title: Effects of acute moderate hypoxia on human performance of arithmetic.
abstract: To observe the effects of acute moderate hypoxia on human performance of arithmetic, the continuous calculation test, addition-subtraction test and mental arithmetic tests were made in 16 health young male subjects during exposure to altitude of 300 m (control), 3600 m, 4400 m and 5000 m by mean of hypobaric cabin simulation. Error rate of the continuous calculation test and reaction time of addition-subtraction test increased significantly and performance decreased significantly (P < 0.05) after exposure to 3600 m for 1 h. Reaction time, total number and performance of all tests decreased significantly (P < 0.05) during exposure to 4400 m. Performance of all tests decreased (P < 0.01) after exposure to 5000 m for 30 min.
authors.affiliation: Department of Aerospace Medicine, Fourth Military Medical University, Xi'an, China.
authors.forename: X
authors.initials: X
authors.lastname: Wu
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: L
authors.initials: L
authors.lastname: Han
authors.forename: T
authors.initials: T
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Wei
mesh_terms: D000293:Adolescent; D000337:Aerospace Medicine; D000531:Altitude; D001273:Atmosphere Exposure Chambers; D003071:Cognition; D006801:Humans; D000860:Hypoxia / Q000503:physiopathology / Q000523:psychology*; D008297:Male; D008433:Mathematics; D011930:Reaction Time; D013647:Task Performance and Analysis