Medicine and Health Sciences Commons^™

Exploring The Effects Of Christian Worldviews On Heart Rate, Stress, And Adjustment After Loss In Bereaved Individuals, Emma Radini Ratnavel

Honors Scholar Theses

The objective of this study is to investigate the correlation between Christian values, perceptions of God, and physiological stress, assessed through heart rate, among individuals who are experiencing grief due to the loss of a loved one. Previous studies have analyzed various physiological effects on the body. There are very few studies that examine the correlation between Christian values and heart rate in bereaved participants. To explore these topics further, this study analyzes 59 undergraduate students who have recently lost a loved one, identify as a Christian, and are at least 18 years old. The participants' perceptions of God and …

Role Of Chronic Stress-Induced Neuroinflammation In Rodent Locus Coeruleus Physiology And Anxiety-Like Behaviors, Arthur Anthony Alfonso Reyes

Graduate School of Biomedical Sciences Theses and Dissertations

The locus coeruleus (LC), the primary site of brain norepinephrine (NE), is a key anatomical brain region implicated in the stress response. Stress is a neuroendocrine physiologic response to a stressor that promotes organism survival through adaptive change and restoration of homeostasis. The central stress response, which drives behavioral and physiological change, is primarily mediated by activating the hypothalamic-pituitary-adrenal (HPA) axis. While advantageous in the short term, chronic stress exposure can lead to HPA axis and LC dysregulation, which are thought to contribute to the etiology of anxiety disorders. Previous studies demonstrate the effects of acute stress in increasing LC …

Examining The Effects Of A Zoom Interview On Cortisol, Bennett Perkins

Psychological Science Undergraduate Honors Theses

The stress response is an essential physiological process that facilitates survival in threatening conditions. Stress impacts numerous bodily systems, and prior work has focused on cortisol, a steroid derived from cholesterol, as a key biomarker for assessing biological stress reactivity in humans. Social stressors are known to contribute to marked increased in cortisol levels, but to date little work has examined whether social situations known to be stressful in person can influence cortisol when those situations occur remotely. In this study, I investigated the effects of a Zoom-based social stressor on salivary cortisol. Participants were randomly assigned to the Zoom-stress …

Academic Stress And Anxiety In Nursing Students: An Aerobic Exercise Intervention, Mariko Danielle Aka

DNP Research Projects

Abstract

Background: The demands of rigorous nursing education programs often cause students to experience high levels of stress and anxiety during their schooling. Moderate to high academic stress and anxiety levels impact nursing students around the world. This is significant as academic stress and anxiety contribute to decreased academic success, program completion, and student health.

Local Problem: Students at Kettering College and Southern Adventist University were found to have moderate academic stress and anxiety using the SNSI and GAD-7.

Intervention: Participants (N = 24) engaged in a 4-week aerobic-exercise intervention. They were required to complete a minimum of 80 …

Neurobiology Of Ptsd In Adults And Children: The Impact Of Stress-Induced Brain Abnormalities Across The Lifespan, Catherine Clover

Undergraduate Honors Theses

In the scholarly community, there is disagreement about the effects of PTSD or chronic stress on the brain of adults and children. Though PTSD or chronic stress are known to negatively affect neurobiological structures, specifically due to prolonged glucocorticoid excess, volumetric discrepancies between traumatized and control groups are not unanimously confirmed. This review sought to address the common understandings in academia of the effects of PTSD on the brains of adults and children. Literature on this topic indicated that, in adults, the hippocampus, cingulate gyrus, and prefrontal cortex bilaterally appeared to decrease in gray matter volume and the corpus callosum …

Early Life Exposure To Unpredictable Parental Sensory Signals Shapes Cognitive Development Across Three Species, Elyssia Poggi Davis, Kari Mccormack, Hina Arora, Desiree Sharpe, Annabel K. Short, Jocelyne Bachevalier, Laura M. Glynn, Curt A. Sandman, Hal S. Stern, Mar Sanchez, Tallie Z. Baram

