15 Questions
What is the primary purpose of an electroencephalogram (EEG)?
To record electrical activity in the brain
What is the frequency range of the theta wave?
Between 3.5 and 7.5 Hz
At what age is the alpha wave typically seen in normal relaxed adults?
After the thirteenth year
What happens to the alpha wave when the eyes are opened or alerted by any mechanism?
It disappears
What is the highest amplitude wave in EEG?
Delta wave
What is the term for the brain cells communicating through electrical impulses?
Electrical activity
What is the function of the amplifier in an EEG?
To amplify the electrical impulses from the brain
What is the frequency range of the delta wave?
Below 3 Hz
Where is the alpha wave typically seen in the head?
In the posterior regions of the head on each side
At what stage of sleep do delta waves dominate?
Stages 3 and 4 of sleep
When do brain cells normally communicate through electrical impulses?
Always
How are the electrical impulses from the brain sent to be recorded?
Via electrodes placed on the head
What disappears when the eyes are opened or alerted by any mechanism?
Alpha wave
What is the highest amplitude wave in an EEG recording?
Delta wave
At what age is the theta wave normal in children?
Up to 13 years old
Learn about Electroencephalogram (EEG), a test that measures electrical activity in the brain, and what it records. Understand how brain cells communicate through electrical impulses.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
