title: Response inhibition in Attention deficit disorder and neurofibromatosis type 1 - clinically similar, neurophysiologically different.
abstract: There are large overlaps in cognitive deficits occurring in attention deficit disorder (ADD) and neurodevelopmental disorders like neurofibromatosis type 1 (NF1). This overlap is mostly based on clinical measures and not on in-depth analyses of neuronal mechanisms. However, the consideration of such neuronal underpinnings is crucial when aiming to integrate measures that can lead to a better understanding of the underlying mechanisms. Inhibitory control deficits, for example, are a hallmark in ADD, but it is unclear how far there are similar deficits in NF1. We thus compared adolescent ADD and NF1 patients to healthy controls in a Go/Nogo task using behavioural and neurophysiological measures. Clinical measures of ADD-symptoms were not different between ADD and NF1. Only patients with ADD showed increased Nogo errors and reductions in components reflecting response inhibition (i.e. Nogo-P3). Early perceptual processes (P1) were changed in ADD and NF1. Clinically, patients with ADD and NF1 thus show strong similarities. This is not the case in regard to underlying cognitive control processes. This shows that in-depth analyses of neurophysiological processes are needed to determine whether the overlap between ADD and NF1 is as strong as assumed and to develop appropriate treatment strategies.
authors.affiliation: Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine to the TU Dresden, Germany.
authors.forename: Annet
authors.initials: A
authors.lastname: Bluschke
authors.affiliation: Abteilung Neuropädiatrie, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Germany.
authors.forename: Maja
authors.initials: M
authors.lastname: von der Hagen
authors.affiliation: Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine to the TU Dresden, Germany.
authors.forename: Katharina
authors.initials: K
authors.lastname: Papenhagen
authors.affiliation: Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine to the TU Dresden, Germany.
authors.forename: Veit
authors.initials: V
authors.lastname: Roessner
authors.affiliation: Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine to the TU Dresden, Germany.|Experimental Neurobiology, National Institute of Mental Health, Czech Republic, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Beste
mesh_terms: D000293:Adolescent; D001289:Attention Deficit Disorder with Hyperactivity / Q000473:pathology* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D009456:Neurofibromatosis 1 / Q000473:pathology* / Q000503:physiopathology*; D009483:Neuropsychological Tests