[Superslow oscillations of the indices of the state of a human-operator as a result of monotony].

Infralow oscillations were studied of psychophysiological parameters appearing at one-minute wave range at different levels of human operator's nervous system in conditions of monotony. In experiments on recognition of noisy visual images presented with the frequency of 6-9 signals per hour, 22 subjects took part. The following was found: a) correlation between superslow components of pulse rate and the coefficient of brain potentials synchronization, established in 20-30 min after the beginning of the experiment; b) a tendency to deterioration of the quality of recognition at the stages of slowing down of infralow waves of the pulse rate and to its improvement at the phases of the increase of their frequency. Main results were obtained by the method which needs neither unartifact electrodes nor DC amplifiers. Possible mechanisms of stated dependences are discussed.