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Showing 1 to 15 of 34 results Save | Export
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Nijmeijer, Judith S.; Arias-Vásquez, Alejandro; Rommelse, Nanda N.; Altink, Marieke E.; Buschgens, Cathelijne J.; Fliers, Ellen A.; Franke, Barbara; Minderaa, Ruud B.; Sergeant, Joseph A.; Buitelaar, Jan K.; Hoekstra, Pieter J.; Hartman, Catharina A. – Journal of Autism and Developmental Disorders, 2014
We studied 261 ADHD probands and 354 of their siblings to assess quantitative trait loci associated with autism spectrum disorder symptoms (as measured by the Children's Social Behavior Questionnaire (CSBQ) using a genome-wide linkage approach, followed by locus-wide association analysis. A genome-wide significant locus for the CSBQ subscale…
Descriptors: Attention Deficit Hyperactivity Disorder, Comorbidity, Siblings, Autism
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van Meel, Catharina S.; Heslenfeld, Dirk J.; Oosterlaan, Jaap; Luman, Marjolein; Sergeant, Joseph A. – Journal of Child Psychology and Psychiatry, 2011
Background: Several models of attention-deficit hyperactivity disorder (ADHD) propose abnormalities in the response to behavioural contingencies. Using event-related potentials (ERPs), the present study investigated the monitoring and subsequent evaluation of performance feedback resulting in either reward or punishment in children with ADHD (N =…
Descriptors: Attention Deficit Hyperactivity Disorder, Feedback (Response), Rewards, Punishment
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Cheung, Celeste H. M.; Wood, Alexis C.; Paloyelis, Yannis; Arias-Vasquez, Alejandro; Buitelaar, Jan K.; Franke, Barbara; Miranda, Ana; Mulas, Fernando; Rommelse, Nanda; Sergeant, Joseph A.; Sonuga-Barke, Edmund J.; Faraone, Stephen V.; Asherson, Philip; Kuntsi, Jonna – Journal of Child Psychology and Psychiatry, 2012
Background: Twin studies using both clinical and population-based samples suggest that the frequent co-occurrence of attention deficit hyperactivity disorder (ADHD) and reading ability/disability (RD) is largely driven by shared genetic influences. While both disorders are associated with lower IQ, recent twin data suggest that the shared genetic…
Descriptors: Attention Deficit Hyperactivity Disorder, Reading Difficulties, Siblings, Intelligence Quotient
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Nijmeijer, Judith S.; Arias-Vasquez, Alejandro; Rommelse, Nanda N. J.; Altink, Marieke E.; Anney, Richard J. L.; Asherson, Philip; Banaschewski, Tobias; Buschgens, Cathelijne J. M.; Fliers, Ellen A.; Gill, Michael; Minderaa, Ruud B.; Poustka, Luise; Sergeant, Joseph A.; Buitelaar, Jan K.; Franke, Barbara; Ebstein, Richard P.; Miranda, Ana; Mulas, Fernando; Oades, Robert D.; Roeyers, Herbert; Rothenberger, Aribert; Sonuga-Barke, Edmund J. S.; Steinhausen, Hans-Christoph; Faraone, Stephen V.; Hartman, Catharina A.; Hoekstra, Pieter J. – Journal of the American Academy of Child & Adolescent Psychiatry, 2010
Objective: The genetic basis for autism spectrum disorder (ASD) symptoms in children with attention-deficit/hyperactivity disorder (ADHD) was addressed using a genome-wide linkage approach. Method: Participants of the International Multi-Center ADHD Genetics study comprising 1,143 probands with ADHD and 1,453 siblings were analyzed. The total and…
Descriptors: Attention Deficit Hyperactivity Disorder, Siblings, Autism, Genetics
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van Mourik, Rosa; Sergeant, Joseph A.; Heslenfeld, Dirk; Konig, Claudia; Oosterlaan, Jaap – Journal of Child Psychology and Psychiatry, 2011
Background: Impaired cognitive control has been implicated as an important developmental pathway to attention deficit/hyperactivity disorder (ADHD). Cognitive control is crucial to suppress interference resulting from conflicting information and can be measured by Stroop-like tasks. This study was conducted to gain insight into conflict processing…
Descriptors: Attention Deficit Hyperactivity Disorder, Conflict, Cognitive Processes, Diagnostic Tests
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Banaschewski, Tobias; Jennen-Steinmetz, Christine; Brandeis, Daniel; Buitelaar, Jan K.; Kuntsi, Jonna; Poustka, Luise; Sergeant, Joseph A.; Sonuga-Barke, Edmund J.; Frazier-Wood, Alexis C.; Albrecht, Bjorn; Chen, Wai; Uebel, Henrik; Schlotz, Wolff; van der Meere, Jaap J.; Gill, Michael; Manor, Iris; Miranda, Ana; Mulas, Fernando; Oades, Robert D.; Roeyers, Herbert; Rothenberger, Aribert; Steinhausen, Hans-Christoph; Faraone, Stephen V.; Asherson, Philip – Journal of Child Psychology and Psychiatry, 2012
Background: Emotional lability (EL) is commonly seen in patients with attention-deficit/hyperactivity disorder (ADHD). The reasons for this association remain currently unknown. To address this question, we examined the relationship between ADHD and EL symptoms, and performance on a range of neuropsychological tasks to clarify whether EL symptoms…
Descriptors: Attention Deficit Hyperactivity Disorder, Siblings, Severity (of Disability), Patients
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Nijmeijer, Judith S.; Hartman, Catharina A.; Rommelse, Nanda N. J.; Altink, Marieke E.; Buschgens, Cathelijne J. M.; Fliers, Ellen A.; Franke, Barbara; Minderaa, Ruud B.; Ormel, Johan; Sergeant, Joseph A.; Verhulst, Frank C.; Buitelaar, Jan K.; Hoekstra, Pieter J. – Journal of Child Psychology and Psychiatry, 2010
Background: Symptoms of autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD) often co-occur. Given the previously found familiality of ASD symptoms in children with ADHD, addressing these symptoms may be useful for genetic association studies, especially for candidate gene findings that have not been consistently…
