[Dynamics of the disturbances in pilot activities in hypoxia].
Changes in the structure of the work done by aircraft flyers during piloting and oxygen starvation were studied. The experiments were carried out on 10 pilots who performed simulation flights while breathing hypoxic gas mixtures containing 10.5% O2 (at an altitude of 5000 m) or 9.6% O2 (at an altitude of 5600 m). These findings suggest that the earliest sign of disordered piloting during hypoxia was a delayed formation of controlling actions. At greater hypoxia noticeable changes were seen in the structure of motor activities together with distinct disturbances of coordination relations of muscles-antagonists involved in the realization of controlling movements. The sensory component suffered from the hypoxic effect to a lesser extent. Complex forms of the mental activity proved to be most resistant to hypoxia.
D000337:Aerospace Medicine; D003657:Decision Making / Q000502:physiology; D005133:Eye Movements; D006801:Humans; D000860:Hypoxia / Q000503:physiopathology*; D007100:Imitative Behavior / Q000502:physiology*; D008961:Models, Structural; D013850:Thinking / Q000502:physiology
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