title: Cognitive neuroscience of Attention Deficit Hyperactivity Disorder: current status and working hypotheses.
abstract: Cognitive neuroscience studies of Attention Deficit Hyperactivity Disorder (ADHD) suggest multiple loci of pathology with respect to both cognitive domains and neural circuitry. Cognitive deficits extend beyond executive functioning to include spatial, temporal, and lower-level "nonexecutive" functions. Atypical functional anatomy extends beyond frontostriatal circuits to include posterior cortices, limbic regions, and the cerebellum. Pathophysiology includes dopaminergic as well as noradrenergic neurotransmitter systems. We review the major insights gained from functional brain imaging studies in ADHD and discuss working hypotheses regarding their neurochemical underpinnings.
authors.affiliation: Department of Psychology, Georgetown University, Washington, DC 20057, USA. cjv2@georgetown.edu
authors.forename: Chandan J
authors.initials: CJ
authors.lastname: Vaidya
authors.forename: Melanie
authors.initials: M
authors.lastname: Stollstorff
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology*; D003072:Cognition Disorders / Q000453:epidemiology* / Q000503:physiopathology*; D003342:Corpus Striatum / Q000503:physiopathology; D005625:Frontal Lobe / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009415:Nerve Net / Q000503:physiopathology*; D009483:Neuropsychological Tests; D009488:Neurosciences; D010296:Parietal Lobe / Q000503:physiopathology; D013702:Temporal Lobe / Q000503:physiopathology