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HUMAN OS WIKI · 02 · UNDERSTANDING YOUR KIDS

SUGGESTIBILITY AND CONFABULATION

Two memory effects in FASD are among the most misread behaviors in the condition. A child agrees with the question, or fills a gap with a story they believe. It looks like lying. It is memory. Read as dishonesty, it leads to punishment, school exclusion, family conflict, placement breakdown and police contact.

8 min read Last updated October 2026 Source: The Invisible Disability, Ch. 2 and Ch. 10
The child is not lying. Their brain matched the story it was given because it could not produce its own. — The Invisible Disability, Ch. 2
SHORT ANSWER

In FASD, two memory effects are most often mistaken for lying. Suggestibility is a tendency to take on another person's version of events as your own memory, especially under stress or when recall fails. Confabulation is the brain filling a memory gap with invented detail, automatically and without awareness; the person believes the filled-in memory is real. Confabulation does not come from a decision, so punishment cannot reduce it; it only adds anxiety, and anxiety makes memory less reliable still. What helps: open questions instead of leading ones, accepting "I don't know", lowering the stress of the conversation, checking facts another way, and, when the questioning is by police or a court, an independent support person and a recorded interview and a lawyer who understands FASD.

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The problem

A teacher asks a child with FASD, "Did you hit Jordan because he took your pencil?" The child says yes.

Maybe that is what happened. Or the child hit Jordan for a different reason, did not hit him at all, or was the one who got hit. The child is not lying. Their brain matched the story it was handed, because it could not produce its own.

Now the same problem from the other side. A child says they brushed their teeth, and clearly did not. It looks like a lie told to dodge a chore. More likely, the brain has blended the plan to brush with a memory of brushing, and the child may not be able to tell intending from doing.

These are the two memory effects the book says are most often mistaken for lying. Read as dishonesty, they lead straight to punishment, school exclusion, family conflict, placement breakdown, and contact with police. The book's own advice: if you read only one chapter, make it this one.

The mechanism

Suggestibility is a strong tendency to take on another person's account of events and believe it. In FASD it is not gullibility in the everyday sense. When the brain cannot pull up a clear memory, it reaches for the most available story, and that is usually the one offered by the person asking the questions, especially if that person has authority.

Stress makes it stronger. Under stress the brain's planning and checking systems work even less well, and reliance on outside suggestions grows. In a police interview, a school discipline meeting, a child protection interview or a heated talk with a tired parent, a person with FASD will often agree with whatever version of events is put to them. Fear can add to it, but the core is memory: the brain has no competing account to offer, so it takes the one on the table.

Confabulation runs the other way. The brain does not borrow a story here; it supplies the detail itself. When a memory cannot be retrieved, the brain fills the gap with invented detail, automatically and without awareness. The person believes the filled-in memory is real and will defend it with conviction. There is no intent to deceive.

The book says confabulation may be the most damaging FASD behavior in social, school and legal settings, because it is almost always read as deliberate lying. When an adult catches an apparent lie, the natural response is anger and punishment. But the behavior does not come from a decision, so punishment cannot reduce it. It only adds anxiety, and anxiety makes memory less reliable still.

What confabulation looks like, and what the book says to do instead:

Why the stakes get high. The same two effects follow a person into rooms where the questions are not friendly. A review written for police, forensic and legal professionals describes how these traits can lead to rights waived on impulse, wrong assumptions about competence, misread intent, unreliable witness accounts, false confessions and false accusations (Brown et al., 2020). People with FASD are overrepresented in the justice system: a review of studies across many countries found FASD 10 to 40 times more common in special groups such as people in correctional settings than in the general population (Popova et al., 2019a), and a careful assessment of adults in a northern Canadian correctional sample found it in 17.5 percent of them (McLachlan et al., 2019). The book names the reasons: impulsive decisions, a social naivety that makes people easy to recruit and exploit, and memory effects that produce unreliable statements. A police encounter may be the most dangerous situation a person with FASD faces, because fast spoken commands, high stress, authority pressure and the expectation of instant compliance are the conditions that bring out suggestibility.

A composite story from the book. A composite is an illustration built from patterns that caregivers and clinicians describe often, not one real person. Marcus, 19, is arrested after older acquaintances asked him to hold some items while they went to get the car. In the police interview the officer asks, "You knew you were stealing those items, didn't you?" Marcus says yes. He had not known, but the question carried its own answer, and his brain adopted it. Asked by his lawyer what happened, he told a different story each time, and the inconsistency was read as deception. Six months after his release a community worker recognized the pattern and he was diagnosed with FASD. The conviction stayed on his record.

The operating system

STEP 01

Read it as memory, not as a lie

Before you react, ask one question: could this person be missing the memory? The book's glossary calls confabulation a memory symptom, not lying. The behavior does not come from a decision, so punishment cannot reduce it.

Say to yourself, "this is a gap, not a choice," before you say anything to them.
STEP 02

Ask open questions, and take "I don't know."

Ask "Tell me what happened," not "Did you hit Jordan?" Accept "I don't know" and "I don't remember" as valid answers, usually true. Do not repeat a question after "I don't know," because repeating it signals that the answer was wrong and pushes the child to produce a different one.

The more specific and leading the question, the more likely the child is to confirm it.
STEP 03

Lower the stress before the important conversation

Choose a calm, quiet, familiar place, which the book says helps. Under stress the brain's planning and checking systems, already weaker in FASD, work even less well. Do not tell them to "tell the truth" or "think harder": it implies they are lying, which raises anxiety and makes recall worse.

