Which statement is true of long-term depression (LTD)?
A. LTD is associated with an increase in the number of AMPA receptors in the postsynaptic neurons.
B. LTD reflects a gradual strengthening of synaptic connections.
C. LTD is associated with a decrease in the number of AMPA receptors in the postsynaptic neuron.
D. LTD can be produced by high-frequency stimulation of CA1 neurons.
Answer: C
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