BI 642 Quiz 1

subject Type Homework Help
subject Pages 4
subject Words 774
subject Authors George R. Mangun, Michael S. Gazzaniga, Richard B. Ivry

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1) One pathway through which information about unconditioned or conditioned stimuli
reaches the amygdala is known as the high road and has a cortical component.
2) Neuroeconomics is the field of philosophy that discusses the rights and wrongs of the
treatment or enhancement of the human brain.
3) Phonemes are the smallest units of sound that make a difference to meaning.
4) Paul Ekman argued that the perception of facial expressions of emotion is highly
relative across cultures.
5) Three primary localized regions include face, place, and clothes areas.
6) The hippocampus is considered part of the neocortex.
7) Split-brain patients have a lack of consciousness about their deficits.
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8) The infamous procedure known as the frontal lobotomy was associated most closely
with which of the following periods?
a.18701890
b. 18901910
c.19101930
d. 19301950
9) A person who has difficulty with recency memory tasks would have the most
difficulty with which of the following?
a.remembering a list of items to purchase at the market
b. setting a table with forks, knives, and spoons
c.recognizing the difference between two similar ingredients
d. entering the ingredients for a recipe in the correct order
10) In the delayed nonmatching to sample task, animals are taught in a single trial that a
specific object is associated with a food reward. When this object is shown again in a
subsequent trial in the presence of a new object, the animal
a. must select the old object again to receive a food reward.
b. must select the new item to receive a food reward.
c. must select first the old item, then the new item, to receive a food reward.
d. must select first the new item, then the old item, to receive a food reward.
11) Studies of de-afferentation and its effect on movement control in humans and other
species demonstrate that
a. movement depends on internal mental representations of the consequences of motor
commands.
b. movement depends on the availability of intact sensory feedback from effectors.
c. movement is controlled by information from sensory receptors rather than muscles.
d. movement is controlled differently in humans than in other primate species.
12) Single-cell recording studies of the motor control of reaching movements have
demonstrated that neurons in the motor cortex are selectively active based on the
a. distance through which a reaching movement must pass.
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b. direction in which a reaching movement is generated.
c. speed at which a reaching movement is performed.
d. final arm position achieved once a reaching movement is completed.
13) An anatomical difference between the cerebral hemispheres that may be related to
language lateralization is the enlargement of the __________ in the left hemisphere.
a.hippocampus
b. cingulate gyrus
c. planum temporale
d. primary visual pathway
14) After suffering a focal brain injury, a patient has great difficulty in pantomiming
particular motor actions such as turning a key in a lock. Because other problems like
hemiplegia, muscle weakness, sensory deficits, and lack of motivation have been ruled
out, your diagnosis would be
a. agnosia.
b. apraxia.
c. anomia.
d. akinetopsia.
15) The two main classes of cell in the nervous system are
a. dendrites and axons.
b. axons and neurons.
c. neurons and glial cells.
d. glial cells and dendrites.
16) In myelinated axons, action potentials are generated
a.at the nodes of Ranvier only.
b. along the entire length of the axons.
c.underneath the myelinated portions of the axons only.
d. only at the axon hillocks and axon terminals.
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17) The highest density of , or color-sensitive photoreceptors, can be found in
the__________of the retina.
a. cones ; fovea
b. cones ; periphery
c. rods ; fovea
d. rods ; periphery
18) Imagine that a new drug is discovered that acts by depleting the brain of free
magnesium ions. How would this drug affect long-term potentiation (LTP)?
a. The amount of LTP would increase.
b. The amount of LTP would decrease.
c. The amount of LTP would not change.
d. The amount of LTP would first decrease, then increase.

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