Structural imaging techniques focuses on the anatomical features of the brain. Structural imaging techniques include contrast x-rays, computed tomography (CT), and magnetic resonance imaging (MRI). CT scanning provides a 3-D reconstruction of the brain. MRI creates an image of the brain structure by the measurement of waves that hydrogen atoms send out by using a magnetic field and pulses of radio wave energy. Functional imaging techniques focus on the physiology which is used to map brain processes. Functional imaging techniques include functional magnetic resonance imaging (fMRI), positron emission tomography (PET), Electroencephalography (EEG), and magnetoencephalography (MEG). fMRI uses hemoglobin to get a picture of the blood flow corresponding
