• Home
  • J Don Richardson
J Don Richardson

J Don Richardson
St. Joseph Operational Stress Injury Clinic – London -Western University · Department of Psychiatry- Schulich School of Medicine and Dentistry

MD, FRCPC

About

104
Publications
14,305
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,426
Citations
Introduction
Dr. Richardson is a psychiatrist, Professor, Department of Psychiatry-Western, Medical Director of St. Joseph’s Operational Stress Injury (OSI) Clinic in London and the Scientific Director of the MacDonald Franklin OSI research Centre at the Parkwood Institute. For more than 25 years he has been a clinician researcher and educator focusing on military and veteran health. Dr. Richardson has more than 50 published articles and book chapters on military and veteran health.
Additional affiliations
July 2018 - present
MacDonald/Franklin Operational Stress Injury Research Centre
Position
  • Managing Director
September 2014 - September 2016
National Defence
Position
  • Senior Researcher
September 2011 - February 2021
McMaster University
Position
  • Professor (Assistant)
Education
July 1992 - July 2021
University of Ottawa
Field of study
  • Psychiatry

Publications

Publications (104)
Article
Full-text available
Potentially morally injurious events (PMIEs) entail acts of commission (e.g., cruelty, proscribed or prescribed violence) or omission (e.g., high stakes failure to protect others) and bearing witness (e.g., to grave inhumanity, to the gruesome aftermath of violence), or being the victim of others' acts of commission (e.g., high stakes trust violati...
Article
Full-text available
Objectives The traumatic nature of high-risk military deployment events, such as combat, is well-recognized. However, whether other service-related events and demographic factors increase the risk of moral injury (MI), which is defined by consequences of highly stressful and morally-laden experiences, is poorly understood. Therefore, the objective...
Preprint
Background Military and veteran populations are unique in their trauma exposures, rates of mental illness and comorbidities, and response to treatments. While reviews have suggested that internet-based Cognitive Behavioral Therapy (iCBT) can be useful for treating mental health conditions, the extent to which they may be appropriate for military an...
Preprint
BACKGROUND Physicians experience higher rates of burnout relative to the general population. Concerns of confidentiality, stigma, and professional identifies as healthcare providers act as barriers to seeking and receiving appropriate support. In the context of the COVID-19 pandemic, factors that contribute to burnout and barriers to seeking suppor...
Article
Full-text available
Background Depression comorbid with posttraumatic stress disorder (PTSD) can be disabling and treatment resistant. Preliminary evidence suggests that repetitive transcranial magnetic stimulation (rTMS), may have a role in helping these patients. There are only few published studies using different rTMS paradigms including bilateral intermittent the...
Article
Full-text available
Background Military-related posttraumatic stress disorder (PTSD) is a complex diagnosis with non-linear trajectories of coping and recovery. Current approaches to the evaluation of PTSD and treatment discontinuation often rely on biomedical models that dichotomize recovery based on symptom thresholds. This approach may not sufficiently capture the...
Article
Full-text available
Posttraumatic stress disorder (PTSD) is a debilitating mental health condition that results from exposure to traumatic event(s). Decreased astrocyte-related proteins (e.g., glial fibrillary acidic protein, GFAP) and atrophic astrocytes in corticolimbic brain areas implicated in PTSD have been reported in experimental models suggesting that astrocyt...
Article
Introduction Chronic pain (CP) commonly presents alongside psychiatric conditions such as depression, PTSD, and generalized anxiety. The current study sought to better understand this complex relationship by determining whether anxiety and depression symptom severity mediated the relationship between DSM-5 PTSD symptom clusters and pain symptoms in...
Article
Full-text available
Background: The impacts of the COVID-19 pandemic have disproportionally affected different population groups. Veterans are more likely to have pre-existing mental health conditions compared to the general Canadian population, experience compounded stressors resulting from disruptions to familial, social, and occupational domains, and were faced wi...
Preprint
BACKGROUND The COVID-19 pandemic has resulted in significant changes to everyday life, including social distancing mandates, changes to health care, and a heightened risk of infection. Previous research has shown that Canadian Armed Forces (CAF) Veterans are at higher risk of developing mental and physical health conditions. Veterans and their fami...
