Fig. 4.
A–C Three types of recovery cycles obtained from the inferior collicular neurons of Eptesicus fuscus. Long inhibition recovery cycle (LI) has a 50% recovery time longer than 20 ms (A). Short inhibition recovery cycle (SI) has a 50% recovery time between 10 and 20 ms (B). Fast recovery cycle (FR) has a 50% recovery time shorter than 10 ms (C). The number and percentage of neurons of each type is shown at each curve. The 50% recovery time for each representative curve is shown by the arrow. Ordinates and abscissas represent percentage recovery and interpulse interval in ms