With computerized tomography scans (CT scans), recording electrodes are attached to the scalp to measure global changes in the electrical potentials of brain cells.

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CT scans use X-rays to create detailed images of the brain's structure, whereas recording electrodes attached to the scalp are used in electroencephalogram (EEG) to measure the electrical activity of brain cells.

With Computerized Tomography Scans (CT Scans), Recording Electrodes Are Attached