Assessment & Research

Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention.

Stevenson et al. (2018) · Journal of autism and developmental disorders 2018
★ The Verdict

Strong attention-to-detail creates a local-first habit, not a global vision problem.

✓ Read this if BCBAs who assess visual processing or social skills in teens and adults.
✗ Skip if Clinicians only working with severe intellectual disability where trait measures are unused.

01Research in Context

01

What this study did

The team asked adults to look at big shapes made of tiny shapes.

People with high Attention-to-Detail scores watched these pictures while the researchers tracked where their eyes went first.

The goal was to see if strong attention-to-detail means you cannot see the big picture.

02

What they found

High-trait adults looked at the small pieces first, but they could still spot the large shape when asked.

The study says this is a habit, not a missing skill.

In short, they prefer trees first, yet they can still see the whole forest.

03

How this fits with other research

Moss et al. (2009) saw the same pattern: adults with high autistic traits find hidden shapes faster and show weaker global links.

Koldewyn et al. (2013) adds that autistic kids can do global tasks when told to, backing the idea of preference, not deficit.

Two eye-tracking papers seem to clash. Bölte et al. (2007) and Nayar et al. (2017) found weaker global perception in diagnosed adults and children.

The difference is clinical status: the target study looks at traits in neurotypicals, while the others test people with ASD diagnoses.

Storch et al. (2012) found no bias at all in diagnosed adults, showing the field is still sorting out when and where the effect appears.

04

Why it matters

When you test a client who spots every tiny detail, do not assume they lack big-picture skills.

Give clear cues like “tell me about the whole picture” before you label it a deficit.

This habit may also link to social struggles, so use visual supports that highlight the overall scene to boost conversation.

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Before a visual task, say “look at the whole thing first” to check if global processing is intact.

02At a glance

Intervention
not applicable
Design
other
Population
not specified
Finding
not reported

03Original abstract

Atypical sensory perception is one of the most ubiquitous symptoms of autism, including a tendency towards a local-processing bias. We investigated whether local-processing biases were associated with global-processing impairments on a global/local attentional-scope paradigm in conjunction with a composite-face task. Behavioural results were related to individuals' levels of autistic traits, specifically the Attention to Detail subscale of the Autism Quotient, and the Sensory Profile Questionnaire. Individuals showing high rates of Attention to Detail were more susceptible to global attentional-scope manipulations, suggesting that local-processing biases associated with Attention to Detail do not come at the cost of a global-processing deficit, but reflect a difference in default global versus local bias. This relationship operated at the attentional/perceptual level, but not response criterion.

Journal of autism and developmental disorders, 2018 · doi:10.1007/s10803-016-2711-y