[The background impulse activity of the fastigial neurons of the rat cerebellum]

Background impulse activity (BIA) of rat fastigial neurons was studied. Mean frequencies of BIA were 6-130 imp/s (45+5.6 imp/s, n = 105). Monomodality and positive asymmetry of interval histograms were typical of a majority of neurons analyzed. About 1/3 of neurons studied have got Gaussian type of interspike interval distribution.