Digital Commons Network^™

Stresses Of Mothers Caring For An Older Adolescent Diagnosed With Autism: A Phenomenological Exploration, Linda Mason

Antioch University Dissertations & Theses

A review of the literature provides ample research about caregiver stress in relationship to healthcare needs, aging, and mental illness. However, there is limited research about caregiver stress in regard to families that care for a child with disability. Further limited in scope is research about mothers who care for an older adolescent with diagnosed autism. This qualitative phenomenological study explored the lived experience of six mothers caring for an older adolescent diagnosed with autism. The question about what causes stress resulted in findings: isolation, coping with their child's challenging behaviors, and frustration with the establishment. The question about what …

The Effects Of Food Insecurity On Mental Wellbeing In Monteverde Costa Rica, Robert Eugene Cowherd

USF Tampa Graduate Theses and Dissertations

The rapid expansion of ecotourism in the Monteverde zone of Costa Rica has increased the incidence in food insecurity in the area. Changes in food preferences and availability have led to a more homogenized diet that is increasingly delocalized and reliant on processed foods. Additionally, there has been a rapid economic shift away from agricultural and dairy farming to an economy more reliant on tourism. This NSF supported study builds upon data from a longitudinal investigation (#BNS 0753017) examining the nutritional effects of this rapid economic transition. Using a mixed methods approach, a culturally appropriate scale of stress was developed …

Wetland And Lake Destruction, Development And Mental/Emotional Distress Among Residents Of Tampa Bay, Florida, Gina Larsen

USF Tampa Graduate Theses and Dissertations

The purpose of this research project is to understand how local environmental destruction in Tampa Bay, Florida, including changes in water resources and development activities, affects local Tampa Bay residents mentally and emotionally. The study also examines residents' personal connections with their landscape and documents the degree of stress that may be caused by experiencing environmental destruction through the use of interviews, freelists, and two psychometric stress scales (Hopkins Symptom Checklist-10 and the Environmental Distress Scale). The topic of emotional distress and environmental change has rarely been studied in social science research, particularly in the United States and with regards …

Protective-Restoring To Maintain Self Integrity : A Grounded Theory Of The Human Experience Of Dog Relinquishment, Mary Ellen Elizabeth Edwards

Theses: Doctorates and Masters

Dog relinquishment or ‘getting rid of the dog’ is common practice in Australia and other countries where dogs are kept as pets. Each year thousands of dogs are relinquished for a variety of reasons. While losing a pet through death can be as devastating for some people as the death of a loved human, little is known about the human impact of losing a dog through relinquishment. This qualitative study sought to explore the experience of dog relinquishment from the perspectives of a Western Australian sample of 21 relinquishers, 10 adults who had experienced dog relinquishment in childhood and 15 …

A Non-Invasive Assay For Monitoring Stress Responses: A Comparison Between Wild And Captive-Reared Rainbowfish (Melanoteania Duboulayi), Amina Zuberi, Sinan Ali, Culum Brown

Aquaculture Collection

The stress response of wild and captive reared rainbowfish (Melanoteania duboulayi) following chasing by a simulated predator was examined. Cortisol release rate was monitored using a flow through system by measuring water borne hormone levels. Tests using known cortisol concentrations revealed that the technique yielded 95% of the cortisol present in the water. Cortisol release rates increased several fold in both populations after being chased but peaked at different time periods. Wild fish showed a typical stress response with release rate rising to (2.29±0.22 ng g⁻¹ h⁻¹) 2 h after exposure followed by rapid recovery. The captive-reared …

Changes In Spirituality Partly Explain Health-Related Quality Of Life Outcomes After Mindfulness-Based Stress Reduction., Jeffrey M Greeson, Daniel M Webber, Moria J Smoski, Jeffrey G Brantley, Andrew G Ekblad, Edward C Suarez, Ruth Quillian Wolever

