Figure 2. Intracranial EEG traces from saline- and MSO-infused rats.
Continuous 120 s EEG traces recorded from epidural screw electrodes placed over the left or right parietal cortex are displayed. Thirty seconds of EEG are shown in each horizontal trace. The light gray vertical lines denote intervals of 1 s, and the length of the Y-axis corresponds to 7 mV. Trace A depicts normal EEG activity from a saline-infused (control) rat. Trace B depicts electrographic seizure activity from an MSO-infused rat. Seizure onset in B is marked with an arrow, and seizure offset is marked with an arrowhead.