 He has coauthored studies of the personality, abilities and psychological characteristics of children who claim memories of a previous life in Sri Lanka, comparing them with paired children who did not claim such memories.Erlendur received the Outstanding Career Award from the Parapsychological Association and the Myers Memorial Award from the Society for Psychical Research.His 2005 book "Látnir í heimi lifenda" (English translation "The Departed Among the Living", 2012) describes surveys and follow-up investigations he conducted into alleged apparitions and related phenomena in Iceland.