A previous investigation showed that alcohol impairs the ability to suppress vestibular nystagmus, thus degrading visual compensatory tracking performance during angular acceleration. Reduced display illumination, independently, has also been shown to degrade tracking performance during vestibular stimulation. The present study investigated the way in which low and moderate dosages of alcohol and two levels of instrument-display illumination combined to affect tracking performance a) in a static (no motion) environment, and ...
Four healthy male subjects 19 to 23 years of age were exposed to tilt in a specially constructed chair mounted in a rotating room which is built around the center of a human centrifuge. Determinations of the course of the adaptation to the oculogyral illusion are reported. Also compared are the effects of their voluntary head movements. Information obtained appears to have application to anticipated problems in manned orbiting satellites ...
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