This might be either an obvious one, or I might be totally off track. I haven't seen, or been able to find neural action potentials being referenced as signal transductions. Aren't they signal transductions? And if not (say if action potential is only referenced to the change in potential), is there at least a name to the synaptic signal transduction process that happen to neurotransmitters that creates action potentials? Hope this is clear enough of a question.