Descriptors: Body Weight, Social Behavior, Smoking, Autism
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van Mourik, Rosa; Papanikolau, Alky; van Gellicum-Bijlhout, Joyce; van Oostenbruggen, Janneke; Veugelers, Diane; Post-Uiterweer, Annebeth; Sergeant, Joseph A.; Oosterlaan, Jaap – Journal of Abnormal Child Psychology, 2009
The view that Attention Deficit/Hyperactivity Disorder (ADHD) is associated with a diminished ability to control interference is controversial and based exclusively on results of (verbal)-visual interference tasks, primarily the Stroop Color Word task. The present study compares medication-naive children with ADHD (n = 35 and n = 51 in Experiments…
Descriptors: Attention Deficit Hyperactivity Disorder, Color, Comparative Analysis, Visual Stimuli
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Geurts, Hilde M.; Hartman, Catharina; Verte, Sylvie; Oosterlaan, Jaap; Roeyers, Herbert; Sergeant, Joseph A. – International Journal of Language & Communication Disorders, 2009
Background: A number of disorders are associated with pragmatic difficulties. Instruments that can make subdivisions within the larger construct of pragmatics could be important tools for disentangling profiles of pragmatic difficulty in different disorders. The deficits underlying the observed pragmatic difficulties may be different for different…
Descriptors: Check Lists, Construct Validity, Factor Structure, Clinical Diagnosis
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Luman, Marjolein; van Noesel, Steffen J. P.; Papanikolau, Alky; Van Oostenbruggen-Scheffer, Janneke; Veugelers, Diane; Sergeant, Joseph A.; Oosterlaan, Jaap – Journal of Abnormal Child Psychology, 2009
This study compared children with ADHD-only, ADHD+ODD and normal controls (age 8-12) on three key neurocognitive functions: response inhibition, reinforcement sensitivity, and temporal information processing. The goal was twofold: (a) to investigate neurocognitive impairments in children with ADHD-only and children with ADHD+ODD, and (b) to test…
Descriptors: Attention Deficit Disorders, Inhibition, Rewards, Cognitive Processes
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de Jong, Christien G. W.; Van De Voorde, Severine; Roeyers, Herbert; Raymaekers, Ruth; Oosterlaan, Jaap; Sergeant, Joseph A. – Journal of Abnormal Child Psychology, 2009
The nature of the comorbidity between Attention-Deficit/Hyperactivity Disorder (ADHD) and Reading Disability (RD) was examined using a double dissociation design. Children were between 8 and 12 years of age and entered into four groups: ADHD only (n = 24), ADHD+RD (n = 29), RD only (n = 41) and normal controls (n = 26). In total, 120 children…
Descriptors: Hyperactivity, Inhibition, Short Term Memory, Language Processing
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Rommelse, Nanda N. J.; Altink, Marieke E.; Fliers, Ellen A.; Martin, Neilson C.; Buschgens, Cathelijne J. M.; Hartman, Catharina A.; Buitelaar, Jan K.; Faraone, Stephen V.; Sergeant, Joseph A.; Oosterlaan, Jaap – Journal of Abnormal Child Psychology, 2009
We aimed to assess which comorbid problems (oppositional defiant behaviors, anxiety, autistic traits, motor coordination problems, and reading problems) were most associated with Attention-Deficit/Hyperactivity Disorder (ADHD); to determine whether these comorbid problems shared executive and motor problems on an endophenotype level with ADHD; and…
Descriptors: Behavior Problems, Siblings, Hyperactivity, Anxiety
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De Zeeuw, Patrick; Aarnoudse-Moens, Cornelieke; Bijlhout, Joyce; Konig, Claudia; Uiterweer, Annebeth Post; Papanikolau, Alky; Hoogenraad, Caecilia; Imandt, Lieke; De Been, Debbie; Sergeant, Joseph A.; Oosterlaan, Jaap – Journal of the American Academy of Child & Adolescent Psychiatry, 2008
The study aims to investigate the influence of inhibitory performance, response speed, intraindividual variability and response accuracy in distinguishing children from those with Attention-deficit/Hyperactivity (ADHD) syndrome from normal healthy children. The results conclude that there exist large number of differences in the symptoms between…
Descriptors: Symptoms (Individual Disorders), Hyperactivity, Attention Deficit Disorders, Inhibition
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Luman, Marjolein; Oosterlaan, Jaap; Hyde, Christopher; van Meel, Catharina S.; Sergeant, Joseph A. – Journal of Child Psychology and Psychiatry, 2007
Background: Both theoretical and clinical accounts of attention-deficit/hyperactivity disorder (ADHD) implicate a dysfunctional reinforcement system. This study investigated heart rate parameters in response to feedback associated with reward and response cost in ADHD children and controls aged 8 to 12. Methods: Heart rate responses (HRRs)…
Descriptors: Metabolism, Attention Deficit Hyperactivity Disorder, Reinforcement, Children
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Luman, Marjolein; Oosterlaan, Jaap; Sergeant, Joseph A. – Journal of Abnormal Child Psychology, 2008
The present study investigated the impact of reinforcement valence and magnitude on response timing in children with ADHD. Children were required to estimate a 1-s interval, and both the median response time (response tendency) and the intrasubject-variability (response stability) were investigated. In addition, heart rate and skin conductance…
Descriptors: Metabolism, Reaction Time, Attention Deficit Disorders, Feedback (Response)
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