According to Lutz, et al (2004), long term Buddhist meditators show: High amplitude power across all EEG bandwidth, as well as high residual correlation in the gamma band using power – power coupling analyses.; Robust gamma-band oscillation and long-distance phase-synchrony during the generation of the nonreferential compassion meditative state.; Excess theta and alpha amplitudes, as well as synchronous bursts of gamma; Low voltage overall EEG, reflecting a nirva kalpha samadhi state (“no mind” state).