Figure 1.

Effects of bicuculline application and washout on spontaneous bursting activity in the hippocampus and entorhinal cortex. Top traces represent examples of extracellular recordings of bursting activity in the hippocampal CA3 region and EC before, during, and after bicuculline application. Insets represent enlarged parts of the top two traces to show the regularity of the bursting activity (middle traces) as well as the individual bursts with afterdischarges (bottom traces). Bicuculline application is indicated by the gray bar.