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Which of the following is a contrast X-ray technique?


A) angiography
B) magnetoencephalography
C) positron emission tomography
D) structural magnetic resonance imaging
E) functional MRI

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Reversible lesions can be produced by microinjection directly into the target brain structure of a


A) local anesthetic such as lidocaine.
B) a micro knife blade.
C) coolant followed by antifreeze.
D) both A and B
E) both B and C

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In the open-field test, fearful rats are __________, that is, they stay near the walls of the test box.

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Vestibular function can be assessed by assessing a patient's reaction to


A) facial nerve stimulation.
B) electroencephalography.
C) cold water flushed in the ear.
D) needles inserted in the face.
E) needles inserted in the foot.

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The signals in the first few milliseconds of the average auditory evoked potential


A) always originate next to the scalp electrode.
B) are far-field potentials.
C) originate in the sensory nuclei of the brain stem.
D) all of the above
E) both B and C

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In the sodium amytal test, injections are sequentially made into the left and right


A) language areas of the cortex.
B) speech areas of the cortex.
C) carotid arteries.
D) auditory cortex.
E) motor cortex.

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Alpha wave EEG activity is associated with


A) high arousal.
B) sleep.
C) relaxed wakefulness.
D) epilepsy.
E) evoked potentials.

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Intracellular unit recording provides a measure of the __________ potential over time.

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The P300


A) is an EEG wave that often occurs after the presentation of a momentary stimulus meaningful to the volunteer.
B) is a negative EEG wave.
C) is a far-field potential occurring 300 mm from the electrode.
D) occurs about 300 seconds prior to a response.
E) is a component of the potential evoked by a meaningless click.

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If a rat is hurt by a small object in a test chamber containing commercial bedding material, the rat will often __________ the object.

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Repetition priming tests are tests of


A) explicit memory.
B) implicit memory.
C) episodic memory.
D) semantic memory.
E) consolidated memory.

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MEG records


A) the time of particular EEG signals.
B) changes in magnetic fields on the surface of the scalp.
C) the frequency of particular EEG signals.
D) the latency of far-field potentials.
E) the P300.

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Which of the following procedures is not an adaptation of X-ray photography?


A) computed tomography
B) MRI
C) CT
D) angiography
E) both A and C

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In human patients, EEG activity is commonly recorded directly from


A) muscle.
B) the hippocampus.
C) the scalp.
D) the neocortex.
E) the heart.

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The main difference between an average evoked potential (AEP) and a "raw" evoked potential is that


A) an AEP is usually unobservable.
B) an AEP is an alpha wave.
C) a raw evoked potential is often unobservable amidst the random noise of the ongoing EEG signal.
D) an AEP is a unit response.
E) a raw evoked potential is likely to be larger.

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The reason why radioactive 2-DG is useful for revealing the level of activity of neurons in different parts of the brain is that 2-DG


A) is absorbed by neurons in relation to their level of activity.
B) is metabolized by neurons in relation to their level of activity.
C) is not metabolized by neurons.
D) both A and C
E) both A and B

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Reversible brain lesions, if properly done,


A) destroy only those neurons that have been cooled.
B) produce a discrete area of permanent damage.
C) destroy neurons by freezing them.
D) produce no permanent neural damage.
E) eliminate all neural activity in the brain for about 3 hours.

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Signal averaging is commonly used in the recording of ERPs because it reduces the magnitude of


A) large signals.
B) sensory evoked potentials.
C) random signals.
D) the P300.
E) far-field potentials.

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Illustrated here is the Illustrated here is the   A)  Washington Symbols Test. B)  Wisconsin Card-Sorting Test. C)  a classic test of parietal-lobe damage. D)  both A and C E)  both B and C


A) Washington Symbols Test.
B) Wisconsin Card-Sorting Test.
C) a classic test of parietal-lobe damage.
D) both A and C
E) both B and C

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The typical __________ maze contains a hidden escape platform.

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