Autism & Developmental

Visuospatial working memory in children with autism: the effect of a semantic global organization.

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

Autistic kids don’t lean on global patterns to remember visual layouts—so teach in small, labeled chunks.

✓ Read this if BCBAs teaching daily living or academic skills that use visual memory.
✗ Skip if Practitioners working only on social or language goals.

01Research in Context

01

What this study did

The team tested the kids. Half had autism, half were typical.

Each child saw grids of colored shapes. Some grids had a hidden pattern, like all red items on the left.

Kids tried to remember the grid, then rebuild it on a blank screen.

02

What they found

Typical kids scored higher when the grid had a pattern. The pattern acted like a memory shortcut.

Autistic kids scored the same with or without a pattern. The shortcut did not help them.

This fits the idea of weak central coherence: autistic minds focus on pieces, not the big picture.

03

How this fits with other research

Ploog et al. (2007) found autistic kids can use semantic cues in word lists. That seems opposite. The key is the task: words tap language, grids tap vision.

Sasson et al. (2018) showed kids with more autistic traits had sharper visual memory. Again, seems opposite. But that study tested neurotypical kids with mild traits, not diagnosed autism.

Baharav et al. (2008) saw the same weak central coherence in story telling. Their autistic kids missed the overall plot. The new study shows the same pattern in pictures.

04

Why it matters

When you teach new skills, skip the big-picture hints. Break tasks into clear, separate steps. Use labels, colors, or borders to mark each part. Test memory by asking for details, not the whole scene.

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→ Action — try this Monday

Present a visual schedule as single cards, not one large poster, and ask the child to place each card in order.

02At a glance

Intervention
not applicable
Design
quasi experimental
Population
autism spectrum disorder, neurotypical
Finding
mixed

03Original abstract

It has been reported that individuals with Autism Spectrum Disorders (ASD) perceive visual scenes as a sparse set of details rather than as a congruent and meaningful unit, failing in the extraction of the global configuration of the scene. In the present study, children with ASD were compared with typically developing (TD) children, in a visuospatial working memory task, the Visual Patterns Test (VPT). The VPT array was manipulated to vary the semantic affordance of the pattern, high semantic (global) vs. low semantic; temporal parameters were also manipulated within the change detection protocol. Overall, there was no main effect associated with Group, however there was a significant effect associated with Semantics, which was further qualified by an interaction between the Group and Semantic factors; there was only a significant effect of semantics in the TD group. The findings are discussed in light of the weak central coherence theory where the ASD group are unable to make use of long term memory semantics in order to construct global representations of the array.

Research in developmental disabilities, 2014 · doi:10.1016/j.ridd.2014.03.030