Figure 5.

Representative slow-wave involvement patterns in a callosotomized (CP05) and a noncallosotomized (NP03) patient with epilepsy. Top, Representative NREM sleep EEG traces(5 s) for two left (F3, P3) and two right (F4, P4) channels and the relative scalp involvement associated with exemplar slow waves. Bottom, The source-reconstructed signal distributions for two representative slow waves. The source modeling has been performed using BrainStorm. A symmetric boundary element method (BEM) was used to define the forward model, while the inverse matrix was computed using the standardized low-resolution brain electromagnetic tomography (sLORETA) constraint. The cortical maps are thresholded at 80% of the maximum signal amplitude.