Do trauma cue exposure and/or PTSD symptom severity intensify selective approach bias toward cannabis cues in regular cannabis users with trauma histories?

Trauma cue-elicited activation of automatic cannabis-related cognitive biases are theorized to contribute to comorbid posttraumatic stress disorder and cannabis use disorder. This phenomenon can be studied experimentally by combining the trauma cue reactivity paradigm (CRP) with cannabis-related cognitive processing tasks. In this study, we used a computerized cannabis approach-avoidance task (AAT) to assess automatic cannabis (vs. neutral) approach bias following personalized trauma (vs. neutral) CRP exposure. We hypothesized that selective cannabis (vs. neutral) approach biases on the AAT would be larger among participants with higher PTSD symptom severity, particularly following trauma (vs. neutral) cue exposure. We used a within-subjects experimental design with a continuous between-subjects moderator (PTSD symptom severity). Participants were exposed to both a trauma and neutral CRP in random order, completing a cannabis AAT (cannabis vs. neutral stimuli) following each cue exposure. Current cannabis users with histories of psychological trauma (n = 50; 34% male; mean age = 37.8 years) described their most traumatic lifetime event, and a similarly-detailed neutral event, according to an established interview protocol that served as the CRP. As hypothesized, an AAT stimulus type x PTSD symptom severity interaction emerged (p = .042) with approach bias greater to cannabis than neutral stimuli for participants with higher (p = .006), but not lower (p = .36), PTSD symptom severity. Contrasting expectations, the stimulus type x PTSD symptoms effect was not intensified by trauma cue exposure (p = .19). Selective cannabis approach bias may be chronically activated in cannabis users with higher PTSD symptom severity and may serve as an automatic cognitive mechanism to help explain PTSD-CUD co-morbidity.

Potentially Psychologically Traumatic Event Exposure Histories of new Royal Canadian Mounted Police Cadets.

OBJECTIVE: Royal Canadian Mounted Police (RCMP) report extremely frequent and varied exposures to potentially psychologically traumatic events (PPTEs). While occupational exposures to PPTEs may be one explanation for the symptoms of mental disorders prevalent among serving RCMP, exposures occurring prior to service may also play a role. The objective of the current study was to provide estimates of lifetime PPTE exposures among RCMP cadets in training and assess for associations with mental disorders or sociodemographic variables. METHODS: RCMP cadets (n = 772; 72.0% male) beginning the Cadet Training Program (CTP) completed a survey assessing self-reported PPTE exposures as measured by the Life Events Checklist for the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition-Extended. Binomial tests were conducted to compare the current results to previously collected data from the general population, a diverse sample of public safety personnel (PSP) and serving RCMP. RESULTS: Cadets reported statistically significantly fewer PPTE exposures for all PPTE types than serving RCMP (all p's < 0.001) and PSP (all p's < 0.001) but more PPTE exposures for all PPTE types than the general population (all p's < 0.001). Cadets also endorsed fewer PPTE types (6.00 ± 4.47) than serving RCMP (11.64 ± 3.40; p < 0.001) and other PSP (11.08 ± 3.23) but more types than the general population (2.31 ± 2.33; p < 0.001). Participants who reported being exposed to any PPTE type reported the exposures occurred 1-5 times (29.1% of participants), 6-10 times (18.3%) or 10 + times (43.1%) before starting the CTP. Several PPTE types were associated with positive screens for one or more mental disorders. There were associations between PPTE types and increased odds of screening positive for post-traumatic stress disorder (PTSD), major depressive disorder (MDD), generalized anxiety disorder (GAD) and social anxiety disorder (SAD) (all p's < 0.05). Serious transport accident (11.1%), physical assault (9.5%) and sudden accidental death (8.4%) were the PPTEs most identified as the worst event, and all were associated with positive screens for one or more mental disorders. CONCLUSION: The current results provide the first information describing PPTE histories of cadets, evidencing exposure frequencies and types much higher than the general population. PPTE exposures may have contributed to the cadet's vocational choices. The current results support the growing evidence that PPTEs can be associated with diverse mental disorders; however, the results also suggest cadets may be uncommonly resilient, based on how few screened positive for mental disorders, despite reporting higher frequencies of PPTE exposures prior to CTP than the general population.

Exposures to Potentially Psychologically Traumatic Events Among Provincial Correctional Workers in Ontario, Canada.

