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Biomedical subjects

T G Kuznetsova

Publications and source records attributed to T G Kuznetsova.

13 recordsLinked to original sources
PubMed1997

[Behavioral instrumental reactions and the frequency of cardiac contractions in chimpanzees with different rates of approaching a goal and a shortened time of its exposure].

Reaching the goals moving with different speed (from 1 to 400 mm/sec), the chimpanzee revealed respective behavioural, emotional, instrumental, and cardiovascular responses. When obscuring the goal for a certain time, the chimpanzee nevertheless managed to reach it, the relations between the speed of approaching goal and behavioural or instrumental responses being preserved. Thereupon, the chimpanzee are able to reach the goal provided the latter's trace exceeds 5-10-fold the time of really acting stimulus.

Animals↗
PubMed1995

[Begging and sharing in a group of adolescent chimpanzees].

80 15-min tests using toys were carried out with 4 juvenile chimpanzees who, to obtain the toys, used 4 strategies: (1) taking by force, (2) snatching and fleeing, (3) begging, (4) hysterics. Sharing toys was a normal strategy of high-ranking animals. Begging and hysterics were mainly used in contacts with the latters. A strong negative correlation was found between hysterics and friendly behaviour.

Altruism↗
PubMed1991

[The behavioral and cardiovascular reactions of the young chimpanzee in the 1st month of life].

The analysis of behavioral reactions and cardiac rhythm of 9-30 days old chimpanzees is given. It has been found that the active emotionally negative reaction with signs of avoidance and the passive defensive reaction of fading appear first. This behavioral reactions are reflected in the mechanisms of the cardiovascular system regulation. The active defensive reaction is accompanied by tachycardia growing from the beginning up to realization, and the passive defensive reaction is accompanied by bradycardia. The emotional reactions influence the tonus of floating nerve even at this age.

Aging↗
PubMed1987

[Formation of a generalized reaction of choice of object according to color in a young chimpanzee].

It has been established that the necessary conditions for rapid formation of experience in chimpanzees are creation of the interspecific functional system experimenter-chimpanzee in which the mechanisms of imitation and refreshment and creation of situational conditional reflex may be equally used. The neurophysiological basis of the latter is the stage activity when each stage is the signal for the following and refreshment for the previous one. In the presence of these factors the possibility of formation of aim generalized reflex appears, that is the basis for creation of optimum conditions for perception and learning the given information.

Animals↗
PubMed1983

[Ultrastructure of the acoustic papillae in the inner ear of Rana temporaria L].

With the help of light and scanning microscopy the receptive apparatus of two acoustic papillas (papilla basilaris and p. amphibiorum) of brown frog has been compared. It has been shown that the hair cells of p. amphibiorum are more numerous and some of them differ from those of p. basilaris by the character of arrangement, number of stereocilia and surrounding them supporting cells--by their greater size and density of microvilli.

Animals↗
PubMedDate not supplied

[Construction in chimpanzees].

Chimpanzees with the help of reconstruction and the "step-by-step" analysis of a figure--sample can plan a circuit of actions, forming an image of an end result. Ability to such actions proves at them an opportunity of cogitative operations, allowing to collect multielement figures on a sample. Generalization of concrete operations with concrete elements creates the precondition for the generalized understanding of a principle of actions--knowledge--in general to collect separate elements in complex designs. In it the powerful conceptual potential chimpanzees is covered. It allows to use chimpanzees as model preverbal a level of thinking.

Animals↗
PubMedDate not supplied

[Dynamics of heart rhythm in chimpanzees during the perception of the emotionally colored human voice].

The performed study allowed to observe in two chimpanzees both common and individual changes of the heart rate under the action of human voice with emotionally positive or negative intonation, as well as under the action of preferred (sweet) or rejected (quinine solution) natural stimulus. The common property consists in a significant slowing down of the heart rate in response to negative vocal signal and rejected natural stimulus and in only slight change of the heart rate in response to positive signals. Individual properties comprise differences in reactions of the cardiovascular system of both animals to negative action: a greater efficiency of the vocal signal for one chimpanzee and of the direct (natural) stimulus for the second one.

Animals↗