Greyson also wrote the overview of near death experiences for the EncyclopÃ dia Britannica and was the Editor-in-Chief of the Journal of Near-Death Studies from 1982 through 2007 . Greyson wrote the overview of Near Death Experiences for the EncyclopÃ dia Britannica and was the Editor-in-Chief of the Journal of Near-Death Studies ( formerly Anabiosis ) from 1982 through 2007 .