[The changes in mental working capacity of operators during 24-hour shift work conditions]

Psychophysiological peculiarities of influence of a 24-hour shift work on the efficiency of operators have been discussed. It was shown that servicemen operators develop significant fatigue as a result of 24 hrs duty services. The informative psychophysiological characteristics which can be reliable indicators of fatigue level are highlighted. Individual psychophysiological indicators of fatigue level, according to different mechanisms of its development, have been proposed. The hypothesis about the existence of several compensatory mechanisms for maintenance of long duty operators' working capacity has been formulated.