Different consequences of the long distance correlation changes in temporal lobe seizures. (a) Time frequency representation of EEG correlation changes after stimulation of the rhinal cortex (RC) inducing «déjà vu» (left, DV+) and stimulation not inducing «déjà vu» (right, DV-). DV + stimulation is associated with an increased correlation of signals between RC and hippocampus (Hip) predominant in theta frequency sub-band (adapted from ). (b) In patients with musical verbal production (humming) during seizures, coherence estimation of SEEG signals disclosed high coherence between prefrontal cortex and the first temporal gyrus coincident with humming occurrence (adapted from ). (c) Schematic spatial representation of synchrony changes in TLE seizures with loss of consciousness compared to seizures without loss of consciousness. Significant changes in synchrony values (ETSI: extra-temporal synchrony index) are observed in extra-temporal cortex and particularly between thalamus and parietal cortex. In lower part: Relationship between synchrony values values (ETSI) and the loss of consciousness estimated by the “seizure consciousness scale” (CSS). This relation follows a sigmoid curve suggesting a non-linear bistable function for cousciousness(adapted from ).