Digital Commons Network^™

The Role Of Childhood Trauma History In Relation To Decent Work, Matthew Reiland

Theses and Dissertations

This study used structural equation modeling to examine the impact of childhood trauma on decent work. Childhood trauma was added as an exogenous variable in the Psychology of Working Theory (PWT) model and hypothesized to have direct and indirect effects on decent work. An online sample of 643 working adults completed PWT measures and a measure on childhood trauma. Additionally, participants completed a single Likert-type item measure assessing negative impact of COVID-19 on work so that model invariance could examined among two high and low impact groups. Group invariance was satisfied at the configural, metric, and scalar levels, and the …

Gender And Ptsd: An Examination Of Socialized Masculinity As Moderator Of Ptsd Symptom Development, Kirsten Schmidt

Theses and Dissertations

This study seeks to explain observed gender differences in PTSD risk and protective factors and subsequent PTSD symptoms by use of a Masculine Heuristic moderator variable. Drawing from heuristic and gender role theories, this study utilizes a sample of male and female trauma survivors to examine the interaction between a Masculine Heuristic style and trauma exposure in the development of PTSD symptoms. Structural Equation Modeling and moderation analysis were used to explore these constructs. Results are discussed and incorporated into current literature, while limitations of the current study and suggestions for future research are explored.

Effect Of Neighborhood Socioeconomic Disadvantage On Brain Functional Connectivity And Structural Properties In Trauma-Exposed Adults, Elisabeth Kathleen Webb

Theses and Dissertations

Though there has been substantial progress towards understanding brain-behavior relationships and characterizing the neurobiology of psychiatric disorders, research has not translated as expected into novel prevention and treatment of mental health conditions. One limitation may be the emphasis on individual-level variables (e.g., income) and omission of relevant area-level factors (e.g., neighborhood socioeconomic disadvantage). Recently, attention has been directed towards identifying the biological mechanisms by which neighborhoods impact mental health. The chronic stress associated with living in a disadvantaged neighborhood promotes a cascade of maladaptive events, which in turn impact brain structure and functioning. The processes affected by chronic neighborhood stressors …

Neural Correlates Underlying The Interactions Between Anxiety And Cannabis Use In Predicting Motor Response Inhibition, Richard Ward

Theses and Dissertations

The ability to effectively withhold an inappropriate response is a critical feature of cognitive control. Prior research indicates alterations in neural processes required for motor response inhibition in anxious individuals, including those with posttraumatic stress disorder (PTSD), and those who engage in regular cannabis use. However, thus far most research has examined how anxiety-related symptoms and cannabis use influence response inhibition in isolation of one another. The current study examined the interactions between anxious symptomology and recent cannabis use in a sample that recently experienced a traumatic event using functional magnetic resonance imaging (fMRI) during the completion of a Stop-Signal …

Data-Driven Approach To Dynamic Resting State Functional Connectivity In Post-Traumatic Stress Disorder, Carissa Weis

Theses and Dissertations

Posttraumatic stress disorder (PTSD) is a heterogenous psychological disorder that may result from exposure to a traumatic event. Using functional magnetic resonance imaging (fMRI), symptoms of PTSD have been associated with aberrations in brain networks that emerge in the absence of a given cognitive demand or task, called resting state networks. Most previous research in resting state networks and PTSD has focused on aberrations in the static functional connectivity among specific regions of interest (ROI) in the brain and within canonical networks constrained by a priori hypotheses. However, dynamic fMRI, an approach that examines changes in brain network characteristics over …

Exploring The Effect Of Service Dogs On Ptsd Symptoms In Veterans, Lauren Floore-Guetschow

Theses and Dissertations

Utilizing psychiatric service dogs for PTSD is a relatively new area of research and treatment option for veterans. This qualitative research study aims to look at the effects of the use of psychiatric service dogs on veterans with PTSD for veterans who have or were previously receiving traditional mental health treatment. The researcher was looking to see: how does day-to-day life look for these veterans, have they noticed a change in PTSD symptoms, what are their views on mental health treatment, and how do they view being in public? 7 veterans, from a variety of conflicts and branches were interviewed …

