Digital Commons Network^™

Impact Of Childhood Maltreatment And Endocannabinoid Function On Posttraumatic Stress Symptoms In Traumatically-Injured Adults, Elizabeth Parisi

Theses and Dissertations

The ECSS plays a crucial role in regulation of the stress response, is modulated by exposure to acute and chronic stressors, and shows potential as a biomarker for PTSD. Changes in ECSS function are apparent in adults with a history of childhood maltreatment. Further, childhood maltreatment is a well-established pre-trauma risk factor for development of PTSD following a traumatic event in adulthood. No study to date has examined the contribution of ECSS function to the relationship between childhood maltreatment and PTSD following a subsequent trauma in adulthood. The current study aimed to investigate the relationship between exposure to threat and …

Prior Experiences Of Racial Discrimination Impact Acute Resting-State Connectivity Of The Bnst As A Predictor Of Ptsd In Black Adults, Kevin Petranu

Theses and Dissertations

Altered resting-state activity of the bed nucleus of the stria terminalis (BNST) – which mediates anxious arousal and threat monitoring – is implicated in the etiology of posttraumatic stress disorder (PTSD). Experiences of racial discrimination can also increase one’s risk for developing PTSD by eliciting chronic states of hypervigilance, which impair essential resting-state processes related to fear extinction. Considering the frequency in which Black Americans experience racial discrimination, the current study investigated acute BNST resting-state functional connectivity as a predictor of future PTSD symptoms, as well as the impact of racial discrimination on the BNST as a predictor of PTSD. …

Prior Experiences Of Racial Discrimination Impact Acute Resting-State Connectivity Of The Bnst As A Predictor Of Ptsd In Black Adults, Kevin Petranu

Theses and Dissertations

Altered resting-state activity of the bed nucleus of the stria terminalis (BNST) – which mediates anxious arousal and threat monitoring – is implicated in the etiology of posttraumatic stress disorder (PTSD). Experiences of racial discrimination can also increase one’s risk for developing PTSD by eliciting chronic states of hypervigilance, which impair essential resting-state processes related to fear extinction. Considering the frequency in which Black Americans experience racial discrimination, the current study investigated acute BNST resting-state functional connectivity as a predictor of future PTSD symptoms, as well as the impact of racial discrimination on the BNST as a predictor of PTSD. …

Prolonged Distress In Residents Exposed To A Technological Disaster, Lindsey S. Hieber

Theses and Dissertations

This study investigated the prolonged emotional and behavioral effects of an ongoing technolog-ical disaster, the Flint Water Crisis. Past research indicates that surviving a technological disaster may have prolonged effects, including stress related disorders, even after the initial exposure pe-riod has passed. The survey consisted of questions involving knowledge of the effects of lead and Legionnaires’ disease as well as questions regarding how to use water filters properly, ques-tions modeled after the Health Belief Model, behavioral changes, and an anxiety, stress, and de-pression scale. Additionally, there were questions asking participants how well they feel the crisis was handled, how much …

Buffering Of Physiological And Affective Reactivity By A Single Proactive 5-Minute Stress Management Technique, Kayla Talia Johnson

Theses and Dissertations

A plethora of recent research highlights the long-term chronic disease risks of elevated blood pressure (BP), heart rate (HR) and affective and cognitive responses to mental stressors and how traditional forms of mindfulness meditation (MM) and progressive muscle relaxation (PMR) may help offset these long-term risks. On top of that, briefer forms of MM (e.g., 3-day training sessions) have shown benefits for emotional and physical health. Further, perseverative cognitions, or the tendency to worry and rumination about stressful events, is linked with heightened CV reactivity, and may impede the success of stress management techniques. The purpose of this study was …

Buffering Of Physiological And Affective Reactivity By A Single Proactive 5-Minute Stress Management Technique, Kayla Talia Johnson

Theses and Dissertations

A plethora of recent research highlights the long-term chronic disease risks of elevated blood pressure (BP), heart rate (HR) and affective and cognitive responses to mental stressors and how traditional forms of mindfulness meditation (MM) and progressive muscle relaxation (PMR) may help offset these long-term risks. On top of that, briefer forms of MM (e.g., 3-day training sessions) have shown benefits for emotional and physical health. Further, perseverative cognitions, or the tendency to worry and rumination about stressful events, is linked with heightened CV reactivity, and may impede the success of stress management techniques. The purpose of this study was …

