Evidence map›Paper›PMID 24695711›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2014

Aberrant functional connectivity in dissociable hippocampal networks is associated with deficits in memory.

Natalie L Voets, Giovanna Zamboni, Mark G Stokes, Katherine Carpenter, Richard Stacey, Jane E Adcock

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% of its field
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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Pooled it
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  3. Longitudinal hippocampal axis in large-scale cortical systems underlying development and episodic memory.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  17. Dynamical Mechanisms of Interictal Resting-State Functional Connectivity in Epilepsy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 3 countries.

Natalie L VoetsFMRIB Centre, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom, Oxford Epilepsy Research Group, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom, Oxford Centre for Human Brain Activity, University of Oxford, Warneford Hospital, Oxford OX3 7JX, United Kingdom, and Russell Cairns Unit and Departments of Neurosurgery and Neurology, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom.
Giovanna Zamboni
Mark G Stokes
Katherine Carpenter
Richard Stacey
Jane E Adcock
Wellcome Centre for Integrative Neuroimaging · GBCairns Hospital · AUUniversity of Oxford · GBWarneford Hospital · GB

Funding

Medical Research Council G0900806Medical Research Council MR/J009024/1
6 · The paper itself

Abstract

In the healthy human brain, evidence for dissociable memory networks along the anterior-posterior axis of the hippocampus suggests that this structure may not function as a unitary entity. Failure to consider these functional divisions may explain diverging results among studies of memory adaptation in disease. Using task-based and resting functional MRI, we show that chronic seizures disrupting the anterior medial temporal lobe (MTL) preserve anterior and posterior hippocampal-cortical dissociations, but alter signaling between these and other key brain regions. During performance of a memory encoding task, we found reduced neural activity in human patients with unilateral temporal lobe epilepsy relative to age-matched healthy controls, but no upregulation of fMRI signal in unaffected hippocampal subregions. Instead, patients showed aberrant resting fMRI connectivity within anterior and posterior hippocampal-cortical networks, which was associated with memory decline, distinguishing memory-intact from memory-impaired patients. Our results highlight a critical role for intact hippocampo-cortical functional communication in memory and provide evidence that chronic injury-induced functional reorganization in the diseased MTL is behavioral inefficient.

Indexed as

AdolescentAdultBrain MappingEpilepsy, Temporal LobeFemaleHippocampusHumansImage Processing, Computer-AssistedMaleMemory DisordersMiddle AgedNerve NetNeuropsychological TestsOxygenRestStatistics as TopicOxygenfMRImemoryplasticityreorganizationtemporal lobe epilepsy

Identifiers

PMID24695711
PMCPMC3972719
OpenAlexW2005016067

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.