G. M. Gruzdev

  • Citations Per Year
Learn More
We studied characteristics of the EEG activity and psychophysiological indices in healthy persons and patients with opiate addiction (in the states of abstinence and remission) before and after peroral introduction of 200 mg sulpiride. In the initial state, spectral characteristics of EEG in patients with opiate addiction differed from those in the control(More)
Inves t iga t ion of the unit ac t iv i ty of s ingle b ra in s t r u c t u r e s connected synapt ica l ly with the caudate nucleus has shown that s t imula t ion of the eaudate nucleus evokes complex r e s p o n s e s in them with a long la tent pe r iod [2, 5, 7]. S imi la r unit r e s p o n s e s have a l so been r e c o r d e d in the cauda te nucleus(More)
Spontaneous unit activity recorded extracellularly from the caudate nucleus in acute experiments on cats was analyzed. A graph of the sliding mean frequency, an interspike interval histogram, correlogram, intensity function, and histogram of correlation between adjacent intervals were plotted for the spontaneous activity of each neuron. The spontaneous(More)
Spontaneous and evoked activity of caudate nucleus neurons was recorded extracellularly in acute experiments on cats. Different forms of potentials were found by analysis of the results. The potentials recorded belong to three types: ordinary action potentials; prepotentials or incomplete spikes differing from ordinary action potentials in their lower(More)
In experiments on immobilized cats extracellular responses of caudate nucleus neurons were recorded during electrical stimulation of anterior sigmoideus and suprasylvius gyri. In the first set of experiments performed on cats with an intact thalamus the responses to stimulation of both cortical areas represented initial excitation (sometimes absent)(More)
Extracellular recording from the caudate nucleus neurons was performed in experiments on immobilized cats during paired stimulation of anterior sigmoideus and middle suprasylvius gyri. The findings indicate that the two cortical areas influence these neurons, the motor cortex having a greater influence on caudate neurons than the association cortex. The(More)
Spike activity of pairs of neurons was recorded simultaneously with a single microelectrode in the caudate nucleus of lightly anaesthetized immobilized cats. A high time correlation was observed in discharges of two neurons when their background activity showed group discharges. In case of unitary background activity, correlation between spike trains was(More)