Synaptic frequency demodulation.
D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D066298:In Vitro Techniques; D009469:Neuromuscular Junction / Q000502:physiology*; D011898:Ranidae; D013569:Synapses / Q000502:physiology*; D009435:Synaptic Transmission