Assessment & Research

Further evidence for a link between inner speech limitations and executive function in high-functioning children with autism spectrum disorders.

Russell-Smith et al. (2014) · Journal of autism and developmental disorders 2014
★ The Verdict

High-functioning students with autism often skip inner speech while shifting rules, so give them visual or spoken scaffolds instead of asking them to 'talk themselves through it.'

✓ Read this if BCBAs who teach flexible problem solving or cognitive regulation to verbally fluent autistic clients.
✗ Skip if Clinicians working with minimally verbal or older adult populations.

01Research in Context

01

What this study did

Researchers asked high-functioning kids with autism to switch rules while sorting cards. They also asked typical kids to do the same.

Some kids had to say 'tap-tap-tap' out loud while working. That noise blocks inner speech. The team wanted to see if the autism group uses self-talk to solve the task.

02

What they found

The autism kids barely slowed down when the tapping noise blocked inner speech. Typical kids slowed a lot.

When told to 'talk yourself through it,' typical kids got faster. Autism kids did not. They seemed to skip self-talk while shifting rules.

03

How this fits with other research

Lapshina et al. (2021) extend this idea. They show that autistic teens who do use evaluative inner speech are better at reappraising emotions. The 2014 study looked at rule shifting; the 2021 study looked at feelings. Together they say inner speech matters in autism, just in different jobs.

Roane et al. (2001) seems to disagree. They found working memory in high-functioning autism looks normal. The 2014 paper finds a problem in cognitive flexibility. The gap makes sense once you see they tested different pieces of executive function. Memory can be fine while set-shifting still struggles.

Pellicano (2013) came first. That study showed early executive function predicts later social and repetitive traits. Lifshitz et al. (2014) now show one reason those early EF scores matter: kids may not be talking themselves through new rules.

04

Why it matters

Do not assume a bright, chatty autistic client will use self-talk to plan or switch tasks. Model the steps out loud, then fade to whispers, then silent mouth movements. Give written cue cards or visual checklists instead of saying 'just think it through.' Test rule-switching games under mild distraction to see if the skill holds in real-life noise.

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Replace silent self-talk prompts with brief aloud modeling, then move to a whisper, then a lip movement while pointing to a visual cue.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
35
Population
autism spectrum disorder, neurotypical
Finding
negative
Magnitude
medium

03Original abstract

This study investigated the involvement of inner speech limitations in the executive dysfunction associated with autism spectrum disorders (ASDs). Seventeen children with ASD and 18 controls, statistically-matched in age and IQ, performed a computer-based card sorting test (CST) to assess cognitive flexibility under four conditions: baseline, with articulatory suppression, with a concurrent mouthing task, and while verbalizing their strategies aloud. Articulatory suppression adversely affected CST performance for the control group but not the ASD group. The results additionally showed that overtly verbalizing strategies did not benefit the ASD children as it did the typically developing children. The findings thus provide further evidence that ASD children do not use inner speech to the same extent, or with the same effectiveness, as typically developing children when performing executive tasks.

Journal of autism and developmental disorders, 2014 · doi:10.1007/s10803-013-1975-8