Hpa Axis Genetic Variation And Life Stress Influences On Functional Connectivity In Resting State Networks, Tara Ann Miskovich

Theses and Dissertations

Stressful or traumatic experiences are a key risk factor for developing psychopathology, primarily through the impact that chronic stress has on hypothalamic-pituitary-adrenal (HPA) axis functioning. The HPA axis regulates the stress response but can become dysregulated with chronic activation and impact brain functioning. In addition to environmental stressors, genetic variation in genes in the HPA axis appear to influence HPA axis functioning and is also related to disruption in brain functioning, particularly in the context of high life stress. The current study focused on examining potential mechanisms through which trauma and stress interacts with HPA axis genes to impact key …

Effects Of Laughter On Self-Report And Psychophysiological Measures Of Stress, Alese M. Nelson

Theses and Dissertations

The purpose of this study was to investigate the relationship between laughter and stress reduction. Past research indicates that humor is related to stress reduction, but little is known about the specific role of laughter. It was hypothesized that laughter would have a similar effect. Stress was elicited through a mental arithmetic task, which was followed by a viewing of either a laughter-inducing video or a control (nature) video. Stress levels were assessed with both self-report and psychophysiological measures, including heart rate and respiration rate. Data was analyzed using one-within and one-between repeated measures ANOVAs. It was found that there …

Alcohol Use Disorders And An Fmri Stress Task: A Connectivity Analysis, Natasha E. Wright

Theses and Dissertations

Little research has been conducted on neuronal stress processing in individuals

with alcohol dependence (AD). The present study examined neural stress response in AD individuals compared to controls using an fMRI stress task, assessing amygdala

activation and its connectivity to the medial prefrontal cortex (mPFC). Further, the study

analyzed the impact of hormone levels and subjective stress on frontal-limbic

connectivity patterns.

Ten abstinent AD individuals and 11 controls were recruited. Subjects

participated in an fMRI stress task. A region of interest (amygdala) analysis was

conducted using area-under-the-curve. This activation was then examined in a whole brain functional connectivity analysis. Follow-up …

Effects Of Dietary Preference On The Experience Of Anxiety, Depression And Acute Stress Response, Shaun Stearns

Theses and Dissertations

Research has demonstrated that high saturated fat and low carbohydrate consumption may provide physiological benefit in the treatment of major neurological disorders, though not much research has explored if these benefits extend to the experience of anxiety, depression, stress and physical symptoms. The purpose of this study was to explore the relationship between fat consumption and negative emotional/physiological states (anxiety, depression, stress and physical symptoms). This study also explored how fat consumption can alter one's response to an acute stress. Participants completed an online survey indicating their food preferences and their responses to a number of self-report scales such as …

Short-Term Changes In Responses To Stress In Runners, Molly Ann O'Connor

Theses and Dissertations

The use of physical activity to cope with stress is becoming increasingly popular. Research indicates that individuals who routinely engage in cardiovascular exercise report better overall physical and psychological health and reduced reactions to stress than those who do not. In addition, there may be short-term improvements for these individuals on days when they exercise. The current study was designed to examine short- and long-term differences between runners and non-runners. Cardiovascular, affective, and behavioral data were collected from runners over a two-day period that included a running day and a rest day, and over a similar period in a non-running …

Walk It Off!: The Relationship Between Physically Active And Passive Coping Style And Perseverative Cognition, Michelle Rosalie Di Paolo

Theses and Dissertations

ABSTRACT

WALK IT OFF!: THE RELATIONSHIP BETWEEN PHYSICALLY ACTIVE AND PASSIVE COPING STYLE AND PERSEVERATIVE COGNITION

by

Michelle R. Di Paolo

The University of Wisconsin-Milwaukee, 2013

Under the Supervision of Professor Marcellus Merritt

The main aim of the current study is to assess if a relationship exists between self-selected coping styles and levels of perseverative cognition (PC). Recent pilot studies have revealed a relative distinction between the coping styles people choose when coping with stress, i.e., those that are physically active (PAC) like going for a walk, jogging, or lifting weights, and those that are physically passive (PPC) like reading …