Background activity of neurons of the supraoptic hypothalamic nucleus in rats under conditions of vibrational stimulation and electromagnetic extrahigh-frequency irradiation |
| |
Authors: | G Yu Grigoryan S M Minasyan S G Saakyan |
| |
Institution: | (1) Yerevan State University, Yerevan, Republic of Armenia |
| |
Abstract: | We analyzed background impulse activity of neurons of the supraoptic nucleus of the rat hypothalamus in the course of 15-day-long
isolated action of generalized vibrational stimulation and combination of such stimulation with irradiation of the animal’s
head with low-intensity extrahigh-frequency (EHF, millimeter-range) electromagmetic waves. The distributions of the neurons
by the level of regularity and dynamics of spike trains, separate frequency ranges of impulsation, and pattern of interspike
interval (ISI) histograms were estimated. We also calculated the mean frequency of discharges and coefficient of variation
of ISIs. A trend toward decreases in the deviations of some parameters of neuronal spike activity generated by supraoptic
neurons, which were evident within early time intervals of isolated action of vibration (5 to 10 days), was observed under
the influence of EHF electromagnetic irradiation; thus, the latter factor probably exerts a sedative effect.
Neirofiziologiya/Neurophysiology, Vol. 39, No. 6, pp. 433–442, November–December, 2007. |
| |
Keywords: | supraoptic nucleus of the hypothalamus background impulse activity vibration extrahigh-frequency electromagnetic radiation |
本文献已被 SpringerLink 等数据库收录! |
|