The direct and indirect impact of trauma types and cumulative stressors and traumas on executive functions

Tobacco use, trauma exposure and PTSD: a systematic review

Tobacco use remains one of the most significant preventable public health problems globally and is increasingly concentrated among vulnerable groups, including those with trauma exposure or diagnosed with PTSD. The goal of this systematic review was to update and extend previous reviews. Of the 7224 publications that met the initial criteria, 267 were included in the review. Summary topic areas include conceptual frameworks for the relation between trauma or PTSD and tobacco use; associations between trauma exposure or PTSD and tobacco use; number and type of trauma exposures and tobacco use; PTSD symptoms and tobacco use; Treatment-related studies; and the examination of causal relations. Evidence continues to indicate that individuals exposed to trauma or diagnosed with PTSD are more likely to use tobacco products, more nicotine dependent and less likely to abstain from tobacco even when provided evidence-based treatments than individuals without trauma. The most commonly cited causal association proposed was use of tobacco for self-regulation of negative affect associated with trauma. A small proportion of the studies addressed causality and mechanisms of action. Future work should incorporate methodological approaches and measures from which we can draw causal conclusions and mechanisms to support the development of viable therapeutic targets.

Gender differences in the associations of psychosocial trauma and acute medical stressors with immune system activation and dementia risk

Objective: The purpose of this article is to provide a narrative review synthesizing the literature on differences between women and men in relationships among certain stressors associated with immune system activation and their relationship to cognitive dysfunction and dementia. Method: We review the cycle of stress leading to neuroinflammation via cortisol and neurochemical alterations, cell-mediated immune system activation, and pro-inflammatory cytokines, and how this is implicated in the development of dementia. We follow this by discussing sex differences in stress physiology and immune function. We then review the work on early life adversity (ELA) and adverse childhood experiences (ACEs), post-traumatic stress disorder, acute medical stressors, and their associations with cognitive dysfunction and dementia. Throughout, we emphasize women's presentations and issues unique to women (e.g. trauma disorder prevalence). Conclusions: There is a need for more mechanistic and longitudinal studies that consider trauma accumulation, both physical and emotional, as well as a greater focus on traumas more likely to occur in women (e.g. sexual abuse), and their relationship to early cognitive decline and dementia.

The Insidious Influence of Stress: An Integrated Model of Stress, Executive Control, and Psychopathology

Although exposure to acute stress undoubtedly contributes to psychopathology, most individuals do not develop psychopathology following stress exposure. To explain this, biological, emotional, and cognitive responses to stress have been implicated, but individual differences in executive control (i.e., top-down control of cognition and behavior) measured in response to stress has only recently emerged as a potential factor contributing to psychopathology. In this review, we introduce a model-the integrated model of stress, executive control, and psychopathology-positing how the impairing effects of acute stress on executive control can contribute to psychopathology. We link to research on biological, emotional, and cognitive processes, all of which can be impacted by executive control, to propose a framework for how poorer executive control under conditions of acute stress can contribute to psychopathology. This integrated model is intended to further our understanding of who is more susceptible to the negative consequences of stress.

Effects of acceptance and commitment therapy on cognitive function: A systematic review

Cognitive function is essential for daily activities. Acceptance and commitment therapy (ACT) may improve cognitive function by enhancing psychological flexibility, but the underlying mechanism is unknown. This systematic review evaluated the effectiveness of ACT on cognitive function. Seven research databases (PubMed, ProQuest Dissertations and Theses, Web of Science, EBSCOhost, CNKI, Scopus, Wanfang) were searched to collect articles with trials published in English and Chinese. After applying inclusion and exclusion criteria, we identified 12 studies published between 1994 and 2022 that included a combined total of 904 participants. Among the included studies were within-group (N = 3) and randomized controlled trial (RCT, N = 9) study designs. Outcome measures included cognitive scales and behavioral measurements. Of the 12 articles, 10 studies showed improvements in certain domains of cognitive function due indirectly to ACT intervention. We found that the ability of ACT intervention to promote psychological flexibility is due to its transdiagnostic nature. Also, the effects of the ACT intervention were observed in multiple cognitive domains: attention, subjective cognitive function, executive function, and memory. In conclusion, cognitive trainers could consider practicing ACT as part of their strategy to enhance an individual's psychological flexibility and cognitive function.