Psychology Faculty Articles and Research

Exposure to early life adversity has long term consequences on cognitive function. Most research has focused on understanding components of early life adversities that contribute to later risk, including poverty, trauma, maltreatment, and neglect. Whereas these factors, in the aggregate, explain a significant proportion of emotional and cognitive problems, there are serious gaps in our ability to identify potential mechanisms by which early life adversities might promote vulnerability or resilience. Here we discuss early life exposure to unpredictable signals from the caretaker as an understudied type of adversity that is amenable to prevention and intervention. We employ a translational approach …

Cognitive Load Effect On Moral Decision Making, Elise Crause, Liz Eisenga, Caroline Hopper, Merry Bailey

Science University Research Symposium (SURS)

Cognitive Load Effect on Moral Decision Making

Elise Crause, Merry Bailey, Liz Eisenga, Caroline Hopper

Choices are made each day to determine the outcome of our lives. To better understand the human process of decision making, philosophers and psychologists have examined moral dilemmas. Cognitive load is a type of stress that alters decision-making and the likelihood of choosing a self-motivated behavior over a behavior that benefits another person or group. For this study, moral dilemmas were given in sets of two before and after a cognitive-load-inducing task. The cognitive-load-inducing task required participants to verbally answer subtraction problems until the answer …

A Randomized Controlled Trial Of Psychological Outcomes Of Mobile Guided Resonant Frequency Breathing In Young Adults With Elevated Stress During The Covid-19 Pandemic, Al Amira Safa Shehab

Dissertations, Theses, and Capstone Projects

Deep breathing practices have shown promise in reducing stress, anxiety, and depression in different populations, including young adults. Specifically, resonant frequency breathing can exert an impact on stress response systems through the vagus nerve and the hypothalamo-pituitary-adrenal (HPA) axis. This may induce reductions in stress and improvement in emotion regulation. Young adults, including college students, tend to be at a higher risk for psychological distress, as they face several psychosocial challenges. The COVID-19 pandemic has imposed new and unique stressors that resulted in higher levels of stress and emotional symptoms and it has been shown that this may have placed …

Academic Stressors, Perceived Stress, And Coping Strategies Among Undergraduate Students, Danielle J. Levin

Senior Honors Projects, 2020-current

Stress is common among college students and is a predominant factor interfering with academic performance. This study evaluated how college students perceive their level of stress, the coping strategies used, and the use of resources to offset stress offered by the university. This study showed that overall, undergraduate students at JMU experienced moderate levels of stress. Pressure to succeed, balancing coursework, and lack of motivation were the most prevalent academic stressors experienced by students. This study provides evidence that perceptions of stress greatly impact student behavior and use of coping strategies. Variation in coping strategies among students highlights the importance …

How Duty Rosters And Stress Relate To Sleep Problems And Fatigue Of International Pilots, Marion Venus, Martin Grosse Holtforth

International Journal of Aviation, Aeronautics, and Aerospace

While previous research focused on pilots’ fatigue, rosters, potential performance-impairment and aviation-safety, this research investigates, how pilots’ work-related and psychosocial stress and rosters can affect their sleep and fatigue. A cross-sectional online survey was completed by 192 pilots flying for European operators, 180 Australian pilots and 34 pilots from UAE, Turkey and Asia Pacific. Pilots reported their actual duty- and flight-hours, flown sectors, standby, rest, vacation days, number of early starts, night-flights and sports-hours for the last two months. Schedule-related data, way to work, age, flight-hours on the present type of aircraft, subjective job-security and psychosocial stress were used as …

Biological And Social Links Between Eating Behavior And Stress Among College Students, Kailyn M. Mutsch

