inhibitory postsynaptic potential

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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.
References in periodicals archive ?
First of all, it is necessary to match the data on the duration of inhibitory postsynaptic potentials (IPSP), ranging from milliseconds to tens of milliseconds, with the data on the duration of the internal inhibition process, ranging from several seconds to several minutes.
The amplitude of pharmacologically isolated late inhibitory postsynaptic potentials (IPSPs) evoked in CA 1 pyramidal neurons was reduced by NE.
In another study, GABA hyperpolarized the sternal arterial valve and masked inhibitory postsynaptic potentials (IPSPs) arising from inhibitory nerve stimulation (Kuramoto et al.