FIG. 9.

Poly-spike-and-waves. Upper panel: Electroencephalogram (30-sec epoch, low-frequency filter 0.5 Hz, high-frequency filter 100.0 Hz) showing poly-spike-and-waves after lateral fluid-percussion injury. No clear ictal behavior was associated with the activity. Lower panel: A heat map from the same epoch, showing the poly-spike and wave power profile. Note that poly-spikes-and-waves were generalized as being present both parietally (C3, C4) and occipitally (O1, O2). Color image is available online.