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PubMed1991

[An increase in the excitability of nonspecific cortical formations during a decrease in the level of influences from the brain stem reticular formation].

In chronic experiments on alert unrestrained cats with cortical implanted electrodes, the thresholds of EEG activation to electrical stimulation were investigated in normal cats and in animals with diminished influences from the mesencephalic RF. Comparative analysis of the thresholds revealed an increase of the cortical unspecific excitability in diminished reticular influences. The relation of this increase to the neurophysiological mechanisms of neurotic pathology is discussed.

Animals↗
PubMed1985

[Effect of novocaine block of limbic system formations of the brain, hypothalamus and reticular formation on evoked potentials in the ventrobasal thalamic nucleus of the rat].

The effect of novocain on evoked potentials (EP) recorded from the ventrobasal complex (VBC) of rats thalamus has been studied during a single pulse stimulation of the contralateral hind paw immobilized with curare. It has been established that significant sinchronized decrease of amplitudes of all the three early components of EP has been observed during the novocain administration in the reticular thalamic nucleus, lateral amygdaloid area and septum. During the blocking of the anterior and posterior hypothalamus the amplitude of the second negative component of EP in VBC decreases, while during the blocking of the dorsal hypothalamus an increase of the amplitudes of all the three early components of EP is mainly observed.

Afferent Pathways↗