title: Effect of 30% oxygen administration on verbal cognitive performance, blood oxygen saturation and heart rate.
abstract: This study investigated the effect of 30% oxygen administration on verbal cognitive performance, blood oxygen saturation, and heart rate. Five male (24.6(+/-0.9) years) and five female (22.2(+/-1.9) years) college students were selected as the subjects for this study. Two psychological tests were developed to measure the performance level of verbal cognition. The experiment consisted of two runs: one was a verbal cognition task, with normal air (21% oxygen) administered and the other was with hyperoxic air (30% oxygen) administered. The experimental sequence in each run consisted of Rest 1 (1 min), Control (1 min), Task (4 min), and Rest 2 (4 min). Blood oxygen saturation and heart rate were measured throughout the four phases. The results of the verbal behavioural analysis reveal that accuracy rates were enhanced with 30% oxygen administration compared to 21% oxygen. When 30% oxygen was supplied, blood oxygen saturation was increased significantly compared to that with 21% oxygen administration, whereas heart rate showed no significant difference. Significant positive correlations were found between changes in oxygen saturation and cognitive performance. This result supports the hypothesis that 30% oxygen administration would lead to increases in verbal cognitive performance.
authors.affiliation: Department of Biomedical Engineering, Konkuk University, 322 Danwall-dong, Chungju, Chungbuk 380-701, South Korea. scchung@kku.ac.kr
authors.forename: Soon-Cheol
authors.initials: SC
authors.lastname: Chung
authors.forename: Sunao
authors.initials: S
authors.lastname: Iwaki
authors.forename: Gye-Rae
authors.initials: GR
authors.lastname: Tack
authors.forename: Jeong-Han
authors.initials: JH
authors.lastname: Yi
authors.forename: Ji-Hye
authors.initials: JH
authors.lastname: You
authors.forename: Ji-Hun
authors.initials: JH
authors.lastname: Kwon
mesh_terms: D000328:Adult; D003071:Cognition / Q000187:drug effects*; D003627:Data Interpretation, Statistical; D004562:Electrocardiography / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D008297:Male; D010100:Oxygen / Q000097:blood* / Q000494:pharmacology*; D011597:Psychomotor Performance / Q000187:drug effects*; D014705:Verbal Behavior / Q000187:drug effects*
chemical_list: D010100:Oxygen