Cited by 198Obsessive-Compulsive Spectrum DisordersFunctional Brain Connectivity StudiesNeurological disorders and treatments

Reduced functional connectivity within the limbic cortico-striato-thalamo-cortical loop in unmedicated adults with obsessive-compulsive disorder

Open access
Posner, Jonathan, Marsh, Rachel, Maia, Tiago V., Peterson, Bradley S., Gruber, Allison, Simpson, H. Blair·2014·Human Brain Mapping

Abstract

Cortico‐striato‐thalamo‐cortical (CSTC) loops project from the cortex to the striatum, then from the striatum to the thalamus via the globus pallidus, and finally from the thalamus back to the cortex again. These loops have been implicated in Obsessive‐Compulsive Disorder (OCD) with particular focus on the limbic CSTC loop, which encompasses the orbitofrontal and anterior cingulate cortices, as well as the ventral striatum. Resting state functional‐connectivity MRI (rs‐fcMRI) studies, which examine temporal correlations in neural activity across brain regions at rest, have examined CSTC loop connectivity in patients with OCD and suggest hyperconnectivity within these loops in medicated adults with OCD. We used rs‐fcMRI to examine functional connectivity within CSTC loops in unmedicated adults with OCD (n = 23) versus healthy controls (HCs) (n = 20). Contrary to prior rs‐fcMRI studies in OCD patients on medications that report hyperconnectivity in the limbic CSTC loop, we found that compared with HCs, unmedicated OCD participants had reduced connectivity within the limbic CSTC loop. Exploratory analyses revealed that reduced connectivity within the limbic CSTC loop correlated with OCD symptom severity in the OCD group. Our finding of limbic loop hypoconnectivity in unmedicted OCD patients highlights the potential confounding effects of antidepressants on connectivity measures and the value of future examinations of the effects of pharmacological and/or behavioral treatments on limbic CSTC loop connectivity. Hum Brain Mapp 35:2852–2860, 2014. © 2013 Wiley Periodicals, Inc.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/hbm.22371

Cites

46 of 46 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Atmaca M Yildirim H Ozdemir H Tezcan E Kursad Poyraz A 2007b Volumetric MRI study of key brain regions implicated in obsessive–compulsive disorder Progr Neuro-Psychopharmacol Biol Psychiatr 31 46 52 16859819

Cited by

Sorted by citations

Authors
Posner, J., Marsh, R., Maia, T. V., Peterson, B. S., Gruber, A., & Simpson, H. B.
Affiliations
University of Lisbon (PT)
Venue
Human Brain Mapping
Publisher
Wiley
Published
2013-09-30
Volume
35
Issue
6
Pages
2852-2860
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W1914669721
Cited by
197
References
46
Citations by year
2026: 9 · 2025: 9 · 2024: 25 · 2023: 16 · 2022: 13 · 2021: 17 · 2020: 22 · 2019: 13 · 2018: 16 · 2017: 10 · 2016: 23 · 2015: 18 · 2014: 6
FWCI
17.41
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5k02mh074677-05)
  • National Institute of Mental Health (K02 MH-74677, K24MH091555, R21MH093889, K23MH091249, K02-MH-074677)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
obsessive-compulsive disorder, cortico-striato-thalamo-cortical loop, resting-state functional connectivity, hypoconnectivity, unmedicated patients, orbitofrontal cortex, anterior cingulate cortex, ventral striatum, globus pallidus, symptom severity
MeSH terms
Adult, Brain, Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways, Obsessive-Compulsive Disorder, Psychiatric Status Rating Scales, Rest, Young Adult

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review