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:
- A child insists a sibling hit first, when others saw the opposite. It looks like blame-shifting. More likely the brain has rebuilt the event with the child as the one defending themselves, and it feels completely true. Separate the children and name the rule, "The rule is no hitting," without trying to establish who started it.
- A teenager tells two completely different stories about the same event. It looks like manipulation. More likely each telling is a separate attempt to fill the same gap, shaped by mood and by whatever cues were around. Do not interrogate or compare the stories.
- An adult denies eating food that is clearly gone from the fridge. More likely the eating was never stored as a memory, and when confronted the brain supplies an explanation. Change the setup: portion snacks into labeled containers and keep a simple food log.
- Someone agrees to a plan, then denies ever agreeing. More likely the conversation was never stored, or they remember a different version shaped by suggestion at the time. Write it down and have them initial it.
- A child says they brushed their teeth and did not. Put toothbrushing on the visual checklist with something to tick, so it no longer depends on memory.
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
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.
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.
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.
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.
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.
The printable: ask it right
Print it. Put it where the questions get asked.