Action potentials recorded by fluid electrodes.
Using bullfrog's sciatic-peroneal nerve, action potentials recorded by fluid electrodes were studied under a variety of conditions. Action potential obtained by the adjacent fluid electrodes was diphasic, and its amplitude was directly proportional to the impedance between the fluid electrodes. The number of peaks of action potential was equal to that of the partition between recording fluid electrodes, and the peak latencies were increased in proportion to the distance between both partitions of the adjacent fluid electrodes at the first and at the move positions. These findings suggest that action potentials may be generated wherever the impedance of the conducting medium changes suddenly.
D000818:Animals; D004558:Electric Stimulation; D004566:Electrodes; D005071:Evoked Potentials; D009482:Neurophysiology / Q000295:instrumentation*; D010543:Peroneal Nerve / Q000502:physiology; D011892:Rana catesbeiana; D012584:Sciatic Nerve / Q000502:physiology*