Inhibitory control and adaptive behaviour in children with mild intellectual disability.
In kids with mild ID, poor self-control predicts weaker daily-living, language, and number skills.
01Research in Context
What this study did
Whitehouse et al. (2014) tested 53 children with mild intellectual disability.
They asked: does poor inhibitory control predict weaker daily-living, language, and number skills?
Kids completed stop-signal tasks and standard adaptive-skill checklists.
What they found
Lower inhibitory-control scores matched lower scores on every adaptive area.
The link stayed strong even after IQ was counted out.
How this fits with other research
Danielsson et al. (2012) had already shown that inhibition is the weakest EF in mild-ID kids.
Whitehouse et al. (2014) move that profile from description to prediction: weak inhibition now forecasts real-life skill gaps.
Bouck et al. (2016) extend the idea into math class.
They found that once inhibition problems hit a clinical level, IQ no longer helps math scores.
Together the three papers draw a straight line: poor inhibition → weaker adaptive and academic outcomes.
Moya et al. (2022) repeat the pattern in Down syndrome, showing the link is not limited to mild-ID labels.
Why it matters
Screen inhibition early in your mild-ID caseload.
A quick stop-signal or go/no-go task tells you which kids are at risk for slow progress in dressing, speaking, counting, and later math.
Fold inhibition practice—red-light games, delayed gratification drills—into daily living and academic programs.
Boosting inhibition may open the door to wider adaptive gains.
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02At a glance
03Original abstract
BACKGROUND: Inhibitory control, as one of the basic mechanisms of executive functions, is extremely important for adaptive behaviour. The relation between inhibitory control and adaptive behaviour is the most obvious in cases of behavioural disorders and psychopathology. Considering the lack of studies on this relation in children with disabilities, the aim of our research is to determine the relation between inhibitory control and adaptive behaviour in children with mild intellectual disability. METHOD: The sample consists of 53 children with mild intellectual disability. Selection criteria were: IQ between 50 and 70, age between 10 and 14, absence of bilingualism, and with no medical history of neurological impairment, genetic and/or emotional problems. Modified Day-Night version of the Stroop task, and Go-no-Go Tapping task were used for the assessment of inhibitory control. Data on adaptive behaviour were obtained by applying the first part of AAMR (American Association on Mental Retardation) Adaptive Behaviour Scale-School, Second Edition (ABS-S:2). RESULTS: Significant relationships were determined between some aspects of inhibitory control and the most of assessed domains of adaptive behaviour. Inhibitory control measures, as a unitary inhibition model, significantly predict results on Independent Functioning, Economic Activity, Speech and Language Development, and Number and Times domains of the ABS-S:2. Inhibitory control, assessed by second part of the Stroop task, proved to be a significant factor in practical (Independent Functioning) and conceptual (Economic Activity, Speech and Language Development, and Numbers and Time) adaptive skills. The first part of the Stroop task, as a measure of selective attention, proved to be a significant factor in language and numerical demands, along with second one. Inhibitory control through motor responses proved to be a significant factor in independent functioning, economic activities, language and self-direction skills. CONCLUSION: We can conclude that inhibitory control represents a significant developmental factor of different adaptive behaviour domains in children with mild intellectual disability.
Journal of intellectual disability research : JIDR, 2014 · doi:10.1111/jir.12000