Scientists Reveal the Secret of Ghost Sightings… Really?
- Dr Iain M Lightfoot
- 2 days ago
- 5 min read
Recently, I read an article in The Telegraph claiming that scientists have “Revealed the secret of ghost sightings.”
Now that is a pretty bold statement to make. Too bold, in my view. Before we go any further, let me be absolutely clear, I’m not dismissing the science. In fact, I am more than agreeing with it. The idea that the brain creates after-images following exposure to light is well established. The concept of saccadic eye movement, those rapid jumps our eyes make every second, is solid. Yes, the notion that these after-images can lag slightly behind our vision (hypometria), and persist for up to 30 seconds, even forming complex, human-like shapes… all of that is credible.
From a scientific standpoint, it makes sense.
Yet, here’s the issue.
This does not “reveal the secret of ghost sightings”. Not even close.
Where Science Helps… and Where It Overreaches
Let’s give credit where it’s due. If someone sees something fleeting in their peripheral vision, a shadow, a flicker, a movement that disappears when they turn their head, then yes, after-images could absolutely be part of the explanation. The brain is not a passive receiver of reality. It actively constructs what we see. It fills in gaps. It stabilises motion. It predicts. Occasionally, it gets it wrong.
So could some ghost sightings be explained this way? I feel that the answer is yes, without question it is a possibility.
However, here’s where the article crosses from science into sensationalism. The headline suggests that the mystery of ghost sightings has been solved. That what people are experiencing is simply a neurological quirk. That is a huge leap from the content, a headline to lure people in. You see, most genuine reports of paranormal activity don’t sit neatly within that category.
The Problem with Reducing Everything to Vision
The article focuses entirely on visual phenomena, after exposure to bright light. In real investigations, and I’m talking about structured, repeatable investigations, not just someone’s one-off story, experiences are rarely limited to sight alone. Let me give you a more accurate picture of what actually happens.
People report being touched, clearly, physically, and in ways that cannot be attributed to environment or suggestion
The capture of clear EVPs (Electronic Voice Phenomena), voices responding intelligently to questions
Objects are moved, sometimes subtly, sometimes forcefully
There are footsteps in empty rooms, or entire buildings
Sudden temperature drops, what many term as cold spots, appear and disappear without environmental cause
Devices like cat balls activate in controlled conditions
Entire teams experience emotional shifts, a heaviness, unease, or sudden change in atmosphere, feelings of sickness or dizziness.
Lights flickering and fluctuations in EMF, batteries being drained.
Yes, there are also full-bodied apparitions, not just flickers in peripheral vision, but figures seen directly, front-on, sometimes by multiple people at the same time.
Now ask yourself, "How does an after-image explain any of that?" It doesn’t.
Frontal Sightings and Photographic Evidence
Another key issue with the article is its assumption that sightings occur primarily in the periphery. That’s not my experience. Many sightings are reported directly in front of the observer, in full view, not as a fleeting illusion, but as something that holds form, presence, and sometimes interaction.
Then there’s photographic and video evidence. Now, I’m not naïve. I know how easily images can be misinterpreted. Light anomalies, dust, reflections, all of these can create misleading visuals. Yet, not everything falls into that category.
There are instances where:
Movement is captured across frames
Shapes form with consistency
Events align with environmental or verbal triggers
Again, after-images, and even pareidolia, doesn't explain that.
The Real Issue: Overgeneralisation; Secrets of Ghost Sightings Indeed!
The real problem here isn’t the science. It’s the overgeneralisation of the science. What the study offers is a possible explanation for a very specific type of visual experience, namely, brief, light-induced distortions in perception. That’s it.
Yet, it’s being presented as if it unlocks the entire mystery of ghost sightings. From an academic perspective, that’s problematic. Good research does not claim more than it can support. Good journalism should not exaggerate those claims.
How Much Does This Actually Explain?
If we’re being fair, and we should be, then yes, this theory could explain a small percentage of reported sightings.
Perhaps those quick glimpses. Those “I thought I saw something” moments, but beyond that? It quickly starts to fall apart. Once you move into:
Multi-sensory experiences
Repeated patterns across different people
Environmental interactions
Instrument-based responses
You are no longer dealing with a simple visual artefact.
You are dealing with something more complex. Whether that “something” is fully understood or not is another question entirely.
Belief, Scepticism, and Staying Grounded
There’s another layer to this.
People tend to fall into two camps:
“It’s all paranormal”
“It’s all explainable”
In my experience, both positions are flawed because blind belief is just as unhelpful as blind scepticism. What we need is disciplined curiosity. Yes, of course challenge what you see. Yes be aware and seek out rational explanations, attempt to understand how the brain can mislead you. Please, don’t stop there. Sometimes, the explanation isn’t immediately obvious. Forcing everything into a convenient box doesn’t make it true, it just makes it comfortable.
An Open Invitation
So here’s my view.
The science around after-images is valid. It’s useful. It adds to our understanding of perception.
It does not come close to explaining the full spectrum of paranormal experiences. Not even remotely. Presenting it as “the secret of ghost sightings” does a disservice to both science and investigation. So rather than debating from a distance, I’ll make a simple offer: Mr Cameron Henderson, from the Daily Telegraph, "Care to come and see for yourself?"
Join us, Paranormal Hunters UK for an investigation. Sit in the dark. Ask the questions. Watch what happens. Just bring an open mind.
I feel that the very moment you experience something that doesn’t fit neatly into a scientific explanation… That’s when the real questions, investigations and journalism begins.
Final Thought
Science explains how we see via our physical eyes. It doesn’t always explain what we are seeing… or why it’s there in the first place or how we could be seeing what we are seeing.
Now, if we take Will R Bird's second encounter in Ghosts have warm hands as read, no-one saw his brother lead him out of the dugout before the bag of mills-bombs was ignited. It seems that spirits can appear to individual people of their choosing. This goes beyond current science and understanding.
Until it does, the conversation is far from over.
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