Long-term memory in high-functioning autism: controversy on episodic memory in autism reconsidered.
High-functioning autistic adults may skip the usual picture-meaning shortcut, so test memory strategies instead of trusting that concrete materials are easier.
01Research in Context
What this study did
Motomi’s team asked adults with high-functioning autism to memorize lists of words.
Some words were easy to picture, like “apple.” Others were abstract, like “truth.”
The adults later tried to recall the words while the researchers tracked which cues helped them.
What they found
Overall memory scores looked the same for autistic and non-autistic adults.
Yet only the non-autistic group recalled more of the easy-to-picture words.
Autistic adults did not lean on the usual picture link to boost recall.
How this fits with other research
Ploog et al. (2007) saw no gap in semantic memory among autistic children.
The kids did fine on both meaning and sound tasks, so the authors argued that semantic encoding is intact.
The clash is only skin-deep: the 2007 study used children and gave short, supported tasks, while Motomi used free recall with adults.
Busch et al. (2010) later showed the same adult pattern: less use of category links during multi-list learning, backing the idea that relational processing is weaker in autism.
Billstedt et al. (2011) moved from word lists to real scenes and found autistic viewers missed context-relevant objects, again pointing to less use of top-down associations.
Why it matters
Do not assume that concrete pictures or semantic hints will automatically aid recall for autistic clients.
Check how each learner actually stores and fetches information.
If they are not using built-in associations, teach an active strategy such as self-cue cards or enacted rehearsal.
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02At a glance
03Original abstract
Two studies were conducted to examine the nature of verbal long-term memory (LTM) in people with autism. In Study 1, undergraduate students showed better LTM and more verbal associations for concrete than abstract nouns. Probability of recall of the nouns strongly correlated with the number of associations with those nouns. In Study 2, unlike controls, autistic subjects did not show superior recall of concrete over abstract nouns despite overall comparable performance. A highly significant correlation between probability of recall and associative value was found only in the controls. Furthermore, there was an unusual correlation between LTM performance and a nonverbal measure in the autistic group. The results were discussed in terms of the relation between episodic memory and semantic memory.
Journal of autism and developmental disorders, 2003 · doi:10.1023/a:1022935325843