N. I. Vereshchak

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The changes in the parameters of locomotion in three groups of white rats at ages from 5 to 16 weeks were investigated in this study: 1) following unilateral extirpation of an area of cerebral cortex in the zone of the motor representation of the hind limb at the age of 5 weeks; 2) following homotypical transplantation of cortical tissue from newborn rats(More)
A number of studies have been performed recently in which brain tissue was transplanted to reduce structural and functional lesions induced by brain damage [6-10, 13, 14]. Reports of investigations of the effects of long-term transplants injected into the areas of experimental lesions in the sensorimotor region of the rat brain have described different(More)
Superslow electrical activity was studied after the action of neurotropic drugs on curarized rabbits with gold electrodes implanted in the deep brain structures. Intramuscular administration of 1/5 mg/kg dose of ethimizol, of 5 mg/kg of ethipyrol, or of 1/5 mg/kg of metamizyl led to a reciprocity of the oscillation amplitudes between the field CA-3 of the(More)
In recent years, along with the study of endogenous compensatory factors [7], the use of brain tissue transplantation techniques, among the possible avenues for the reduction of the consequences of brain lesions, has elicited considerable interest [3, 5]. We showed in a preceding investigation that the parameters of locomotion in the motor cortex of(More)
Changes of the locomotion parameters were studied in three groups of rats of 5 to 16 weeks of age: 1) after unilateral removal of a part of the hindleg motor representation in 5-week animals; 2) after homotopic transplantation of neonatal cortical tissue into the ablation site; 3) in intact rats. In operated rats, a delay in the usual increase of the step(More)
Quantitative locomotion changes have been studied in the norm and in different periods after local ablation of motor projection of hind paw in the right hemisphere of 5-16 weeks white rats. The length and width of step gradually increase with the age, and coefficients of gait asymmetry reflecting individual characteristics, are relatively stable in intact(More)
Microelectrode experiments were performed on the transplants (TPs) in the motor cortex, MI, of adult rats 2 to 6 mo and 8 to 11 mo after grafting TPs taken from one of hemispheres of newborn rat. Within TPs, latencies of neuronal responses evoked by means of electrocutaneous stimulation of forelimbs, hindlegs and vibrissal pads were ranged, from 13 to 30(More)
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