Question

question 4
1 pts
the scanning device that can record the electrical activity of the brain and denote stages of sleep is the:

○ eeg

○ mri

○ x - ray

○ pet - scan

Explanation:

To solve this, we analyze each option:

• EEG (Electroencephalogram) records the brain's electrical activity, including during sleep stages.
• MRI (Magnetic Resonance Imaging) creates detailed brain images, not electrical activity.
• X - ray is used for skeletal or dense tissue imaging, not brain electrical activity.
• PET - scan (Positron Emission Tomography) shows metabolic activity, not electrical activity of the brain related to sleep stages.

So the correct device is EEG.

Answer:

A. EEG