imported>Daniel Mietchen |
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| == Summary == | | == Summary == |
| {{Image_Details
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| |description = [[fMRI|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]] ([[hypercapnia|hypercapnic]] hyperoxia). Yellow (hyperoxia) and green (hypercapnic hyperoxia) overlays of regions of significant signal response in 14 children at five successive time periods during the challenges (time scale below images). For location guide, see [[:Image:Brain-MRI-location-guide.png]]. As shown by images in the top rows, multiple [[brain region]]s responded to hyperoxia, but addition of 5% CO2 to the gas mixture altered the timing or greatly reduced most responses (bottom rows), and eliminated all responses after 48 s. [[Statistical threshold]] [[probability of error|p]] = 0.05, [[false discovery rate]] correction.
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| |author = [[CZ:Ref:Macey 2007 Hyperoxic brain effects are normalized by addition of CO2|Macey et al., 2007]]
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| |copyright = [[CZ:Ref:Macey 2007 Hyperoxic brain effects are normalized by addition of CO2|Macey et al., 2007]]
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| |source = Fig. 2 from {{CZ:Ref:Macey 2007 Hyperoxic brain effects are normalized by addition of CO2}}
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| |date-created = June 26, 2006
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| |pub-country = United States
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| |notes =
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| |versions = [[:Image:CO2-O2-fMRI-hyperoxia-over-time.png]] and [[:Image:CO2-O2-fMRI-hypercapnic-hyperoxia-over-time.png]]
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| }}
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| == Licensing/Copyright status ==
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| {{CC|by|2.5}}
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