The somata of molluscan neurones respond with long trains of spikes to steady injected outward current. During such repetitive firing the maximum rate of rise of action potentials usually decreases as a result of inactivation of the transport mechanism for inward current. Significant inactivation of this transport system does not often change the peak level… (More)
Fig. 10. Effect of preliminary hyperpolarization on repetitive firing in Ringer solution with 15 mM TEA. (a) Repetitive response without preliminary hyperpolarization; (6) effect of hyperpolarization. Resting potential is indicated by dashed line.