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Epileptiform discharges in benign focal epilepsy of childhood Volume 2, supplement 4, Supplément 1, Décembre 2000


   
  

Figure 1. EEG (transverse montage) of a 9 year-old boy with 2 generalized motor seizures during sleep over a one year period. Neurological and developmental assessments were normal. EEG shows BFED with typical morphology represented synchronously over both temporal regions.




   
   Figure 2. EEG from figure 1 represented in a referential montage (P4 reference) demonstrating maximum negativity over both temporal regions with a relative frontocentral positivity. Note the constant synchronous expression of the discharges.



   
   Figure 3. Close-up view of EEG from figure 2 demonstrating the synchronous bitemporal discharge.



   
   Figure 4. Topographic plot of a synchronous discharge showing maximum negativity bitemporally and maximum positivity frontocentrally. Note that there is no evidence of conduction of the discharges across the frontal or central electrodes.