10/20 System

Question 1

What are the Anatomical Landmarks?

Answer 1

Nasion
Inion
Left Pre-Auricular
Right-PrAuricular

Question 2

Modified Nomenclature from the ACNS

Answer 2

T3=T7
T5=P7
T4=T8
T6=P8

Question 3

Electrode Nomenclature

Answer 3

Letter:
Disignates the lobe or area of the brain the electrode covers

Number:
-Midline: Z (zero)-Middle of head starting point
-Left: Odd numbers
-Right: Even numbers

Question 4

What are the 6 planes?

Answer 4

*Frontal Polar (FP)

*Frontal (F)

*Central (C)

*Parietal (P)

*Temporal (T)

*Occipital (O)

Question 5

What are the longitudinal planes?

Answer 5

*Left Temporal

*Left Parasagital

*Saggital (midline)

*Right Parasagital

*Right Temporal

Question 6

What are the Transverse Planes?

Answer 6

*Fontal Polar (FP1, FPZ, FP2)

*Frontal (F7, F3,FZ, F4, F8)

*Central (M1, T3/T7, C3, CZ, C4, T4/T8, M2)

*Parietal (P7, P3, PZ, P4, P8)

*Occipital (O1, OZ, O2)

Question 7

Electrodes Arranged in Planes

Answer 7

Longitudinal: Anterior (front) to Posterior (back
*There are a total of 5 planes

Transverse: Side to Side
*There are a total of 5 planes

Question 8

Longitudinal Planes

Answer 8

Left Temporal: FP1, F7, T7, P7, O1
Left Parasagital: FP1, F3, C3, P3, O1

Sagital: FPZ, FZ, CZ, PZ, OZ

Right Parasagital: FP2, F4, C4, P4, O2
Right Temporal: FP2, F8, T8, P8, O2

FP1/FP2 & O1/O2 share temporal & parietal