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Direct linkLaBianca, Sonja; LaBianca, Jette; Pagsberg, Anne Katrine; Jakobsen, Klaus Damgaard; Appadurai, Vivek; Buil, Alfonso; Werge, Thomas – Journal of Autism and Developmental Disorders, 2021
Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) are highly heritable neurodevelopmental disorders that frequently co-occur. Both rare and common genetic variants are important for ASD and ADHD risk but their combined contribution to clinical heterogeneity is unclear. In a sample of 39 ASD and/or ADHD families we…
Descriptors: Autism, Pervasive Developmental Disorders, Attention Deficit Hyperactivity Disorder, Comorbidity
Daucourt, Mia C.; Erbeli, Florina; Little, Callie W.; Haughbrook, Rasheda; Hart, Sara A. – Scientific Studies of Reading, 2020
According to the Multiple Deficit Model, comorbidity results when the genetic and environmental risk factors that increase the liability for a disorder are domain-general. In order to explore the role of domain-general etiological risk factors in the co-occurrence of learning-related difficulties, the current meta-analysis compiled 38 studies of…
Descriptors: Learning Problems, Attention Deficit Hyperactivity Disorder, Reading Skills, Mathematics Skills
Kan, Kees-Jan; Dolan, Conor V.; Nivard, Michel G.; Middeldorp, Christel M.; van Beijsterveldt, Catharina E. M.; Willemsen, Gonneke; Boomsma, Dorret I. – Journal of the American Academy of Child & Adolescent Psychiatry, 2013
Objective: To review findings on attention-deficit/hyperactivity disorder and attention problems (AP) in children, adolescents, and adults, as established in the database of the Netherlands Twin Register and increase the understanding of stability in AP across the lifespan as a function of genetic and environmental influences. Method: A…
Descriptors: Attention Deficit Hyperactivity Disorder, Genetics, Foreign Countries, Environmental Influences
Niklasson, Lena; Gillberg, Christopher – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
The primary objective of this study was to study the impact of ASD/ADHD on general intellectual ability and profile, executive functions and visuo-motor skills in children and adults with 22q11 deletion syndrome (22q11DS). A secondary aim was to study if gender, age, heart disease, ASD, ADHD or ASD in combination with ADHD had an impact on general…
Descriptors: Heart Disorders, Intelligence Quotient, Neuropsychology, Etiology
Dodd, Helen F.; Porter, Melanie A. – Journal of Mental Health Research in Intellectual Disabilities, 2009
This research aimed to comprehensively explore psychopathology in Williams syndrome (WS) across the life span and evaluate the relationship between psychopathology and age category (child or adult), gender, and cognitive ability. The parents of 50 participants with WS, ages 6-50 years, were interviewed using the Schedule for Affective Disorders…
Descriptors: Mental Disorders, Attention Deficit Hyperactivity Disorder, Psychopathology, Cognitive Ability
Nijmeijer, J. S.; Hoekstra, P. J.; Minderaa, R. B.; Buitelaar, J. K.; Altink, M. E.; Buschgens, C. J. M.; Fliers, E. A.; Rommelse, N. N. J.; Sergeant, J. A.; Hartman, C. A. – Journal of Abnormal Child Psychology, 2009
The aims of this study were to investigate whether subtle PDD symptoms in the context of ADHD are transmitted in families independent of ADHD, and whether PDD symptom familiality is influenced by gender and age. The sample consisted of 256 sibling pairs with at least one child with ADHD and 147 healthy controls, aged 5-19 years. Children who…
Descriptors: Siblings, Social Behavior, Attention Deficit Hyperactivity Disorder, Anxiety
