Learning and Memory
Study Questions
Remember that you should choose only one answer at a time. Learning and Memory 

1. It is critical to demonstrate that activity dependent modifications occur in the hippocampus and neocortex because
 
    1. Otherwise scientists would have nothing to study
    2. these structures are thought to be involved in the storage of explicit memories
    3. it might help explain the studies where rearing in a complex environment increases the number of synapses
    4. it will allow us to understand consciousness
    5. It might help us to understand the mechanisms that underlie developmental plasticity
A. 1, 3
B. 1, 2, 4
C. 1, 2, 3, 5
D. 2, 3, 5
E. 1, 2, 4, 5

2. The first person to suggest that memories might be stored as changes in synaptic strength

A.Cajal
B. Hebb
C. Lashley
D. Beavis
E. Thompson
F. all of the above
G. none of the above

3. (T/F) The fornix is comprised of axons that originate in the septal nuclei, CA1, CA3 and the subiculum.
True
False

4. If recording using extracellular techniques a large 1mV upward deflection of electrical potential signifies that
1. cells are being depolarized due to positive ions flowing into the cell at the level of the recording electrode
2. cells are being hyperpolarized due to negative ions flowing into the cell at the level of the recording electrode
3. there is a problem with your recording equipment.
4. cells are being depolarized due to current flowing into the cell at some point distant from your electrode
all of the above
none of the above

5. What are some of the phenomenon associated with LTP that link it to the formation of memory. A. input specificity
B. it is induced by physiologically relevant stimulation patterns that are seen during learning situations.
C. Co-operativity threshold
D. Order dependence
E. all of the above
F. three of the above
G. none of the above

6. (T/F) An increase in the electrophysiological measure of synaptic efficacy that lasts for at least 3 hours is referred to as facilitation.

True
False

7. (T/F) Synaptic efficacy is the ability of pre synaptic cell to depolarize the post-synaptic cell.

True
False

8. Measuring synaptic efficacy can be done using intracellular recording. In these recordings

A. the activation of AMPA receptors in the dendrites and subsequent influx of sodium will cause a downward deflection of the measured potential.
B. Chloride flowing into the cell at the soma will cause no change in the membrane potential.
C. the activation of AMPA receptors in the dendrites and subsequent influx of sodium will cause an upward deflection of the measured potential.
D. one is recording the activity of many cells at once.
E. none of the above

9. The term plasticity is used to describe

A. changes in synaptic strength induced by the delivery of conditioning stimuli to the pathway used to activate the synapses
B. anatomical changes that are evident during development
C. behavioral changes seen during learning
D. all of the above
E. two of the above
E. none of the above


More Questions
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OAMG 1997