Evidence map›Paper›PMID 33432756›Full record

ArticleWorld psychiatry : official journal of the World Psychiatric Association (WPA)2021

Psychological processes mediating the association between developmental trauma and specific psychotic symptoms in adults: a systematic review and meta-analysis.

Michael A P Bloomfield, Tinya Chang, Maximillian J Woodl, Laura M Lyons, Zhen Cheng, Clarissa Bauer-Staeb, Catherine Hobbs, Sophie Bracke, Helen Kennerley, Louise Isham and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in World psychiatry : official journal of the World Psychiatric Association (WPA), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 6 pooled it
15.9field-weighted citation impact, top 1% 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

66 citing papers in PubMed, 6 syntheses or guidelines pooled it, 141 citations in OpenAlex.

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  8. An etiological approach to psychosis: potential benefits for treatment, research and prevention.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
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6 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 at 8 institutions in 2 countries.

Michael A P BloomfieldTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Tinya ChangTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Maximillian J WoodlTraumatic Stress Clinic, St. Pancras Hospital, Camden and Islington NHS Foundation Trust, London, UK.
Laura M LyonsTraumatic Stress Clinic, St. Pancras Hospital, Camden and Islington NHS Foundation Trust, London, UK.
Zhen ChengTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Clarissa Bauer-StaebTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Catherine HobbsTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Sophie BrackeTranslational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of Psychiatry, University College London, London, UK.
Helen KennerleyUniversity of Oxford, Oxford, UK.
Louise IshamOxford Centre for Cognitive Therapy, Warneford Hospital, Oxford Health NHS Foundation Trust, Oxford, UK.
Chris BrewinResearch Department of Clinical, Health and Educational Psychology, University College London, London, UK.
Jo BillingsDivision of Psychiatry, University College London, London, UK.
Talya GreeneDivision of Psychiatry, University College London, London, UK.
Glyn LewisDivision of Psychiatry, University College London, London, UK.
University College London · GBCamden and Islington NHS Foundation Trust · GBMental Health Research UK · GBOxford Health NHS Foundation Trust · GBSt Pancras Hospital · GBUniversity College London Hospitals NHS Foundation Trust · GBUniversity of Bath · GBUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Experiencing psychological trauma during childhood and/or adolescence is associated with an increased risk of psychosis in adulthood. However, we lack a clear knowledge of how developmental trauma induces vulnerability to psychotic symptoms. Understanding the psychological processes involved in this association is crucial to the development of preventive interventions and improved treatments. We sought to systematically review the literature and combine findings using meta-analytic techniques to establish the potential roles of psychological processes in the associations between developmental trauma and specific psychotic experiences (i.e., hallucinations, delusions and paranoia). Twenty-two studies met our inclusion criteria. We found mediating roles of dissociation, emotional dysregulation and post-traumatic stress disorder (PTSD) symptoms (avoidance, numbing and hyperarousal) between developmental trauma and hallucinations. There was also evidence of a mediating role of negative schemata, i.e. mental constructs of meanings, between developmental trauma and delusions as well as paranoia. Many studies to date have been of poor quality, and the field is limited by mostly cross-sectional research. Our findings suggest that there may be distinct psy-chological pathways from developmental trauma to psychotic phenomena in adulthood. Clinicians should carefully ask people with psychosis about their history of developmental trauma, and screen patients with such a history for dissociation, emotional dysregulation and PTSD symptoms. Well conducted research with prospective designs, including neurocognitive assessment, is required in order to fully understand the biopsychosocial mechanisms underlying the association between developmental trauma and psychosis.

Indexed as

adolescencechildhooddelusionsDevelopmental traumadissociationhallucinationsparanoiapost-traumatic stress disorderpsychological processespsychotic symptoms

Identifiers

PMID33432756
PMCPMC7801841
OpenAlexW3120875310

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.