Journal
JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY
Volume 56, Issue 8, Pages 893-902Publisher
WILEY
DOI: 10.1111/jcpp.12362
Keywords
Autism spectrum disorder; cognition; theory of mind; executive function; weak central coherence
Categories
Funding
- MRC [G0500079, G0500870]
- Autism Speaks grant
- National Institutes of Health (NIH)
- MRC [G0901245, G0500079, G0500870, G9817803] Funding Source: UKRI
- Medical Research Council [G0500870, G9817803B, G9817803, G0500079, G0901245] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0510-10268] Funding Source: researchfish
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BackgroundThe behavioural symptoms of autism spectrum disorder (ASD) are thought to reflect underlying cognitive deficits/differences. The findings in the literature are somewhat mixed regarding the cognitive features of ASD. This study attempted to address this issue by investigating a range of cognitive deficits and the prevalence of multiple cognitive atypicalities in a large population-based sample comprising children with ASD, their unaffected co-twins, and typically developing comparison children. MethodsParticipants included families from the Twins Early Development Study (TEDS) where one or both children met diagnostic criteria for ASD. Overall, 181 adolescents with a diagnosis of ASD and 73 unaffected co-twins were included, plus an additional 160 comparison control participants. An extensive cognitive battery was administered to measure IQ, central coherence, executive function, and theory of mind ability. ResultsDifferences between groups (ASD, co-twin, control) are reported on tasks assessing theory of mind, executive function, and central coherence. The ASD group performed atypically in significantly more cognitive tasks than the unaffected co-twin and control groups. Nearly a third of the ASD group presented with multiple cognitive atypicalities. ConclusionsMultiple cognitive atypicalities appear to be a characteristic, but not universal feature, of ASD. Further work is needed to investigate whether specific cognitive atypicalities, either alone or together, are related to specific behaviours characteristic of ASD.
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