Blood Flow And Oxygen Concentration can visualize Brain Acticity

According to Diginfo:

The Spectratech OEG-SpO2 is the latest advancement in optical imaging to measure brain function. Hemoglobin transports oxygen from the lungs to the rest of the body, and this device can measure hemoglobin levels in the brain as well as how much oxygen is being transported. Until now, equipment for measuring brain function has used light to measure hemoglobin change, but it was impossible to detect oxygen levels in the arteries of the brain simultaneously.


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