Compensatory mechanisms of incomplete adaptation

"Incomplete adaptation" (IA), as a phenomenon, is characterised by the replacement of adaptive state for compensatory physiological reactions and by the production of a suboptimal strategy of adaptation. Some laboratory investigations modulating the effect of extreme environmental factors (cold, hypoxia, shift of biological rhythms) on healthy persons as well as psychophysiological investigations of transit workers at northern plants were performed. IA is maintaining due to high plasticity of neurophysiological mechanisms of regulation, connection of central mechanisms of compensation and use of functional reserves of main homeostatic systems (cardiovascular, respiratory, oxygen-saturating, thermoregulating). The condition of IA is characterised by reactive anxiety, inversion of inter-hemisphere domination, features of psycho-somatic tiredness, increased reactivity of breathing and cordial functioning, occurrences of hvpermetabolism and unstable breathing background. New correlational interactions develop between patterns of EEG-activity and indexes of breathing and cardiovascular system. Most often IA occurs when a persons activity occurs under extreme conditions, in particular, when there is a transit organization of work in the North (oil and gas complex), increasing the risk of morbidity.