JLE

Epileptic Disorders

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Functional connectivity analysis of patients with temporal lobe epilepsy displaying different ictal propagation patterns Volume 22, numéro 5, October 2020

Figure 1

Bilateral asynchrony. (A) Ictal activity starts at the left frontotemporal region with delta frequency (star) and evolves into theta frequency. (B) Fifteen seconds after onset, an activity occurs at the right frontotemporal region with delta frequency (arrow) showing a frequency difference of more than 1 Hz between the two hemispheres. .

Figure 2

Switch-of lateralization. After several seconds, the ictal discharges lateralizing to the right frontotemporal electrodes show ‘switch-of lateralization’ (arrow).

Figure 3

Region of interests were assigned according to the Automated Anatomical Labelling (AAL) Atlas, as shown with coloured pairs.

Figure 4

(A-D) Seed-based correlation maps between homologous areas. (A) Comparison between patients with temporal lobe epilepsy (TLE) and healthy controls (HCs); (B) Comparison between patients showing unilateral lateralized ictal discharges (non-iPP TLE) and HCs. (C) Comparison between patients with TLE showing unusual ictal propagation patterns (iPP-TLE) and HCs. (D) Comparison between patients with non-iPP TLE and iPP-TLE.