Ilyuha L. The Comparative Analysis of the Formation Mechanisms and the Role of Different Compo-nents of the Rhinencephal Structures Electrical Activity of the Laboratorial Animals (Rats, Mise, Guinea-Pigs)

The comparative analysis of the formation mechanisms was carried out and the character and dynamics of the definite components of olfactory bulbs and piriform cortex electrical activity (flash components of the ol-facto-amygdalar rhythm, high wave synchronised activ-ity, respiratory waves and polymorphic activity) among laboratorial macrosmatic animals with the different level of neocortex complication in the conditions of different behaviour activity level, viz. rats, mice, guinea-pigs were investigated. The essential differences of the spindles OAR topographical peculiarities, considerable power-frequency differences of the average spectrums of their high wave components and different frequency distribu-tion of the definite components in the measures of char-acteristic spindles of each kind (p<0.05) were discov-ered. The experimental data as to the dynamics of the spectrum characteristics changes EA BO and PC present-ing smell irritants allow to prove that olfactory stimula-tion stipulate reliable reconstruction of the development of the high wave range flash components with increase of the RW development (p<0.01) in the primary olfac-tory centres and violation in the spectrum staff EA cortex more considerable in the smooth-brain animals. The ob-tained data are discussed from the position of possible separation of OAR from only sensor function and its consideration as non-specific source of the cerebral acti-vation in the organisation of the integral behaviour acts of the animals-macrosmatics.