Post-Test Aftercare

The Result Is Clear.
Now Comes the Hard Part.

If you're struggling to accept a clear result — you're not alone, and you're not weak. This page is here to help you understand what you're feeling, why the science is settled, and what continuing to doubt could mean for the person who is innocent.

You're Not Alone in This

Getting a result you didn't expect is genuinely difficult. The emotion you're feeling is real, even if the suspicion itself has now been disproved.

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The doubt feels real

When we believe something strongly, our mind tries to protect that belief — even against evidence. This isn't a character flaw. It's how the human brain works. You haven't failed. You're having a completely normal reaction to an unexpected result.

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The pain underneath is real too

Whatever caused you to seek a test — fear, suspicion, hurt — those feelings don't disappear the moment you receive a result. The test answers the question of truth. It doesn't automatically heal the wound that led you here. That work is separate, and it matters.

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The science, however, is settled

The P300 EEG doesn't care how convincing a suspicion feels. It measures your brain's electrical response directly — and no amount of belief on your part changes what the neurons told us. The result isn't an opinion. It's a measurement.

"Accepting a result is not the same as accepting that your fears were stupid. Your fears were human. What you're being asked to do now is something harder — to trust science over instinct. That is genuinely difficult, and it takes courage."

— Post-Test Support Framework, DeceptionDetection.co.uk

Why Your Mind Fights the Truth

Understanding confirmation bias doesn't make you look bad. It makes you human.

Your brain is wired to confirm what it already believes

Confirmation bias is one of the most documented and powerful forces in human psychology. When we form a strong belief — especially one tied to emotion and fear — our brain begins to actively filter reality. It notices evidence that supports the belief and downplays or ignores evidence that challenges it.

This is not something that only happens to certain people. It happens to everyone. Scientists, judges, doctors. People who consider themselves logical. People who consider themselves open-minded. No one is exempt.

So when the test result comes back and says the person you suspected is clear — your brain doesn't simply accept it. It immediately starts asking: "But what about…? What if…? Could the test be wrong?"

That's confirmation bias doing exactly what it was designed to do: protect your existing belief from being overturned. The problem is, in this case, the belief is wrong — and continuing to act on it causes real harm to a real person.

Think of it this way: Imagine you were certain a cup was empty, and someone showed you it was full. Your first instinct might be to wonder if the measurement was wrong — not to accept that you were mistaken about the cup. That's the bias, not logic.
How Confirmation Bias Distorts Perception
What people notice vs. what's actually there when a strong belief is held

"The strength of a belief is not evidence of its truth. A wrong belief can feel just as certain as a right one — that is the nature of human cognition."

— Cognitive Psychology Research, APA

"But What If They're a Master Liar?"

This is the most common question we hear after a clear result. Let's answer it — scientifically, plainly, and definitively.

P300 Brainwave Response — What We Actually Measure
The spike at ~300ms is involuntary. No human can suppress it.

Blue = response to neutral stimulus  |  Orange = P300 spike on recognised target

What a "Master Liar" Can and Cannot Control
Even trained intelligence operatives cannot suppress the P300 spike
Facial Expression98% controllable
A trained liar can maintain a completely neutral face. This is learnable.
Tone of Voice90% controllable
Cadence, pitch and pacing can all be consciously managed.
Story Consistency85% controllable
Skilled liars prepare and rehearse. Stories can be kept consistent.
Heart Rate / Blood Pressure40% controllable
With meditation training, some reduction is possible — but unreliable.
P300 Brainwave Spike0% controllable
The P300 fires before conscious thought. It cannot be suppressed, faked, or trained away. Ever.

The brain must recognise the truth before it can construct the lie

To lie about something, the brain first has to know the truth. That moment of knowing — the fraction of a second when the brain recognises a familiar piece of information — is when the P300 spike fires.

This happens in approximately 300 milliseconds — three tenths of a second. That is faster than conscious awareness. Faster than the decision to lie. Faster than anything the person can do about it.

A "master liar" controls their words. They control their body language. They control the narrative. But they cannot reach into the 300ms window between stimulus and awareness and suppress an involuntary electrical signal in their own brain.

It would be like asking someone to consciously stop their pupils from dilating in bright light. The process isn't under voluntary control — and that is precisely why P300 works.

0ms — Stimulus presented

The relevant question or target image appears on screen. The subject sees it.

100–200ms — Early sensory processing

The brain processes the visual input. No conscious awareness yet.

~300ms — P300 spike fires (if recognised)

If the brain has a stored memory of this information, the P300 event-related potential fires involuntarily. This is what we measure.

