Evidence map›Paper›PMID 22870191›Full record

Trial reportPloS one2012

The role of corpus callosum development in functional connectivity and cognitive processing.

Leighton B N Hinkley, Elysa J Marco, Anne M Findlay, Susanne Honma, Rita J Jeremy, Zoe Strominger, Polina Bukshpun, Mari Wakahiro, Warren S Brown, Lynn K Paul and 4 more

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

90 citing papers in PubMed.

  1. Trial
  2. Trial
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  7. Article
  8. Prenatal evaluation, diagnosis and management of fetal corpus callosal abnormalities: international Delphi consensus.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2025
    Article
  9. Article
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  15. Article
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  18. Review
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  20. Article

30 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Leighton B N HinkleyDepartment of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, United States of America.
Elysa J Marco
Anne M Findlay
Susanne Honma
Rita J Jeremy
Zoe Strominger
Polina Bukshpun
Mari Wakahiro
Warren S Brown
Lynn K Paul
A James Barkovich
Pratik Mukherjee
Srikantan S Nagarajan
Elliott H Sherr

Funding

UCSF CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTEUL1RR024131 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$111.2M
CTSA: K12 COMPONENTKL2RR024130 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$19.3M
Cortical spatiotemporal plasticity in humansR01DC004855 · NIDCD · UNIVERSITY OF UTAH · PI NAGARAJAN, SRIKANTAN S. · 2002 to 2011
$2.9M
Neural mechanisms of auditory feedback during speechR01DC006435 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI NAGARAJAN, SRIKANTAN S. · 2004 to 2008
$2.3M
Neuroimaging of Speech Motor ControlR01DC010145 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI HOUDE, JOHN FRANCIS · 2010 to 2014
$1.8M
Genetic Etiologies of Agenesis of the Corpus CallosumK02NS052192 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SHERR, ELLIOTT · 2005 to 2009
$773k
Magnetic Source Imaging and Sensory Behavioral Characterization in AutismK23MH083890 · NIMH · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MARCO, ELYSA JILL · 2008 to 2011
$695k
NCRR NIH HHS KL2 RR024130NCRR NIH HHS UL1 RR024131NIDCD NIH HHS DC006435NIDCD NIH HHS DC010145NIDCD NIH HHS R01 DC004855NIDCD NIH HHS R01 DC006435NIDCD NIH HHS R01 DC010145NIMH NIH HHS K23 MH083890NINDS NIH HHS K02 NS052192NINDS NIH HHS NS067962NINDS NIH HHS NS64060
6 · The paper itself

Abstract

The corpus callosum is hypothesized to play a fundamental role in integrating information and mediating complex behaviors. Here, we demonstrate that lack of normal callosal development can lead to deficits in functional connectivity that are related to impairments in specific cognitive domains. We examined resting-state functional connectivity in individuals with agenesis of the corpus callosum (AgCC) and matched controls using magnetoencephalographic imaging (MEG-I) of coherence in the alpha (8-12 Hz), beta (12-30 Hz) and gamma (30-55 Hz) bands. Global connectivity (GC) was defined as synchronization between a region and the rest of the brain. In AgCC individuals, alpha band GC was significantly reduced in the dorsolateral pre-frontal (DLPFC), posterior parietal (PPC) and parieto-occipital cortices (PO). No significant differences in GC were seen in either the beta or gamma bands. We also explored the hypothesis that, in AgCC, this regional reduction in functional connectivity is explained primarily by a specific reduction in interhemispheric connectivity. However, our data suggest that reduced connectivity in these regions is driven by faulty coupling in both inter- and intrahemispheric connectivity. We also assessed whether the degree of connectivity correlated with behavioral performance, focusing on cognitive measures known to be impaired in AgCC individuals. Neuropsychological measures of verbal processing speed were significantly correlated with resting-state functional connectivity of the left medial and superior temporal lobe in AgCC participants. Connectivity of DLPFC correlated strongly with performance on the Tower of London in the AgCC cohort. These findings indicate that the abnormal callosal development produces salient but selective (alpha band only) resting-state functional connectivity disruptions that correlate with cognitive impairment. Understanding the relationship between impoverished functional connectivity and cognition is a key step in identifying the neural mechanisms of language and executive dysfunction in common neurodevelopmental and psychiatric disorders where disruptions of callosal development are consistently identified.

Indexed as

AdolescentAdultAgenesis of Corpus CallosumAuditory PerceptionBeta RhythmCognitionCorpus CallosumFemaleHumansMagnetoencephalographyMaleMiddle AgedSpeech

Identifiers

PMID22870191
PMCPMC3411722

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.