In the course of some earlier work, while recording from the surface of isolated muscle fibers, we occasionally noticed a spontaneous discharge of small monophasic action potentials. The potentials varied somewhat in size, but had a very consistent time course, rising rapidly in 1–2 msec, and declining more slowly, to one-half in about 3–4 msec. They were localized at one region of the fibre, and in their shape and spatial spread resembled the end-plate potential... Not much attention was paid to the phenomenon at the time, and it was suspected to be due to local injury...
KeywordsClay Permeability Retina Autocorrelation Acetylcholine
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