AP Psych Unit 1- Brain Scans

EEG

Electroencephalogram

EEG method

electrodes placed on the scalp to record waves and measure electrical activity in neurons

CT

Computed Tomography

CT scan method

x rays from different angles are compiled together and show a slice of the brain

PET

Positron emission tomography

PET method

radioactive glucose is tracked while a person performs a task

MRI

Magnetic Resonance Imaging

MRI method

magnetic fields and radio waves produce computer generated images of soft tissue- shows brain anatomy

fMRI

functional MRI

fMRI method

compare successive MRIs to reveal blood flow and brain activity- structure and function

MEG

Magnetoencephalography

MEG method

magnetic fields from brain’s neural activity measured