听力正常青年ASSR、Tone-pip ABR与纯音听阈结果分析

目的:探讨多频听觉稳态诱发反应,短音诱发听性脑干反应的频率特性及其反应阈、主观听阈与纯音听阈的关系。方法:对正常听力青年28名(56耳)分别采用多频听觉稳态诱发反应、短纯音诱发听性脑干反应及纯音测听记录三者0.5kHz、1kHz、2kHz、4kHz反应阈及主观听阈,记录数据通过SPSS11.5软件进行分析。结果:多频听觉稳态诱发反应阈除0.5kHz处有显著性差异(P<0.001)外,1、2、4kHz 3个频率均无显著性差异(P>0.05)。多频听觉稳态诱发反应阈与纯音听阈差值18～27dB。短音诱发听性脑干反应阈和主观听阈除0.5、1kHz处有显著性差异(P<0.001)外,2、4kHz均无显著性差异(P>0.05)。短音诱发听性脑干反应阈与纯音听阈差值为15～24dB,短音诱发听性脑干反应阈与主观听阈差值为14～20dBnHL。结论:多频听觉稳态诱发反应与短音诱发听性脑干反应均具有频率特异性,两者与纯音听阈间均有较好相关性,特别是在2、4kHz部分。

Comparison of Auditory Steady-state Response, Tone-pip Auditory Brainstem Response and Pure Tone Audiometry Threshold in Normal-hearing Adults

Objective：To explore frequentcy specificity and the correlation of auditory steady-state response （ASSR）, tone-pip elicited auditory brainstem response（tone-pip ABR） and pure tone audiometry（PTA）. Methods： ASSR, tonepip ABR,PTA were recorded from 28 normal hearing adults（56 ears）. Responses threshold of ASSR, tone-pip ABR, PTA were compared with each other in 0. 5kHz, 1 kHz, 2kHz, 4kHz to get the correlation factors and regression formulation statistical analysis was made by SPSS11.5. Results：There are significant difference at 0.5kHz for ASSR, at other three frequencies, no significant differences. ASSR thresholds are 18～27dB higher than the PTA thresholds at correspond frequencies. There are significant difference at 0. 5, l kHz for tone-pip ABR, at other two frequencies, no significant differences. The response thresholds and behavioral thresholds of tone-pip ABR are higher 14～24dB or 13～20dB than at other three frequencies, no significant differences respectivly. Conclusion： ASSR and tone-pip ABR are frequency specific and can be used to predict the pure tone audiogram. The study illustrate that the correlation of the responses threshold of ASSR, tone-pip ABR, PTA are strong, especially in 2,4kHz.