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Posttraumatic Cognitions As A Pathway From Resilience To Sleep In First Responders, Emily Peterman Cabano

Clinical Psychology Dissertations

Abstract

First responders experience repeated trauma exposure within a unique environment that subjects them to multiple personal and professional stressors, discourages vulnerability, and disrupts sleep (Chamberlin & Green, 2010; Vargas de Barros et al., 2013). First responders have been shown to have higher rates of posttraumatic stress disorder, as well as more frequent negative effects of their symptoms including adverse effects on their personal and professional functioning (Cheng et al., 2018; Gayton & Lovell, 2012). While first responders face significant risks to their mental health in the line of duty, there is insufficient population-specific research focused on these unique risks, …

What Happens When Youth Talk About Their Problems? Co-Rumination As A Mechanism Of Stress Generation, Jaclyn T. Aldrich

Clinical Psychology Dissertations

During adolescence, rates of depression increase significantly, necessitating understanding of interpersonal and intrapersonal factors that contribute to the occurrence of depressive symptoms. Prominent theories of depression, such as stress generation theory, suggest that depressed individuals experience more interpersonal stress that is dependent on their own actions or behavior. The current study sought to examine the role of co-rumination in the generation of stress and development of depression over the course of a year. Participants were 150 adolescents (48.7% female, 77.5% Caucasian) ages 11 to 14 years old (M = 13.03, SD = 0.93). Three models assessed the directional relationship …

Rsa In Young Adults: Identifying Naturally-Occurring Response Patterns And Correlates, Brittany K. Willey

Clinical Psychology Dissertations

Few studies have focused on the joint contributions of baseline and stress-responsive RSA on mental health outcomes, and no research to date has examined naturally-occurring profiles of RSA, which may be more predictive of emotion regulation ability and mental health outcomes than looking at either component of RSA alone. Participants were 235 (87.1% female, 73.6% Caucasian) undergraduates ages 18-39 (M = 19.62, SD = 2.12). In Part 1, latent growth mixture modeling (LGMM) was used to identify naturally-occurring physiological profiles accounting for both resting and stress-reactive RSA among young adults. In Part 2, multivariate ANCOVAs were used to predict …

Examining The Interaction Between Stress Exposure And Stress Reactivity As Predictors Of Reward Sensitivity And Anhedonia Symptoms, Joshua Ahles

Clinical Psychology Dissertations

There is a well-documented relationship between stress and depression, although only recently has the field begun to articulate clear models regarding how stress exerts this effect. One prominent model highlights the disruptive impact of stress on reward processing, which relates to anhedonia – a cardinal symptom of depression. Vulnerability-stress models also play an important role in depression research and hold that individual differences in responses to stress may exacerbate the relationship between stress and depression. Pre-ejection period (PEP) reactivity to reward has been posited as an index of reward sensitivity and approach motivation and has been increasingly linked to depression. …

Stress And Somatic Symptoms: Rumination And Negative Affect As Moderators, Melissa Joy Garner

Clinical Psychology Dissertations

This study examined the relationships between stress, negative affect, rumination, and somatic symptoms among older adolescents. The following hypotheses were investigated: 1) greater number of life stressors would predict greater somatic symptoms, 2) rumination would moderate the relationship between stressors and somatic symptoms, 3) negative affect would also moderate the relationship between stressors and somatic symptoms, and 4) a three-way interaction between stress, rumination and negative affect would significantly predict somatic symptoms. Participants were 363 (71.1% female) university students with a mean age of 19.06 years (SD=2.06 years) who completed eight weekly online questionnaires, assessing levels of rumination …

The Abcs Of Stress Responding: Examining The Time Course Of Affective, Biological, And Cognitive Responses To Induced Stress As Prospective Predictors Of Depressive Symptoms, Marissa Erin Rudolph

Clinical Psychology Dissertations

Vulnerability-stress models of depression posit risk for depression is characterized by the presence of underlying affective, biological, and cognitive vulnerabilities that become activated during life stress exposure. Extant research has shown heightened reactivity to stress across these vulnerability domains predicts depression; however, little is known whether the persistence of and failure to down-regulate these maladaptive stress responses conveys greater risk of depression than initial reactivity alone. The current study examined associations between the time course of responses to a laboratory stress induction and depressive symptoms. I hypothesized that prolonged maladaptive responses to the stressor across affective (state negative affect; NA), …