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Do cognitive deficits persist into adolescence in autism?
Cathriona Cantio1,2, Sarah White3, Gitte Falcher Madsen1
1Child and Adolescent Mental Health Odense, Mental Health Services Region of Southern Denmark, Odense, Denmark.
Summary
Cognitive development in Autism Spectrum Disorder (ASD) shows persistent deficits in Theory of Mind (ToM) from childhood to adolescence. Executive Functions (EF) improve in ASD, reaching neurotypical levels, while local processing bias differences diminish.
Area of Science:
- Neuroscience
- Developmental Psychology
- Child Psychiatry
Background:
- Autism Spectrum Disorders (ASD) are characterized by cognitive differences.
- Key theories include Theory of Mind (ToM), Executive Function (EF), and Local Processing Bias (LB).
- Longitudinal studies are crucial for understanding cognitive development in ASD.
Purpose of the Study:
- To investigate the developmental trajectories of ToM, EF, and LB in children with ASD and neurotypical development (NTD).
- To determine if cognitive differences persist or resolve into adolescence.
- To identify persistent cognitive deficits in ASD.
Main Methods:
- Longitudinal study tracking high-functioning children with ASD and matched NTD peers over approximately three years.
- Assessment of ToM, EF, and LB using validated tasks at baseline (ages 8-12) and follow-up (mean age 14.34).
- Comparison of cognitive development between ASD and NTD groups.
Main Results:
- ToM deficits persisted in adolescents with ASD compared to NTD peers, despite some improvement.
- Executive Function (EF) improved in the ASD group, leading to comparable performance with the NTD group by adolescence.
- No significant group differences in local processing bias (LB) were detected at either time point.
Conclusions:
- Theory of Mind (ToM) represents a persistent cognitive deficit in Autism Spectrum Disorder (ASD).
- Executive Functions (EF) show developmental improvement in ASD, potentially reaching neurotypical levels.
- Local processing bias (LB) does not appear to be a differentiating factor in adolescence for ASD.
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