Revision as of 17:23, 27 May 2010 by imported>Daniel Mietchen
Hyperoxia [r]: An increased partial pressure of oxygen in the blood. [e]
(CC) Image: Macey et al., 2007 Functional magnetic resonance imaging of the
human brain during gas challenges. Instead of normal air, the participants inhaled either pure
oxygen (hyperoxia condition), or 95% oxygen and 5%
carbon dioxide (
hypercapnic hyperoxia). Yellow (hyperoxia) and green (hypercapnic hyperoxia) overlays of regions of significant signal response in 14 children at any of five time successive periods during the challenges. Multiple brain regions responded to hyperoxia, but the addition of 5% O
2 by CO
2 greatly reduced most responses.
(CC) Image: Macey et al., 2007 The same information for the hyperoxic condition, now plotted at five successive time periods during the challenges.