Lachapelle P
Can J Ophthalmol. 1985 Oct;20(6):211-5.
Previous investigators have suggested using a recording bandwidth of 100 to 1000 Hz to selectively amplify the oscillatory potentials (OPs) of the electroretinogram (ERG). The data reported in this article do not support this recommendation. Comparisons between the usual broadband (1- to 1000-Hz) ERG and that recorded with a narrower bandwidth (100 to 1000 Hz) indicate that the two ERGs have the same temporal features. The only differences noted are in amplitude and configuration, and these filter-induced modifications are predictable. The 100- to 1000-Hz ERG thus appears more like a low-voltage version of the 1- to 1000-Hz one than a recording with selective amplification of some hidden high-frequency subcomponents. A novel interpretation of ERG-wave synthesis that could account for these findings is suggested.
先前的研究人员建议使用100至1000赫兹的记录带宽来选择性放大视网膜电图（ERG）的振荡电位（OPs）。本文报告的数据不支持这一建议。常规宽带（1至1000赫兹）ERG与使用较窄带宽（100至1000赫兹）记录的ERG之间的比较表明，这两种ERG具有相同的时间特征。唯一观察到的差异在于幅度和波形，并且这些由滤波器引起的变化是可预测的。因此，100至1000赫兹的ERG看起来更像是1至1000赫兹ERG的低电压版本，而不是对某些隐藏高频子成分进行选择性放大的记录。本文提出了一种可以解释这些发现的ERG波合成的新解释。
