Cited by 55Attention Deficit Hyperactivity DisorderFunctional Brain Connectivity StudiesNeural dynamics and brain function

Atypical coupling between posterior regions of the default mode network in attention-deficit/hyperactivity disorder: a pharmaco-magnetoencephalography study

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Franzen, John D., Heinrichs-Graham, Elizabeth, White, Matthew L., Wetzel, Martin W., Knott, Nichole L., Wilson, Tony W.·2013·Journal of Psychiatry and Neuroscience

Abstract

BACKGROUND: Dysfunction in the default mode network (DMN), a group of cortical areas more active during the resting state, has been linked to attentional deficits and symptoms associated with attention-deficit/hyperactivity disorder (ADHD). Prior imaging studies have shown decreased functional connectivity between DMN nodes in patients with ADHD, primarily between anterior and posterior regions. Using magnetoencephalography (MEG), we evaluated phase coherence (i.e., functional connectivity) among regions of the DMN in healthy controls and adults with ADHD before and after stimulant therapy. METHODS: We obtained a resting-state MEG recording for all participants. Magnetoencephalography data were transformed into a ~30 node regional source model using inverse spatial filtering, including regions corresponding to the DMN. We computed the zero-lag phase coherence between these regions pairwise for 5 distinct frequency bands, and we assessed group and medication effects. RESULTS: Twelve adults with and 13 without ADHD participated in our study. Functional connectivity was stronger between particular node pairs and showed frequency-specific effects. Unmedicated patients showed reduced phase locking between posterior cingulate/precuneus regions (PCC) and right inferior parietal cortices (RIPL), and between medial prefrontal regions (MPFC) and the left inferior parietal region (LIPL) and the PCC. Unmedicated patients had increased phase locking between the RIPL and LIPL regions compared with controls. Administration of stimulants improved phase locking abnormalities along the MPFC-PCC and LIPL-RIPL pathways in patients with ADHD. LIMITATIONS: Modest sample size and lack of duration of patient treatment history may limit the generalizability of our findings. CONCLUSION: Adults with ADHD exhibit hyper- and hypoconnectivity between regions of the DMN during rest, which were suppressed after stimulant medication administration.

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Authors
Franzen, J. D., Heinrichs-Graham, E., White, M. L., Wetzel, M. W., Knott, N. L., & Wilson, T. W.
Affiliations
  • Creighton University (US)
  • Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, Neb.
Venue
Journal of Psychiatry and Neuroscience
Published
2013-09
Volume
38
Issue
5
Pages
333-340
ISSN
  • 1180-4882 (ISSN-L)
  • 1488-2434
OpenAlex
W2153900010
Cited by
55
References
45
Citations by year
2026: 1 · 2025: 4 · 2024: 2 · 2023: 5 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 4 · 2016: 8 · 2015: 3 · 2014: 8 · 2013: 3
FWCI
5.21
Type
journal article
Language
en
Open access
Locations
  • Journal of Psychiatry and Neuroscience (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (F32MH078359)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
attention deficit hyperactivity disorder, default mode network, functional connectivity, phase coherence, posterior cingulate cortex, precuneus, inferior parietal cortex, medial prefrontal cortex, stimulant medication, resting-state brain activity, adult ADHD
MeSH terms
Adult, Amphetamines, Attention Deficit Disorder with Hyperactivity, Cerebral Cortex, Female, Humans, Male, Neural Pathways, Rest, Case-Control Studies, Functional Neuroimaging

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