Honors Thesis

Stress and eating behaviors are known to be correlated in all ages but is primarily associated with young adults. This correlation can be attributed to both biological and social links. In this review, I detail the effects of stress on the brain in a biological manner and the areas of the brain associated with eating behavior. I will also discuss social factors that could contribute to the correlation between stress and eating behavior in college students. Stress is a major factor in optimal digestion and health. A majority of students report experiencing times of stress or feeling overwhelmed throughout their …

Mindfulness Training's Effect On Stress, Attention, And Perfectionism And Their Relationship To Achievement Goals, Alexandra Lesniak

Undergraduate Honors Theses

In recent years, the practice of cultivating mindfulness, a nonjudgmental awareness of the present moment, has made a resurgence in areas ranging anywhere from behavioral issues to work and academic productivity (Brown & Ryan, 2003a). The current study was focused on the relationships between mindfulness, achievement styles, stress, attention, and perfectionism at a single-sex, liberal arts institution. One hundred and five undergraduate, female students participated in this study. All participants were randomly assigned to either a mindfulness audio condition or a badminton audio condition as a control. Then, they were given measures relating to achievement goals, mindfulness capability, state mindfulness, …

Sleep And Stress In The Acute Phase Of Concussion In Youth, Arthur C. Maerlender, Caitlin Masterson, Jessica L. Calvi, Todd Caze, Ross Mathiasen, Dennis Molfese

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

This study sought to address the complex interplay between both biological and psychological perceptions of stress and sleep in the acute stages following a mild traumatic brain injury. A secondary goal was to identify potential targets for intervention. Eleven acutely injured youth (mean age 12 years) were studied at home with overnight actigraphy, salivary cortisol and melatonin assays, and subjective ratings of stress and fatigue (injured group). Nine matched control youth also were assessed (control group). Results suggested longer sleep latencies (time to fall asleep) and higher levels of fatigue in the injured group exist (p ¼ 0.025 and p …

Human Adaptability For Deep Space Missions: An Exploratory Study, Paul T. Bartone, Robert R. Roland, Jocelyn V. Bartone, Gerald P. Krueger, Albert A. Sciarretta, Bjorn Helge Johnsen

Journal of Human Performance in Extreme Environments

The present qualitative study conducts in-depth interviews with astronauts and other subject matter experts in order to shed light on human adaptability in extreme environments. Deep space travel will entail a range of highly stressful conditions to which astronauts must adapt. Feelings of isolation will be increased, as the space traveler is farther from Earth for longer periods of time. Daily life will take place in small and confined areas, for durations extending into years. The dangers of the extreme environment of space are ever-present, and failure of critical equipment or components can lead to death. Astronauts will need to …

The Influence Of Stressful Life Events On The Development Of Type 2 Diabetes, Joshua Minks

Dissertations

This study examined the relationship between distress and the development of Type 2 diabetes mellitus (T2DM) in the presence of established risk factors. Distress secondary to mental health disparities, stressful life events, and work conditions has been shown to promote insulin resistance and the development of T2DM.

Subjects (N=79) diagnosed with T2DM within the previous six months were recruited from SSM Health Centers and VA Medical Centers in the greater St. Louis area. They completed the Recent Life Changes Questionnaire, ENRICHD Social Support Instrument, and a demographic survey and analyses were conducted to determine differences between the veteran …

The Role Of Stress In The Pathogenesis And Maintenance Of Obsessive-Compulsive Disorder, Thomas G. Adams, Benjamin Kelmendi, C. Alex Brake, Patricia Gruner, Christal L. Badour, Christopher Pittenger

Psychology Faculty Publications

Individuals with obsessive-compulsive disorder often identify psychosocial stress as a factor that exacerbates their symptoms, and many trace the onset of symptoms to a stressful period of life or a discrete traumatic incident. However, the pathophysiological relationship between stress and obsessive-compulsive disorder remains poorly characterized: it is unclear whether trauma or stress is an independent cause of obsessive-compulsive disorder symptoms, a triggering factor that interacts with a preexisting diathesis, or simply a nonspecific factor that can exacerbate obsessive-compulsive disorder along with other aspects of psychiatric symptomatology. Nonetheless, preclinical research has demonstrated that stress has conspicuous effects on corticostriatal and limbic …

