Summation

Question 1

What happens when one EPSP is not strong enough to cause an AP

Answer 1

EPSPs can be summed

Question 2

What is temporal summation

Answer 2

the same presynaptic neuron stimulates the postsynaptic neuron multiple times in a brief period. The depolarisation resulting from the combination of all the EPSPs may be able to cause an AP

Question 3

what is spatial summation

Answer 3

multiple nerves all stimulate a postsynaptic neuron resulting in a combination of EPSPs which may yield an AP