Functional magnetic resonance imaging detects variations in the response of hydrogen atoms
when oxygen is present in the blood.

Question

Functional magnetic resonance imaging detects variations in the response of hydrogen atoms	
when oxygen is present in the blood.

Quizplus · Accepted Answer

Functional magnetic resonance imaging (fMRI) works by detecting changes in the oxygenation levels of blood in different regions of the brain. When neurons are active, they require more oxygen, which results in increased blood flow and a corresponding increase in the oxygenation levels of the blood in those regions. By detecting these changes in blood oxygenation, fMRI can create images of the brain that show which regions are active during different tasks or in response to different stimuli. Thus, variations in the response of hydrogen atoms (which are found in water molecules in the blood) when oxygen is present can be detected by fMRI.

Functional Magnetic Resonance Imaging Detects Variations in the Response of Hydrogen