Assessment & Research

Deeper processing is beneficial during episodic memory encoding for adults with Williams syndrome.

Greer et al. (2014) · Research in developmental disabilities 2014
★ The Verdict

Adults with Williams syndrome can double their recall when you make them think about meaning, the opposite of what happens in autism.

✓ Read this if BCBAs working with adults or teens with Williams syndrome in day-hab or college-prep programs.
✗ Skip if Practitioners who serve only autism or ID without Williams cases.

01Research in Context

01

What this study did

Greer et al. (2014) asked adults with Williams syndrome to study lists of words. Some words were paired with a deep question that made the person think about meaning. Other words got a shallow question about shape or sound.

Later the adults tried to recall all the words. The team compared how many deep-encoded versus shallow-encoded words came back.

02

What they found

The Williams group recalled more words after the deep, meaning-based questions. Semantic elaboration helped them, even though their overall memory scores are usually low.

The boost was large enough to matter in real life. It shows these adults can tap into semantic strategies when we set them up.

03

How this fits with other research

McGonigle et al. (2014) and Crane et al. (2008) tested high-functioning adults with autism using similar deep-vs-shallow tasks. Those studies found no gain from semantic cues; the ASD groups still recalled fewer items. The pattern flips with Williams syndrome.

Massand et al. (2015) and Maddox et al. (2015) add brain data. Their ASD adults showed weak early ERP signals and low hippocampal activity during encoding. The Williams adults in Joanna’s study did not have this blunted response, which may explain why semantic depth worked.

Poppes et al. (2016) extends the idea. They showed that Williams adults notice faces differently, but the emotional content does not boost their memory. Together the papers say: give Williams learners meaning, not just smiles.

04

Why it matters

If you teach a client with Williams syndrome, always link new facts to rich meaning or category. Ask “What does this do?” instead of “What color is it?” The same trick fails in ASD, so match the strategy to the syndrome. One quick change can double recall in a single session.

Free CEUs

Want CEUs on This Topic?

The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.

Join Free →
→ Action — try this Monday

Add one semantic question to every new flashcard: instead of “Is this a food?” ask “When would you eat this?”

02At a glance

Intervention
not applicable
Design
quasi experimental
Population
other
Finding
positive

03Original abstract

Previous research exploring declarative memory in Williams syndrome (WS) has revealed impairment in the processing of episodic information accompanied by a relative strength in semantic ability. The aim of the current study was to extend this literature by examining how relatively spared semantic memory may support episodic remembering. Using a level of processing paradigm, older adults with WS (aged 35-61 years) were compared to typical adults of the same chronological age and typically developing children matched for verbal ability. In the study phase, pictures were encoded using either a deep (decide if a picture belongs to a particular category) or shallow (perceptual based processing) memory strategy. Behavioural indices (reaction time and accuracy) at retrieval were suggestive of an overall difficulty in episodic memory for WS adults. Interestingly, however, semantic support was evident with a greater recall of items encoded with deep compared to shallow processing, indicative of an ability to employ semantic encoding strategies to maximise the strength of the memory trace created. Unlike individuals with autism who find semantic elaboration strategies problematic, the pattern of findings reported here suggests in those domains that are relatively impaired in WS, support can be recruited from relatively spared cognitive processes.

Research in developmental disabilities, 2014 · doi:10.1016/j.ridd.2014.03.004