Popivanov D, Dimov S, Itsev D
Acta Physiol Pharmacol Bulg. 1978;4(2):54-9.
Quantitative estimation of excitability is performed at present in a pair of stimuli by studying the so-called recovery cycles. Random mixing of the interstimulus intervals and their appropriate grouping (grouped pairs) can provide new information about the course of excitability in time. An experimental setup is described in which by planning of the experiment (BIB-design) the interstimulus intervals are randomized and all components of the evoked potentials (EP) are placed under equal conditions with respect to the influence of the preceding intervals. The effects of the interstimulus intervals simultaneously on different components of visual evoked potentials in cats are estimated by means of dispersion analysis. The results show the existence of a significant effect only on definite amplitudes of the EP (predominantly with great latencies). The interactions of the effects of definite interstimulus intervals are determined, which permits the assumption of an interaction among different components of EP.
目前，通过研究所谓的恢复周期，在一对刺激中对兴奋性进行定量估计。刺激间隔的随机混合及其适当分组（分组对）可以提供有关兴奋性随时间变化过程的新信息。描述了一种实验装置，通过该实验装置的实验规划（BIB设计），刺激间隔被随机化，并且诱发电位（EP）的所有成分在受到先前间隔影响方面处于相同条件下。通过离散分析估计刺激间隔同时对猫视觉诱发电位不同成分的影响。结果表明仅对EP的特定幅度存在显著影响（主要是潜伏期较长的情况）。确定了特定刺激间隔效应之间的相互作用，这使得可以假设EP不同成分之间存在相互作用。
