BIOL 897

subject Type Homework Help
subject Pages 3
subject Words 643
subject Authors George R. Mangun, Michael S. Gazzaniga, Richard B. Ivry

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1) According to Warringtons model, patients with left posterior lesions should be
particularly impaired in
a. recognizing the visually invariant properties of objects.
b. linking functionally associated visual inputs.
c. matching different views of an object as representing the same item.
d. segmenting a complex drawing into its component parts.
2) Which of the following is true regarding the amygdala and emotional learning?
a. The amygdala plays a role in the expression of fear responses, regardless of whether
the initial learning was implicit or explicit.
b. The amygdala plays a role in the expression of fear responses only when the initial
learning was implicit.
c. The amygdala plays a role in the expression of fear responses only when the initial
learning was explicit.
d. The amygdala does not play a role in the expression of fear responses but does play a
role in their acquisition.
3) As a complex system,neurons are to the brain as__________is/areto.
________________
a.ants ; an ant colony
b.an ant colony ; ants
c.an ant ; another ant
d.another ant ; an ant
4) If you inserted a micropipette into a neuron without harming the cell, and pumped in
a small quantity of calcium ions, each of which carried two positive charges, how
would this affect the membrane potential?
a. The membrane potential would become depolarized relative to the resting potential.
b. The membrane potential would become hyperpolarized relative to the resting
potential.
c. There would be no change because calcium does not contribute to the resting
potential.
d. There would be no change because the sodiumpotassium pump would remove excess
calcium from the cell.
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5) The term saltatory conduction refers to the fact that
a.action potentials travel faster when extracellular salt concentration is high.
b.action potentials evoked by strong stimuli travel faster than those evoked by weaker
stimuli.
c.action potentials occur only at the nodes of Ranvier of axons.
d. action potentials are generated only by myelinated portions of axons.
6) The neurotransmitter responsible for translating action potentials into mechanical
actions at muscles is
a. norepinephrine.
b. dopamine.
c. acetylcholine.
d. serotonin.
7) Which of the following is NOT considered a characteristic of emotions?
a. a physiological reaction to a stimulus
b. similarity to moods
c. a feeling
d. a behavioral response
8) Visual information that is presented briefly to the__________ visual field is
processed first by the left half of each retina and then by the __________ hemisphere of
the brain.
a.right ; right
b. right ; left
c.left ; right
d. left ; left
9) The left perisylvian network of language includes which areas?
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a.Brocas area
b. Wernickes area
c.both a and b
d. none of the above
10) Of the following choices, the most anterior portion of the frontal lobesthe prefrontal
cortexis most critical to
a.processing information about pain, touch, and temperature.
b. executive functions.
c.the what visual pathway.
d. the where visual pathway.
11) The neocortex typically contains__________ cortical layers, with __________
typically being the input
a.10 ; layer IV
b. 10 ; layer I
c. 6 ; layer IV
d. 6 ; layer I
12) John spots a snake in the forest. He immediately runs away from it and then notes
that he is scared as he is running. Which of the following theories would suggest that
his feeling of fear directs multiple coordinated cognitive subprograms?
a. cognitive interpretation theory
b. constructivist theories
c. evolutionary theories
d. LeDouxs high road and low road theory

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