Neural correlates (ERP/fMRI) of voluntary selection in adult ADHD patients

  • Susanne Karch
  • Tobias Thalmeier
  • Jürgen Lutz
  • Anja Cerovecki
  • Markus Opgen-Rhein
  • Bettina Hock
  • Gregor Leicht
  • Kristina Hennig-Fast
  • Thomas Meindl
  • Michael Riedel
  • Christoph Mulert
  • Oliver Pogarell
Original Paper

DOI: 10.1007/s00406-009-0089-y

Cite this article as:
Karch, S., Thalmeier, T., Lutz, J. et al. Eur Arch Psychiatry Clin Neurosci (2010) 260: 427. doi:10.1007/s00406-009-0089-y

Abstract

Deficits in executive functions, e.g. voluntary selection, are considered central to the attention-deficit/hyperactivity disorder (ADHD). The aim of this simultaneous EEG/fMRI study was to examine associated neural correlates in ADHD patients. Patients with ADHD and healthy subjects performed an adapted go/nogo task including a voluntary selection condition allowing participants to freely decide, whether to press the response button. Electrophysiologically, response inhibition and voluntary selection led to fronto-central responses. The fMRI data revealed increased medial/lateral frontal and parietal activity during the voluntary selection task. Frontal brain responses were reduced in ADHD patients compared to controls during free responses, whereas parietal brain functions seemed to be unaffected. These results may indicate that selection processes are related to dysfunctions, predominantly in frontal brain regions in ADHD patients.

Keywords

Voluntary selectionADHDEEG–fMRI

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Susanne Karch
    • 1
  • Tobias Thalmeier
    • 1
  • Jürgen Lutz
    • 2
  • Anja Cerovecki
    • 1
  • Markus Opgen-Rhein
    • 1
  • Bettina Hock
    • 1
  • Gregor Leicht
    • 1
  • Kristina Hennig-Fast
    • 1
  • Thomas Meindl
    • 2
  • Michael Riedel
    • 1
  • Christoph Mulert
    • 1
  • Oliver Pogarell
    • 1
  1. 1.Department of Psychiatry and PsychotherapyLudwig-Maximilians-University MunichMunichGermany
  2. 2.Institute of Clinical RadiologyLudwig-Maximilians-UniversityMunichGermany