The effect of head-down tilt on brain potentials related to visual attention

To study the possible effect of simulated weightlessness on brain function state, the brain event-related potentials (ERPs) in a simple visual selective response task were compared between HDT and HUT in 9 normal subjects. The results were: The Target(T) and non-Target(NT) flash signals both induced...

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Bibliographic Details
Published in:Acta astronautica 1995-10, Vol.36 (8), p.649-655
Main Authors: Wei, Jinhe, Yan, Gongdong, Zhao, Lun, Duan, Ran, Xiao, Feng, Li, Dachen, Wu, Jianpin
Format: Article
Language:English
Subjects:
Adult
Aerospace Medicine
Brain - physiology
Electroencephalography
Electrooculography
Evoked Potentials, Visual
Head-Down Tilt
Humans
Male
Photic Stimulation
Posture
Psychomotor Performance
Space life sciences
Weightlessness Simulation
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Summary:To study the possible effect of simulated weightlessness on brain function state, the brain event-related potentials (ERPs) in a simple visual selective response task were compared between HDT and HUT in 9 normal subjects. The results were: The Target(T) and non-Target(NT) flash signals both induced significant slow positive potentials which were supposed to related to the attention state; the amplitude of the positive potentials in frontal regions decreased significantly especially for NT-ERPs during HDT comprared with that during HUT. The data reported provide new evidence indicating that more attention should be paid on the brain function study during space flight.
ISSN:0094-5765
1879-2030
DOI:10.1016/0094-5765(95)00154-9