CNIM Prep Week 5 - Evoked Potential Instrumentation Exam Questions & Answers (Grade A+).docx

CNIM Prep Week 5 - Evoked Potential
Instrumentation Exam Questions &
Answers (Grade A+)
Question: What is the advantage of gold over other materials (eg.
Stainless steel) for
recording electrodes? -
correct answer ✅Longer time constant


Question: The slope of a hicut filter function which describes the
decrease in filter output with
increasing frequency above the cutoff is called: -
correct answer ✅The rolloff


Question: In order to display a negative peak at the electrode
upward on the screen it must be
plugged into the: -
correct answer ✅Negative input


Question: If your background noise is 5 uV, what will be the
amplitude of the noise after 100
averages? -
correct answer ✅0. 5 uV

, CNIM Prep Week 5 - Evoked Potential
Instrumentation Exam Questions &
Answers (Grade A+)
Question: A 60 Hz notch filter should not be used for evoked
potential recording because of: -
correct answer ✅The ringing artifact that comes from distortion of
the stimulus artifact


Question: A differential amplifier with a Gain of 1000 will amplify an
input voltage of 1uV by: -
correct answer ✅1000


Question: You see a periodic sinusoidal noise waveform in your 100
mS SSEP trace that
shows 6 repeating cycles across the sweep. What is the frequency
of this noise? -
correct answer ✅60 Hz


Question: Aliasing is caused by: -
correct answer ✅Sampling below the Nyquist frequency


Question: If the bin width of your system is 20 uS, then the highest
frequency signal that can