Article
Background: The COVID-19 pandemic has resulted in significant changes to everyday life, including social distancing mandates, changes to health care, and a heightened risk of infection. Previous research has shown that Canadian Armed Forces (CAF) Veterans are at higher risk of developing mental and physical health conditions. Veterans and their fa...
Article
Full-text available
Background: Research is urgently needed to understand health care workers' (HCWs') experiences of moral-ethical dilemmas encountered throughout the COVID-19 pandemic, and their associations with organizational perceptions and personal well-being. This research is important to prevent long-term moral and psychological distress and to ensure that wo...
Article
Military service is associated with increased risk of mental health problems. Previous reviews have pointed to under-utilization of mental health services in military populations. Building on the most recent systematic review, our narrative, critical review takes a complementary approach and considers research across the Five-Eyes nations from the...
Article
Full-text available
LAY SUMMARY Combat Veterans are vulnerable to suicidal thoughts and behaviour. Many who die by suicide deny having suicidal ideation (SI). Typically, researchers try to find variables indicating the presence of SI using traditional statistical approaches. These approaches do not possess the capacity to detect highly complex multivariable interactio...
Article
Full-text available
Background: Compared to the general Canadian population, military members exhibit higher prevalence of depressive disorders, anxiety disorders, and posttraumatic stress disorder. However, there is a paucity of research investigating the extent to which military members experience positive mental health. Validation of positive mental health measures...
Preprint
BACKGROUND Over 85% of active members of the Canadian Armed Forces (CAF) have been exposed to potentially traumatic events linked to the development of posttraumatic stress disorder (PTSD). At the time of transition to civilian life, as high as one in eight Veterans has a diagnosis of PTSD. Given high rates of PTSD in military and Veteran populatio...
Article
Background: Over 85% of active members of the Canadian Armed Forces have been exposed to potentially traumatic events linked to the development of posttraumatic stress disorder (PTSD). At the time of transition to civilian life, as high as 1 in 8 veterans may be diagnosed with PTSD. Given the high prevalence of PTSD in military and veteran populat...
Article
Moral injury (MI) is defined as the profound psychological distress experienced in response to perpetrating, failing to prevent, or witnessing acts that transgress personal moral standards or values. Given the elevated risk of adverse mental health outcomes in response to exposure to morally injurious experiences in military members, it is critical...
Article
Background: Healthcare workers (HCWs) have experienced several stressors associated with the COVID-19 pandemic. Structural stressors, including extended work hours, re-deployment, and changes in organizational mandates often intersect with interpersonal and personal stressors, such as caring for those with COVID-19 infections, worrying about infec...
Preprint
BACKGROUND Health care workers (HCWs) have experienced several stressors associated with the COVID-19 pandemic. Structural stressors, including extended work hours, redeployment, and changes in organizational mandates, often intersect with interpersonal and personal stressors, such as caring for those with COVID-19 infections; worrying about infect...
Article
Full-text available
Post-traumatic stress disorder (PTSD) and mild traumatic brain injury (mTBI) are highly prevalent and closely related disorders. Affected individuals often exhibit substantially overlapping symptomatology – a major challenge for differential diagnosis in both military and civilian contexts. According to our symptom assessment, the PTSD group exhibi...
Preprint
Full-text available
Background The impacts of the COVID-19 pandemic have disproportionally affected different population groups. Veterans are more likely to have pre-existing mental health conditions compared to the general Canadian population, experience compounded stressors resulting from disruptions to familial, social, and occupational domains, and were faced with...
Preprint
Full-text available
Objective: Research is urgently needed to understand health care workers' (HCWs') experiences of moral-ethical dilemmas encountered throughout the COVID-19 pandemic, and their associations with organizational perceptions and personal well-being. The purpose of this research is to evaluate associations between workplace experiences during COVID-19,...
Article
Full-text available
Objective: The current study used the Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey (CAFVMHS) to (1) examine the incidence and prevalence of mental disorders and (2) estimate the comorbidity of mental disorders over the follow-up period. Method: The CAFVMHS (2018) is a longitudinal study with two time points of assess...
Article
Full-text available
Background Post-traumatic stress disorder (PTSD) is a debilitating mental health condition that develops in response to exposure to a traumatic event. The purpose of this study was to investigate white matter differences using diffusion tensor imaging (DTI) in trauma exposed military personnel with and without PTSD. Methods Data were acquired in c...
