High resolution

Module 10: Figure vasopressin neuron

Control of burst patterning in vasopressin neurons.

This figure illustrates the proposed mechanisms responsible for generating periodic bursts of action potentials that occur every 30–40 s (see bottom inset). The action potentials are located on an elevated plateau potential (white arrow). At the end of the burst, the potential suddenly increases to form the slow after-hyperpolarization (sAHP, red arrow), which then recovers during the interspike interval before the next burst. The inset at the top shows the time course of the first two action potentials of the burst and the corresponding changes in [Ca2+]. See text for further details of the numbered sequence of events. Much of the information shown in this slide was taken from Brown 2004 and Brown and Bourque 2006.