Night sleep structural alteration as a function of individual strategy of adapting to 520-day isolation.

Autor: Zavalko, I., Boritko, Ya., Kovrov, G., Vinokhodova, A., Chekalina, A., Smoleevsky, A.
Předmět:
Zdroj: Human Physiology; Dec2016, Vol. 42 Issue 7, p766-776, 11p
Abstrakt: The purpose of the study was to establish a relationship between trends in sleep alteration and individual adaptation to stress factors in the 520-day isolation study. Psychological evaluations using a battery of motivation tests, Sobchik's modification of the Luscher personality test, and Mirror coordinograph made it possible to differentiate groups responding to the stress according to the pattern 'control' (G-1) or 'search' (G-2) manifested in individual styles of behavior and operator's activity. The two groups exhibited different dynamics of the night sleep structure. Difficulties with falling asleep in G-1 arose on the eve of 'landing onto Mars' and end of the experiment, whereas in G-2 they were evident prior to the end only. In addition, the micro- and segmental sleep structures were more stable in G-1, suggesting the integrity of somnogenic mechanisms despite difficult sleep initiation. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index