Simultaneous stimulation at two locations on a cell membrane that leads to an EPSP is an example of:
A) spatial summation.
B) temporal summation.
C) both spatial and temporal summation.
D) neither spatial nor temporal summation.

Question

Quizplus · Accepted Answer

Simultaneous stimulation at two locations on the cell membrane that leads to an EPSP is an example of spatial summation. Spatial summation occurs when multiple presynaptic neurons release neurotransmitters at the same time, leading to the summation of their effects on the postsynaptic neuron. In this case, the two locations on the cell membrane are acting as different presynaptic neurons. Temporal summation occurs when a presynaptic neuron releases neurotransmitters repeatedly over a short period of time, leading to the summation of their effects on the postsynaptic neuron.

Simultaneous Stimulation at Two Locations on a Cell Membrane That