EEG EXAM WITH 100%
CORRECT ANSWERS 2025
Electroencephalogram (EEG) correct answers >> a recording
of the rhythmic electrical activity that can be made from the
cerebral cortex via electrodes placed on the skull
How does opening eyes changes the EEG output? correct
answers >> lower amplitude, higher frequency
Alpha rhythm correct answers >> 8-13 Hz, awake relaxed
adult with eyes closed
Beta rhythm correct answers >> 13-30 Hz, awake adult with
open eyes
Theta rhythm correct answers >> 4-7Hx, drowsiness
Delta rhythm correct answers >> .5-4Hz, sleep
paradoxical sleep correct answers >> REM sleep, the EEG
looks almost like the EEG of an awake person
GRADED A+
, what gives the EEG its shape? correct answers >> The waves
are derived from alternating excitatory and inhibitory synaptic
potentials that occur in cortical neurons as a result of
thalamocortical and other inputs.
when awake, are the alternating excitatory and inhibitory
potentials that give the EEG its shape in phase or out of phase?
What about in sleep? correct answers >> Awake- the inputs
are irregular or out of phase
Sleep- in phase, get a larger amplitude EEG
What is the EEG pattern of a patient in a coma? correct
answers >> EEG is dominated by delta activity
what is the EEG patter of a brain dead patient? correct
answers >> sustained flat EEG reading
what is the EEG pattern of a patient with petit mal seizures?
correct answers >> EEG displays spikes and wave activity
what is the EEG activity of a patient with grand mal seizures?
correct answers >> EEG shows widely distributed seizure
activity
what is the EEG activity of a patient with partial seizures?
correct answers >> EEG reveals spikes in the affected areas
GRADED A+
CORRECT ANSWERS 2025
Electroencephalogram (EEG) correct answers >> a recording
of the rhythmic electrical activity that can be made from the
cerebral cortex via electrodes placed on the skull
How does opening eyes changes the EEG output? correct
answers >> lower amplitude, higher frequency
Alpha rhythm correct answers >> 8-13 Hz, awake relaxed
adult with eyes closed
Beta rhythm correct answers >> 13-30 Hz, awake adult with
open eyes
Theta rhythm correct answers >> 4-7Hx, drowsiness
Delta rhythm correct answers >> .5-4Hz, sleep
paradoxical sleep correct answers >> REM sleep, the EEG
looks almost like the EEG of an awake person
GRADED A+
, what gives the EEG its shape? correct answers >> The waves
are derived from alternating excitatory and inhibitory synaptic
potentials that occur in cortical neurons as a result of
thalamocortical and other inputs.
when awake, are the alternating excitatory and inhibitory
potentials that give the EEG its shape in phase or out of phase?
What about in sleep? correct answers >> Awake- the inputs
are irregular or out of phase
Sleep- in phase, get a larger amplitude EEG
What is the EEG pattern of a patient in a coma? correct
answers >> EEG is dominated by delta activity
what is the EEG patter of a brain dead patient? correct
answers >> sustained flat EEG reading
what is the EEG pattern of a patient with petit mal seizures?
correct answers >> EEG displays spikes and wave activity
what is the EEG activity of a patient with grand mal seizures?
correct answers >> EEG shows widely distributed seizure
activity
what is the EEG activity of a patient with partial seizures?
correct answers >> EEG reveals spikes in the affected areas
GRADED A+
