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Characteristics of Near-Death Experiences Memories as Compared to Real and Imagined Events Memories

Marie Thonnard, Vanessa Charland-Verville, Serge Brédart, Hedwige Dehon, Didier Ledoux, Steven Laureys, Audrey Vanhaudenhuyse

PLoS One March 27, 2013 DOI: 10.1371/journal.pone.0057620 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Peer reviewed
Sample size 39
Population Coma survivors and age-matched healthy volunteers
Topics Near-death experience
Citations 140
Key findings NDE memories have more phenomenological characteristics than memories of imagined and real events, and more self-referential and emotional information than coma memories.

Abstract

Since the dawn of time, Near-Death Experiences (NDEs) have intrigued and, nowadays, are still not fully explained. Since reports of NDEs are proposed to be imagined events, and since memories of imagined events have, on average, fewer phenomenological characteristics than real events memories, we here compared phenomenological characteristics of NDEs reports with memories of imagined and real events. We included three groups of coma survivors (8 patients with NDE as defined by the Greyson NDE scale, 6 patients without NDE but with memories of their coma, 7 patients without memories of their coma) and a group of 18 age-matched healthy volunteers. Five types of memories were assessed using Memory Characteristics Questionnaire (MCQ--Johnson et al., 1988): target memories (NDE for NDE memory group, coma memory for coma memory group, and first childhood memory for no memory and control groups), old and recent real event memories and old and recent imagined event memories. Since NDEs are known to have high emotional content, participants were requested to choose the most emotionally salient memories for both real and imagined recent and old event memories. Results showed that, in NDE memories group, NDE memories have more characteristics than memories of imagined and real events (p<0.02). NDE memories contain more self-referential and emotional information and have better clarity than memories of coma (all ps<0.02). The present study showed that NDE memories contained more characteristics than real event memories and coma memories. Thus, this suggests that they cannot be considered as imagined event memories. On the contrary, their physiological origins could lead them to be really perceived although not lived in the reality. Further work is needed to better understand this phenomenon.

In the evidence

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  • NDE memories had more phenomenological characteristics than memories of imagined and real events, and more self-referential and emotional content and clarity than coma memories.

    Synthesized

Comparable studies

Other observational and cohort studies on near-death experience, most cited first.

Study Year Design Participants
Near-death experience in survivors of cardiac arrest: a prospective study in the Netherlands Cardiac patients successfully resuscitated after cardiac arrest in ten Dutch hospitals 2001 Prospective cohort study n = 344
Incidence and correlates of near-death experiences in a cardiac care unit Cardiac inpatients at a tertiary care center 2003 Observational cohort n = 1,595
Features of "near-death experience" in relation to whether or not patients were near death Patients who believed they were near death during an illness or after an injury and... 1990 Observational cohort n = 58
The phenomenology of near-death experiences Subjects who reported near-death experiences 1980 Retrospective study n = 78
Near-Death Experiences and the Temporal Lobe Individuals who reported having had a near-death experience during a life-threatening... 2004 Observational cohort

Citations in the library

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