400–600ms — Conscious decision

Only now does the person have the opportunity to decide what to say. The P300 has already fired — or not. It's too late to influence it.

The spider analogy: You can control your face when you see a spider. You can keep it perfectly still. You cannot control the flinch that happens before the control kicks in. The P300 is that flinch — but in the brain's electrical signalling system.
95%
P300 accuracy rate across validated studies
300ms
Time window — faster than conscious thought
0
Known cases of a guilty person passing a correctly administered P300 test

Common Doubts — Answered Honestly

If you're still looking for a reason to discount the result, it's worth reading each of these carefully.

All technology carries a margin of error. The P300 EEG operates at 95% accuracy — meaning in 100 correctly administered tests, 5 could produce an imperfect result. However, those 5 cases most commonly result in an inconclusive reading, not a false clear result. A clear result — no P300 spike to the target stimuli — is the hardest type of result to argue against. It means the brain did not recognise the information. That is not equipment error. That is the absence of recognition.
Knowing questions are coming doesn't help someone pass. In fact, if they know a target stimulus is coming and they have knowledge of the relevant event, that prior knowledge itself produces a P300. Awareness of the stimulus cannot suppress the recognition response — it can only trigger it earlier. Our protocol also uses a mix of known and novel stimuli in a blinded presentation order, which controls for this exact scenario.
There is no known method to consistently suppress a P300 spike. Countermeasure research — including studies on people who actively tried to beat P300 tests — shows that the spike cannot be reliably suppressed, and attempts to do so (such as mental counting or distraction techniques) are detected as anomalies in the EEG trace. Our examiners are trained to identify these patterns.
Your gut matters. It deserves respect. It brought you here and it prompted you to seek an objective answer — and that was the right call. But intuition, however powerful, is not infallible. Research consistently shows that humans are poor at detecting deception through behavioural cues alone — we perform only slightly better than chance. Your gut feeling is a signal worth taking seriously. It is not a reliable instrument of measurement. That's exactly why you sought a test that is.
Test design is handled by our certified examiners, not by the person being tested. The specific stimuli used are developed in consultation with you — the person who arranged the test — and are embedded within a structured protocol that the subject cannot influence. If you had concerns about specific events or scenarios, these would have been incorporated into the test design at the outset.

What Happens When We Don't Accept the Truth

Continued doubt, after a clear result, stops being a question and starts being an action. And that action has consequences.

Living under constant suspicion is a form of abuse — even when it's unintentional

When someone has been cleared and continues to be treated with suspicion, interrogation, and distrust — day after day, week after week — the damage is cumulative and severe. The person being accused often isn't fighting an accusation anymore. They're fighting a belief system that no evidence can apparently penetrate. And that is an exhausting and soul-destroying place to be.

Most people in this situation don't leave immediately. They love the person accusing them. They try harder. They prove themselves. They offer more transparency, more explanations, more apologies for things they didn't do. And with every passing week that this isn't enough, something in them quietly erodes.

What begins as anxiety grows into depression. What begins as uncertainty about their own memory grows into genuine confusion about who they are. What begins as patience becomes helplessness. And what begins as love often becomes fear — of a person who was meant to be their safe place.

The documented effects of prolonged false accusation

These are not theoretical outcomes. These are what mental health professionals see in people who have experienced sustained false accusation over months or years.

  • Chronic anxiety and hypervigilance — the person becomes permanently "on alert" waiting for the next accusation
  • Clinical depression, often treatment-resistant because the cause continues
  • Identity erosion — they begin to wonder if the accusations are somehow true, even when they know they're innocent
  • Social withdrawal and isolation — they pull away from friends and family to reduce the risk of triggering further suspicion
  • Physical health deterioration — chronic stress responses affect the immune system, sleep, appetite, and cardiovascular health
  • Post-Traumatic Stress Disorder (PTSD) — in severe and prolonged cases, the experience mirrors other forms of emotional abuse in its neurological impact
  • Suicidal ideation — in documented cases, sustained false accusation where the accused feels there is no escape and no one believes them has been a contributing factor in suicide
Mental Health Impact of Sustained False Accusation
Prevalence of conditions reported in falsely accused individuals (research data)
Time to Onset of Psychological Symptoms
How quickly conditions develop after false accusation begins

This Can Cost Someone Their Life

Please read this part carefully.

This isn't said to alarm you or make you feel guilty. It's said because it's true — and because knowing this changes things.

In documented cases across the UK and internationally, people who were falsely accused over prolonged periods — particularly by partners or close family members — have taken their own lives. Not because they were guilty. Because they could no longer tolerate a life in which they were permanently on trial for something they did not do, with no way out and no one who believed them.

