Learning and Memory

1
Learning and Memory

• Practice Questions

2
The Hebb rule states that a synapse will be
strengthened if it repeatedly becomes active ___
the ___ neuron fires.

• a. at the same time presynaptic
• b. soon after presynaptic
• c. about the same time postsynaptic
• d. before postsynaptic

3
NMDA receptors

• a. control calcium ion channels.
• b. are found in highest concentration in the
  mossy fibers of the field CA3.
• c. detect the presence of magnesium.
• d. are blocked by glutamate.

4
Nitric oxide

• a. blocks the effects of calcium.
• b. may increase the number of glutamate
  receptors.
• c. may be produced in the dendritic spines.
• d. lasts for a long time and can diffuse the
  entire length of a postsynaptic axon.

5
The release of ___ from ___ causes neurons in the
auditory cortex ___.

• a. acetylcholine neurons in the nucleus
  basalis to become more sensitive to the auditory
  input they are receiving
• b. glutamate neurons in the medial geniculate
  nucleus of the thalamus to fail to differentiate
  between tones of different frequencies
• c. calcium NMDA receptors to respond more
  vigorously to the presence of nitric oxide
• d. nitric oxide synthase presynaptic neurons
  to increase protein synthesis necessary for
  long-term potentiation

6
The synaptic changes that produce classically
conditioned emotional response occurs in the

• a. substantia nigra and the ventral tegmental
  area.
• b. auditory cortex and the nucleus accumbens.
• c. MGm and the basolateral amygdala.
• d. medial forebrain bundle.

7
The principal nuclei of the basal ganglia are the

• a. caudate nucleus, the putamen, and the globus
  pallidus.
• b. amygdala, the substantia nigra, and the
  putamen.
• c. neostriatum and the substantia nigra.
• d. caudate nucleus, globus pallidus, and
  subthalamic nucleus.

8
Infusion of dopamine or cocaine through a
micropipette __ the rate of firing of CA1
pyramidal neurons if the infusions occurred ___
spontaneous bursts of action potential.

• a. increased during
• b. increased after
• c. decreased during
• d. decreased after

9
Learning and Amnesia

• Coming up next
• Final exam on
• Learning and Memory,
• Chapters 14 15