Study of Acoustically Short Latency Negative Response in Tone Burst Auditory Brainstem Responses
- VernacularTitle:短纯音诱发的听性脑干反应测试中声诱发短潜伏期负反应研究
- Author:
Yingying SHANG
;
Daofeng NI
;
Chunxiao XU
;
Fengrong LI
;
Qijuan ZOU
;
Zhiyong ZHANG
;
Cuixia ZHAO
;
Zhiqiang GAO
;
Jian WANG
;
Jing GUAN
- Publication Type:Journal Article
- Keywords:
Auditory brain stem response;
Tone burst;
Acoustically short latency negative response
- From:
Journal of Audiology and Speech Pathology
2009;17(4):340-343
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the characteristic of acoustically short latency negative response (ASNR) in auditory brainstem response (ABR) evoked by tone burst in children with hearing loss. Methods ABRs to click and tone burst were recorded from 0～6 years old children with hearing loss using SmartEP auditory evoked potential system. The threshold and latency was analyzed if ASNR was recorded. Results Among all the 80 ears tested, ASNR were recorded in 7 ears (8.75%) when using click, and in 40 ears (50%) when using tone burst. ASNR was most frequently evoked by 1 kHz tone burst (in 37 ears), and 2 kHz (in 25 ears) was the second. Among the ears with ASNR, the lowest threshold of ABR wave V was 65 dB nHL. The lowest threshold of ASNR was 80dB nHL. The latencies of ASNR for 0.5,1,2 and 4 kHz tone burst was 6～8, 5～7,3～5 and 3～4 ms, respectively. The latency decreased along with the increase of intensity. Conclusion ASNR can be recorded while recording tone-burst ABR, but it has no effect in predicting hearing level using the wave V threshold of tone-burst ABR.
