Synaptic noise as a source of variability in the interval between action potentials.
D000200:Action Potentials; D000818:Animals; D002415:Cats; D004594:Electrophysiology; D008564:Membrane Potentials; D009046:Motor Neurons / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology*; D013569:Synapses / Q000502:physiology*