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Electrocorticography and Functional Mapping for CLTM Board Prep Exam
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Electrocorticography and Functional Mapping forCLTM Board Prep Exam
Functional mapping with direct cortical stimulation should always be done with
concurrent electrocorticography:
True or False? - ANSWER True
Structural functional anatomy may be altered by: (choose all that apply)
a. Pressure
b. Plasticity
c. Current
d. Previous lesions - ANSWER a. Pressure
b. Plasticity
c. Current
d. Previous lesions
Phase reversal SEP recordings not only identify the central sulcus but also provide
information about the distribution of motor function on the adjacent exposed cerebral
structures.
True or False? - ANSWER False
The neurosurgeon Dr Paul Broca in 1861 localized the area of expressive speech by:
a. Teaching laboratory animals
b. Performing the first EP studies in humans
c. Using direct cortical stimulation during surgery
d. Following a patient with expressive aphasia and then performing an autopsy after the
patient's death
,d. Summation of findings from CT, MRI, and fMRI - ANSWER d. Long-term observation of
a patient with expressive aphasia and an autopsy, after the patient died
Formation of new neuronal connections because of new learning opportunities or brain
abnormalities or when a normal functioning hemisphere takes over functions of the
abnormal side is termed:
a. Cortical dysplasia
b. Mirror focus
c. Secondary bilateral synchrony
d. Neuroplasticity - ANSWER d. Neuroplasticity
Which occluded vessel is most likely to be associated with a stroke?
a. Right external carotid
b. Right common carotid
c. Right middle cerebral artery
d. Right posterior communicating artery - ANSWER Right middle cerebral artery
An assessment of cognitive function, reasoning, problem solving, expressive language,
long and short term memory, attention, processing speed, visual and spacial
organization, and visual motor skills is called:
a. fMRI
b. A neuropsychological evaluation
c. SPECT and PET scans
d. MRI and CT - ANSWER b. A neuropsychological evaluation
Which of the following are part of an Epilepsy Surgery Evaluation? (select all that apply)
-Neuropsychology
-MRI and CT
-Wada Test: Sodium Amobarbital
, -Video EEG monitoring
-Epilepsy conference
-EMG and Nerve conduction studies
-MEG
-SPECT and PET scans - ANSWER -Neuropsychology
-MRI and CT
-Wada Test: Sodium Amobarbital
-Video EEG monitoring
-Epilepsy conference
-MEG
-SPECT and PET scans
Which of the following modalities is LEAST useful to monitor during a middle cerebral
artery aneurysm?
a. Surface EEG
b. Cortical EEG
c. Upper extremity SSEP
d. Brainstem Auditory Evoked Responses (BAER) - ANSWER d. Brainstem Auditory
Evoked Responses (BAER)
Which of the following new imaging techniques help in the placement of ECoG
electrodes?
a. Ultrasound and standard X-Rays
b. Contrast MRI and CT scans
c. Digital photographs and MEG
d. Fusion of functional SPECT and PET scans and structural MRI - ANSWER d. Fusion of
functional SPECT and PET scans and structural MRI
How does ECoG activity differ from scalp recorded EEG? (select all that apply)
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