Bibikov N G, Dymov A B
Biofizika. 2007 Nov-Dec;52(6):1073-86.
The analysis of statistical characteristics of spontaneous activity (distribution of interpulse intervals, hazard function, autocorrelation function, autocorrelation function for a process with shifted intervals, interdependence between adjoining intervals) for 123 units located in the cochlear nucleus of the frog has been performed. In the majority of cells, this activity was distinct from the poissonic process, and in some cases firing periodicity was noticed. Besides, deviations of the spontaneous activity from the renewal process were usually observed. A reliable positive correlation of interpulse intervals was typical for the majority of the units, though in some cases a negative correlation of short adjoining intervals was revealed. The data indicate the occurrence of effects of memory in the activity of single units of the acoustical system.
对位于青蛙耳蜗核的123个神经元的自发活动的统计特征(脉冲间隔分布、风险函数、自相关函数、间隔移位过程的自相关函数、相邻间隔之间的相互依赖性)进行了分析。在大多数细胞中,这种活动不同于泊松过程,并且在某些情况下观察到了放电周期性。此外,通常还观察到自发活动与更新过程的偏差。大多数神经元的脉冲间隔存在可靠的正相关,不过在某些情况下,短相邻间隔之间存在负相关。数据表明听觉系统单个神经元的活动中存在记忆效应。