Griffiths S K, Chambers R D, Bilger R C
University of Illinois, Urbana-Champaign, Illinois 61820.
Ear Hear. 1989 Oct;10(5):299-303. doi: 10.1097/00003446-198910000-00005.
If the interpeak intervals in the auditory brain stem response (ABR) are assumed to be statistically independent variables that represent the neural transmission time between loci, then the absolute latency of an ABR wave is the sum of the transmission times between successive loci. Consequently, the correlations between the absolute latencies of the ABR waves would be part-whole correlations whose expected values are appreciably different from r = 0. We derived the expected values of the correlations between the latencies of the ABR waves on the assumption that their latencies are the sum of independent elements (transmission times) and found them to be 0.707, 0.577, and 0.816 for I.III, I.V, and III.V, respectively. In addition, the expected values of the correlations between the latencies of the ABR waves assuming that the absolute wave latencies themselves are independent variables (e.g., rI.III = 0) were derived. Several of the correlations among interpeak and between the interpeak and absolute latencies were demonstrated to be appreciably different from r = 0. It would appear that it is more reasonable to assume that the elements (transmission times) rather than the component latencies are the variables of choice for statistical analysis of ABR data.
如果假设听性脑干反应（ABR）中的峰间间期是代表不同位点间神经传导时间的统计独立变量，那么ABR波的绝对潜伏期就是连续位点间传导时间的总和。因此，ABR波绝对潜伏期之间的相关性将是部分与整体的相关性，其期望值与r = 0明显不同。我们在假设ABR波潜伏期是独立元素（传导时间）总和的基础上，推导了ABR波潜伏期之间相关性的期望值，发现I与III、I与V、III与V的相关性期望值分别为0.707、0.577和0.816。此外，还推导了假设绝对波潜伏期本身是独立变量（例如，rI.III = 0）时ABR波潜伏期之间相关性的期望值。峰间间期之间以及峰间间期与绝对潜伏期之间的几种相关性被证明与r = 0明显不同。似乎更合理的假设是，对于ABR数据的统计分析，元素（传导时间）而非成分潜伏期是首选变量。