A heated conversation with a tired parent is one of the book's own examples of a setting where a person with FASD will often agree with whatever version is put to them. If it can wait until everyone is calm, let it wait.
STEP 04

Check the facts another way, and take memory out of the loop

Witnesses, video and physical evidence are more reliable than the child's spoken account. Get the facts from other sources, and rely less on their account for establishing what happened. Then move the memory job out of the head: write agreements down and have the person initial them, keep copies where they can be seen, and refer to the document rather than to their memory when you follow up.

For a task like toothbrushing, a checklist with something to tick does the remembering. See the visual schedules page.
STEP 05

When the stakes are legal, bring the protections in with you

Like the book, this is education and not a substitute for legal advice. The book's list for any legal situation:

  • Ask for an FASD assessment before proceedings if FASD is suspected but not diagnosed.
  • An independent support person at every interview, who is not a police officer or a prosecutor.
  • A video-recorded interview, so any leading questions are on the record.
  • A written explanation of suggestibility and confabulation, prepared by a clinician with FASD expertise, for the court.
  • In court: plain language, frequent breaks, visual aids.
  • With police: ask for silence and a lawyer, right away, and do not accept an informal chat, because people with FASD cannot reliably tell an informal conversation from formal questioning.
  • In Canada, the Youth Criminal Justice Act (section 146) requires that a young person be told, before giving a statement, of the right to consult a lawyer and a parent or other adult.
  • Carry the Emergency Information Sheet (Tool 6). It tells first responders that the person's account may change from one telling to the next because of memory gaps, not because they are lying.
None of this excuses harm. It makes sure that what is judged is what the person did, not what their memory did under questioning.

The printable: ask it right

Print it. Put it where the questions get asked.

SUGGESTIBILITY AND CONFABULATION · MEMORY, NOT LYING
Ask it right. Check it elsewhere.

01 · ASK
Open questions. "Tell me what happened." No leading ones.
02 · ACCEPT
"I don't know" is a valid answer. Do not repeat the question.
03 · CALM
A quiet, familiar place. Never "tell the truth" or "think harder."
04 · CHECK
Witnesses, video, physical evidence, a written and initialed agreement.
05 · PROTECT
Support person, recorded interview, FASD assessment, a lawyer who understands FASD.

THE HUMAN FREQUENCY · FIND COMMON GROUND

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Common questions

Is a child with FASD who tells a story that did not happen lying?
The book says no. Confabulation is the brain filling a memory gap with invented detail, automatically and without awareness, and there is no intent to deceive. Its glossary puts it in one line: a memory symptom, not lying. That is why punishment cannot reduce it. It is not a license for harm, though: none of this excuses harm.
What is the difference between suggestibility and confabulation?
Suggestibility borrows a story: the person takes on someone else's version of events as their own memory. Confabulation builds one: the brain fills the gap itself, without awareness. The first leans on the story being offered, usually by the person asking the questions. In the second the detail comes from the brain's own gap-filling, though mood and the cues around them can shape it.
Should I tell my child to tell the truth or think harder?
No. The book says that implies they are lying, which raises anxiety and makes recall worse. Ask an open question instead, accept "I don't know" as a valid answer, and check the facts another way.
How should police, lawyers or social workers question a person with FASD?
The book names four protections that matter: open questions, no leading prompts, recorded interviews, and an independent support person in the room. A review written for police and legal professionals explains how suggestibility and confabulation can produce false confessions and sets out interviewing practices that reduce the risk. Like the book, this page is education and not a substitute for legal advice. In a real police situation, the book's first step is to ask for silence and a lawyer, right away.

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SOURCES & CITATIONS▾

All claims on this page are cited in The Invisible Disability: Chapter 2 (pp. 20 to 24), Chapter 3 (p. 25), Chapter 4 (p. 31), Chapter 8 (p. 57), Chapter 10 (pp. 61 to 63), Appendix A, Tool 6 (p. 94), the Appendix C glossary (pp. 105 and 107), the reference list (pp. 108 to 110) and the front matter (pp. 2 and 8). Studies the book cites for the claims above:

  • Brown, J., Asp, E., Carter, M. N., Spiller, V., & Bishop-Deaton, D. (2020). Suggestibility and confabulation among individuals with fetal alcohol spectrum disorder: A review for criminal justice, forensic mental health, and legal interviewers. International Journal of Law and Psychiatry. 73, 101646. DOI
  • Popova, S., Lange, S., Shield, K., Burd, L., & Rehm, J. (2019a). Prevalence of fetal alcohol spectrum disorder among special subpopulations: A systematic review and meta-analysis. Addiction. 114(7), 1150-1172. DOI
  • McLachlan, K., McNeil, A., Pei, J., Brain, U., Andrew, G., & Oberlander, T. F. (2019). Prevalence and characteristics of adults with fetal alcohol spectrum disorder in corrections: A Canadian case ascertainment study. BMC Public Health. 19(1), 43. DOI

The book states that every journal entry in its reference list carries a DOI that was matched to its Crossref and PubMed record during the October 2026 verification.

Where we get our research: We cite peer-reviewed work by its DOI, so each reference above opens the article itself. Where a framework's owner published a book rather than a paper, we name the author, year and publisher and link the publisher's page. The most common are the Gottman Institute's research, Stephen Porges's The Polyvagal Theory (Norton, 2011) and his 2023 reply to its critics, and Fisher and Ury's Getting to Yes (Penguin). Where we have no peer-reviewed article, we name the framework's author and say so. See our editorial policy for the full sourcing standard.