Formal Thought Disorder and Executive Functioning in Children and Adolescents with Autism Spectrum Disorder: Old Leads and New Avenues.
Low verbal working memory shows up as jumbled speech in high-functioning autism—check it when language sounds odd.
01Research in Context
What this study did
The team tested 30 high-functioning kids and teens with autism. They matched them by age and IQ to 30 typical kids.
Each child did short memory and planning games. Parents also filled out a checklist about odd speech patterns.
Doctors scored the speech for formal thought disorder—sentences that jump topics or make little sense.
What they found
Autistic youth used twice as much jumbled speech as peers. Lower verbal working memory scores went hand-in-hand with stranger language.
IQ and age did not explain the link. Only the ability to hold words in mind predicted how disorganized the speech sounded.
How this fits with other research
Whitehouse et al. (2014) saw the same group struggle with verbal problem-solving. Both studies point to inner speech as the weak spot, not wide executive collapse.
Austin et al. (2015) showed adaptive skills slip as executive scores drop. Tim et al. now add that language oddities are part of that slide.
Rong (2024) also found working memory hurting Mandarin-speaking autistic kids on simple “this/that” tasks. The pattern crosses languages and tasks.
Why it matters
When you hear loose, tangled talk, do a quick verbal working memory probe. Ask the client to repeat a short sentence backwards or remember three words while answering a question. If memory is low, break your own language into smaller chunks, use visual cues, and give extra wait time. Targeting working memory with rehearsal or chunking games may tidy up both language and daily living skills.
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02At a glance
03Original abstract
Formal thought disorder (FTD) is a disruption in the flow of thought and a common feature in psychotic disorders and autism spectrum disorder (ASD). Executive dysfunction has often been associated with FTD, yet for ASD convincing evidence is lacking. This study investigated FTD and three core executive functions in 50 young children and adolescents with high-functioning ASD and 56 matched controls. Higher overall levels of FTD marked ASD compared to controls. Furthermore, in ASD decreased performance on verbal working memory was correlated with increased FTD ratings and explained a significant amount of variance of objective and subjective FTD. Verbal working memory is currently the most promising target executive function for understanding the development of idiosyncratic thought disorders in ASD.
Journal of autism and developmental disorders, 2017 · doi:10.3389/fpsyt.2013.00161