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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Schneider, S; Robinson, R; Smith, C; von der Wiesche, M; Goswami, N; .
Gender specific changes in cortical activation patterns during exposure to artificial gravity.
ACTA ASTRONAUT. 2014; 104(1): 438-443. Doi: 10.1016/j.actaastro.2014.03.003
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Co-Autor*innen der Med Uni Graz: Goswami Nandu
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Abstract:: Keeping astronauts healthy during long duration spaceflight remains a challenge. Artificial gravity (AG) generated by a short arm human centrifuges (SAHC) is proposed as the next generation of integrated countermeasure devices that will allow human beings to safely spend extended durations in space, although comparatively little is known about any psychological side effects of AG on brain function. 16 participants (8 male and 8 female, GENDER) were exposed to 10 min at a baseline gravitational load (G-Load) of +.03 Gz, then 10 min at +.6 Gz for females and +.8 Gz for males, before being exposed to increasing levels of AG in a stepped manner by increasing the acceleration by +.1 Gz every 3 min until showing signs of pre-syncope. EEG recordings were taken of brain activity during 2 min time periods at each AG level. Analysing the results of the mixed total population of participants by two way ANOVA, a significant effect of centrifugation on alpha and beta activity was found (p < .01). Furthermore results revealed a significant interaction between G-LOAD and GENDER alpha-activity (p < .01), but not for beta-activity. Although the increase in alpha and beta activity with G-LOAD does not reflect a general model of cortical arousal and therefore cannot support previous findings reporting that AG may be a cognitively arousing environment, the gender specific responses identified in this study may have wider implications for EEG and AG research. (C) 2014 IAA. Published by Elsevier Ltd. All rights reserved.
Find related publications in this database (Keywords): EEG; Artificial gravity; Exercise; Brain cortical activity; Alpha activity; Gender