How is summation related to IPSPs and EPSPs? What is the difference between temporal summation and spatial
summation? What will be an ideal response?
Concepts to Consider: Individual IPSPs or EPSPs may be subthreshold. However, the effect
they have on the membrane potential are additive. Temporal summation occurs when EPSPs
arrive close together, with the second arriving before the first has decayed. Spatial
summation occurs when the postsynaptic neuron is stimulated by the release of
neurotransmitter from several closely spaced synaptic terminals. When this happens the
postsynaptic neuron is stimulated at several places at the same time
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