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Neuropsychology, Neuroimage and Neurophysiology in Adults With ADHD

NCT02642068 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 300

Last updated 2021-09-02

No results posted yet for this study

Summary

We anticipate that drug-naïve ADHD probands, particularly those with DAT1 or SLC6A2 gene variants may have higher level of altered microstructural integrity of frontostriatal (FS), frontoparietal (FP), other hypothesized fiber tracts and decreased brain activity of FS, FP, and other circuits, deficits in ERP, and impaired EF, SA, IIA and VM than probands without DAT1 or SLC6A2 gene variants or adult neurotypical. The alterations in the structural and functional connectivity, neurophysiological and neuropsychological functioning would be observed in the unaffected siblings as compared to neurotypical. The unaffected siblings will be in the intermediate position between drug-naïve adult ADHD probands and neurotypical. The genetic dosage is anticipated to pose the strongest effects on the cortical thickness, brain volume, gyrification and microstructural property of white matter, followed by neurophysiology, functional connectivity, and neuropsychological function with the least effect.

In terms of longitudinal follow-up part, we also anticipated despite increasing thinning of cortical thickness, microstructural integrity of several targets fiber tracts, and brain activity of target brain regions and improving performance in EF, SA, IIV, VM from childhood to late adolescence and young adulthood in the neurotypical group, the slopes of developmental trajectories of these neuroimaging and neuropsychological function are lower in the ADHD group.

Conditions

  • Attention Deficit Hyperactivity Disorder

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Susan Shur-Fen Gau, MD, PhD · National Taiwan University Hospital & College of Medicine

Eligibility

Min Age
16 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-08-01
Primary Completion
2019-07-31
Completion
2019-07-31

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02642068 on ClinicalTrials.gov