Coin-shaped electrodes are pasted onto Miranda's scalp and they are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper. From this description, it is evident that Miranda's brain is being studied through the use of:
A) an electroencephalogram.
B) functional magnetic resonance imaging.
C) positron-emission tomography.
D) a microelectrode recording.

Question

Quizplus · Accepted Answer

The electrodes pasted onto Miranda's scalp and connected to a machine that translates her brain's electrical energy into wavy lines on a moving piece of paper indicate that she is undergoing an electroencephalogram (EEG). EEG is used to study brain activity by recording electrical activity generated by the brain's neurons. Option B, functional magnetic resonance imaging, uses strong magnetic fields and radio waves to generate images of the brain, while option C, positron-emission tomography, uses a radioactive substance injected into the body to show activity in certain areas of the brain. Option D, microelectrode recording, involves the insertion of small electrodes into the brain tissue, which is not indicated in the given scenario.

Coin-Shaped Electrodes Are Pasted onto Miranda's Scalp and They Are