ASET EEG 205 Normal Adult EEG,
Normal Variants & Drug Effects
Neurophysiology is the study of the _______ of the nervous system. -
✔ ✔ Functions
Alpha attenuation refers to ____ . - ✔ ✔ the decrease in alpha
rhythm seen with eye opening
Vertex waves, Spindles and K-Complexes are seen in this sleep stage: -
✔ ✔ N2
High voltage (>75 μV), low frequency (.5-2 Hz) activity are seen in >20 %
of the epoch in this sleep stage: - ✔ ✔ N3
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during a tranistion from sleep to
wakefulness, in children and adolescents, is known as: - ✔ ✔
hypnapomic hypersynchrony
Hypnapomic hypersynchrony is abnormal EEG finding, Hypnagogic
hypersynchrony is an abnormal EEG finding.
Select one:
True
False - ✔ ✔ False
Sleep is considered an activating procedure for recording normal EEG. -
✔ ✔ False
,SREMS are rapid eye movements typically seen 60-90 minutes after
sleep onset during a state of dreaming. - ✔ ✔ False
Normal sleep in adults consists of 90 minute cycles of sleep stages in
this order: - ✔ ✔ Stages NR1, NR2, NR3 and REM
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during sleep onset, in children and
adolescents, is known as: - ✔ ✔ hypnagogic hypersynchrony
Rudimentary Vertex waves are seen in the following sleep stage: - ✔
✔ N1
Muscle tone at the lowest of any stage in the polysomnogram as
detected by chin EMG electrodes in this sleep stage. - ✔ ✔ REM
The simplest and correct way to access the frequency of a wave is to: -
✔ ✔ count how many times it cycles within 1 second
A chain of events leading to depolarization and repolarization of a
neuron is referred to as _____. - ✔ ✔ an action potential
The location of an EEG event is usually best described in therm of the
electrode(s) it involves. - ✔ ✔ True
Epileptiform activity includes the following descriptors: (select all that
apply) - ✔ ✔ spike and wave
sharp wave
spike
polyspike
, There are ______ layers of the cerebral cortex. - ✔ ✔ 6
The duration of an EEG waveform is expressed in ____. - ✔ ✔
milliseconds
After the statement regarding normality or degree of abnormality of
the record, the reasons upon which the conclusion is based should be
briefly listed. When dealing with several types of abnormal features,
the list should be limited to the two or three main ones; the least
characteristic of the record. - ✔ ✔ False
Sleep spindles are seen _____. (select all that apply) - ✔ ✔ are
usually within the beta frequency band
are often seen in Stage II sleep
in the central and frontocentral head regions
Hans Berger's role in the history of electroneurodiagnostics is _____. -
✔ ✔ that he was the first to record the electrical activity of the
human brain
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during a tranistion from sleep to
wakefulness, in children and adolescents, is known as: - ✔ ✔
hypnapomic hypersynchrony
The terms paper speed and chart speed are used interchangeably to
describe scrolling EEG in mm/sec. - ✔ ✔ True
The resting membrane potential of a neuron is _____. - ✔ ✔ -80 mV
Normal Variants & Drug Effects
Neurophysiology is the study of the _______ of the nervous system. -
✔ ✔ Functions
Alpha attenuation refers to ____ . - ✔ ✔ the decrease in alpha
rhythm seen with eye opening
Vertex waves, Spindles and K-Complexes are seen in this sleep stage: -
✔ ✔ N2
High voltage (>75 μV), low frequency (.5-2 Hz) activity are seen in >20 %
of the epoch in this sleep stage: - ✔ ✔ N3
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during a tranistion from sleep to
wakefulness, in children and adolescents, is known as: - ✔ ✔
hypnapomic hypersynchrony
Hypnapomic hypersynchrony is abnormal EEG finding, Hypnagogic
hypersynchrony is an abnormal EEG finding.
Select one:
True
False - ✔ ✔ False
Sleep is considered an activating procedure for recording normal EEG. -
✔ ✔ False
,SREMS are rapid eye movements typically seen 60-90 minutes after
sleep onset during a state of dreaming. - ✔ ✔ False
Normal sleep in adults consists of 90 minute cycles of sleep stages in
this order: - ✔ ✔ Stages NR1, NR2, NR3 and REM
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during sleep onset, in children and
adolescents, is known as: - ✔ ✔ hypnagogic hypersynchrony
Rudimentary Vertex waves are seen in the following sleep stage: - ✔
✔ N1
Muscle tone at the lowest of any stage in the polysomnogram as
detected by chin EMG electrodes in this sleep stage. - ✔ ✔ REM
The simplest and correct way to access the frequency of a wave is to: -
✔ ✔ count how many times it cycles within 1 second
A chain of events leading to depolarization and repolarization of a
neuron is referred to as _____. - ✔ ✔ an action potential
The location of an EEG event is usually best described in therm of the
electrode(s) it involves. - ✔ ✔ True
Epileptiform activity includes the following descriptors: (select all that
apply) - ✔ ✔ spike and wave
sharp wave
spike
polyspike
, There are ______ layers of the cerebral cortex. - ✔ ✔ 6
The duration of an EEG waveform is expressed in ____. - ✔ ✔
milliseconds
After the statement regarding normality or degree of abnormality of
the record, the reasons upon which the conclusion is based should be
briefly listed. When dealing with several types of abnormal features,
the list should be limited to the two or three main ones; the least
characteristic of the record. - ✔ ✔ False
Sleep spindles are seen _____. (select all that apply) - ✔ ✔ are
usually within the beta frequency band
are often seen in Stage II sleep
in the central and frontocentral head regions
Hans Berger's role in the history of electroneurodiagnostics is _____. -
✔ ✔ that he was the first to record the electrical activity of the
human brain
A pattern of dramatic high voltage, diffuse theta-delta that occurs in
bursts over a few seconds during a tranistion from sleep to
wakefulness, in children and adolescents, is known as: - ✔ ✔
hypnapomic hypersynchrony
The terms paper speed and chart speed are used interchangeably to
describe scrolling EEG in mm/sec. - ✔ ✔ True
The resting membrane potential of a neuron is _____. - ✔ ✔ -80 mV