We know little about potentially psychologically traumatic events (PPTE) exposures among provincial correctional workers in diverse occupational positions and even less regarding how exposure to events are associated with mental health disorders. We designed the current study to unpack and quantify estimates of the frequencies that correctional workers, across occupational roles, experience exposure to diverse incidents. We categorized 1,338 of our 1,487 participants into six occupational categories and our measures included established self-report items measuring PPTE exposure and mental disorder symptoms. Almost all correctional workers reported exposures to most PPTE types. Correctional workers collectively report exposures to physical assault (90.2%) and sudden violent death (81.8%), with many (3.1%-46%) reporting 11+ exposures (M = 10.01, SD = 4.29). We found significant differences in exposure patterns across correctional worker categories; specifically, we found a higher prevalence of exposure to toxic substances, physical assault, assault with a weapon, severe human suffering, sudden accidental or sudden violent death, among those working in institutional correctional services (e.g., governance, correctional officers). PPTE exposure and all assessed mental health disorder symptom profiles were closely related, as correctional workers report high exposure to PPTE. Population attributable fractions indicated that the burden of mental disorders among provincial correction workers might be reduced by between 38%-70% if PPTE exposures were eliminated from the population. We conclude with recommendations for mental health related policies, such as investing in peer and psychologically support, as well as interventions for exposure to PPTE and readiness to inform strategies for employee mental health and well-being.

Assessing the Efficacy of a Cultural and Artistic Intervention for Indigenous Women Who Have Experienced Intimate Partner Violence.

nato' we ho win is a trauma-and-violence-informed artistic and cultural intervention for Indigenous women who have experienced intimate partner violence. The results of this study provide evidence that engagement in nato' we ho win had a positive impact on participants' well-being. Participants completed self-report questionnaires at intake, post-intervention, and at one-year follow-up. Multilevel modeling analyses assessed for within-participant changes over time. There was a statistically significant increase in participants' self-reported sense of resilience (p < 0.001), personal agency, connectedness, and post-traumatic growth (ps < 0.05). There were statistically significant decreases in participants' self-reported anxiety and depression (ps < 0.01) from intake to one-year follow-up.

Suicidal Behaviors Among Nurses in Canada.

BACKGROUND: Nurses are regularly exposed to potentially psychologically traumatic events, experience high rates of burnout, and may be at an elevated risk of death by suicide. Few studies have assessed for suicidal behaviors among Canadian nurses, and factors that may increase risk for suicidal behaviors are unknown. PURPOSE: The current study was designed to assess past-year and lifetime suicidal behavior (i.e., ideation, plans, and attempts) using a large sample of Canadian nurses. METHOD: Participants (n = 3969; 94.3% women) completed an online survey including measures of suicidal behavior and symptoms of mental disorders. RESULTS: Considerable proportions of participants reported past-year and/or lifetime suicidal ideation (10.5%, 33.0%), plans (4.6%, 17.0%), and attempts (0.7%, 8.0%), considerably higher than general population estimates. Significant differences were identified across age groups, years of service, marital status, regional location, and nursing type (e.g., registered psychiatric nurses, licensed practical nurses, registered nurses). Participants who screened positive for almost all measured mental disorders had significantly higher rates of suicidal behavior. CONCLUSIONS: The results necessitate further research to evaluate risk factors contributing to suicidal behavior in Canadian nurses and methods to decrease the risk (e.g., developing effective monitoring and prevention measures).

Configural and scalar invariance of the center for epidemiologic studies depression scale in Egypt and Canada: Differential symptom emphasis across cultures and genders.

BACKGROUND: Depression is a significant contributor of global disease burden. Previous studies have revealed cross-cultural and gender differences in the presentation of depressive symptoms. Using the Center for Epidemiologic Studies-Depression Scale (CES-D), the present study examined differences in self-reported somatic, negative affective, and anhedonia symptoms of depression among Egyptian and Canadian university students. METHODS: A total of 338 university students completed study questionnaires from two major universities in Egypt (n=152) and Canada (n=186). Symptom domains were calculated based on the 14-item model of the CES-D. RESULTS: We found significant culture by gender interactions of total CES-D scores, wherein Egyptian females reported higher scores compared to their Canadian and Egyptian male counterparts. LIMITATIONS: Limitations include using analogue student samples and using only one self-report measure to examine different depressive symptom domains. CONCLUSIONS: Findings of this study provided support that males and females may differentially report depressive symptoms across cultures. Implications of these results are further discussed.

Fear of pain is elevated in adults with co-occurring trauma-related stress and social anxiety symptoms.

The aim of this study was to determine whether fear of pain and related fear constructs are elevated in people with co-occurring trauma-related stress and social anxiety symptoms relative to people with 1 or neither of these conditions. Eighty students were selected from a larger sample and divided into 4 equal groups comprising those with both high trauma-related stress and social anxiety symptom scores (TRS/SAS), only high trauma-related stress symptom scores (TRS), only high social anxiety symptom scores (SAS), or neither (N). Results indicated that the TRS/SAS group had significantly higher scores on all fear of pain measures, anxiety sensitivity, and illness/injury sensitivity than any other group, even when level of current pain was included as a covariate. These findings suggest that people with co-occurring trauma-related and social anxiety symptoms are most likely to be fearful of pain and to thereby be at increased risk of developing chronic and disabling pain. Implications for future research and treatment are discussed.