EEG & The Brain
Measurements & Math
Landmarks
What's my (electrode) name again?
Application
100
What does EEG stand for?
What is electroencephalography. Also allowed: Electroencephalogram
100
10% from the top of the nose to the middle of the forehead
What is the distance between Nasion and Fpz Also accepted, what is Fpz
100
An indention located near the top of the nose
What is the nasion
100
You can find me 50% of the way between Nasion and Inion
What is Cz
100
Before placing any electrodes, one must _________ and _______ the patient.
What is measure and mark patient.
200
What are the 4 lobes of the brain?
What are the frontal, temporal, parietal, occipital lobes
200
If your head circumference is 58cm, what is the distance between Fp2 and F8?
What is 5.8cm
200
Located on the back of the head, found by sliding your fingers up until you encounter a depression
What is Inion
200
These electrodes record electrical activity from the brain's occipital lobe
What are O1 and O2
200
What must you make sure of before applying an electrode with paste?
What is that the skin is prepped and ready for application
300
To state it simply, EEG is a measure of what?
What is the brain's electrical activity.
300
All the measurement marks made during the circumferential portion of the 10-20 system will be what percent apart in distance?
What is 10%
300
Found near the ears, located by having patient open his/her mouth slightly
What are the Pre-Aricular points
300
State every electrode and label accordingly (on board).
Fp1, Fp2, Fz, F3, F4, F7, F8, T8, C3, Cz, C4, T8, P7, P3, Pz, P4, P8, O1, O2
300
Aside to measurement, prepping the skin, and applying the electrodes, what is vital to achieve a quality recording?
What is symmetry among electrodes
400
What are the four frequencies you will encounter when recording EEG? Please list from slowest to fastest.
What are Delta, Theta, Alpha, and Beta (D-TAB)
400
If the distance from Nasion to Inion is 36cm, what is the measurement from Nasion to Fz?
What is 10.8cm
400
Name all three electrodes that are placed along the midline of the head
What are Fz, Cz, and Pz.
400
You will find these electrodes on the left side of the head, recording activity from the frontal lobe
What are Fp1, F3 and F7
400
Because of the site of incision, you must move your C4 electrode 2mm anteriorly, what other electrode must you also move?
What is the C3 electrode, also adjusting 2mm anteriorly to maintain symmetry.
500
EEG commonly used for: Please state at least 2 examples
What is detection or testing for seizures, epilepsy, stroke, depth of anesthesia
500
This SSEP recording electrode can be found between C4 and P4
What is C4' (prime)
500
Name and label all landmarks on the drawing located on the board.
What are Nasion, Inion, Pre-auricular points
500
How many electrodes complete the International 10-20 system?
What is 19 electrodes (22 if you include electrodes placed on the ear lobes/mastoid and ground)
500
When using the exfoliating scrub on a patient how much pressure should you apply?
About as much pressure of force it would take to light a match.
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