Article
Full-text available
Post-traumatic stress disorder (PTSD) is a prevalent psychiatric disorder, particularly among military personnel and veterans. Cortical gyrification, as a specific metric derived from structural MRI, is an index of the convoluted folding and patterning of the gyri and sulci, and is thought to facilitate the efficiency of local neuronal wiring. It h...
Article
Full-text available
Objectives The present report is the first study of Canadian military personnel to use longitudinal survey data to identify factors that determine major depressive episodes (MDEs) over a period of 16 years. Methods The study used data from the Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey (CAFVMHS) collected in 2018 ( n...
Article
Full-text available
Objective: Potentially morally injurious experiences (PMIE) (events that transgress an individual’s subjective moral standards) have been associated with psychologically distressing moral emotions such as shame and guilt. Military leaders and clinicians have feared that those with PMIEs may be less likely to seek help due to the withdrawing nature...
Article
Full-text available
Objective Posttraumatic stress disorder (PTSD) and depression substantially impair health-related quality of life (HRQOL) for many Canadian Armed Forces (CAF) veterans. Although PTSD and depression are highly comorbid, little is known about whether the disorders may interact in their association with HRQOL. We sought to investigate whether depressi...
Article
Objective The present study explores the effectiveness of incorporating temporal information in predicting Post-Traumatic Stress Disorder (PTSD) severity using magnetoencephalography (MEG) imaging data. The main objective was to assess the relationship between longitudinal MEG functional connectome data, measured across a variety of neural oscillat...
Article
Full-text available
Introduction: Limited research has investigated gender differences among treatment-seeking Veterans and serving military personnel, despite important implications for treatment provision. In order to better serve the needs of women with military service, the authors sought to address this gap by examining the clinical presentation of men and women...
Article
Full-text available
Given the subjective nature of conventional diagnostic methods for post-traumatic stress disorder (PTSD), an objectively measurable biomarker is highly desirable; especially to clinicians and researchers. Macroscopic neural circuits measured using magnetoencephalography (MeG) has previously been shown to be indicative of the PTSD phenotype and seve...
Article
Full-text available
Background: Sleep disturbances are a hallmark of posttraumatic stress disorder (PTSD), yet few studies have evaluated the role of dysregulated endogenous melatonin secretion in this condition. Methods: This study compared the sleep quality and nocturnal salivary melatonin profiles of Canadian Armed Forces (CAF) personnel diagnosed with PTSD, using...
Preprint
Full-text available
Given the subjective nature of conventional diagnostic methods for post-traumatic stress disorder (PTSD), an objectively measurable biomarker is highly desirable. Macroscopic neural circuits measured using magnetoencephalography (MEG) has previously been shown to be indicative of the PTSD phenotype and severity. In the present study, we employed a...
Article
Full-text available
Background: Most systematic reviews have explored the efficacy of treatments on symptoms associated with post-traumatic stress disorder (PTSD), which is a chronic and often disabling condition. Previous network meta-analysis (NMA) had limitations such as focusing on pharmacological or psychotherapies. Our review is aims to explore the relative eff...
Article
Objective: Among a sample of 341 treatment-seeking veterans and currently serving Canadian Forces members, our objectives were to identify factors of deployment experiences and determine whether they were related to the severity of posttraumatic stress disorder (PTSD) symptom clusters and depressive, anxiety, and alcohol use symptom severity. Met...
Article
Introduction There is mixed evidence regarding how posttraumatic stress disorder (PTSD) symptom clusters are associated with sexual dysfunction (SD), and most studies to date have failed to account for potentially confounding variables. Our study sought to explore the unique contribution of PTSD symptom clusters on (a) lack of sexual desire or plea...
Article
Objective: Posttraumatic stress disorder (PTSD) is often accompanied by other mental health conditions, including major depressive disorder (MDD), substance misuse disorders, and anxiety disorders. The objective of the current study is to delineate classes of comorbidity and investigate predictors of comorbidity classes amongst a sample of Canadian...
Article
Post-traumatic stress disorder (PTSD) is one of the common mental disorders in military and veteran populations. Considerable research and clinical opinion has been focused on understanding the relationship between PTSD and military service and the implications for prevention, treatment, and management. This paper examines factors associated with t...
Article
Full-text available
Background The field of psychiatry would benefit significantly from developing objective biomarkers that could facilitate the early identification of heterogeneous subtypes of illness. Critically, although machine learning pattern recognition methods have been applied recently to predict many psychiatric disorders, these techniques have not been ut...
