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)positron-emission tomography.
B)functional magnetic resonance imaging.
C)a microelectrode recording.
D)an electroencephalogram.

Question

Quizplus · Accepted Answer

The use of coin-shaped electrodes and a machine that translates the electrical energy from the brain into wavy lines on a moving paper suggests that Miranda's brain activity is being recorded using an electroencephalogram (EEG). A microelectrode recording involves a very small electrode inserted into the brain tissue, while positron-emission tomography (PET) and functional magnetic resonance imaging (fMRI) are imaging techniques that do not involve electrodes on the scalp.

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