A self-referential default brain state: patterns of coherence, power, and eLORETA sources during eyes-closed rest and Transcendental Meditation practice. - Fred Travis; David A. F. Haaga; John Hagelin; Melissa Tanner; Alarik Arenander; Sanford Nidich; Carolyn Gaylord-King; Sarina Grosswald; Maxwell Rainforth; Robert H. Schneider (Cogn. Process., 2010)