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- W2113328265 abstract "Background Patients with attention deficit-hyperactivity disorder (ADHD) exhibit difficulties in multiple attentional functions. Although high heritability rates suggest a strong genetic impact, aetiological pathways from genes and environmental factors to the ADHD phenotype are not well understood. Tracking the time course of deviant task processing using event-related electrophysiological brain activity should characterize the impact of familiality on the sequence of cognitive functions from preparation to response control in ADHD. Method Preparation and response control were assessed using behavioural and electrophysiological parameters of two versions of a cued continuous performance test with varying attentional load in boys with ADHD combined type ( n = 97), their non-affected siblings ( n = 27) and control children without a family history of ADHD ( n = 43). Results Children with ADHD and non-affected siblings showed more variable performance and made more omission errors than controls. The preparatory Cue-P3 and contingent negative variation (CNV) following cues were reduced in both ADHD children and their non-affected siblings compared with controls. The NoGo-P3 was diminished in ADHD compared with controls whilst non-affected siblings were located intermediate but did not differ from both other groups. No clear familiality effects were found for the Go-P3. Better task performance was further associated with higher CNV and P3 amplitudes. Conclusions Impairments in performance and electrophysiological parameters reflecting preparatory processes and to some extend also for inhibitory response control, especially under high attentional load, appeared to be familially driven in ADHD and may thus constitute functionally relevant endophenotypes for the disorder." @default.
- W2113328265 created "2016-06-24" @default.
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- W2113328265 date "2012-12-03" @default.
- W2113328265 modified "2023-10-07" @default.
- W2113328265 title "Familiality of neural preparation and response control in childhood attention deficit-hyperactivity disorder" @default.
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- W2113328265 doi "https://doi.org/10.1017/s003329171200270x" @default.
- W2113328265 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23200032" @default.
- W2113328265 hasPublicationYear "2012" @default.
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