Chapter
Posttraumatic stress disorder (PTSD) is a disorder characterized by specific symptoms which can develop after exposure to a potential traumatic event (PTE) or a number of traumatic events. PTEs in the general population may involve rape, motor vehicle accidents, assault, natural disasters, or terrorism. In the military, war zone or peacekeeping exp...
Article
Full-text available
Introduction: Using a treatment-seeking sample of military personnel and Veterans (n = 736), the objectives were to determine the prevalence of somatic symptoms in the sample and investigate whether the mean severity of somatic symptoms differed between common probable psychiatric conditions and comorbidity. Methods: The Patient Health Questionnair...
Article
Full-text available
Background: Research on the relationship between insomnia and nightmares, and suicidal ideation (SI) has produced variable findings, especially with regard to military samples. This study investigates whether depression mediated the relationship between: 1) sleep disturbances and SI, and 2) trauma-related nightmares and SI, in a sample of treatmen...
Article
Full-text available
Abstract Introduction: Despite limited research on the topic, it has been observed that military members face unique challenges with social support. Methods: The current study used data provided by treatment-seeking Veterans and Canadian Armed Forces (CAF) members (N=666) to: (1) determine whether symptomatology of post-traumatic stress disorder (P...
Article
Objective: To compare physical and mental health outcomes of Canadian military personnel with probable mild traumatic brain injury(mTBI) to outcomes of those without and to report implications for collaboration and treatment. Methods: One hundred forty-seven soldiers attending the Operational Stress Injury Clinic at Parkwood Hospital, London, On...
Article
Full-text available
Introduction: The present study examines the relationship between feeling responsible for the death of another and suicidal ideation (SI) while controlling for post-traumatic stress disorder (PTSD), major depressive disorder (MDD), and general adverse deployment experiences. Methods: Participants were current and former Canadian Armed Forces person...
Article
Full-text available
Background Past research on the association between insomnia and suicidal ideation (SI) has produced mixed findings. The current study explored the relationship between insomnia, SI, and past-year mental health status among a large Canadian Forces (CF) sample. Method Data was obtained from the 2013 Canadian Forces Mental Health Survey (CFMHS), and...
Technical Report
This report is the second of three analyzing the mental health findings from the 2013 Life After Service Studies (LASS) survey of Canadian Armed Forces members who were released from service in 1998-2012. This second report in the series describes the development and validation of a composite measure of mental health problems using findings from th...
Article
Full-text available
Introduction: DSM-5 diagnostic criteria revisions for post-traumatic stress disorder (PTSD) have raised concerns about PTSD prevalence – particularly the new requirement of one avoidance symptom. We examined the frequency of positive screening results for probable PTSD in treatment-seeking Canadian Armed Forces (CAF) personnel and Veterans when bot...
Article
Full-text available
Background Chronic post-traumatic stress disorder (PTSD) behavioural symptoms and medically unexplainable somatic symptoms are reported to occur following the stressful experience of military combatants in war zones. Aims To determine the contribution of disordered EEG sleep physiology in those military combatants who have unexplainable physical s...
Article
Full-text available
Dissociative experiences, involving altered states of consciousness, have long been understood as a consequence or response to traumatic experiences, where a reduced level of consciousness may aid in survival during and after a traumatic event. Indeed, the dissociative subtype of post-traumatic stress disorder (PTSD-DS) was added recently to the Di...
Article
Full-text available
Introduction. The mental health of Canadian Armed Forces (CAF) populations emerged as an important concern in the wake of difficult CAF deployments in the 1990s. This article is the first comprehensive summary of findings from subsequent surveys of mental health and well-being in CAF Veterans, undertaken to inform mental health service renewals by...
Article
Objective: Posttraumatic stress disorder (PTSD) is a significant psychiatric condition that may result from exposure to combat; it has been associated with severe psychosocial dysfunction. This study examined the predictors of long-term treatment outcomes in a group of veterans with military-related PTSD. Method: The study consisted of a retrospec...
Article
A dissociative-posttraumatic stress disorder (PTSD) subtype has been included in the DSM-5. However, it is not yet clear whether certain socio-demographic characteristics or psychological/clinical constructs such as comorbid psychopathology differentiate between severe PTSD and dissociative-PTSD. The current study investigated the existence of a di...