| Summation |
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| Temporal
summation- analogous to the frequency |
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| (wave, tetany)
summation in muscle. Many EPSPs |
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| occurring in a
short period of time (e.g. with high |
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| frequency) can
sum to produce threshold |
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| depolarization.
This occurs when high intensity |
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| stimulus
results in a high frequency of EPSPs. |
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| Spatial
summation - analogous to quantal |
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| summation in a
muscle. Many stimuli occurring |
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| simultaneously,their
depolarizations spread and |
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| overlap and can
build on one another to sum and |
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| produce threshold
depolarization. |
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