moreover, the study will evaluate the relationship between objective (pupil dilatation) and subjective measures (auto evaluation) of listening effort, and between speech comprehension, cognitive abilities and listening effort.
详细描述
Nowadays, cochlear implants (CI) are successfully used to rehabilitate severe to profound sensorineural hearing loss. Most CI users can understand speech in quiet, but comprehension scores drop in the presence of background noise and in adverse conditions. Listening with a cochlear implant remains very demanding and most listeners report high levels of listening effort. The aim of current auditory prostheses and cochlear implants is not only restore speech understanding, but also to restore all the cognitive functions that are associated to a listening task (e.g., memory, executive functions, attention). Evaluating the listening effort is a new way to assess the efficiency of the hearing aids or cochlear implants. The listening effort indicates the amount of cognitive resources that are dedicated to a listening task; it evaluates also the cognitive resources remaining available for the other cognitive functions. The present study is a "pilot" aiming to evaluate listening effort for cochlear implant users. The listening effort is measured with pupillometry, i. e. by measuring the pupil dilatation in response to different stimuli. The size of the pupil is known to increase with the listening effort. The listening effort is evaluated in two different situation: speech perception in quiet and speech perception in noise. Speech comprehension is measured for the two listening conditions and cognitive functions are assessed by the MOCA (Montreal Cognitive Assessment). In addition, the subjects are asked to subjectively evaluate the amount of listening effort they used in each listening situation. The pupillometry measures will be compared for the two listening conditions. Moreover, the study will evaluate the relationship between objective (pupil dilatation) and subjective measures (self evaluation) of listening effort, and between speech comprehension, cognitive abilities and listening effort.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •informed consent
- •Native French speaker or fluent French speaker
- •Patient already fitted with one or two cochlear implants Oticon Medical
- •Can correctly identify at least 10 % of the words in monosyllabic Lafon lists in quiet
- •Normal or corrected to normal vision
排除标准
- •vulnerable patients (kids, pregnant women, persons under guardianship)
- •No Social security affiliation
- •blindness
研究组 & 干预措施
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: MOCA (Behavioral)
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: Pupillometry (Behavioral)
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: Evaluation of speech comprehension in quiet (Behavioral)
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: Evaluation of speech comprehension in noise (Behavioral)
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: auto evaluation of listening effort in quiet (Behavioral)
Pupillometry
Measure of pupil dilatation while listening to speech (monosyllabic words) in quiet and in noise.
Evaluation of speech comprehension in quiet
Evaluation of speech comprehension in noise
Measure of cognitive functions with the MOCA (Montreal Cognitive Assessment)
Auto evaluation of listening effort in quiet
Auto evaluation of listening effort in noise
干预措施: auto evaluation of listening effort in noise (Behavioral)
结局指标
主要结局
Latency of peak of pupil dilatation (ms)
时间窗: 1 hour
The listening effort while listening to speech stimuli is estimated by measuring the pupil size relative to a baseline. The peak is defined as the point in time where the maximum of pupil dilatation occurs. The latency of the peak of dilatation is compared between quiet and noisy conditions (+ 10 SNR: signal to noise ratio).
Amplitude of peak of pupil dilatation
时间窗: 1 hour
The listening effort while listening to speech stimuli is estimated by measuring the pupil size relative to a baseline. The peak is defined as the point in time where the maximum of pupil dilatation occurs. The amplitude of the peak of dilatation is compared between quiet and noisy conditions (+ 10 SNR: signal to noise ratio).
Pupil dilatation (mm)
时间窗: 1 hour
The listening effort while listening to speech stimuli is estimated by measuring the pupil size relative to a baseline. Measures of pupil dilatation are compared between quiet and noisy conditions (+ 10 SNR: signal to noise ratio).
次要结局
- VAS quiet(1 min)
- VAS noise(1 min)
- Speech intelligibility in quiet(30 mins simultaneously to pupillometry measures)
- Speech intelligibility in noise(30 mins simultaneously to pupillometry measures)
- MOCA (Montreal Cognitive assessment)(15 mins)