Dynamics of Metabolic Parameters in Rats during Repeated Exposure to Modulated Low-Intensity UHF Radiation.

Metabolic parameters in rats were studied at various stages of repeated exposure to modulated low-intensity UHF radiation. The volume of O consumption and level of heat release were reduced by day 4 of intermittent irradiation and remained low over the next 2 days in the absence of a source for electromagnetic radiation. The amount of expired CO slightly increased over the first 3 sessions of irradiation, but significantly decreased in the recovery period on days 5 and 6.

Behavioral Indexes of Thermal Nociceptive Sensitivity in Rats after Melatonin Administration.

We studied the effect of melatonin (10 mg/kg intraperitoneally) on behavioral indexes reflecting changes in nociceptive sensitivity of rats in response to thermal stimulation in the hot plate test. Administration of melatonin to animals suppressed the perceptual component of nociception, which was manifested in an increase in the perception threshold of noxious thermal stimulus. In the follow-up period, exogenous melatonin contributed to a decrease in the latency of avoidance reactions and enhanced the behavior of escaping the thermal nociceptive stimulation.

Study of behavioral parameters during learning of rats in an operant feeding task and evaluation of biochemical indexes after dietary consumption of the phytoecdysteroid extract.

Experiments on rats were performed to study the process of operant feeding learning, locomotor activity, oxygen consumption, and concentrations of corticosterone, β-endorphin, and prostaglandin E in blood serum after dietary treatment with the phytoecdysteroid extract. Administration of phytoecdysteroids was followed by the improvement of learning and increase in oxygen consumption and locomotor activity. Locomotor activity and oxygen consumption in the majority of control rats and phytoecdysteroid-treated animals were shown to be interrelated with the total locomotor activity and goal-directed operant behavior, respectively.

Express method for systemic psychophysiological analysis of human purposeful activity.

A psychophysiological sensorimotor test for systemic evaluation of human purposeful activity and detection of his/her mental strain are created and tested. The novelty and priority of the new test consists in the possibility for the subject to choose the situational and trigger signals for achieving the result. The algorithm of data analysis includes an important component: performance evaluation after errors.

Dynamics of neuronal, autonomic, and motor measures in animals performing an acquired habit.

Previously obtained results and data from other groups showing that intersignal activity in animals correlates with the success of acquisition of defensive and food-procuring behavior are presented. In addition, specific changes in neuron activity and in the dynamics of cardiac and respiratory activity are demonstrated during performance of intersignal behavioral acts. The moments of appearance of intersignal activity were studied, as were patterns of changes in neurophysiological measures during different types of intersignal actions.