大概在2001年左右,發現部分病人在心跳停止期間仍然有清晰的記憶 http://www.cbsnews.com/stories/2001/06/28/tech/main298885.shtml
「Since the initial experiment, Parnia and his colleagues have found more than 3,500 people with lucid memories that apparently occurred at times they were thought to be clinically dead. Many of the patients, he said, were reluctant to share their experiences fearing they would be thought crazy. 」
但是,到2005年9月份為止這個實驗(在屋頂下放置物品讓靈魂來識別)不算成功: http://news.bbc.co.uk/2/hi/uk_news/magazine/4271018.stm
「His study also involves a novel method of testing if the "self" actually does leave the body during an OBE. Sam has suspended boards below the ceiling and these have images on the upper side. The idea is that if people do look down from above, they may recall the extra information. As yet, no patients have reported seeing these images.
」