Maladaptive cognitions and emotion regulation in posttraumatic stress disorder

PURPOSE

The present study investigated the interactions between emotion regulation strategies and cognitive distortions in posttraumatic stress disorder (PTSD). We also examined differences in emotion regulation and cognitive distortions across the trauma spectrum.

METHODS

The study was conducted in France between December 2019 and August 2020 and was approved by the university ethics committee. We recruited 180 participants aged over 18, with 3 groups of 60 each: (1) patients diagnosed with PTSD, (2) trauma-exposed without PTSD, (3) no history of trauma. Exclusion criteria were a history of neurological or mental disorders, psychoactive substance abuse, and a history of physical injury that could affect outcomes. All participants completed the Life Events Checklist‑5 (LEC-5), Post-traumatic Check List‑5 (PCL-5), Dissociative Experiences Scale (DES), Cognitive Emotion Regulation Questionnaire (CERQ), and Cognitive Distortions scale for Adults (EDC-A). Correlation analysis was performed to observe the relationship between PTSD severity and cognitive functioning. Correlations between cognitive distortions and maladaptive emotion regulation strategies were calculated for the PTSD group. A moderation analysis of the whole sample was conducted to examine the relationship between cognitive distortions, emotion regulation strategies, and PTSD.

RESULTS

Participants with PTSD scored significantly higher on the PCL‑5 and for dissociation than the other groups. PCL‑5 scores were positively correlated with maladaptive emotion regulation strategies and acceptance. They were also correlated with positive and negative dichotomous reasoning and negative minimization. Analysis of the PTSD group revealed correlations between maladaptive emotion regulation strategies and negative cognitive distortions. The moderation analysis revealed the cognitive distortions explaining the relationship between emotion regulation strategies and trauma exposure overall, and how they exacerbate emotional problems in PTSD.

CONCLUSION

The study provides indications for management of PTSD patients. Inclusion of an intermediate group of individuals exposed to trauma without PTSD revealed differences in the observed alterations. It would be interesting to extend the cross-sectional observation design to study traumatic events that may cause a specific type of disorder.

Developmental trauma: Conceptual framework, associated risks and comorbidities, and evaluation and treatment

Children exposed to adverse childhood experiences (ACEs) and pervasive interpersonal traumas may go on to develop PTSD and, in most cases, will further undergo a significant shift in their developmental trajectory. This paper examines contemporary research on Developmental Trauma (DT), which is inextricably linked to disruptions in social cognition, physiological and behavioral regulation, and parent-child attachments. Developmental trauma associated with early experiences of abuse or neglect leads to multi-faceted and longstanding consequences and underscores critical periods of development, complex stress-mediated adaptations, and multilevel, trans-theoretical influences in the diagnostic formulation and treatment of traumatized children, adolescents, and adults. Psychological and medical correlates of Developmental Trauma Disorder are considered, and directions for future research are discussed.

The effects of COVID-19 continuous traumatic stressors on mental health and cognitive functioning: A case example from Turkey

There is a need to accurately assess the specific impacts of the various traumatic stressors caused by COVID-19 on mental health. The goal was to evaluate the impact of different types of COVID-19 stressors (infection fears, lockdown, and economic stressors) on mental health and cognitive functioning. We used a sample of 262 Turkish adults. We administered an online questionnaire that included measures of COVID-19 traumatic stressors, PTSD, depression, anxiety, executive function deficits, and cumulative stressors and traumas (CST). The analyses included correlations, hierarchical regression, path analysis, and PROCESS mediation analysis. All COVID-19 traumatic stressors types and their cumulative load predicted PTSD, depression, anxiety, and executive function deficits after controlling for previous cumulative stressors and traumas and COVID-19 infection. COVID-19 lockdown’s stressors were the strongest predictors, compared to COVID-19 fears and economic stressors. Path analysis and PROCESS mediation results indicated that COVID-19 traumatic stressors had direct effects on working memory deficits, direct and indirect effects on PTSD, depression, and anxiety, and indirect effects on inhibition deficits. Anxiety, depression, and inhibition deficits mediated its indirect effects on PTSD. The results have conceptual and clinical implications. COVID-19 continuous posttraumatic stress syndrome that includes comorbid PTSD, depression, anxiety, and executive function deficits is different and does not fit within the current trauma frameworks. There is a need for a paradigm shift in current stress and trauma frameworks to account for the COVID-19 continuous global stressors and for clinical innovations in intervention to help its victims.