EEG BOARD PREP EXAM WITH 100%
CORRECT ANSWERS 2025- 2026
The function of a differential amplifier is to correct answers >>
b. amplify the difference in electrical potential between 2 inputs
THE DESIRABLE CHARACTERISTICS OF A DIFFERENTIAL AMPLIFIER
IN WHICH LIKE SIGNALS ARE CANCELLED IS CALLED WHAT?
correct answers >> COMMON MODE REJECTION
We are able to record EEG signals that are very low in amplitude
in the midst of 60Hz noise in the environment because of
correct answers >> OF THE CHARACTERISTICS OF COMMON
MODE REJECTION IN THE DIFFERENTIAL AMPLIFIER
A surface negative wicket-type rhythm of 9 Hz (plus or minus 2
Hz) found in the
central head regions is know as correct answers >> MU
RHYTHM
What occipital pattern can be elicited by having the patient scan
a complex image? correct answers >> LAMBDA
,WHEN SLEEP SPINDLES ARE PRECEDED BY SHARP SLOW WAVES
THAT CAN BE ELICITED BY SOUND THEY ARE CALLED? correct
answers >> K COMPLEXES
IT IS COMMON FOR A DEFECT IN THE SKULL EITHER FROM
SURGERY OR INJURY TO PRODUCE WHICH OF THE FOLLOWING?
correct answers >> BREACH RHYTHM
ABNORMALLY HIGH CONCENTRATION OF CALCIUM IN THE BLOOD
IS CALLED? correct answers >> HYPERCALCEMIA
Rare & fatal neurological disorder presenting clinically with
cognitive changes, followed by behavioral change then myoclonic
jerks followed by severe dementia with a characteristic EEG
pattern consisting of periodic short interval diffuse discharges at a
rate of 0.5 to 1.0 seconds. correct answers >> CRUTZFELDT-
JAKOB DISEASE
Rare & fatal neurological disorder, thought to be associated with
measles virus, usually developing in children or adolescents with
progressive dementia, myoclonic jerks and seizures with a
characteristic EEG pattern of diffuse periodic complexes seen
early in the development of the disease and having a long interval
between complexes from 4-15 seconds. correct answers >>
SUBACUTE SCLEROSING PANENCEPHALITIS
Mu rhythm is blocked by correct answers >> real or imagined
contralateral motor activity
, The EEG amplifier is designed so that when input 1 is more
negative than input 2, the deflection will be correct answers
>> UPWARD
Common Mode Rejection correct answers >> the
characteristic of an amplifier that rejects external interference
WHICH OF THE FOLLOWING IS MOST ATTENUATED BY A LOW
FREQUENCY FILTER OF 1HZ correct answers >> 0.1 HZ
TIME CONSTANT IS DEFINED AS THE TIME REQUIRED TO...
correct answers >> FOR THE DEFLECTION TO FALL (DECAY) TO
67% OF THE PEAK DEFLECTION
An EEG record has 3/sec spike & wave discharges. Both the spike
and the slow wave have voltages of 100uV. If this discharge is
recorded with a LFF of 5Hz and a sensitivity of 10uV/mm, what
would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
d. spike 6mm & wave 6mm correct answers >> SPIKE 10MM,
WAVE 6MM
A HIGH FREQUENCY SETTING OF 35HZ WOULD ATTENUATE 50HZ
MUSCLE ACTIVITY BY APPROXIMATELY WHAT PERCENTAGE?
correct answers >> 40%
CORRECT ANSWERS 2025- 2026
The function of a differential amplifier is to correct answers >>
b. amplify the difference in electrical potential between 2 inputs
THE DESIRABLE CHARACTERISTICS OF A DIFFERENTIAL AMPLIFIER
IN WHICH LIKE SIGNALS ARE CANCELLED IS CALLED WHAT?
correct answers >> COMMON MODE REJECTION
We are able to record EEG signals that are very low in amplitude
in the midst of 60Hz noise in the environment because of
correct answers >> OF THE CHARACTERISTICS OF COMMON
MODE REJECTION IN THE DIFFERENTIAL AMPLIFIER
A surface negative wicket-type rhythm of 9 Hz (plus or minus 2
Hz) found in the
central head regions is know as correct answers >> MU
RHYTHM
What occipital pattern can be elicited by having the patient scan
a complex image? correct answers >> LAMBDA
,WHEN SLEEP SPINDLES ARE PRECEDED BY SHARP SLOW WAVES
THAT CAN BE ELICITED BY SOUND THEY ARE CALLED? correct
answers >> K COMPLEXES
IT IS COMMON FOR A DEFECT IN THE SKULL EITHER FROM
SURGERY OR INJURY TO PRODUCE WHICH OF THE FOLLOWING?
correct answers >> BREACH RHYTHM
ABNORMALLY HIGH CONCENTRATION OF CALCIUM IN THE BLOOD
IS CALLED? correct answers >> HYPERCALCEMIA
Rare & fatal neurological disorder presenting clinically with
cognitive changes, followed by behavioral change then myoclonic
jerks followed by severe dementia with a characteristic EEG
pattern consisting of periodic short interval diffuse discharges at a
rate of 0.5 to 1.0 seconds. correct answers >> CRUTZFELDT-
JAKOB DISEASE
Rare & fatal neurological disorder, thought to be associated with
measles virus, usually developing in children or adolescents with
progressive dementia, myoclonic jerks and seizures with a
characteristic EEG pattern of diffuse periodic complexes seen
early in the development of the disease and having a long interval
between complexes from 4-15 seconds. correct answers >>
SUBACUTE SCLEROSING PANENCEPHALITIS
Mu rhythm is blocked by correct answers >> real or imagined
contralateral motor activity
, The EEG amplifier is designed so that when input 1 is more
negative than input 2, the deflection will be correct answers
>> UPWARD
Common Mode Rejection correct answers >> the
characteristic of an amplifier that rejects external interference
WHICH OF THE FOLLOWING IS MOST ATTENUATED BY A LOW
FREQUENCY FILTER OF 1HZ correct answers >> 0.1 HZ
TIME CONSTANT IS DEFINED AS THE TIME REQUIRED TO...
correct answers >> FOR THE DEFLECTION TO FALL (DECAY) TO
67% OF THE PEAK DEFLECTION
An EEG record has 3/sec spike & wave discharges. Both the spike
and the slow wave have voltages of 100uV. If this discharge is
recorded with a LFF of 5Hz and a sensitivity of 10uV/mm, what
would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
d. spike 6mm & wave 6mm correct answers >> SPIKE 10MM,
WAVE 6MM
A HIGH FREQUENCY SETTING OF 35HZ WOULD ATTENUATE 50HZ
MUSCLE ACTIVITY BY APPROXIMATELY WHAT PERCENTAGE?
correct answers >> 40%
