inhibitory postsynaptic potential


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.
Related to inhibitory postsynaptic potential: excitatory postsynaptic potential

inhibitory postsynaptic potential

[in′hib·ə·tȯr·ē pōst·sə′nap·tik pə′ten·chəl]
(neuroscience)
A transient, graded hyperpolarization of the postsynaptic membrane, mediated by a chemical neurotransmitter, in response to action potentials arriving at the endings of the presynaptic neurons.