Small depolarizations of postsynaptic membrane

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Miniature excitatory postsynaptic potentials are small depolarizations of postsynaptic membrane potential that are observed to occur in the absence of presynaptic action potentials. These miniature potentials are generally the exact same size (i.e. mV) for any given cell. What do these miniature potentials represent biologically? What do they tell us about the mechanism of neurotransmitter release?

Reference no: EM131649472

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