[Methods of topographic presentation of the bioelectric activity of the brain].

Prerequisites for developing brain activity topographic mapping and its present status are given. Its advantages and disadvantages, use potentialities in the diagnostic practice of neurological and mental hospitals are discussed.

[The mapping of cortical interaction in the asthenic neurosis syndrome].

Topographic mapping method was used to study the spatial-temporal organization of neocortical electrical activity at norm and asthenic neurosis. Patients with asthenic syndrome had shown right hemisphere dominance by the number of cortical interconnections in theta-band and interhemispheric discordance by coherence function.

[Effect of haloperidol on the processes of information selection].

On the conditioned defensive reflex model with a short-term delayed reinforcement during an acute experiment on cats it was shown that a single intravenous injection of haloperidol (0.75 mg/kg) leads to impairment of information selection due to changed spatial-temporary distribution of conditioned evoked potentials (CEP) being electro-graphical correlates of memory trace in the brain structures (acoustic cortex, zona incerta, central gray matter, amygdaloid complex, reticular formation, hippocamp and preoptic region) and also impairment of the conditioned neurographic response and conditioned skin-galvanic response. The observed spatial-temporary distribution of CEP under haloperidol medication is similar to the same distribution during latent inhibition.

[Spatio-temporal distribution of conditioned evoked potentials during latent inhibition in the cat].

Using the model of shortly delayed defensive conditioned reflexes in cats it is shown that nonreinforced preexposure of conditioned stimulus leads to a definite manifestation of electrographic correlates of the memory trace, i. e. of the conditioned evoked potential in examined brain structures, as well as of conditioned neurographic response and conditioned skin-galvanic reaction.