Response To Uncertain Threat In Acute Trauma Survivors, Kenneth Bennett

Theses and Dissertations

Uncertainty is often associated with subjective distress and a potentiated anxiety response. The heightened response to uncertainty may be a central mechanism via which anxiety-, trauma-, and stressor-related disorders are developed and maintained. The current study compared the neural response to predictable and unpredictable threat in acute trauma survivors to clarify the role of the response to uncertain threat in fear circuitry and further inform the nature of the development of PTSD in the context of uncertain threat. The novel study showed that anticipating unpredictable (primarily negative images) relative to predictable images increased activation in a frontoparietal network and was …

Gender Role Conflict, Emotion Regulation, And Ptsd Symptom Severity In Acutely Injured Trauma Survivors, Katelyn Elaine Heyrman

Theses and Dissertations

Within the acutely injured population, men are at an increased risk for trauma exposure and hospitalization. Previous literature has suggested that emotional dysregulation and masculine gender roles are associated with psychological distress and maintenance of PTSD symptoms. Despite these findings, researchers have focused their attention on masculine gender roles within the Veteran and college populations. The current study aimed to assess the Gender Role Conflict within the acutely injured population and determine if emotion regulation strategy moderated the relationship between masculine gender roles and PTSD symptom severity. Participants consisted of 90 traumatically injured, cisgender males (Mage= 44.88 years; 60% White) …

White Matter Integrity In Individuals At-Risk For Ptsd Development: A Longitudinal Investigation, Carissa Weis

Theses and Dissertations

Trauma exposure is prevalent and while most are resilient, some go on to develop post-traumatic stress disorder (PTSD)—an anxiety-related disorder that results from traumatic experience. The brain changes that result from traumatic experience and PTSD are not well understood. Further, little is known about what distinguishes those who are resilient after trauma from those at risk for developing PTSD. Previous work indicates white matter integrity may be a useful biomarker in predicting PTSD and researchers have found changes in the integrity of three white matter tracts—the cingulum bundle, corpus callosum (CC), and uncinate fasciculus (UF)—in the aftermath of trauma. However, …

White Matter Integrity In Individuals At-Risk For Ptsd Development: A Longitudinal Investigation, Carissa Weis

Theses and Dissertations

Trauma exposure is prevalent and while most are resilient, some go on to develop post-traumatic stress disorder (PTSD)—an anxiety-related disorder that results from traumatic experience. The brain changes that result from traumatic experience and PTSD are not well understood. Further, little is known about what distinguishes those who are resilient after trauma from those at risk for developing PTSD. Previous work indicates white matter integrity may be a useful biomarker in predicting PTSD and researchers have found changes in the integrity of three white matter tracts—the cingulum bundle, corpus callosum (CC), and uncinate fasciculus (UF)—in the aftermath of trauma. However, …

Cultural Correlates Of Ptsd In Latinos Residing In The U.S., Gabriela A. Nagy

Theses and Dissertations

The present study examined the associations between cultural variables (i.e., acculturative stress, discrimination, social support, migration planning, and reasons for migrating) and exposure to trauma and PTSD in a sample of Latinos (N=2,554) residing in the United States, who participated in the National Latino and Asian America Study (NLAAS). Results showed that there were significant positive associations between trauma exposure and migrating because of political reasons, migrating in search of medical attention, migrating due to

marital or family problems, and forced migration, suggesting they may be risk factors for being exposed to trauma. There was a negative association between trauma …

Predicting Postraumatic Stress Disorder In Single-Incident Trauma Survivors With An Acute Injury, Joshua C. Hunt

Theses and Dissertations

The objective of this study was to create a brief and easily administered screen that can be used by hospital staff to identify those at risk for the later development of PTSD. Utilizing previous research examining pretrauma, peritrauma, and posttrauma risk factors for the development of PTSD among single-incident trauma survivors with an acute injury, an item pool was created and reviewed by experts in the field. This item pool along with a previously created screen were given to patients admitted to two level 1 trauma centers in the U.S. A follow-up was conducted at one month in which participants …