Michelle Lonergan

Michelle Lonergan
University of Ottawa · School of Psychology

PhD. Psychiatry

About

35
Publications
7,407
Reads
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315
Citations
Citations since 2016
27 Research Items
260 Citations
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201620172018201920202021202201020304050
201620172018201920202021202201020304050
Additional affiliations
February 2019 - present
University of Ottawa
Position
  • PostDoc Position
November 2009 - present
Douglas Mental Health University Institute
Position
  • Clinical Research Assistant
Education
May 2014 - January 2019
McGill University
Field of study
  • Psychiatry

Publications

Publications (35)
Article
Full-text available
According to a growing body of research, betrayal by a romantic partner is increasingly considered as a form of interpersonal trauma. Between 30% and 60% of betrayed individuals experience symptoms of posttraumatic stress disorder (PTSD), depression, and anxiety to clinically meaningful levels. From a clinical perspective, this constellation of sym...
Article
Full-text available
Background: Reconsolidation impairment using propranolol is a novel intervention for mental disorders with an emotional memory at their core. In this systematic review and meta-analysis, we examined the evidence for this intervention in healthy and clinical adult samples. Methods: We searched 8 databases for randomized, double-blind studies that...
Article
Full-text available
Background: Throughout the pandemic, the general population was encouraged to use media to be kept informed about sanitary measures while staying connected with others to obtain social support. However, due to mixed findings in the literature, it is not clear whether media use in such a context would be pathogenic or salutogenic. Objective: Therefo...
Article
Objectives In a sustained relationship, romantic betrayal is a catastrophic event that can precipitate an adjustment disorder (AD). Surprisingly, there exists no empirically validated treatment for AD, despite its high prevalence in clinical practice. Considering the promise of memory reactivation under propranolol (i.e., reconsolidation interferen...
Article
An attachment injury can occur when one partner violates the assumption that they will provide comfort and caring during a moment of increased need. For injured partners, unresolved attachment injuries can underlie an enduring stress reaction and lower relationship satisfaction. However, no research has examined the associations between the perceiv...
Article
The Peritraumatic Distress Inventory (PDI) is a well‐known self‐report questionnaire indexing the distress experienced during and shortly after a most stressful or traumatic event. Although sociodemographic factors contributing to peritraumatic distress have been previously investigated, no research has examined the nature and severity of peritraum...
Article
Full-text available
Background: Posttraumatic stress disorder (PTSD) has been hailed by some as the emblematic mental disorder of the COVID‐19 pandemic, assuming that PTSD’s life‐threat criterion was met de facto. More plausible outcomes like adjustment disorder (AD) have been overlooked. Methods: An online cross‐sectional survey was launched in the initial stage of t...
Preprint
BACKGROUND While exposure to COVID-related stressors, level of peritraumatic distress, and frequency of media use for seeking COVID-related information can increase the risk for trauma- and stressor-related (TSR) symptoms during the pandemic, frequency of social media use for support and connection may buffer these effects. OBJECTIVE We examined t...
Presentation
One of the ‘hot’ topics related to ongoing COVID-19 pandemic is the high prevalence of posttraumatic stress disorder (PTSD) resulting from the global crisis. However, to be diagnosed with PTSD, one must be exposed to an event involving life-threat, which does not necessarily capture the substantial variability in the types of stressors and subseque...
Article
Introduction The interpersonal context of an individual struggling with non-suicidal self-injury (NSSI) is of critical importance. Objective The purpose of the current study is to offer, through a dyadic perspective, a unique portrait of the relevant indicators of romantic relationship functioning (i.e., romantic attachment, dyadic trust, dyadic c...
Presentation
Background. The COVID-19 pandemic has devastating psychological consequences for many, which can include posttraumatic stress disorder (PTSD). Previous studies reported a high prevalence of PTSD due to the pandemic but failed to consider the life-threat criterion, which may have led to inaccurate prevalence estimates. This study addressed this gap...
Research
Goal: Our aim is to better understand symptoms of stress that may arise as a consequence of the COVID-19 crisis. We want to assess those symptoms globally as to see how it affects people in different countries. Such an investigation will allow us to better understand the nature of psychological distress following a pandemic and what intervention st...
Poster
Romantic betrayal may precipitate an adjustment disorder in some individuals, an event-related psychological disturbance that is characterized by anxiety, depression, and posttraumatic stress disorder-like symptoms of intrusions, avoidance, increased vigilance, and failure-to-adapt. Although prior qualitative work suggests that romantic partner bet...
Thesis
Although mounting evidence indicates that some individuals betrayed by a romantic partner may develop an adjustment disorder, a trauma-and stressor-related disorder characterized by intrusions, avoidance, and failure to adapt, there currently exists no systematic individualized treatment. Considering trauma-and stressor-related disorders as etiolog...
Poster
Abstract 1: Background: Research on traumatic stress has focused on individual risk factors, but contextual factors, including perceived neighborhood disorder (ND) and social cohesion (SC), may also account for variance in relation to posttraumatic stress disorder (PTSD). The current study examines associations between these contextual factors and...
Article
Trauma exposure is a precursor to a diagnosis of posttraumatic stress disorder (PTSD). A dearth of empirical evidence exists on the impact of different measurement practices on estimates of trauma exposure and PTSD within representative epidemiological samples. In the present study, we examined differences in reported trauma exposure and rates of P...
Article
Full-text available
Background: The reconsolidation blocker propranolol abolishes alcohol and drug-seeking behavior in rodents and attenuates conditioned emotional responses to drug-cues in humans in experimental settings. This suggests a role for its use in the treatment of substance dependence. In this translational pilot study, we explored the feasibility and effi...
Article
Posttraumatic stress disorder (PTSD) represents an often chronic and debilitating mental illness resulting from exposure to trauma. Although the most compelling evidence for the treatment of PTSD is cognitive behavioral therapy (CBT), many patients experience residual functional impairment, or relapse, suggesting that this approach does not work fo...
Article
Background: Considering the pivotal role of negative emotional experiences in the development and persistence of mental disorders, effectively interfering with the consolidation/reconsolidation of such experiences would open the door to a novel treatment approach in psychiatry.Objective: We assessed the current evidence regarding the capacity of th...
Article
Background: Considering the pivotal role of negative emotional experiences in the development and persistence of mental disorders, interfering with the consolidation/reconsolidation of such experiences would open the door to a novel treatment approach in psychiatry. We conducted a meta-analysis on the experimental evidence regarding the capacity o...

Network

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Projects

Project (1)
Project
Our aim is to better understand symptoms of stress that may arise as a consequence of the COVID-19 crisis. We want to assess those symptoms globally as to see how it affects people in different countries. Such an investigation will allow us to better understand the nature of psychological distress following a pandemic and what intervention strategies could be beneficial within a wide range of countries. We would really appreciate if your could complete the survey and post this on your social media page or circulate it at your work among your colleagues. Our survey is available in 6 languages so far at the following links: English https://www.surveymonkey.com/r/BYFWQWN French https://www.surveymonkey.com/r/BJQ2B6Y Italian https://www.surveymonkey.com/r/PRSWL2W Chinese https://www.surveymonkey.com/r/5N3X9MC Spanish https://es.surveymonkey.com/r/RWWTVM9 Nepali https://www.surveymonkey.com/r/8NJZK29