EPSP
In the Central Nervous System (CNS)
Many inputs from hundreds of other neurons are received by a single neuron which then can form synapses with many thousands of other cells.
Type of Potentials
Among these synapses on a single neuron, some get excited when others get inhibited. In the excitatory synapse, neurotransmitter is released which then causes a small depolarisation within the postsynaptic membrane, naming: excitatory postsynaptic potential (EPSP).
On the other hand, the neurotransmitter which is released from an inhibitory synapse causes a small hyperpolarization called: an inhibitory postsynaptic potential (IPSP)[1].
Reference
- ↑ Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K., and Watson, J.(2005), Molecular Biology of the Cell, 5th edn, Garland.