Evidence map›Paper›PMID 32406714›Full record

ArticlePsychological trauma : theory, research, practice and policy2020

Impulsivity as a mediating factor in the association between posttraumatic stress disorder symptoms and substance use.

Vanessa L Morris, Landry Goodgame Huffman, Katherine R Naish, Katherine Holshausen, Assaf Oshri, Margaret McKinnon, Michael Amlung

Open access · hybridAbstract read
In one paragraph

Article in Psychological trauma : theory, research, practice and policy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

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  7. Using Ecological Momentary Assessment to Measure Impulsivity among Trauma-Exposed Adults.Journal of psychopathology and behavioral assessment · 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

7 authors at 2 institutions in 2 countries.

Vanessa L MorrisPeter Boris Centre for Addictions Research.ORCID 0000-0002-0077-428X
Landry Goodgame HuffmanYouth Development Institute.ORCID 0000-0001-5328-6485
Katherine R NaishPeter Boris Centre for Addictions Research.
Katherine HolshausenPeter Boris Centre for Addictions Research.ORCID 0000-0002-4219-5825
Assaf OshriYouth Development Institute.
Margaret McKinnonMood Disorders Program.
Michael AmlungPeter Boris Centre for Addictions Research.
Youth Development · USCentre for Movement Disorders · CA

Funding

The influence of community and family protective processes on neurocognitive systems associated with early-onset drug use: An investigation of rural southern youthK01DA045219 · NIDA · UNIVERSITY OF GEORGIA · PI OSHRI, ASSAF · 2018 to 2022
$889k
Homewood Chair in Mental Health and TraumaMcMaster University; Michael G. DeGroote Centre for Medicinal Cannabis ResearchNIDA NIH HHS K01 DA045219St. Joseph's Healthcare Hamilton; Peter Boris Centre for Addictions Research
6 · The paper itself

Abstract

objectivePosttraumatic stress disorder (PTSD) has been associated with heightened impulsivity and risk-taking behaviors, including higher rates of substance use than individuals without PTSD. Although a number of studies suggest that impulsivity is associated with substance use in PTSD, the specific role of impulsivity in this common pattern of comorbidity remains unclear. The current study investigated associations between PTSD symptoms, substance use patterns, and impulsivity in a sample of adults.

methodA total of 2,967 participants were recruited online through Amazon's Mechanical Turk. Participants who did not report at least one Criterion A traumatic event on the Brief Trauma Questionnaire were excluded. The remaining 1,609 trauma-exposed individuals were placed into either the probable PTSD group (n = 406) or the trauma-exposed non-PTSD group (n = 1,203) based on their PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders, fifth edition (PCL-5) score. Impulsivity was assessed via a delay discounting measure and the brief UPPS-P (urgency, premeditation, perseverance, sensation seeking, and positive urgency) Impulsive Behavior Scale. Alcohol and cannabis were assessed using the Alcohol Use Disorders Identification Test (AUDIT) and Cannabis Use Disorders Identification Test (CUDIT-R) scales, respectively.

resultsProbable PTSD participants exhibited steeper (more impulsive) delay discounting and endorsed more impulsive traits than participants in the trauma-exposed non-PTSD group. Moreover, the PTSD group reported significantly higher scores on both the AUDIT and CUDIT-R. Lastly, impulsive personality traits on the UPPS-P partially mediated the association between PTSD and both cannabis and alcohol use.

conclusionsThese findings suggest that trauma-exposed individuals who exhibit elevated PTSD symptoms show heightened impulsivity. It also appears that lower levels of impulsivity may serve as a protective factor among trauma-exposed individuals resilient to the development of PTSD. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Indexed as

AdolescentAdultAgedAged, 80 and overAlcoholismDelay DiscountingFemaleHumansImpulsive BehaviorMaleMarijuana AbuseMediation AnalysisMiddle AgedPersonalityPsychological TraumaResilience, Psychological

Identifiers

PMID32406714
PMCPMC9068278
OpenAlexW3025404522

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.