Signal Aquisition

Question 1

Which electrode is placed over the scalp or brain to detect a EEG activity?

Answer 1

Active

Question 2

Which term refers to the particular arrangement by which a number of pairs of electrodes in EEG channels are simultaneously is displayed in an EEG record?

Answer 2

Montage

Question 3

Sudden limb and electrode cable movement will most affect which band?

Answer 3

Delta

Question 4

What is the name of the international EEG electrode placement system?

Answer 4

10–20 international system of electrode placement

Question 5

A montage in which the reference electrode is common to multiple derivations is termed what type of montage?

Answer 5

 Common electrode reference

Question 6

The F, Z, cz , and pz sites are what percent of the total distance between the nasion in the inion starting from FPC?

Answer 6

20%

Question 7

When a faulty electrode connection results in a sudden voltage discharge, this produces…

Answer 7

Electrode, pop, artifact

Question 8

At what percentages are the EEG electrodes distance between the Nací en en en en en between the left preauricular point & right preauricular point?

Answer 8

10 or 20 %

Question 9

How can you control radio frequency artifact?

Answer 9

Remove unused sensor cables from the encoder box

 Select a 40 Hz hi pass filter

Locate encoders away from high frequency, artifact sources

Question 10

A _________  refers to both the process of recording from a pair of electrodes in an EEG channel, and the resulting in EEG record.

Answer 10

Derivation