If presynaptic neurons Y and Z are stimulated simultaneously, what change would you expect to occur in the postsynaptic neuron?
A)a single EPSP
B)a single IPSP
C) temporal summation of EPSPs
D) spatial summation of EPSPs

Question

Quizplus · Accepted Answer

If presynaptic neurons Y and Z are stimulated simultaneously, the postsynaptic neuron would experience a spatial summation of EPSPs, as the depolarizations from the two presynaptic neurons would combine and exceed the postsynaptic neuron's threshold for firing an action potential.

If Presynaptic Neurons Y and Z Are Stimulated Simultaneously, What