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Ronald, Angelica; Simonoff, Emily; Kuntsi, Jonna; Asherson, Philip; Plomin, Robert – Journal of Child Psychology and Psychiatry, 2008
Background: High levels of clinical comorbidity have been reported between autistic spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD). This study takes an individual differences approach to determine the degree of phenotypic and aetiological overlap between autistic traits and ADHD behaviours in the general population.…
Descriptors: Twins, Autism, Asperger Syndrome, Psychologists