Voltage trace (A) and phase plane trajectory
(B) of a rebound depolarization driven by a conditioned
stimulus in a model DCN neuron, following
training with a short interstimulus interval (ISI) of
85 ms. Due to the short ISI, the rebound amplitude is
diminished and the phase plane trajectory does not move
as far into the reliable retrieval zone (red shading)
as with a long ISI value.