Active direct current (DC) shifts and “Red slow”: two new concepts for seizure mechanisms and identification of the epileptogenic zone

Akio Ikeda, Hirofumi Takeyama, Christophe Bernard, Mitsuyoshi Nakatani, Akihiro Shimotake, Masako Daifu, Masao Matsuhashi, Takayuki Kikuchi, Takeharu Kunieda, Riki Matsumoto, T. Kobayashi, Kazuaki Sato