Answer: False
Step-by-step explanation:
Spatial summation is the type of summation that occur when more than one stimuli originates excitatory postsynaptic potential (EPSP) at different location simultaneously when they corelate together.
Spatial summation is basically effect of the triggering potential response of the neuron from more than one postsynaptic. This summation basically occur between the neurons.
When all the excitatory postsynaptic potential are subthreshold then, the reach the neurons individually.