Auditory Steady-State Response Audiometry
Auditory Steady-State Response Audiometry
复制标题
听觉稳态响应测听
DOI：
10.5631/jibirin.101.159
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
M. Aoyagi
中科院分区：
文献类型：
--
作者：
M. Aoyagi
本文介绍了听觉稳态反应（ASSR）的历史、刺激音、检测技术、源发生器和临床应用。ASSR在客观测听中最重要的好处是，如果使用正弦幅度调制音调作为音调刺激，它可以以频率特定的方式在不同的测听频率下提供准确的听力评估。功率谱分析和相位相干快速傅里叶变换是有用的自动检测阈值，因为正弦响应波形结构。由于ASSR在不同觉醒状态下的检测灵敏度不同，因此40-Hz ASSR适用于清醒成人，80-Hz ASSR适用于睡眠儿童。关于这些反应的来源，40-Hz ASSR被认为是中潜伏期反应的稳态版本，80-Hz ASSR被认为是听觉脑干反应（ABR）的稳态版本。骨传导刺激在传导性听力损失的评估中也是有用的，尽管在60 dB或更高的强度水平下反应不可靠。使用80 Hz ASSR阈值预测500 Hz或更低听力水平的困难可以通过听觉滤波来解释。它的优点是可以比ABR多频同时刺激技术更快地预测双耳4种不同频率的阈值。此外，对点击的ASSR可以提供一种快速筛查技术。最后，在评估阈上听力时，使用ASSR扫描其强度（扫描技术）或实际语音声音可能会有所帮助。在这方面，ASSR可能有助于幼儿助听器的客观验配。
This study describes the history, stimulus tones, detection techniques, source generators and clinical applications of auditory steady-state responses (ASSR). The most important benefit of ASSR in objective audiometry is that it can provide an accurate assessment of hearing at different audiometric frequencies in a frequency specific manner, if sinusoidally amplitude-modulated tones are used as tonal stimuli. Power spectrum analysis and phase coherence using fast Fourier transform are useful for the automatic detection of threshold because of the sinusoidal response waveform configuration. Because the detectability of ASSR changes under different arousal states, 40-Hz ASSR is suitable for waking adults and 80-Hz ASSR for sleeping children in the assessment of hearing. Regarding the sources of those responses, 40-Hz ASSR is considered the steady-state version of the middle latency response and 80-Hz ASSR is considered the steady-state version of auditory brainstem response (ABR). Bone conduction stimuli are also useful in the assessment of conductive hearing loss, though the responses are not reliable at the intensity level of 60dB or higher. The difficulty in predicting a hearing level of 500Hz or less using the 80-Hz ASSR threshold can be explained by auditory filter. Its advantage is that the thresholds at 4 different frequencies in both ears can be predicted more rapidly than ABR using the multiple simultaneous stimulation technique. In addition, the ASSR to clicks may provide a rapid screening technique. Finally, it may be helpful in assessing suprathreshold hearing to use ASSRs to sounds that sweep their intensity (sweep technique) or actual speech sounds. In this respect, ASSRs may contribute to the objective fitting of hearing aids in young children.