EEG MASTERY LAB · OFFLINE POWERPOINT
Question Bank 01
30 questions · matched answer slides · clinical rationales
Advance one slide to reveal each answer. Full source rationales are preserved in the
answer-slide notes.
,QUESTION 1 · Medium · SOURCE 001
In the following recording what rhythm is recognized?
A. Alpha rhythm
B. Beta rhythm
C. Mu rhythm
D. Theta rhythm
EEG MASTERY · BANK 01 · QUESTION 1/30
,ANSWER 1 · SOURCE 001
In the following recording what rhythm is recognized?
A. Alpha rhythm
CLINICAL RATIONALE
Alpha, beta, theta, and mu rhythms are normal EEG waveforms that differ in their frequency, location, physiologic significance, and response to activation. The alpha
rhythm (8-13 Hz) is the normal posterior dominant rhythm observed over the occipital regions during relaxed wakefulness with the eyes closed and typically attenuates
with eye opening or increased visual attention. Beta activity (13-30 Hz) consists of low- amplitude, fast-frequency waves that are most prominent over the frontal and
central regions and is associated with alertness, active cognitive processing, and the effects of medications such as benzodiazepines and barbiturates. Theta activity (4-
7 Hz) is commonly seen during drowsiness, light sleep, and in healthy children but, when persistent during wakefulness in adults, may indicate diffuse or focal cerebral
dysfunction depending on its distribution. Although the mu rhythm shares the same frequency range as alpha (8-13 Hz), it originates from the sensorimotor cortex, is
maximal over the central electrodes (C3 and C4), has a characteristic arch-shaped morphology, and is suppressed by voluntary movement, motor imagery, or
somatosensory stimulation rather than by eye opening. Recognizing these distinguishing features is essential for accurate EEG interpretation and for differentiating
normal physiologic rhythms from abnormal cerebral activity.
EEG MASTERY · BANK 01 · ANSWER 1/30
, QUESTION 2 · Medium · SOURCE 002
In the following recording, what does the arrow point to?
A. Epileptiform sharp waves
B. Vertex waves
C. K complex
D. Polyspikes
EEG MASTERY · BANK 01 · QUESTION 2/30
Question Bank 01
30 questions · matched answer slides · clinical rationales
Advance one slide to reveal each answer. Full source rationales are preserved in the
answer-slide notes.
,QUESTION 1 · Medium · SOURCE 001
In the following recording what rhythm is recognized?
A. Alpha rhythm
B. Beta rhythm
C. Mu rhythm
D. Theta rhythm
EEG MASTERY · BANK 01 · QUESTION 1/30
,ANSWER 1 · SOURCE 001
In the following recording what rhythm is recognized?
A. Alpha rhythm
CLINICAL RATIONALE
Alpha, beta, theta, and mu rhythms are normal EEG waveforms that differ in their frequency, location, physiologic significance, and response to activation. The alpha
rhythm (8-13 Hz) is the normal posterior dominant rhythm observed over the occipital regions during relaxed wakefulness with the eyes closed and typically attenuates
with eye opening or increased visual attention. Beta activity (13-30 Hz) consists of low- amplitude, fast-frequency waves that are most prominent over the frontal and
central regions and is associated with alertness, active cognitive processing, and the effects of medications such as benzodiazepines and barbiturates. Theta activity (4-
7 Hz) is commonly seen during drowsiness, light sleep, and in healthy children but, when persistent during wakefulness in adults, may indicate diffuse or focal cerebral
dysfunction depending on its distribution. Although the mu rhythm shares the same frequency range as alpha (8-13 Hz), it originates from the sensorimotor cortex, is
maximal over the central electrodes (C3 and C4), has a characteristic arch-shaped morphology, and is suppressed by voluntary movement, motor imagery, or
somatosensory stimulation rather than by eye opening. Recognizing these distinguishing features is essential for accurate EEG interpretation and for differentiating
normal physiologic rhythms from abnormal cerebral activity.
EEG MASTERY · BANK 01 · ANSWER 1/30
, QUESTION 2 · Medium · SOURCE 002
In the following recording, what does the arrow point to?
A. Epileptiform sharp waves
B. Vertex waves
C. K complex
D. Polyspikes
EEG MASTERY · BANK 01 · QUESTION 2/30