Neuronal Correlates For Neuroendocrine Habituation To Repeated Stress, Sara Matovic

Electronic Thesis and Dissertation Repository

One way that the body actively responds to an impending stressor is by increasing systemic glucocorticoids through the activation of the hypothalamic-pituitary-adrenal (HPA) axis. While it is essential for short-term adaptation to stress, the sustained activation of the HPA axis during chronic stress can be detrimental and is linked to stress-related psychiatric conditions such as anxiety and depression. Therefore, it is important that the HPA axis adapts, or habituates, during chronic stress to minimize the negative consequences. Corticotropin releasing hormone (CRH) neurons in the paraventricular nucleus of the hypothalamus (PVN) function to assimilate incoming information from the stress circuitry and …

Social Status Modulates Restraint- Induced Neural Activity In Brain Regions Controlling Stress Vulnerability , Sahba Seddighi, Matthew A. Cooper

Haslam Scholars Projects

Understanding the cellular mechanisms that control resistance and vulnerability to stress is an important step toward identifying novel targets for the prevention and treatment of stress-related mental illness. Dominant and subordinate animals have been shown to exhibit different behavioral and physiological responses to stress, with dominants often showing stress resistance and subordinates often showing stress vulnerability. We have previously found that dominant hamsters exhibit reduced social avoidance following social defeat stress compared to subordinate hamsters, although the extent to which stress resistance in dominants generalizes to non-social stressors is unknown. In this study, dominant, subordinate, and control male Syrian hamsters …

Sources Of Medical Student Stress, Krishna Subhash Vyas, Terry D. Stratton, Neelkamal S. Soares

Behavioral Science Faculty Publications

Background: Key elements in the clinical practice of prevention, health and wellness are best cultivated in medical professionals during undergraduate medical training. This study explores students' self-assessed stress relative to gender, academic expectations, and level of medical training to guide development of targeted wellness interventions. Methods: In early 2012, undergraduate (M1-M4) students in four Southeastern U.S. allopathic medical schools were surveyed about health-related attitudes and behaviors. Results: A total of 575 students returned completed questionnaires. Students in the preclinical years (M1-M2), especially females, reported significantly higher stress levels. Academic expectations and satisfaction were also significantly implicated. Discussion: These findings highlight …

Age Differences In Stress And Coping: Problem-Focused Strategies Mediate The Relationship Between Age And Positive Affect, Yiwei Chen, Yisheng Peng, Huanzhen Xu, William H. O'Brien

Psychology Faculty Publications

The present study examined the different types of stressors experienced by adults of different ages, their coping strategies, and positive/negative affect. A mediation hypothesis of coping strategies was tested on the relationships between age and positive/negative affect. One-hundred and ninety-six community-dwelling adults (age range 18-89 years old) reported the most stressful situation they experienced in the past month and coping strategies. Levels of positive and negative affect in the past month were also measured. Content analysis revealed age differences in different types of stressors adults reported. Three types of coping strategies were found: problem-focused, positive emotion-focused, and negative emotion-focused coping. …

Stress And Sleep Quality: Mediating Effects Of Social Support, Felisha L. Younkin, Elizabeth A. Axtell, Chelsea R. Anderton

The Research and Scholarship Symposium (2013-2019)

Stress is defined as the “nonspecific response of the body to any demand made upon it” (Kohn & Frazer, 1986). Stress is among the top five threats to academic performance among college students (Pettit & DeBarr, 2011). The purpose of the study was to investigate whether stress affects perceived sleep quality, as mediated by social support, and to determine whether stress levels vary based on academic major. Using ANOVA in SPSS 24, we tested three hypotheses: stress and sleep quality are negatively correlated, social support mediates the relationship between stress and sleep quality, and stress levels will vary by academic …

