Effect of Ground-based Simulation with Inhaling Different Concentration Oxygen Mixed Gas on the Mental Rotation Ability
Author(s): XIA Ling, CHEN Xiao-jian, HU Lin-feng, LI Jiao-jie, Aviation Medicine Assessment and Training Center, Air Force
Pages: 253-256
Year: 2017 Issue: 4
Journal: Military Medical Journal of South China
Keyword: Mental rotation; Hypoxia; Spatical cognition; Pilots;
Abstract: Objective To observe mental rotation ability of ground-based simulation in different low-oxygen environments and explore new hypoxia training pattern.Methods Sixty healthy males were successively performed with mental rotation tests(rotated erect and mirror image of letter F,G,L,P,Q and R by 0°,60°,120°,180°,respectively,clockwise and anticlockwise)in ground-based simulation,simulating under high-altitude hypoxic environment about 5000 and 7500 m.The measurements including error rate and reaction time were recorded.Results(1)Error rate:error rate of7500 metres was highest,and error rate of 5000 metres was lowest(0.073±0.014,0.052±0.008,P<0.05).With the increase of rotation angles(0°,60°,120°,180°),the error rates were significantly increased in turn,except 0°and 60°(0.020±0.004,0.031±0.008,0.062±0.013,0.133±0.020,P<0.01).(2)Reaction time:with the increase of altitude(ground,5000 m,7500 m),the reaction time decreased in turn.There was significantly difference between ground and 7500 m [(798.585±34.583),(744.845±37.231)ms,P<0.05].Compared with the reaction time of normal group,that of mirror group was significantly longer[(706.870±28.218),(833.137±43.028)ms,P<0.01].With the increase of rotation angles(0°,60°,120°,180°),the reaction time were significantly increased in turn [(692.309±32.886),(710.697±32.648),(782.300±35.384),(894.708±42.794)ms,P<0.01 or P<0.05].Conclusion Hypoxia exposure has a strong influence on the mental rotation ability,and aviation physiology training can carry on new pattern about hypoxia experience combining with mental rotation tests.
Pages: 253-256
Year: 2017 Issue: 4
Journal: Military Medical Journal of South China
Keyword: Mental rotation; Hypoxia; Spatical cognition; Pilots;
Abstract: Objective To observe mental rotation ability of ground-based simulation in different low-oxygen environments and explore new hypoxia training pattern.Methods Sixty healthy males were successively performed with mental rotation tests(rotated erect and mirror image of letter F,G,L,P,Q and R by 0°,60°,120°,180°,respectively,clockwise and anticlockwise)in ground-based simulation,simulating under high-altitude hypoxic environment about 5000 and 7500 m.The measurements including error rate and reaction time were recorded.Results(1)Error rate:error rate of7500 metres was highest,and error rate of 5000 metres was lowest(0.073±0.014,0.052±0.008,P<0.05).With the increase of rotation angles(0°,60°,120°,180°),the error rates were significantly increased in turn,except 0°and 60°(0.020±0.004,0.031±0.008,0.062±0.013,0.133±0.020,P<0.01).(2)Reaction time:with the increase of altitude(ground,5000 m,7500 m),the reaction time decreased in turn.There was significantly difference between ground and 7500 m [(798.585±34.583),(744.845±37.231)ms,P<0.05].Compared with the reaction time of normal group,that of mirror group was significantly longer[(706.870±28.218),(833.137±43.028)ms,P<0.01].With the increase of rotation angles(0°,60°,120°,180°),the reaction time were significantly increased in turn [(692.309±32.886),(710.697±32.648),(782.300±35.384),(894.708±42.794)ms,P<0.01 or P<0.05].Conclusion Hypoxia exposure has a strong influence on the mental rotation ability,and aviation physiology training can carry on new pattern about hypoxia experience combining with mental rotation tests.
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