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Margolis, Amy E.; Davis, Katie S.; Pao, Lisa S.; Lewis, Amy; Yang, Xiao; Tau, Gregory; Zhao, Guihu; Wang, Zhishun; Marsh, Rachel – Developmental Science, 2018
Verbal--spatial discrepancies are common in healthy individuals and in those with neurodevelopmental disorders associated with cognitive control deficits including: Autism Spectrum Disorder, Non-Verbal Learning Disability, Fragile X, 22q11 deletion, and Turner Syndrome. Previous data from healthy individuals suggest that the magnitude of the…
Descriptors: Verbal Ability, Spatial Ability, Autism, Pervasive Developmental Disorders
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Bedford, Rachael; Pickles, Andrew; Gliga, Teodora; Elsabbagh, Mayada; Charman, Tony; Johnson, Mark H. – Developmental Science, 2014
Emerging findings from studies with infants at familial high risk for autism spectrum disorder (ASD), owing to an older sibling with a diagnosis, suggest that those who go on to develop ASD show early impairments in the processing of stimuli with both social and non-social content. Although ASD is defined by social-communication impairments and…
Descriptors: Infants, Autism, Attention, Eye Movements
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Thomas, Michael S. C.; Davis, Rachael; Karmiloff-Smith, Annette; Knowland, Victoria C. P.; Charman, Tony – Developmental Science, 2016
This article outlines the "over-pruning hypothesis" of autism. The hypothesis originates in a neurocomputational model of the regressive sub-type (Thomas, Knowland & Karmiloff-Smith, 2011a, 2011b). Here we develop a more general version of the over-pruning hypothesis to address heterogeneity in the timing of manifestation of ASD,…
Descriptors: Autism, Pervasive Developmental Disorders, Computer Simulation, Symptoms (Individual Disorders)
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Ronald, Angelica; Happe, Francesca; Plomin, Robert – Developmental Science, 2005
Two types of behaviours shown in children--those reflecting social impairment and nonsocial obsessive repetitive behaviours--are central to defining and diagnosing autism spectrum disorders (ASDs). Parent and teacher data on social and nonsocial behaviours were obtained from a community sample of greater than 3000 7-year-old twin pairs. Social and…
Descriptors: Twins, Autism, Genetics, Individual Differences