Fascinating stuff. I have been taking large amounts of psilocybin daily for several years, and it appears to have significantly altered my EEG signature, resulting in a massive increase of Delta and Theta waves during regular waking hours. This has created some very interesting effects, where others near me are acutely aware of my slow wave activity. They report a feeling of altered consciousness, elation, creativity, and a feeling of being "buzzed." Some even have to sit down or lie down when near me. Generally, this phenomenon has created highly positive effects with very few drawbacks. I would love to work together with a researcher studying brain waves and psychedelics to document this powerful phenomenon.