[1] Aix Marseille Univ, INSERM, INS, UMR S 1106, Marseille, France
[2] CHU Timone, AP HP, Serv Neurophysiol Clin, F-13005 Marseille, France
[3] Scottish Epilepsy Ctr, Glasgow G51 4QD, Lanark, Scotland
[4] Christchurch Hosp, Dept Neurol, Christchurch 8011, New Zealand