Which best describes temporal summation?
A. It only refers to addition of EPSPs.
B. A synapse is stimulated a second time before the effect of a first stimulus at the synapse has terminated.
C. The size of an EPSP depends on the size of the stimulus.
D. It always brings a postsynaptic cell to threshold.
E. Two synapses on different regions of a cell are stimulated at the same time.
Answer: B
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