AUTHOR=Carhart-Harris Robin , Nutt David TITLE=Was it a vision or a waking dream? JOURNAL=Frontiers in Psychology VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2014.00255 DOI=10.3389/fpsyg.2014.00255 ISSN=1664-1078