Altered resting-state functional connectivity in patients with obsessive–compulsive disorder: A magnetoencephalography study

Min Jung Koh, Jaeho Seol, Jee In Kang, Bong Soo Kim, Kee Namkoong, Jin Woo Chang, Se Joo Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Aberrant cortical–striatal–thalamic–cortical circuits have been implicated in the pathophysiology of obsessive − compulsive disorder (OCD). However, the neurobiological basis of OCD remains unclear. We compared patterns of functional connectivity in patients with OCD and in healthy controls using resting-state magnetoencephalography (MEG). Participants comprised 24 patients with OCD (21 men, 3 women) and 22 age- and sex-matched healthy controls (19 men, 3 women). Resting-state measurements were obtained over a 6-min period using a 152-channel whole-head MEG system. We examined group differences in oscillatory activity and distribution of functional cortical hubs based on the nodal centrality of phase-locking value (PLV) maps. Differences in resting-state functional connectivity were examined through PLV analysis in selected regions of interest based on these two findings. Patients with OCD demonstrated significantly lower delta band activity in the cortical regions of the limbic lobe, insula, orbitofrontal, and temporal regions, and theta band activity in the parietal lobe regions than healthy controls. Patients with OCD exhibited fewer functional hubs in the insula and orbitofrontal cortex and additional hubs in the cingulate and temporo-parietal regions. The OCD group exhibited significantly lower phase synchronization among the insula, orbitofrontal cortex, and cortical regions of the limbic lobe in all band frequencies, except in the delta band. Altered functional networks in the resting state may be associated with the pathophysiology of OCD. These MEG findings indicate that OCD is associated with decreased functional connectivity in terms of phase synchrony, particularly in the insula, orbitofrontal cortex, and cortical regions of the limbic lobe.

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalInternational Journal of Psychophysiology
Volume123
DOIs
Publication statusPublished - 2018 Jan

Fingerprint

Magnetoencephalography
Obsessive-Compulsive Disorder
Prefrontal Cortex
Parietal Lobe
Temporal Lobe
Head

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Physiology (medical)

Cite this

Koh, Min Jung ; Seol, Jaeho ; Kang, Jee In ; Kim, Bong Soo ; Namkoong, Kee ; Chang, Jin Woo ; Kim, Se Joo. / Altered resting-state functional connectivity in patients with obsessive–compulsive disorder : A magnetoencephalography study. In: International Journal of Psychophysiology. 2018 ; Vol. 123. pp. 80-87.
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Altered resting-state functional connectivity in patients with obsessive–compulsive disorder : A magnetoencephalography study. / Koh, Min Jung; Seol, Jaeho; Kang, Jee In; Kim, Bong Soo; Namkoong, Kee; Chang, Jin Woo; Kim, Se Joo.

In: International Journal of Psychophysiology, Vol. 123, 01.2018, p. 80-87.

Research output: Contribution to journalArticle

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