College of Science & Mathematics Departmental Research

Mindfulness-Based Stress Reduction is a secular behavioral medicine program that has roots in meditative spiritual practices. Thus, spirituality may partly explain Mindfulness-Based Stress Reduction outcomes. Participants (N = 279; M (SD) age = 45(12); 75% women) completed an online survey before and after an 8-week Mindfulness-Based Stress Reduction program. Structural equation modeling was used to test the hypothesis that, following Mindfulness-Based Stress Reduction, the relationship between enhanced mindfulness and improved health-related quality of life is mediated by increased daily spiritual experiences. Changes in both spirituality and mindfulness were significantly related to improvement in mental health. Although the initial mediation hypothesis …

Maternal Separation Affects Dopamine Transporter Function In The Spontaneously Hypertensive Rat: An In Vivo Electrochemical Study, Jacqueline S. Womersley, Jennifer H. Hsieh, Lauriston A. Kellaway, Greg A. Gerhardt, Vivienne A. Russell

Neuroscience Faculty Publications

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a developmental disorder characterised by symptoms of inattention, impulsivity and hyperactivity. The spontaneously hypertensive rat (SHR) is a well-characterised model of this disorder and has been shown to exhibit dopamine dysregulation, one of the hypothesised causes of ADHD. Since stress experienced in the early stages of life can have long-lasting effects on behaviour, it was considered that early life stress may alter development of the dopaminergic system and thereby contribute to the behavioural characteristics of SHR. It was hypothesized that maternal separation would alter dopamine regulation by the transporter (DAT) in ways that distinguish SHR …

The Relationship Of Acculturation And Acculturative Stress In Latina/O Youths’ Psychosocial Functioning, Marsha Tafoya

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to better understand how acculturation and acculturative stress are related to self-esteem, depression, substance use, and substance use problems in 206 Latina/o youth. Acculturation is the social and psychological process of change that occurs when an individual or group comes in contact with a different culture. The acculturation process can be positive, improving one’s life chances in the new culture, or it could be negative due to the challenging nature of change and adaptation to new cultural and social expectations. This difficulty creates a type of stress, called acculturative stress that has been found to be …

The Relationship Between Salivary Cortisol Levels And Stressful Behaviors Upon The Introduction Of A New Exhibit Mate In Captive Black And Gold Howler Monkeys (Alouatta Caraya) At The Hattiesburg Zoo, Cassie Mechelle Chandler

Master's Theses

Salivary cortisol levels were taken on a male and a female howler monkey and compared with behavioral observations during their introduction to one another into an exhibit at the Hattiesburg Zoo in order to determine the link between behavior and stress. This study sought to answer the following research questions: What behavioral responses occur when two howler monkeys are introduced into the same exhibit at a zoo? How stressed are the animals at different stages of the introduction? And, what is the correlation between behaviors and hormones, if any?

The study spanned four phases including a baseline phase, the initial …

Paradoxical Reversal Learning Enhancement By Stress Or Prefrontal Cortical Damage: Rescue With Bdnf., Carolyn Graybeal, Michael Feyder, Emily Schulman, Lisa M Saksida, Timothy J Bussey, Jonathan L Brigman, Andrew Holmes

Brain and Mind Institute Researchers' Publications

Stress affects various forms of cognition. We found that moderate stress enhanced late reversal learning in a mouse touchscreen-based choice task. Ventromedial prefrontal cortex (vmPFC) lesions mimicked the effect of stress, whereas orbitofrontal and dorsolateral striatal lesions impaired reversal. Stress facilitation of reversal was prevented by BDNF infusion into the vmPFC. These findings suggest a mechanism by which stress-induced vmPFC dysfunction disinhibits learning by alternate (for example, striatal) systems.

Some Things Are Better Left Not Unsaid: An Exploratory Study Of The Communicatively-Restricted Organizational Stressor, Justin P. Boren, Alice E. Veksler

Communication

In organizations, individuals seek the support of others to manage their day-to-day stress. Researchers within a social support paradigm have found that individuals who have communicative outlets to discuss their stressors are healthier psychologically and physiologically. To the extent that those outlets are restricted, individuals may suffer the deleterious effects of stress. Therefore, this manuscript conceptualizes and explores one such stressor, the Communicatively-Restricted Organizational Stressor (CROS). Based on a sample of 405 organizational members, we identified the existence and explicated the nature of this stressor. Results were generally inconclusive. Discussion focused on significant findings and the need for better operationalization …

