Shared-death experiences: the witness who is not dying

A shared-death experience is an account given by someone present at another person's death, describing elements normally reported by the dying: light, a sense of leaving the body, a tunnel, or an impression of accompanying the dying person part of the way.

The term was popularised by Raymond Moody, who also coined near-death experience. The accounts have since been collected more systematically, notably by William Peters and colleagues.

Why they are interesting

Because the standard explanations for near-death experiences do not apply.

The physiological account of NDEs is reasonably strong: cerebral hypoxia, changes in neurotransmitter activity, temporal lobe effects, and the disinhibition that occurs as a brain shuts down. Add anaesthetic agents and analgesics and you have a set of mechanisms capable of producing what is reported.

A bystander at a deathbed is not hypoxic, not medicated, and not dying. Whatever produces the experience in them is not what produces it in the patient.

What weakens the case

Everything about how the accounts are gathered.

They are retrospective, often collected years after the event. They are self-selected — people who had an unusual experience come forward, and people who sat at a deathbed and felt nothing do not.

There is no denominator. Without knowing how many deathbed vigils produce nothing, a collection of striking accounts says nothing about frequency.

And bereavement is among the most powerful states a person can be in. Grief reliably produces vivid perceptual experiences — hearing a voice, sensing a presence — which are common, well documented, and not usually interpreted as anything other than grief.

What bereavement hallucinations are

The comparison case is important and it is not a slight.

Perceptual experiences of the dead are common in bereavement. Surveys have found substantial proportions of widowed people reporting a sense of presence, hearing a voice, or seeing the person who has died.

They are not associated with mental illness. They occur in psychologically healthy people, are often comforting, and are regarded in clinical practice as a normal feature of grief.

What a hospice study would need

Consent taken in advance from families, a structured interview administered to every attending relative within days rather than years, and publication of the proportion reporting nothing. Palliative care research routinely handles questions this sensitive. The obstacle is not ethics or feasibility — it is that nobody with the access has chosen to run it.

What would settle it

A prospective study. Recruit people expecting to attend a death, gather structured accounts immediately afterwards from everyone, and count the negatives.

That is feasible in a hospice setting, it is ethically demanding but not impossible, and it would produce the denominator the field is missing. It has not been done.