electrophysiological techniques including intracellular microelectrode recording of nerve-evoked and spontaneously occurring synaptic potentials , iontophoresis of neurotransmitter , and voltage clamp of presynaptic and postsynaptic membrane ionic current have proven to be especially useful in analyzing the cellular mechanisms by which these toxicants affect neurotransmission .
C1167384
postsynaptic membrane
C0007634
cellular