The Impact Of An Enacted Social Support Training Intervention On Worklife Interaction And Stress In A Sample Of Working Adults, Justin P. Boren, Jess K. Alberts

Communication

The present investigation explores utilizes an enacted social support intervention among a group of working adults. Reductions in psychological and physiological stress were hypothesized to occur following the experimental intervention. Participants (N = 46) were all full time staff members at a large university and were randomly assigned to treatment or wait-list control groups. Treatment group members attended two 90 minute enacted social support meetings over the course of four weeks. Psychological (perceived stress and worklife conflict) and physiological (salivary cortisol) data were collected at both pretest and posttest periods. Results did not support the research hypotheses; however, a research …

Long Term Effects Of Chronic Variable Stress Administered During Different Developmental Stages In Mice, Henry Boeh

Dissertations (1934 -)

A number of studies have suggested that the occurrence of past trauma can increase an individual's chance of developing PTSD from a new traumatic experience later in life. Trauma that occurs during childhood appears to have a particularly strong effect on this risk increase. Furthermore, conditioned fear responses have been shown to incubate over extended periods of time in animal models. To further investigate the role these phenomena play in the development of PTSD, this study exposed juvenile and adult mice to 7 days of chronic variable stress (CVS). One month later, a Pavlovian delay fear conditioning procedure was used …

Stress And Status : How Socioeconomic Status Affects Stress In Young Adult Women, Emma Katharine Yovanoff

Theses, Dissertations, and Projects

Numerous studies highlight the connection between women with low socioeconomic status (SES) and stress; however, there is a gap in the literature in regards to women with high SES status or what these two groups may have in common. The present study used a mixed methods approach to examine how types and levels of stress differ between women ages 18-24 years who have lower and higher socioeconomic status. Participants were 106 women with either low or high SES between the ages of 18-24 years. Data were collected using an anonymous online survey to determine each participant's SES and to identify …

The Impact Of The Gender Binary On Gender Nonconforming Females' Lives And Psyches Over Time : An Exploratory Study, Samantha Mayne Miller

Theses, Dissertations, and Projects

The purpose of this research is to explore the impact of the systematically imposed gender binary on the lives and psyches of gender non-conforming females over time. To pursue this qualitative research, I conducted single, exploratory, hour-long interviews with eight gender nonconforming females aged 59 years and older. The interviews touched upon many themes including the multiple ways participants' identify their gender, sex, and sexuality (and the developmental trajectory of each); how each participant relates to notions of the gender binary; participants' experiences as gender nonconforming young people, or "tomboys"; ways that families, institutions and the general public have performed …

Mujeres Cultivando Raices : The Experience Of Mexican Migrant Farmworking Women And How They Cope In Reaction To Stress, Joana Padilla Zapata

Theses, Dissertations, and Projects

This qualitative study investigates the subjective experiences of Mexican migrant farmworking women in the South Texas region. This study will provide an understanding of how stress of the migrant farmwork lifestyle affects Mexican migrant farmworking women. Specifically, the line of inquiry is guided by one main research question: How do Mexican migrant farmworking women cope in reaction to stress? This study reviews a range of literature on migrant farmworkers and the significant stressors they are faced with. Through their own narratives, 12 female Mexican migrant farmworkers from the South Texas region reveal how they are confronted with the complex stressors …

Bovine Respiratory Disease: Understanding How Stress Modulates Immune And Growth Parameters When Cattle Are Challenged With Respiratory Pathogens (Viral And Bacterial), Shollie Falkenberg

Theses and Dissertations

Bovine respiratory disease (BRD) complex is a multiactorial disease syndrome that results from various individual contributions and interactions of pathogen, host, and environmental/management factors. Despite the efforts in research, prevention and treatment, BRD remains a leading cause of economic loss in the cattle industry. While advances in therapeutics and new vaccines have been developed over the past 20 – 25 years, the incidence of respiratory disease does not appear to be on the decline, rather it is appears to be increasing. While bacterial and viral pathogens, and various stressors associated with BRD have been characterized, there are no animal models …

An Investigation Into The Relationship Between Conscientiousness, Self-Awareness, And Occupational Stress Outcomes In Culinary Chefs, Tanja M. Hinterstoisser

