Evidence map›Paper›PMID 26113620›Full record

ArticleSchizophrenia bulletin2016

Hippocampal Shape Abnormalities Predict Symptom Progression in Neuroleptic-Free Youth at Ultrahigh Risk for Psychosis.

Derek J Dean, Joseph M Orr, Jessica A Bernard, Tina Gupta, Andrea Pelletier-Baldelli, Emily E Carol, Vijay A Mittal

Abstract read
In one paragraph

Article in Schizophrenia bulletin, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
–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

35 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Motor precision deficits in clinical high risk for psychosis.European archives of psychiatry and clinical neuroscience · 2024
    Article
  7. Article
  8. Article
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  11. A Review of Potential Neuroimaging Biomarkers of Schizophrenia-Risk.Journal of psychiatry and brain science · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Neuroimaging Markers of Resiliency in Youth at Clinical High Risk for Psychosis: A Qualitative Review.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2021
    Review
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  18. Article
  19. Article
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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

7 authors.

Derek J DeanDepartment of Psychology and Neuroscience, Center for Neuroscience, and derek.dean@colorado.edu.
Joseph M OrrInstitute for Cognitive Science, University of Colorado Boulder, Boulder, CO;
Jessica A BernardDepartment of Psychology and Neuroscience.
Tina GuptaDepartment of Psychology and Neuroscience.
Andrea Pelletier-BaldelliDepartment of Psychology and Neuroscience, Center for Neuroscience, and.
Emily E CarolDepartment of Psychology and Neuroscience.
Vijay A MittalDepartment of Psychology, Northwestern University, Evanston, IL.

Funding

Frontal-Subcortical Development, Movement Abnormalities, and Risk for PsychosisR01MH094650 · NIMH · UNIVERSITY OF COLORADO · PI MITTAL, VIJAY A · 2011 to 2015
$2.3M
Exercise and markers of medial temporal health in youth at-risk for psychosisR33MH103231 · NIMH · NORTHWESTERN UNIVERSITY · PI BRYAN, ANGELA, MITTAL, VIJAY A · 2016 to 2018
$689k
Exercise and markers of medial temporal health in youth at-risk for psychosisR21MH103231 · NIMH · UNIVERSITY OF COLORADO · PI BRYAN, ANGELA, MITTAL, VIJAY A · 2014 to 2015
$489k
Organization and timecourse of the neural mechanisms for cognitive flexibilityF32DA034412 · NIDA · UNIVERSITY OF COLORADO · PI ORR, JOSEPH M. · 2013 to 2015
$122k
Social Processes in individuals at clinical high-risk for psychosisF31MH100821 · NIMH · UNIVERSITY OF COLORADO · PI BALDELLI, ANDREA PELLETIER · 2013 to 2016
$102k
NIDA NIH HHS F32 DA034412NIDA NIH HHS F32DA034412NIDA NIH HHS L30 DA038580NIMH NIH HHS F31MH100821NIMH NIH HHS F32MH102989NIMH NIH HHS R01 MH094650NIMH NIH HHS R01MH094650NIMH NIH HHS R21 MH103231NIMH NIH HHS R21/R33MH103231NIMH NIH HHS R33 MH103231
6 · The paper itself

Abstract

introductionHippocampal abnormalities have been widely studied in schizophrenia spectrum populations including those at ultrahigh risk (UHR) for psychosis. There have been inconsistent findings concerning hippocampal morphology prior to and during the transition to psychosis, and little is known about how specific subregions are related to the symptom progression.

methodsA total of 80 participants (38 UHR and 42 healthy controls) underwent a 3T MRI scan, as well as structured clinical interviews. Shape analysis of hippocampi was conducted with FSL/FIRST vertex analysis to yield a localized measure of shape differences between groups. A subgroup of the sample (24 UHR and 24 controls) also returned for a 12-month clinical follow-up assessment.

resultsThe UHR group exhibited smaller hippocampal volumes bilaterally, and shape analysis revealed significant inversion in the left ventral posterior hippocampus in the UHR group. Greater inversion in this subregion was related to elevated symptomatology at baseline and increased positive symptoms, negative symptoms, and impaired tolerance to normal stress 12 months later. These results did not hold when left hippocampal volume was used as a predictor instead. DISCUSSION: This represents the first study to use vertex analysis in a UHR sample and results suggest that abnormalities in hippocampal shape appear to reflect underlying pathogenic processes driving the progression of illness. These findings suggest that examining shape and volume may provide an important new perspective for our conception of brain alterations in the UHR period.

Indexed as

Prodromal SymptomsRiskAdolescentCase-Control StudiesDisease ProgressionFemaleHippocampusHumansMagnetic Resonance ImagingMaleOrgan SizePrognosisPsychotic DisordersSchizophreniaYoung AdultHippocampusMRIpsychosisshape analysisultra-high riskvertex analysis

Identifiers

PMID26113620
PMCPMC4681548

What OpenQuestion holds

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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.