Electronic processes in generation of nerve excitation

In a frog sciatic nerve stained by very dilute solution of eosin (0.1 mumol/1 minus to 100 mumol/1) and illuminated with a rather intensive light (10,000--100,000 lux), a single electric stimulus elicited not a single response, but a train of spikes. Latency time and reversibility of the effect, threshold concentration, threshold illumination, frequency and full length of train of spikes were investigated in detail. The results of the experiments are in agreement with the theory according to which the generation of action potentials involves electronic processes.