ADVANCED CLINICAL NEUROMODULATION
EXAMINATION – COMPREHENSIVE EXAMINATION
MATERIAL
1. Which mechanism best describes the therapeutic effect of deep brain stimulation (DBS) in
Parkinson disease?
A) Irreversible thermal lesioning of the globus pallidus
B) Reversible modulation of pathological neural circuits
C) Direct dopaminergic cell replacement
D) Permanent inhibition of the subthalamic nucleus
Answer: B
Rationale: DBS uses implanted electrodes to deliver adjustable electrical pulses that reversibly modulate
dysfunctional neural circuits rather than destroying tissue.
2. Which DBS target is most commonly used for medication-refractory Parkinson disease tremor?
A) Subthalamic nucleus
B) Globus pallidus interna
C) Ventral intermediate nucleus of the thalamus
D) Anterior nucleus of the thalamus
Answer: C
Rationale: The ventral intermediate nucleus of the thalamus is a well-established target for tremor-
predominant Parkinson disease and essential tremor.
3. Which DBS target is most commonly used for generalized dystonia?
A) Ventral intermediate nucleus
B) Globus pallidus interna
C) Subthalamic nucleus
D) Anterior cingulate cortex
Answer: B
,Rationale: Globus pallidus interna stimulation is the preferred DBS target for primary generalized dystonia
and many focal dystonias.
4. Which DBS target has an FDA humanitarian device exemption for treatment-refractory obsessive-
compulsive disorder?
A) Anterior limb of the internal capsule
B) Ventral intermediate nucleus
C) Subthalamic nucleus
D) Hippocampus
Answer: A
Rationale: DBS of the anterior limb of the internal capsule, often including the ventral capsule/ventral
striatum, has an FDA humanitarian device exemption for severe OCD.
5. Which DBS target is used for drug-resistant epilepsy?
A) Anterior nucleus of the thalamus
B) Globus pallidus interna
C) Ventral intermediate nucleus
D) Pedunculopontine nucleus
Answer: A
Rationale: Anterior nucleus of the thalamus DBS is approved for drug-resistant epilepsy in many regions
and is supported by randomized trial evidence.
6. Which parameter is typically increased first when programming DBS to improve symptom control?
A) Pulse width
B) Frequency
C) Amplitude
D) Impedance
Answer: C
Rationale: Amplitude is usually titrated first because it has the most immediate effect on symptom control,
while monitoring for stimulation-induced adverse effects.
7. Which adverse effect is most associated with subthalamic nucleus DBS?
2
, A) Visual field deficits
B) Impulsive or hypomanic behavior
C) Persistent anosmia
D) Peripheral neuropathy
Answer: B
Rationale: Subthalamic nucleus stimulation can affect limbic and associative circuits, producing impulsivity,
hypomania, or apathy in some patients.
8. Which adverse effect is most associated with globus pallidus interna DBS?
A) Cognitive decline
B) Depression
C) Visual field deficits
D) Seizures
Answer: C
Rationale: The globus pallidus interna lies near the optic tract, so stimulation can cause visual field deficits if
current spreads to nearby structures.
9. Which technique uses a magnetic coil to induce electrical currents in cortical tissue?
A) Vagus nerve stimulation
B) Transcranial magnetic stimulation
C) Spinal cord stimulation
D) Deep brain stimulation
Answer: B
Rationale: Transcranial magnetic stimulation generates a rapidly changing magnetic field that induces
electrical currents in superficial cortical neurons.
10. Which rTMS protocol is FDA-cleared for treatment-resistant major depressive disorder?
A) Continuous theta burst over the right dorsolateral prefrontal cortex
B) High-frequency stimulation over the left dorsolateral prefrontal cortex
C) Low-frequency stimulation over the left motor cortex
D) Bilateral stimulation over the occipital cortex
Answer: B
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EXAMINATION – COMPREHENSIVE EXAMINATION
MATERIAL
1. Which mechanism best describes the therapeutic effect of deep brain stimulation (DBS) in
Parkinson disease?
A) Irreversible thermal lesioning of the globus pallidus
B) Reversible modulation of pathological neural circuits
C) Direct dopaminergic cell replacement
D) Permanent inhibition of the subthalamic nucleus
Answer: B
Rationale: DBS uses implanted electrodes to deliver adjustable electrical pulses that reversibly modulate
dysfunctional neural circuits rather than destroying tissue.
2. Which DBS target is most commonly used for medication-refractory Parkinson disease tremor?
A) Subthalamic nucleus
B) Globus pallidus interna
C) Ventral intermediate nucleus of the thalamus
D) Anterior nucleus of the thalamus
Answer: C
Rationale: The ventral intermediate nucleus of the thalamus is a well-established target for tremor-
predominant Parkinson disease and essential tremor.
3. Which DBS target is most commonly used for generalized dystonia?
A) Ventral intermediate nucleus
B) Globus pallidus interna
C) Subthalamic nucleus
D) Anterior cingulate cortex
Answer: B
,Rationale: Globus pallidus interna stimulation is the preferred DBS target for primary generalized dystonia
and many focal dystonias.
4. Which DBS target has an FDA humanitarian device exemption for treatment-refractory obsessive-
compulsive disorder?
A) Anterior limb of the internal capsule
B) Ventral intermediate nucleus
C) Subthalamic nucleus
D) Hippocampus
Answer: A
Rationale: DBS of the anterior limb of the internal capsule, often including the ventral capsule/ventral
striatum, has an FDA humanitarian device exemption for severe OCD.
5. Which DBS target is used for drug-resistant epilepsy?
A) Anterior nucleus of the thalamus
B) Globus pallidus interna
C) Ventral intermediate nucleus
D) Pedunculopontine nucleus
Answer: A
Rationale: Anterior nucleus of the thalamus DBS is approved for drug-resistant epilepsy in many regions
and is supported by randomized trial evidence.
6. Which parameter is typically increased first when programming DBS to improve symptom control?
A) Pulse width
B) Frequency
C) Amplitude
D) Impedance
Answer: C
Rationale: Amplitude is usually titrated first because it has the most immediate effect on symptom control,
while monitoring for stimulation-induced adverse effects.
7. Which adverse effect is most associated with subthalamic nucleus DBS?
2
, A) Visual field deficits
B) Impulsive or hypomanic behavior
C) Persistent anosmia
D) Peripheral neuropathy
Answer: B
Rationale: Subthalamic nucleus stimulation can affect limbic and associative circuits, producing impulsivity,
hypomania, or apathy in some patients.
8. Which adverse effect is most associated with globus pallidus interna DBS?
A) Cognitive decline
B) Depression
C) Visual field deficits
D) Seizures
Answer: C
Rationale: The globus pallidus interna lies near the optic tract, so stimulation can cause visual field deficits if
current spreads to nearby structures.
9. Which technique uses a magnetic coil to induce electrical currents in cortical tissue?
A) Vagus nerve stimulation
B) Transcranial magnetic stimulation
C) Spinal cord stimulation
D) Deep brain stimulation
Answer: B
Rationale: Transcranial magnetic stimulation generates a rapidly changing magnetic field that induces
electrical currents in superficial cortical neurons.
10. Which rTMS protocol is FDA-cleared for treatment-resistant major depressive disorder?
A) Continuous theta burst over the right dorsolateral prefrontal cortex
B) High-frequency stimulation over the left dorsolateral prefrontal cortex
C) Low-frequency stimulation over the left motor cortex
D) Bilateral stimulation over the occipital cortex
Answer: B
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