Autism & Developmental

Memory illusion in high-functioning autism and Asperger's disorder.

Kamio et al. (2007) · Journal of autism and developmental disorders 2007
★ The Verdict

High-functioning autism can cut false memories, so check whether learners catch your unstated themes.

✓ Read this if BCBAs teaching verbal adolescents or adults with ASD in clinic or classroom settings.
✗ Skip if Clinicians working only with non-verbal or severe intellectual disability.

01Research in Context

01

What this study did

Yoko and colleagues asked adults with high-functioning autism and Asperger’s to study word lists.

The lists hid a theme word that was never spoken, like “sleep.”

Later the team checked who falsely recalled the missing word.

02

What they found

The high-functioning autism group had fewer false memories than typical adults.

The Asperger group remembered about the same number of false words, but they used different thinking steps to get there.

03

How this fits with other research

Matson et al. (2011) showed that kids with ASD recall more words when you give cues.

That study supports the idea that memory in ASD is cue-hungry, yet Yoko’s adults formed fewer spontaneous false memories.

Together the papers suggest reduced guessing, not weaker memory, drives the illusion drop.

DeRoma et al. (2004) found that autistic children struggle with “what-if” thinking.

Poor counterfactual skill may limit the brain’s habit of filling gaps, explaining why false memories drop.

04

Why it matters

When you teach abstract or thematic material, know that some learners with ASD may not fill in unstated links.

Add clear cues and state the big idea out loud instead of assuming they will infer it.

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→ Action — try this Monday

After a story or lesson, ask the client to list key points; if the main theme is missing, state it directly and review.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
28
Population
autism spectrum disorder
Finding
mixed

03Original abstract

In this study, 13 individuals with high-functioning autism (HFA), 15 individuals with Asperger's disorder (AD), and age-, and IQ-matched controls were presented a list of sentences auditorily. Participants then evaluated semantically related but new sentences and reported whether they were old or new. The total rates of false recognition for semantically related sentences were similar among the three groups. Nevertheless, memory illusion on some aspects was reduced in HFA participants. These results suggest that HFA have difficulties in semantic association. Although individuals with AD showed no quantitative abnormalities of memory illusion, some contributing factors were atypical. These findings are discussed in terms of schema theory, enhanced perceptual processing hypothesis, and weak central coherence hypothesis.

Journal of autism and developmental disorders, 2007 · doi:10.1007/s10803-006-0214-y