Application of phase spectral analysis for 40Hz event related potential detection.
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概要
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40Hz event ralated potential (40Hz-ERP) described by Galambos in 1981, has been considered as the useful method in predicting hearing threshold across the audiometric frequencies especially in adults. But, in some cases, the detection of the responses near threshold is rather difficult, because of its wave morphology. In order to solve these problems, synchrony measure method (SM), one of the phase spectral analysis described by Fridman in 1984, was applied for the automatic detection of 40Hz-ERP. The sensitivity of the SM was demonstrated in 14 normal adults 40Hz-ERP responses with different intensities (50, 30, 20, 10, 0, and -10dBSL) of ipsilateral stimuli, SM, especially component synchrony measure of 40Hz, is useful for 40Hz-ERP detection in normal adults.
- 日本聴覚医学会の論文
日本聴覚医学会 | 論文
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