Faergseende under Hoeg +Gz-Belastning (Color Vision During High +Gz-Load).

摘要

The study has been carried out at US Air Force Research Laboratory (AFRL), Brooks Air Force Base, San Antonio, Texas. It was part of Annex D in a Memorandum of Agreement 'Cooperative Research and Development Efforts in the Field of Air Crew Protection and Performance' between US Air Force and Defence Materiel Administration, Sweden. It has been accomplished as a collaboration between National Defence Research Establishment, Department of Human Studies, Linkoping, Sweden and AFRL, Brooks AFB. In the earlier literature there are sporadic information about hue shifts at increased G-loads. The purpose of this study was to investigate if color vision is affected by high G z-loads up to +9 G z. Ten male subjects of whom nine had normal vision and on a slight color vision deficiency took part in the study. All were accustomed to high G z-loads in a human centrifuge. Each subject was exposed to a total of 60 G z-exposures with 10 s periods at +3, +5, +7, and +9 G z in the centrifuge during three different days. G-onset rate was 6G/s. Straining maneuvers were used if necessary and the subjects wore an anti-G suit. Five squared color stimuli of medium saturation (yellow, red, blue, green, and gray) were projected on a screen in front of the subject, who orally gave his hue response.