Hemoglobin: Hemoglobin is a protein found in red blood cells that carries and releases oxygen throughout the body.
Functional Magnetic Resonance Imaging (fMRI): fMRI is an imaging technique that measures changes in blood flow and blood-oxygen levels in different areas of the brain, providing information about brain activity.
Oxygen Saturation: Oxygen saturation refers to the percentage of hemoglobin molecules carrying oxygen compared to its total capacity.