The recurring features
Across the documented cases, a recurring feature-set keeps appearing: a felt separation from the body, often with veridical-seeming perception of the resuscitation room from above; a journey through a tunnel or boundary; an encounter with a being or presence felt as overwhelmingly loving; a non-judgemental life review experienced from the perspective of others affected; a sense of being given a choice (or being told) to return; and a stable post-experience shift in values toward less materialism, less fear of death, and greater interpersonal warmth.
Research streams
Bruce Greyson's NDE Scale (1983) gave the field a standardised measurement instrument. Pim van Lommel's prospective Dutch cardiac-arrest study (published in The Lancet, 2001) was the first large prospective study to find no clear correlation between the depth of cardiac arrest and the depth of the experience. Sam Parnia's AWARE I and AWARE II studies have continued the prospective approach. The data does not adjudicate between competing metaphysical interpretations, but it makes the hallucination during oxygen deprivation hypothesis harder to defend than it once was.
Anita Moorjani in the index
Anita Moorjani's 2006 NDE — during late-stage lymphoma — produced both an unusual physical recovery and a now-substantial body of teaching work. Her account is unusual in the field for its specificity (a felt understanding of why she had developed the cancer) and for the duration of the post-experience teaching life that has followed. Her contributions to the index are primarily the framing of the felt continuation of love and connection across the boundary.
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