SYNCHRONIZATION OF EEG RHYTHMS AND HOLOGR APHIC THEORY OF MEMORY

M.N. Livanov's idea about the role of synchronization,of EEG rhythms i n realization of brain functions and holographic theory of memory are two trends in neurophysiology of behavior which develop independently but are really tightly connected, They are unified on the basis of the data concerning the compliance of EEG rhythms and activity of neurons , on the one hand, and the results of mathematical simulation of CNS i nformation processing, on the other. A comparison of slow background a nd evoked potential oscillations and activity of separate units showed close interrelations of these processes in a broad frequency range of exogenous and endogenous EEG rhythms and polyrhythmia. The role of sy nchronous convergence of orderly burst and tonic pulse flows in learni ng was studied in experiments and on a mathematical model of the nervo us network, It was found out that in case of synchronous rhythmical po tential oscillation and corresponding burst unit discharges in the pha se of generalized activation the information fixation was possible in any nervous elements, which simultaneously received pulses from other sources, In the phase of absence of general activation the revealing o f images is possible everywhere in nervous elements, which simultaneou sly received pulses from the other sources, In this phase it is possib le to reveal the images fixed in memory in the form of spatially order ed unit pulse flows. These findings develop M.N. Livanov's ideas conce rning the functional role of synchronization of slow potential oscilla tions and give specific evidence for basic propositions of holographic theory.