he rational is simply to fit a mathematical model to the

ISI distribution that includes a component to model the

refractory period. If a neuron is well isolated, it must

exhibit some refractory period. If instead, it is multi-

unit, then it will exhibit instead something similar to

a poisson process in which there is no refractory period,

or at least large probability of inter-spike intervals

at the shortest intervals.-he rational is simply to fit a mathematical model to the

ISI distribution that includes a component to model the

refractory period.　If a neuron is well isolated, it must　　　　　　　

exhibit some refractory period.　If instead, it is multi-

unit, then it will exhibit instead something similar to　

a poisson process in which there is no refractory period,

or at least large probability of inter-spike intervals　

at the shortest intervals.