The effect of 30% oxygen on visuospatial performance and brain activation: an fMRI study.
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.
Chung
Soon-Cheol
SC
Department of Biomedical Engineering, College of Medicine, Konkuk University, Choongjoo, Republic of Korea. scchung@kku.ac.kr
Tack
Gye-Rae
GR
Lee
Bongsoo
B
Eom
Gwang-Moon
GM
Lee
Soo-Yeol
SY
Sohn
Jin-Hun
JH
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
D010100:Oxygen