Question

What is the signal amplitude of EEG?

(a) 2-200 µV

(b) 2-200mV

(c) 2-2000 µV

(d) 2-2000mV

I have been asked this question in homework.

I would like to ask this question from Recording Electrodes topic in division Bioelectric Signal and Electrodes of Biomedical Instrumentation

Answer 1

Right answer is (a) 2-200 µV

Explanation: The signal amplitude of EEG is between 2-200 µV. It is very small and requires special type of electrodes namely scalp electrodes. EEGs are difficult to capture because its signal range in very small and motion artifacts are much greater.