In an electroencephalogram (EEG),
A) the person lies inside a tunnel-shaped apparatus that creates a magnetic field.
B) the person inhales or is given an injection of a radioactive substance, and then lies on an apparatus with a scanner that emits fine streams of X-rays.
C) brain-wave patterns are examined for stability and organization-signs of mature cortical functioning.
D) when an individual is exposed to a stimulus, the EEG detects changes in blood flow and oxygen metabolism throughout the brain magnetically.

Question

Quizplus · Accepted Answer

In an EEG, electrodes are placed on the scalp to measure the electrical activity of the brain. The patterns of brain waves are then analyzed for stability and organization, which are indicators of mature cortical functioning.

Note: A is describing functional magnetic resonance imaging (fMRI), B is describing positron emission tomography (PET), and D is describing magnetic resonance imaging (MRI) with blood oxygen level dependent (BOLD) contrast.

In an Electroencephalogram (EEG)