Editing Inhibitory postsynaptic potential (section)

== Components ==

===Types===
This system<ref name=neurobook/>  IPSPs can be temporally summed with subthreshold or suprathreshold EPSPs to reduce the amplitude of the resultant postsynaptic potential.  Equivalent EPSPs (positive) and IPSPs (negative) can cancel each other out when summed.  The balance between EPSPs and IPSPs is very important in the integration of electrical information produced by inhibitory and excitatory synapses.

[[Image:IPSPsummation.JPG|thumb|540px|Graph displaying an EPSP, an IPSP, and the summation of an EPSP and an IPSP. When the two are summed together the potential is still below the action potential threshold.]]

===Factors===
The size of the [[neuron]] can also affect the inhibitory postsynaptic potential.  Simple [[temporal summation]] of postsynaptic potentials occurs in smaller neurons, whereas in larger neurons larger numbers of synapses and ionotropic receptors as well as a longer distance from the synapse to the soma enables the prolongation of interactions between neurons.