A postsynaptic change in membrane potential that tends to prevent firing of an action potential in the postsynaptic cell, by bringing the membrane potential away from the threshold potential.
An electrical charge (hyperpolarisation) in the membrane of a postsynaptic neuron caused by the binding of an inhibitory neurotransmitter from a presynaptic cell to a postsynaptic receptor; makes it more difficult for a postsynaptic neuron to generate an action potential.
Graded hyperpolarization induced by neurotransmitter beneath synaptic junction of a neurone. Has inhibitory action on generation of impulses. Integrated with effects of EPSPs. Compare excitatory postsynaptic potential.