afterpotential


Also found in: Medical.

afterpotential

[′af·tərpə¦ten·chəl]
(neuroscience)
A small positive or negative wave that follows and is dependent on the main spike potential, seen in the oscillograph tracing of an action potential passing along a nerve.
References in periodicals archive ?
Ca] shows a maximum for a potential (-60 mV) close to the most hyperpolarized value observed during the afterpotential following a burst.
The more rapidly decaying phase of the hyperpolarizing afterpotential following a CG driver potential (Fig.
Modeling the excitability of mammalian nerve fibers: influence of afterpotentials on the recovery cycle.