Electronic Theses and Dissertations

The purpose of this study was to investigate whether, and to what extent, Conscientiousness, as part of the personality construct, and Self-Awareness, as part of the emotional intelligence construct, influence the occupational stress outcomes of absenteeism and burnout in culinary chefs. The research method and design selected for this study was a quantitative correlation and regression. The researcher selected the Self-Awareness factors from the ECI - 2.0, and the Conscientiousness factors from the NEO-FFI to measure the individual and interactive effect on absenteeism and burnout. The experience of burnout itself was measured the Maslach Burnout Inventory - GS, and absenteeism …

Preferential Quadriceps Activation In Female Athletes With Incremental Increases In Landing Intensity, Kevin R. Ford, Gregory D. Myer, Laura C. Schmitt, Timothy L. Uhl, Timothy E. Hewett

Physical Therapy Faculty Publications

The purpose of this study was to identify alterations in preparatory muscle activation patterns across different drop heights in female athletes. Sixteen female high school volleyball players performed the drop vertical jump from three different drop heights. Surface electromyography of the quadriceps and hamstrings were collected during the movement trials. As the drop height increased, muscle activation of the quadriceps during preparatory phase also increased (p < .05). However, the hamstrings activation showed no similar increases relative to drop height. Female athletes appear to preferentially rely on increased quadriceps activation, without an increase in hamstrings activation, with increased plyometric intensity. The resultant decreased activation ratio of the hamstrings relative to quadriceps before landing may represent altered dynamic knee stability and may contribute to the increased risk of ACL injury in female athletes.

What Do We Know About The Causes And Consequences Of Salmonid Social Hierarchies From Laboratory Experiments?, Lewis Eaton

The Plymouth Student Scientist

The main focus of this review will be to examine the current understanding of the causes and consequences of salmonid hierarchies as well as the implications to wild populations and aquaculture. Salmonid dominance hierarchies readily form under laboratory conditions, this has allowed extensive research into social structures. There is limited research into the causes of social status, however, the cause is likely to be a combination of standard metabolic rate, body size and prior competitive experience. A wide range of research outlines the consequences of social status from behavioural changes in aggression and submission to physiological changes in disease resistance, …

Association Between Stress And Decisional Procrastination In Parents Of Children With Down Syndrome During Their Developmental Transitions, Laurel Zeisler

Seton Hall University Dissertations and Theses (ETDs)

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The Effect Of Improvisations And Observations On Standardized Patient Encounters, Subjective Workload And Stress, Elizabeth T. Newlin-Canzone

Psychology Theses & Dissertations

Standardized patients (SPs) are people trained to present a medical case for teaching and assessing medical students and they simultaneously perform several demanding tasks including portraying the patient, assessing the learner, and providing feedback. This study investigated the effect of improvisations and multiple task performance on the ability to observe another's nonverbal (NV) behaviors and rate their communication skills. Subjective reports of mental workload and stress were also obtained. The first study involved undergraduates interviewing for a job. Type of interview (rote and improvisational) and type of observation (passive and active) were manipulated within groups. Based on theories of attention …

Adaptive Significance Of Natural Variations In Maternal Care In Rats: A Translational Perspective, Annaliese K. Beery, Darlene D. Francis

Neuroscience: Faculty Publications

A wealth of data from the last fifty years documents the potency of early life experiences including maternal care on developing offspring. A majority of this research has focused on the developing stress axis and stress-sensitive behaviors in hopes of identifying factors impacting resilience and risk-sensitivity. The power of early life experience to shape later development is profound and has the potential to increase fitness of individuals for their environments. Current findings in a rat maternal care paradigm highlight the complex and dynamic relation between early experiences and a variety of outcomes. In this review we propose adaptive hypotheses for …

Role Of Cortisol In Social And Memory Impairments In Individuals With Velocardiofacial Syndrome (Vcfs), Daniel Jacobson

