Pinto Fernanda Rodrigues, Matas Carla Gentile
Fundação de Amparo a Pesquisa, Estado de São Paulo.
Braz J Otorhinolaryngol. 2007 Jul-Aug;73(4):513-22. doi: 10.1016/s1808-8694(15)30103-8.
Studies have reported compatibility between hearing and electrophysiological thresholds in the auditory brainstem response (ABR) with tone burst stimuli.
to verify waves I, III, V and their latency times for tone bursts at 500, 1000, 2000 and 4000 Hz and at 80 dB HL, and to compare tone burst electrophysiological thresholds with those obtained from audiological and psychoacoustic evaluations.
audiological, psychoacoustic and electrophysiological evaluations of 40 male and female normal hearing individuals aged between 18 and 40 years were undertaken.
only wave V was visualized at 80 dB HL and its latency values decreased with increased frequencies in both genders. At 1000, 2000 and 4000 Hz male subjects presented higher electrophysiological thresholds values than females at all frequencies. At 500, 1000 and 2000 Hz, electrophysiological, hearing, and psychoacoustic thresholds were statistically different in both genders.
although ABR with tone burst stimulus is clinically applicable, further research is needed to standardize test techniques and results.
研究报告了在短纯音刺激下听觉脑干反应(ABR)中听力阈值与电生理阈值之间的相关性。
验证500、1000、2000和4000赫兹以及80分贝听力级(dB HL)的短纯音刺激下I、III、V波及其潜伏期,并将短纯音电生理阈值与听力和心理声学评估获得的阈值进行比较。
对40名年龄在18至40岁之间的听力正常的男性和女性进行了听力、心理声学和电生理评估。
在80 dB HL时仅可见V波,且其潜伏期值在两性中均随频率增加而降低。在1000、2000和4000赫兹时,男性受试者在所有频率下的电生理阈值均高于女性。在500、1000和2000赫兹时,两性的电生理、听力和心理声学阈值在统计学上存在差异。
尽管短纯音刺激的ABR在临床上适用,但仍需要进一步研究以规范测试技术和结果。