JLE

Epileptic Disorders

MENU

Spatiotemporal profiles of focal and generalised spikes in childhood absence epilepsy Volume 15, issue 1, March 2013



Figure 1 Raw EEG traces of the events analysed in this CAE study. (A) Interictal focal discharge over the right frontal (F4) area. (B) Interictal focal discharge over the occipital (O1, O2) areas. (C) Single generalised interictal discharge. (D) Generalised SWD with focal discharges over the left frontal (F3) region (arrows), immediately before the onset of generalisation (pre-generalisation spikes).



Figure 2 EEG waveform averages and spatiotemporal profiles in Patient 1. The seven distinct types of discharge (A-G) are represented in order of abundance, with (A) the most abundant.



Figure 3 EEG waveform averages and spatiotemporal profiles of focal discharges before generalised SWDs in Patient 1. The five distinct types of discharge (A-E) are represented in order of abundance, with (A) the most abundant.



Figure 4 EEG waveform averages and spatiotemporal profiles of single generalised interictal discharges (A-C) and first generalised spike of the SWD sequence (D and E) in Patient 1. The three distinct types of discharge (A-C) are represented in order of abundance, with (A) the most abundant. For (D) and (E), the discharge in (D) was more abundant than that in (E).



Figure 5 2D diagram relating pre-generalisation focal SWDs to the first generalised spike of the “led-in”, sustained, 3-Hz SWD. The diameters of the circles are proportional to the number of discharges.