Evidence map›Paper›PMID 31545990›Full record

SynthesisNeuroscience and biobehavioral reviews2019

Impaired hippocampus-dependent associative learning as a mechanism underlying PTSD: A meta-analysis.

Hilary K Lambert, Katie A McLaughlin

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Neuroscience and biobehavioral reviews, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 58 citations in OpenAlex.

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  6. Fear of Predators Suppresses Neurogenesis in the Brains of Wild Songbirds.Integrative organismal biology (Oxford, England) · 2025
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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

2 authors at 2 institutions in 1 country.

Hilary K LambertDepartment of Psychology, University of Washington, 119A Guthrie Hall, Box 351525, Seattle, WA, 98195-1525, USA. Electronic address: hklamb@uw.edu.
Katie A McLaughlinDepartment of Psychology, Harvard University, William James Hall, 33 Kirkland Street, Cambridge, MA 02138, USA. Electronic address: kmclaughlin@fas.harvard.edu.
University of Washington · USWilliam James College · US

Funding

Child Trauma and the Development of Neural Systems Underlying Emotion RegulationR01MH103291 · NIMH · UNIVERSITY OF WASHINGTON · PI MCLAUGHLIN, KATIE · 2014 to 2018
$3.8M
Deprivation and Threat: Dimensions of Early Experience and Neural DevelopmentR01MH106482 · NIMH · UNIVERSITY OF WASHINGTON · PI MCLAUGHLIN, KATIE · 2016 to 2020
$3.1M
Impaired Hippocampus-Dependent Associative Learning as A Novel Mechanism Underlying PTSDF31MH116559 · NIMH · UNIVERSITY OF WASHINGTON · PI LAMBERT, HILARY KAYDEN · 2018 to 2019
$83k
NIMH NIH HHS F31 MH116559NIMH NIH HHS R01 MH103291NIMH NIH HHS R01 MH106482
6 · The paper itself

Abstract

Smaller hippocampal volume is associated with increased risk for PTSD following trauma, but the hippocampal functions involved remain unknown. We propose a conceptual model that identifies broad impairment in hippocampus-dependent associative learning as a vulnerability factor for PTSD. Associative learning of foreground cues and background context is required to form an integrated representation of an event. People with poor associative learning may have difficulty remembering who or what was present during a trauma, where the trauma occurred, or the sequence of events, which may contribute to PTSD symptoms. We argue that associative learning difficulties in PTSD exist for cues and context, regardless of the emotional nature of the information. This contrasts with PTSD models that focus exclusively on threat-processing or contextual-processing. In a meta-analysis, people with PTSD exhibited poor associative learning of multiple information types compared to those without PTSD. Differences were of medium effect size and similar magnitude for neutral and negative/trauma-related stimuli. We provide evidence for associative learning difficulties as a neurocognitive pathway that may contribute to PTSD.

Indexed as

Association LearningHippocampusHumansModels, NeurologicalStress Disorders, Post-TraumaticAssociative learningHippocampusPTSDTrauma

Identifiers

PMID31545990
PMCPMC6875601
OpenAlexW2974136899

What OpenQuestion holds

Textmetadata
LicenceTDM
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.