Evidence map›Paper›PMID 23659473›Full record

ArticlePsychological medicine2014

Reduced parahippocampal cortical thickness in subjects at ultra-high risk for psychosis.

S Tognin, A Riecher-Rössler, E M Meisenzahl, S J Wood, C Hutton, S J Borgwardt, N Koutsouleris, A R Yung, P Allen, L J Phillips and 8 more

Abstract readMulticenter Study
In one paragraph

Article in Psychological medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

18 authors.

S TogninDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
A Riecher-RösslerCenter for Gender Research and Early Detection, University of Basel Psychiatric Clinics, c/o University Hospital Basel, Petersgraben, Basel, Switzerland.
E M MeisenzahlDepartments of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany.
S J WoodMelbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne and Melbourne Health, Victoria, Australia.
C HuttonWellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, University College London, London, UK.
S J BorgwardtCenter for Gender Research and Early Detection, University of Basel Psychiatric Clinics, c/o University Hospital Basel, Petersgraben, Basel, Switzerland.
N KoutsoulerisDepartments of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany.
A R YungOrygen Research Centre, University of Melbourne, Victoria, Australia.
P AllenDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
L J PhillipsPsychological Sciences, University of Melbourne, Victoria, Australia.
P D McGorryOrygen Research Centre, University of Melbourne, Victoria, Australia.
I ValliDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
D VelakoulisMelbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne and Melbourne Health, Victoria, Australia.
B NelsonOrygen Research Centre, University of Melbourne, Victoria, Australia.
J WoolleyDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
C PantelisMelbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne and Melbourne Health, Victoria, Australia.
P McGuireDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
A MechelliDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.

Funding

Medical Research Council G0601437Wellcome TrustWellcome Trust 091593/Z/10/Z
6 · The paper itself

Abstract

backgroundGrey matter volume and cortical thickness represent two complementary aspects of brain structure. Several studies have described reductions in grey matter volume in people at ultra-high risk (UHR) of psychosis; however, little is known about cortical thickness in this group. The aim of the present study was to investigate cortical thickness alterations in UHR subjects and compare individuals who subsequently did and did not develop psychosis.

methodWe examined magnetic resonance imaging data collected at four different scanning sites. The UHR subjects were followed up for at least 2 years. Subsequent to scanning, 50 UHR subjects developed psychosis and 117 did not. Cortical thickness was examined in regions previously identified as sites of neuroanatomical alterations in UHR subjects, using voxel-based cortical thickness.

resultsAt baseline UHR subjects, compared with controls, showed reduced cortical thickness in the right parahippocampal gyrus (p < 0.05, familywise error corrected). There were no significant differences in cortical thickness between the UHR subjects who later developed psychosis and those who did not.

conclusionsThese data suggest that UHR symptomatology is characterized by alterations in the thickness of the medial temporal cortex. We did not find evidence that the later progression to psychosis was linked to additional alterations in cortical thickness, although we cannot exclude the possibility that the study lacked sufficient power to detect such differences.

Indexed as

AdolescentAdultCase-Control StudiesData Interpretation, StatisticalDisease ProgressionDisease SusceptibilityFemaleFollow-Up StudiesHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleOrgan SizeParahippocampal GyrusProdromal SymptomsPsychotic Disorders

Identifiers

PMID23659473
PMCPMC3880065

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.