Evidence map›Paper›PMID 27230217›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2016

Longitudinal Evidence for Smaller Hippocampus Volume as a Vulnerability Factor for Perceived Stress.

Lenita Lindgren, Jan Bergdahl, Lars Nyberg

Abstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Exploring the role of apolipoprotein ε4 in progressive myoclonic epilepsy type 1.Epileptic disorders : international epilepsy journal with videotape · 2026
    Article
  6. Article
  7. The association between recent stressful life events and brain structure: a UK Biobank longitudinal MRI study.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Hippocampal Shape Maturation in Childhood and Adolescence.Cerebral cortex (New York, N.Y. : 1991) · 2019
    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

3 authors.

Lenita LindgrenFrom the Department of Nursing Department of Surgical and Perioperative Science Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.
Jan BergdahlDepartment of Psychology Department of Clinical Dentistry, Faculty of Health Sciences, UIT - The Arctic University of Norway, Tromsø, Norway.
Lars NybergDepartment of Integrative Medical Biology Department of Radiation Sciences and Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hippocampal volume has been found to be smaller in individuals with stress-related disorders, but it remains unclear whether smaller volume is a consequence of stress or rather a vulnerability factor. Here, we examined this issue by relating stress levels to hippocampal volumes in healthy participants examined every 5 years in a longitudinal population-based study. Based on scores of 25- to 60-year-old participants on the perceived stress questionnaire, we defined moderately to high (n = 35) and low (n = 76) stress groups. The groups were re-examined after 5 years (at the 6th study wave). Historical data on subjective stress were available up to 10 years prior to Wave 5. At the first MRI session, the moderately to high stress group had a significantly smaller hippocampal volume, as measured by FreeSurfer (version 5.3), compared with the low-stress group. At follow-up, group differences in stress levels and hippocampal volume remained unchanged. In retrospective analyses of subjective stress, the observed group difference in stress was found to be stable. The long-term stability of group differences in perceived stress and hippocampal volume suggests that a small hippocampal volume may be a vulnerability factor for stress-related disorders.

Indexed as

Analysis of VarianceDisease SusceptibilityFemaleFollow-Up StudiesHippocampusHumansImage Processing, Computer-AssistedLongitudinal StudiesMagnetic Resonance ImagingMaleMiddle AgedOrgan SizePerceptionRisk FactorsSelf ReportStress, Psychologicalhealthy individualshippocampal volumemagnetic resonance imagingstresssusceptibility

Identifiers

PMID27230217
PMCPMC4961026

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.