title: The effect of 30% oxygen on visuospatial performance and brain activation: an fMRI study.
abstract: This study aimed to investigate the hypothesis that administration of the air with 30% oxygen compared with normal air (21% oxygen) enhances cognitive functioning through increased activation in the brain. A visuospatial task was presented while brain images were scanned by a 3 T fMRI system. The results showed that there was an improvement in performance and also increased activation in several brain areas in the higher oxygen condition. These results suggest that a higher concentration of breathed oxygen increases saturation of blood oxygen in the brain and facilitates performance.
authors.affiliation: Department of Biomedical Engineering, College of Medicine, Konkuk University, Choongjoo, Republic of Korea. scchung@kku.ac.kr
authors.forename: Soon-Cheol
authors.initials: SC
authors.lastname: Chung
authors.forename: Gye-Rae
authors.initials: GR
authors.lastname: Tack
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Lee
authors.forename: Gwang-Moon
authors.initials: GM
authors.lastname: Eom
authors.forename: Soo-Yeol
authors.initials: SY
authors.lastname: Lee
authors.forename: Jin-Hun
authors.initials: JH
authors.lastname: Sohn
mesh_terms: D000328:Adult; D001921:Brain / Q000378:metabolism*; D001931:Brain Mapping; D003071:Cognition / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008606:Mental Processes / Q000502:physiology*; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology; D012016:Reference Values; D013028:Space Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology
chemical_list: D010100:Oxygen