Activity style in extreme conditions as an emergent attribute of an integrated individuality of chief fire officers

The researchers deal with the availability of polysystem approach, that is integrative examining of extreme activity styles, from the aspect of integrated individuality theory. The paper exposes the results of interdisciplinary research of chief fire officers' activity. Peculiarities of coping behaviour and self-regulation in extreme activity are under consideration. The researchers reveal the structure of combat activity styles, their dependence on the symptom cluster of different levels' attributes of an integrated individuality.