PRACTICE QUESTIONS
1. Which of the following regarding EEG is false?
a. Its measurement relies on volume conduction.
b. It predominantly measures postsynaptic potentials in the cerebral cortex.
c. It is commonly used to measure the activity of a small number of neurons.
d. It is a measure of the spontaneous activity of brain tissue.
e. Both a and d.
2. A lesion in which of the following brain structures would be least likely to have a significant effect on the EEG?
a. Cerebral cortex
b. Thalamus
c. Hypothalamus
d. Cerebellum
e. Reticular activating system
SECTION Il Neurophysiology
3. Which of the following statements is true?
a. A slow-frequency1 high-amplitude EEG is said to be “desynchronized.”
b. The EEG alone is used to confirm brain death.
c. There are some periods of high-frequency, low- amplitude EEG during sleep.
d. The EEG is usually measured in response to the stimulation of a sensory receptor organ.
4. The BSAER requires averaging out the random background EEG activity before it can be observed.
a. True
b. False
5. A brain tumor may cause focal slowing of the EEG from the brain tissue immediately surrounding the tumor.
a. True
b. False