19. As you are recording the activity of a neuron, you observe two EPSPs produced by different synaptic terminal. This is an example of ................... * probably temporal summation probably spatial summation probably both spatial and temporal summation. probably only algebraic summation.
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This is an example of spatial summation, as the potentials are being summed from different locations on the neuron. Show more…
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What is temporal summation? A process during which a presynaptic action potential triggers a small EPSP in a postsynaptic neuron A process during which the same synapse fires action potentials in quick succession and individual EPSPs add together A process during which two or more presynaptic inputs are active at the same time, triggering a small EPSP in a postsynaptic neuron
Keemin L.
Watch this video (http://openstaxcollege.org/l summation) to learn about summation. The process of converting electrical signals to chemical signals and back requires subtle changes that can result in transient increases or decreases in membrane voltage. To cause a lasting change in the target cell, multiple signals are usually added together, or summated. Does spatial summation have to happen all at once, or can the separate signals arrive on the postsynaptic neuron at slightly different times? Explain your answer.
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