Dynamics of the background impulse activity of neurons of the lateral vestibular nucleus in the norm and under vibrational influence

The background impulse activity (BIA) generated by neurons of the right lateral vestibular nucleus (LVN) of rats in the norm and under conditions of long-lasting general vibrational stimulation was subjected to computer analysis. Statistically significant changes in intragroup values of the mean BIA frequency were observed after 5 and 10 days with 2-h-long sessions of vibrational stimulation. Significant shifts in the distributions of LVN neurons by the level of regularity and dynamic types of BIA were observed 10 and 15 days with vibrational influences. Trends toward return of the intragroup mean value of the BIA frequency to the initial level were noticeable at the end of the stimulation period (15 days). Neirofiziologiya/Neurophysiology, Vol. 37, Nos. 5/6, pp. 424–431, September–December, 2005.