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Spacial Summation Occurs Epsps Generated Multiple Presynaptic Neurons

Spatial summation occurs when multiple excitatory postsynaptic potentials (EPSPs) generated simultaneously by different presynaptic neurons reach the threshold for an action potential.

Spatial summation occurs when multiple excitatory postsynaptic potentials (EPSPs) generated simultaneously by different presynaptic neurons reach the threshold for an action potential.

Front spacial summation
Back occurs when EPSPs are generated from multiple presynaptic neurons simultaneously to reach threshold 

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