Spongberg T, Decker T N
Department of Special Education & Communication Disorders, University of Nebraska-Lincoln.
Scand Audiol. 1990;19(2):73-7. doi: 10.3109/01050399009070756.
The purpose of the present study was to determine the relationship for latency and amplitude between exogenous auditory potentials arising at the level of cranial nerve VIII and continuing through the level of the cortex and the auditory P3 endogenous potential. Thirty-four normal hearing adults participated in the study. Binaural ABR, MLR, LCR, and P3 recordings were obtained using 2 kHz tone bursts as the stimulus. Relationships between peak latencies and amplitudes from the early, middle, and late potentials were analyzed using Pearson Product-Moment correlation procedures and multiple regression analyses. Results indicated no significant positive relationships for latency or amplitude between early, middle, or late exogenous potentials and the endogenous P3 potential. Pa of the MLR and P3 demonstrated significant latency/amplitude trading functions. The present data support the hypothesis that P3 latency and amplitude are not related to the latencies and amplitudes of the exogenous responses.
本研究的目的是确定起源于第八对脑神经水平并延续至皮质水平的外源性听觉电位与听觉P3内源性电位之间在潜伏期和波幅上的关系。34名听力正常的成年人参与了该研究。使用2千赫短纯音作为刺激，获得双耳听觉脑干反应（ABR）、中潜伏期反应（MLR）、长潜伏期反应（LCR）和P3记录。使用Pearson积差相关程序和多元回归分析来分析早期、中期和晚期电位的峰潜伏期和波幅之间的关系。结果表明，早期、中期或晚期外源性电位与内源性P3电位在潜伏期或波幅上均无显著正相关关系。MLR和P3的Pa显示出显著的潜伏期/波幅交换功能。目前的数据支持以下假设，即P3潜伏期和波幅与外源性反应的潜伏期和波幅无关。