Master's Theses and Doctoral Dissertations

Velocardiofacial Syndrome (VCFS) is a genetic disorder characterized by numerous physiological and psychological symptoms. Little is known regarding the neuropsychological and hormonal substrates and the social functioning in individuals with VCFS. There is some evidence to suggest that the stress hormone cortisol contributes to social, cognitive, and communication deficits in related populations (Corbett, Schupp, Levine, & Mendoza, 2009). This study investigated the role that cortisol has on the social and cognitive impairments observed in children with VCFS. To this end, 11 children with confirmed VCFS were assessed for baseline cortisol levels and received neuropsychological testing that assessed attention, memory, language, …

Biomarker Signature Classification Of Various Stress Forms, Chana L. Rich

Honors Scholar Theses

Various types of stressful conditions can have unique and important effects on immunity and can lead to dramatic consequences to health. For my University Scholar project, the characteristic biomarker signatures produced from a set of diverse stressors (e.g. psychological, biological and chemical) are being investigated. A biomarker signature is a distinctive biological indicator of a specific condition. High-throughput tools for the measurement of different cellular products have the potential to further our understanding of human disease and facilitated the identification of new biomarkers in all areas of medicine. The hypothesis that each form of stress, psychological, chemical and physical, will …

What Attracts Older Nurses To Organizations? Psychological Moderators Of The Impact Of Flexible Scheduling And Mentoring Opportunities, Sarah Dubose

All Theses

The current study investigated two psychological moderators (generativity and occupational stress) of the impact of flexible scheduling and mentoring opportunities on the attraction and application intentions of older nurses of bridge employment age. Of the 600 registered nurses who were contacted via postal mail, 101 responded. Participants were randomly assigned to one of six conditions in which a hypothetical job advertisement was manipulated with varying levels each of flexible scheduling (input vs no input into the schedule) and mentoring opportunities (formal, informal, and none). Input was found to have a main effect on organizational attraction, but main effects were not …

Dealing With Manhood : General Strain Theory, Masculinity, And The Engagement In Illicit Drug Trafficking., Sonita L. Arnold

Electronic Theses and Dissertations

This thesis integrates James Messerschmidt's Masculinity Theory (1997) with Robert Agnew's General Strain Theory (1992) to examine the relationship between failure to achieve ideal masculine standards, resultant psychological stressors, and the decision to engage in illicit drug activity. OLS and Binary Logistic Regression was performed on a sample of male college students (N = 851) to examine three hypotheses. Findings support the hypothesis that a positive relationship exists between failed masculinity and negative emotions. Partial support was found for the hypothesis that a positive relationship exists between negative emotions and drug trafficking. Partial support was also found for the hypothesis …

Coping Methods Of Female Correctional Officers, Kathryn Flannery

Justice Studies Theses

A huge population increase has happened in the last 39 years for females working in the correctional field. Unfortunately, the research has barely kept up with such gender progress in the workforce. A much needed study on stress and the female correctional officer was conducted to evaluate three certain hypotheses: it is hypothesized that years of service are associated with different stress levels, that years of service is associated with different coping strategies, and that stress and coping are negatively related. Independent T-tests, multiple ANOVAs, and one-way ANOVAs found that there were not any correlational relationships for years in service …

Teams And Stress: A Meta-Analysis And Process Analysis, Brandy Brown

All Dissertations

Past teamwork stress literature has experienced contradictory findings. As more reliable models of teamwork emerge, there is still a noticeable lack of information regarding how stress affects teamwork processes. This paper first reviews the current state of the team stress literature, where two types of stress for teams are explored: qualitative and quantitative stress. A meta-analysis examined the current literature on quantitative stress and the impact on team performance and effectiveness. Results from nine independent samples (N = 1,794) indicated that quantitative stress has a negative effect on team outcomes, ῤ = -.41. Second, a lab study sought to discover …

The Effects Of Job Stress On Law Enforcement Marriages And Methods Of Combating The Job Stress, Richard T. Matthews

Senior Honors Theses

The reality of how law enforcement stress affects individuals and marriages will be presented in light of its causes and dangers to officers, as well as how the stress affects officers’ marriages. The marital problems stemming from law enforcement stress can progress from producing less spousal interaction and communication issues, to presenting opportunities for infidelity, and eventually result in divorce. Before countering the impact of job stress upon marriage, officers must first deal with the stress individually. Marriages do not have to end as a result of job stress. By seeking family therapy and by relying on God, law enforcement …