Cognitive neuroscience of Attention Deficit Hyperactivity Disorder: current status and working hypotheses
- PMID: 19072750
- PMCID: PMC4437560
- DOI: 10.1002/ddrr.40
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.
References
-
- Arnsten AF. Stimulants: therapeutic actions in ADHD. Neuropsychopharmacology. 2006;31:2376–2383. - PubMed
-
- Aston-Jones G, Cohen JD. An integrative theory of locus coeruleus–norepinephrine function: adaptive gain and optimal performance. Annu Rev Neurosci. 2005;28:403–450. - PubMed
-
- Bellgrove MA, Chambers CD, Johnson KA, et al. Dopaminergic genotype biases spatial attention in healthy children. Mol Psychiatry. 2007;12:786–792. - PubMed
-
- Bellgrove MA, Hawi Z, Kirley A, et al. Dissecting the attention deficit hyperactivity disorder (ADHD) phenotype: sustained attention, response variability and spatial attentional asymmetries in relation to dopamine transporter (DAT1) genotype. Neuropsychologia. 2005;43:1847–1857. - PubMed
-
- Berridge CW, Devilbiss DM, Andrzejewski ME, et al. Methylphenidate preferentially increases catecholamine neurotransmission within the prefrontal cortex at low doses that enhance cognitive function. Biol Psychiatry. 2006;60:1111–1120. - PubMed
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