Oxygenated and deoxygenated haemoglobin absorb near-infrared light differently, enabling functional imaging
Evidence
In response to neural activity in the brain, an increase in oxygenated blood is directed to the region, resulting in a drop in de-oxygenated blood. Thus HbO and HbR concentrations change in opposite directions in response to neural activity (Shah and Seghouane 2014 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273 (
#corroborates, via linked claim)
Categorization
- XREF: connects to: Neural activity drives opposite changes in oxygenated and deoxygenated hemoglobin — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273; Brain activity drives opposing concentration changes in oxygenated and deoxygenated blood
Related
- Neural activity drives opposite changes in oxygenated and deoxygenated hemoglobin (similarity 0.94)
- Neural activity raises oxygenated and lowers de-oxygenated blood locally, enabling optical imaging (similarity 0.90)
- Brain activity can be measured optically because haemoglobin absorbs near-infrared light differently when oxygenated. (similarity 0.89)
- NIR light absorption differs between oxygenated and de-oxygenated haemoglobin (similarity 0.84)
- Brain activity drives opposing concentration changes in oxygenated and deoxygenated blood (similarity 0.83)
Broader Connections
- Neural activity drives opposite changes in oxygenated and deoxygenated hemoglobin
#corroborates(0.92) — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273 - Brain activity drives opposing concentration changes in oxygenated and deoxygenated blood
#corroborates(0.90)