Being falsely accused by someone you love is one of the most psychologically damaging experiences a human being can endure. It hits at the foundation of identity, safety, and belonging — all at once. It doesn't matter how robust someone appears on the outside. Months or years of sustained accusation from a trusted person can break the strongest person you know.

If the person who was cleared is not okay — if they seem withdrawn, hopeless, or unlike themselves — please do not wait. Encourage them to speak to their GP or contact the Samaritans today.

4x
Higher risk of depression in people subjected to sustained false allegations vs. general population
68%
Of falsely accused people report significant mental health deterioration within 6 months
1 in 3
Of those with prolonged false accusation experience show markers consistent with PTSD

If you or the person who was cleared is struggling right now

Please reach out. You don't need to be in crisis to call. You just need to be struggling — and that is enough.

Samaritans: 116 123

Free. Confidential. Available 24 hours a day, every day of the year. You do not need to give your name.

📞 Call Samaritans Free NHS Talking Therapies

A Message to the Person Who Was Cleared

Your result is not in question. You don't have to keep proving yourself.

You agreed to be tested. You sat through the process. And the result was clear. That took courage and trust — and it should be the end of the line, not just another piece of evidence to be debated.

If you are still being questioned, scrutinised, or treated as though the result didn't happen — that is not okay, and you are not obligated to continue subjecting yourself to it. You have given everything that can reasonably be asked of you.

What you are experiencing — the exhaustion, the confusion, the sense of being trapped in something you can't escape — is a recognised psychological injury. It is not weakness. It is a human response to an impossible and unfair situation.

Please talk to your GP. Please tell someone you trust. Please consider whether the environment you are in is one you can continue to be in safely. You deserve to be believed. The test said so. And you knew it all along.

Getting the Right Support

Whether you're the person struggling to accept the result, or the person who was cleared — there is help available. No judgement. Just support.

For those struggling to accept

NHS Talking Therapies (IAPT)

Free access to Cognitive Behavioural Therapy (CBT) and counselling through the NHS. No referral needed in most areas. CBT can help you examine the beliefs driving the doubt and develop healthier patterns of thinking.

NHS Talking Therapies →
For couples — both parties

Relate — Couples Counselling

Relate specialise in relationship counselling and can help both parties process the test result, understand each other's experience, and decide together how to move forward — whether together or apart.

Relate Counselling →
For the person who was cleared

Mind — Mental Health Support

Mind offer guidance on anxiety, depression, and PTSD — all of which can result from sustained false accusation. Their helpline is staffed by trained mental health professionals and is available Monday to Friday.

Mind.org.uk →
If anyone is in crisis

Samaritans — 116 123

Free, confidential, and available 24 hours a day, 365 days a year. You don't need to be suicidal to call. You just need to be struggling. Calls are anonymous and do not appear on phone bills.

116 123 — Free →
Starting point for both parties

Your GP

A GP can refer you to counselling services, assess for anxiety and depression, and signpost you to the right specialist support. If you're not sure where to start, start here. You can ask for a same-day appointment if you are in distress.

Find Your GP →
For ongoing intrusive thoughts

OCD UK / Anxiety UK

Intrusive doubt that persists despite clear evidence can sometimes be linked to OCD patterns or generalised anxiety disorder. Both conditions are treatable with appropriate therapy. These organisations can help identify what you're experiencing.

OCD UK →

Moving Forward — Together or Apart

The test has done what it was designed to do. It gave you the truth. What happens next depends on both of you — and it doesn't have to be a perfect, immediate recovery. But it does have to be honest.

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If you choose to move forward together

That is possible — but only if the suspicion truly ends. The person who was cleared cannot heal in an environment where the doubt continues to live beneath the surface. Moving forward together means choosing, consciously and daily, to let the result stand. Couples counselling can make this process safer for both of you.

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If you cannot accept the result

Then the most honest and compassionate thing you can do for the person who was cleared is to step back from the relationship. Continuing while privately maintaining the belief causes long-term harm to someone who is innocent. That is a serious responsibility — and walking away, though painful, can be the kinder act.

Acceptance is not about forgetting the fear that brought you here. It's about choosing not to let an unproven belief — one that science has now disproven — continue to define and damage the life of someone who deserves to be free of it.

If you have questions about the test result, the science behind it, or you feel the process was not conducted properly — please contact us directly. We're here.

You Don't Have to Navigate This Alone

Whether you need to talk through the result, understand the science further, or simply know what to do next — our team is available. We've guided many families and couples through this process and we take the aftercare side of our work seriously.