What technique of measuring brain responses requires that the individual lay still inside a machine that uses a magnetic field to record changes in blood flow and oxygen use?

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fMRI (functional magnetic resonance imaging) is the technique that requires the individual to lay still inside a machine that uses a magnetic field to record changes in blood flow and oxygen use. EEG (electroencephalography) measures electrical activity in the brain using sensors placed on the scalp. EKG (electrocardiogram) measures electrical activity in the heart. CBF (cerebral blood flow) measures blood flow in the brain.

What Technique of Measuring Brain Responses Requires That the Individual