EEG BOARD CERTIFICATION EVALUATION
2026 181 FULL QUESTIONS AND SOLUTIONS
100 PERCENT VERIFIED ANSWERS
PREMIUM STUDY RESOURCE GRADED A+
⩥ What are the 5 High Frequency Filters? Answer: 70, 50, 35, 17, or 12
Hz
⩥ What is the most common HFF and why? Answer: -70 Hz
-Because it allows more high frequencies in and does not distort the
EEG as much as the other filters
-50 or 35 Hz will reduce muscle and 60 Hz artifact, but also dramatically
changes other frequencies
⩥ Phase Shift. Answer: -Passing the signal through a filter causes a
frequency-dependent delay in the waveform
-Higher LFF setting will cause slow waves to shift earlier in time
-Lowering the HFF setting will result in the peak of the wave occurring
later
⩥ 60 Hz or Notch Filter. Answer: -Notch or 60 Hz filter should be OFF
,-Attempts should be made to reduce electrical noise by unplugging
equipment and ensuring proper electrode application, and
checking/fixing impedances
⩥ ECI Recording and Guidelines. Answer: -A full component of scalp
electrodes should be used
-Interelectrode impedances should be less than 10,000 Ohms, but greater
than 100 Ohms
-The integrity of the entire system should be tested
-Montages for ECI interpretation should include electrode pairs at least
10cm apart
-Sensitivity must be increased to a maximum of 2 uV/mm for at least 30
minutes of the recording
-Filter settings should be appropriate
-Additional monitoring techniques should be used when necessary to
clarify the record
-There should be no EEG reactivity to intense somatosensory, auditory,
or visual stimuli
-Recordings should only be performed by a qualified technologist
-A repeat EEG should be performed if ECI is in doubt.
⩥ What ACNS Guideline refers to ECI Recording and Guidelines?.
Answer: Guideline 6
,⩥ Sensitivity Equation. Answer: S=V/A or S=V/H
⩥ Voltage Equation. Answer: V=S*A or V=S*H
⩥ Amplitude Equation. Answer: A (or H) =V/S
⩥ What is a Time Constant?. Answer: -Defined as the time in seconds it
takes for a square wave to decay to 37%
-Time constant usually refers to the decay time constant (LFF) but could
possibly be used to describe rise constant (HFF)
-Determined by the values of the resistor and capacitor (T=RxC)
⩥ What are Automatisms?. Answer: Stereotyped, repetitive movements
such as picking at clothing, lip smacking, and chewing
⩥ What were Temporal Lobe Seizures previously called and how are
they now classified as?. Answer: -They used to be called Psychomotor
seizures
-Now classified as complex partial seizure
⩥ What are prodromal symptoms/aura?. Answer: -Gustatory (taste of
metal)
-Olfactory (smell burning of rubber)
-Illusion
, -Hallucinations
-Deja vu
-Jamais vu
⩥ What is an illusion?. Answer: The distorted perception of an object
-Micropsia (an elephant looks as small as an ant)
-Macropsia (child looks as big as a giant
⩥ What is a hallucination?. Answer: -The perception of nonexisting
objects
-Can be visual, auditory, olfactory or gustatory
⩥ What is deja vu?. Answer: When unfamiliar objects or experiences
seem familiar
⩥ What is Jamais vu?. Answer: Familiar objects or experiences seem
unfamiliar
⩥ What is ideation symptomatology?. Answer: sudden, forced thought
processes
⩥ What is affective symptomology?. Answer: Comprises states of
extreme sadness or pleasure
2026 181 FULL QUESTIONS AND SOLUTIONS
100 PERCENT VERIFIED ANSWERS
PREMIUM STUDY RESOURCE GRADED A+
⩥ What are the 5 High Frequency Filters? Answer: 70, 50, 35, 17, or 12
Hz
⩥ What is the most common HFF and why? Answer: -70 Hz
-Because it allows more high frequencies in and does not distort the
EEG as much as the other filters
-50 or 35 Hz will reduce muscle and 60 Hz artifact, but also dramatically
changes other frequencies
⩥ Phase Shift. Answer: -Passing the signal through a filter causes a
frequency-dependent delay in the waveform
-Higher LFF setting will cause slow waves to shift earlier in time
-Lowering the HFF setting will result in the peak of the wave occurring
later
⩥ 60 Hz or Notch Filter. Answer: -Notch or 60 Hz filter should be OFF
,-Attempts should be made to reduce electrical noise by unplugging
equipment and ensuring proper electrode application, and
checking/fixing impedances
⩥ ECI Recording and Guidelines. Answer: -A full component of scalp
electrodes should be used
-Interelectrode impedances should be less than 10,000 Ohms, but greater
than 100 Ohms
-The integrity of the entire system should be tested
-Montages for ECI interpretation should include electrode pairs at least
10cm apart
-Sensitivity must be increased to a maximum of 2 uV/mm for at least 30
minutes of the recording
-Filter settings should be appropriate
-Additional monitoring techniques should be used when necessary to
clarify the record
-There should be no EEG reactivity to intense somatosensory, auditory,
or visual stimuli
-Recordings should only be performed by a qualified technologist
-A repeat EEG should be performed if ECI is in doubt.
⩥ What ACNS Guideline refers to ECI Recording and Guidelines?.
Answer: Guideline 6
,⩥ Sensitivity Equation. Answer: S=V/A or S=V/H
⩥ Voltage Equation. Answer: V=S*A or V=S*H
⩥ Amplitude Equation. Answer: A (or H) =V/S
⩥ What is a Time Constant?. Answer: -Defined as the time in seconds it
takes for a square wave to decay to 37%
-Time constant usually refers to the decay time constant (LFF) but could
possibly be used to describe rise constant (HFF)
-Determined by the values of the resistor and capacitor (T=RxC)
⩥ What are Automatisms?. Answer: Stereotyped, repetitive movements
such as picking at clothing, lip smacking, and chewing
⩥ What were Temporal Lobe Seizures previously called and how are
they now classified as?. Answer: -They used to be called Psychomotor
seizures
-Now classified as complex partial seizure
⩥ What are prodromal symptoms/aura?. Answer: -Gustatory (taste of
metal)
-Olfactory (smell burning of rubber)
-Illusion
, -Hallucinations
-Deja vu
-Jamais vu
⩥ What is an illusion?. Answer: The distorted perception of an object
-Micropsia (an elephant looks as small as an ant)
-Macropsia (child looks as big as a giant
⩥ What is a hallucination?. Answer: -The perception of nonexisting
objects
-Can be visual, auditory, olfactory or gustatory
⩥ What is deja vu?. Answer: When unfamiliar objects or experiences
seem familiar
⩥ What is Jamais vu?. Answer: Familiar objects or experiences seem
unfamiliar
⩥ What is ideation symptomatology?. Answer: sudden, forced thought
processes
⩥ What is affective symptomology?. Answer: Comprises states of
extreme sadness or pleasure
