Screening of Cognitive Test Items in High Temperature,High Humidity,Low Pressure and Low Oxygen Environments and Study on the Changing Rules of Cognitive Performance
In this study,we screened the test items of cognitive function under high temperature,high humidity,low pressure and low oxygen environment,and carried out cognitive experiments under the temperature of 37℃,relative humidity of 80%,and altitude of 3,500m,to study the change rule of cognitive performance in the human movement state.Five cognitive test items,including visual retention,digit retrieval,attention reversal,visual choice reaction time and Stroop,were screened out through the evaluation of test item difficulty;the stimulus limit,response limit and stimulus amount of the test items were adjusted,and the adjusted stimulus limit evaluation,comprehensive difficulty evaluation and duration acceptance evaluation reached moderate or just acceptable,and the adjusted total test duration was about 710 s.The results of the cognitive experiment showed that the heart rate,oral temperature and oxygen saturation were all within the safety limits,and the oral temperature reached a maximum of 38.3℃.The subjects'cognitive test scores tended to increase during the experiment,indicating that the cognitive performance was improved by exercise,but to maintain the cognitive test scores,the subjects needed to put in more subjective efforts resulting in an increased brain load.The research results of this paper can provide a reference for the screening of cognitive test items and the study of the change rule of cognitive performance in complex environments.
Low pressure and low oxygen environmentCognitive test item screeningCognitive performanceMental load
万方数据
维普
