Normalized power variance change between pre-ictal and ictal phase of an epilepsy patient using NAT analysis: A case study. - Yasunori Aoki; Ryouhei Ishii; Masao Iwase; Shunichiro Ikeda; Masahiro Hata; Leonides Canuet; Kaoru Imajo; Mieko Tanaka; Haruyasu Matsuzaki; Toshimitsu Musha; Masatoshi Takeda (EMBC, 2013)