Intrinsic brain activity in altered states of consciousness: how conscious is the default mode of brain function?

Boly, Mélanie; Phillips, Christophe; Tshibanda, Luaba; Vanhaudenhuyse, Audrey; Schabus, M.; Dang Vu, Thien Thanh; Moonen, Gustave; Hustinx, Roland; Maquet, Pierre; Laureys, Steven;
2008