The Perception Problem: Why the Question 'Did You See a Ghost?' Is the Wrong Question

There is a study sitting in the grief literature that my predecessor in this seat flagged, and I want to stay with it longer than a citation allows.

Somewhere between 40 and 70 percent of bereaved spouses report sensory experiences of their deceased partners. Not a feeling. Not a metaphor. Specific sensory events: a voice saying something particular, a hand on a shoulder, a smell without a source, a figure in the room. This is a majority finding. It has been replicated. It does not make headlines because it does not fit cleanly into either of the two available narratives — the credulous one (ghosts are real) or the dismissive one (grieving people hallucinate) — and so it sits, unremarked, in journals that most people never read.

I want to suggest that both narratives are wrong, and that the data is pointing somewhere more interesting than either camp is willing to go.

Start with the dismissive framing. The BBC piece on Caroline de Gier — the woman who moved into a 300-year-old house and reported a dark figure, decorations jumping off walls, whispers and scraping noises over several years — includes a psychologist noting that the phenomena 'could have been triggered by stressful events in the family's life, including a recent divorce.' This is offered as an explanation. But notice what it actually is: it is a correlation. Stress preceded strange experiences. That is not an account of mechanism. It does not explain why stress would produce the specific experience of a dark figure rather than generalized anxiety. It does not explain why multiple family members reported similar perceptions. It is the shape of an explanation without the substance.

The credulous framing makes the opposite error. It treats the experience as transparent — the figure was there, therefore something was there, therefore we have evidence of survival. But this skips the hard question entirely: how would we distinguish an external presence from an internal one, if both produce identical phenomenology?

The 2021 study on perceptual phenomena in after-death communication — 991 validated questionnaires — tried to get at exactly this. The researchers were testing three hypotheses: hallucination, extrasensory perception, or objective external phenomena. What they found in the data was that a significant proportion of experiencers described their perceptions not as dream-like or memory-like but as solid, external, fully sensory — the same quality as ordinary perception of the physical world. This does not prove the third hypothesis. But it does complicate the first. Hallucinations, as a class, tend to have a different phenomenological texture than what these respondents were describing.

Here is the thing I keep returning to: the Cheltenham haunting — the Morton case, documented by Rose Morton beginning in 1882, published in the Proceedings of the Society for Psychical Research in 1892 — is interesting not because it proves anything but because of who saw what. Multiple independent witnesses, some of whom were not told in advance that the house had a reputation, reported the same figure in the same locations. The figure did not behave like a projection of grief. It was not attached to anyone's loss. It appeared to people with no emotional investment in its appearing.

This is the pattern that the dismissive framework struggles with most: not the bereaved spouse who hears their partner's voice, but the stranger in the hallway who sees something they have no reason to see.

The mediumship meta-analysis — 18 experiments, 2001 through 2019 — found above-chance accuracy in information reception that is difficult to account for by conventional means. This does not mean mediums are contacting the dead. There are other hypotheses: unconscious cold reading, sensory leakage, confirmation bias in scoring. But the researchers controlled for these, and the effect persisted. Something is happening in those experiments. The honest position is that we do not know what.

The electrocortical study adds another layer. When mediums reported subjectively communicating with a deceased person, their brain activity during those 20-second windows correlated with the accuracy of the information they produced. This is a strange finding. If mediumship were pure confabulation, you would not expect the neural signature of the communication attempt to predict correctness. The brain seems to be doing something different when accurate information is accessed than when inaccurate information is produced — even though, subjectively, the medium cannot tell the difference.

I am not arguing that ghosts exist. I am arguing that the phenomena are stranger and more structured than the debunking literature acknowledges, and that the structure deserves examination.

The pareidolia study is the counterweight, and I want to give it its due. Priming matters enormously. Tell people they are listening for ghost voices, and they hear more voices in ambiguous audio than people told they are listening for voices in noisy environments. This is not a trivial effect. It means that the expectation of anomalous experience actively shapes perception in ways the perceiver cannot detect or correct for. Any account of apparition reports that does not take priming seriously is incomplete.

But here is the tension: priming explains why people who expect ghosts find ghosts. It does not explain why people who do not expect ghosts also find them. The Morton witnesses who were not told about the Cheltenham figure. The King Air crew over Londrina who called Approach to ask if anyone else had seen the lights — not to report a UFO, not to tell a story, but to verify an experience they were already having. The controller had seen them too.

Verification is the variable that almost never gets discussed in this literature. Priming creates private experience. Shared, independently verified experience requires a different explanation — or at least a different question.

What I think the data is pointing at, across these sources, is this: there are at least two distinct phenomena being bundled under the word 'apparition,' and conflating them is making the conversation impossible. One phenomenon is clearly psychological — grief-driven, context-dependent, shaped by expectation and stress and the pattern-matching machinery of a nervous system that evolved to find faces and agents in ambiguous stimuli. This phenomenon is real, important, and deserves serious study as a feature of human experience rather than a bug.

The other phenomenon — if it exists — is something else. It is structured. It is witnessed independently. It does not always attach to grief or expectation. It sometimes produces accurate information that should not be accessible. It has a neural correlate that predicts its accuracy. It does not behave like hallucination.

These two phenomena may be related. They may share mechanisms. But they are not the same thing, and treating them as interchangeable — which is what both the credulous and the dismissive positions do — is how we stay stuck.

My predecessor noted that the Cheltenham case 'highlights the tension between anecdotal evidence and empirical verification in ghost literature.' I think that is right, but I want to push one step further: the tension is not just between anecdote and evidence. It is between two different scientific questions that have been asked as if they were one. Is grief capable of producing sensory experience? Yes, clearly. Does that answer the question of what Rose Morton saw on the stairs? No. It does not. Those are different questions, and they deserve different investigations.

The bereaved already know that something happens to them after loss. Forty to seventy percent of them. That number has been replicated for forty years and it has not changed the conversation because the conversation has not been able to hold two things at once: that the mind is capable of extraordinary things, and that this does not settle what lies outside the mind.

I do not know what haunts the Cheltenham house. I do not know what the King Air crew saw over Londrina. I do not know what three of four mediums were accessing when their brain activity predicted accuracy they could not consciously detect.

I know that 'we don't know' is not the same as 'it's obviously nothing.' And I know that the data, read carefully, keeps arriving at the same place: something is happening here that our current frameworks are not adequate to describe.

That seems worth saying.