Towards A Not Obtrusive Low Cost Biosystem To Assess Risk Perception In Workplace Through Stress Detection, Emanuele Bellini, Serena Benevenuti, Chiara Batistini

H-Workload 2017: Models and Applications (Works in Progress)

The main aim of the article is to build a method to assess risk perception in real time in order to early detect and prevent risk behaviors and possible human errors. To this end, the relation between mental workload and stress as critical factors affecting risk perception has been investigated. In particular the mental-physical activation generated by an increment of the workload has the effect of reducing the resources needed to perceive risk increasing the worker vulnerability. The complexity of the stress phenomenon suggested the adoption of an integrated view. The Functional Model has been adopted to for its holistic …

State And Trait Anxiety: A Comparison Of The On And Off Field Anxiety Levels Of Athletes And Non-Athletes, Asha Satori Rutland Stegall

Honors College Theses

The purpose of this study was to quantitatively compare anxiety levels among collegiate basketball players and intramural athletes at a public, Division I university in the Southern part of the United States. This research looked at two different forms of anxiety: State Anxiety and Trait Anxiety. Surveys were completed by 60 students, 30 of which were classified as collegiate basketball players and the remaining 30 students were classified as non-collegiate intramural athletes. The data were analyzed using SPSS statistical software. The results showed no statistical difference in state or trait anxiety levels among different genders or athlete type. Further research …

Is Listening To Music While Exercising Effective In Reducing Stress?, Teresa Penetar

PCOM Physician Assistant Studies Student Scholarship

Objective: The objective of this selective evidence based medicine (EBM) review is to determine whether or not listening to music while exercising is effective in reducing stress.

Study Design: Review of three English language randomized control trials published in 2011 and 2013

Data Sources: The double-blind placebo-controlled randomized control trials were obtained via PubMed.

Outcomes Measured: Pretest-posttest surveys included the SF-36 Health Survey to assess self-reported health-related quality of life, the Activation- Deactivation Adjective Check List (AD-ACL) to measure mood, and a 9-item measure to assess emotion.

Results: Listening to music while exercising increased pleasant emotions in all 3 studies. …

Social Motivation Is Associated With Elevated Salivary Cortisol In Boys With An Asd, Vicki Bitsika, Christopher Sharpley, Linda Agnew, Nicholas Andronicos

Vicki Bitsika

Because social communication difficulties and stress are common in children with an ASD, and because it has been hypothesised that the two are related, the association between these two variables was investigated in a sample of 90 boys with an ASD and who were aged between 6 years and 12 years of age. The Social Responsiveness Scale (SRS) was completed by the parents of these boys about their sons, plus salivary cortisol samples were collected from the boys. Results indicated that only one aspect of the boys' SRS was significantly correlated with cortisol—Social Motivation (SM). Factor analyses revealed two discrete …

Effects Of Early-Adolescent, Mid-Adolescent, Or Adult Stress On Morphine Conditioned Place Preference, Chloe Shields

Senior Theses

In light of previous work demonstrating that stress can increase subjective drug reward in adult rats, the present study investigated the influence of stress on morphine conditioned place preference (CPP) in early-adolescent, mid-adolescent, and adult male Sprague-Dawley rats. Subjects in each age group were assigned to either a no stress condition or a stress condition in which they were exposed to an unpredictable eight-day schedule of elevated platform and synthetic fox odor stressors. Place conditioning then evaluated subjective morphine reward in all animals. Using a biased procedure, subjects were assigned to receive morphine on the initially non-preferred side of the …

Norepinephrine Involvement In The Intermittent Swim Stress-Induced Deficit In Spatial Learning And Memory, Emily Elgert

Honors Theses and Capstones

Learning and memory impairments are often caused by stress disorders including depression. The present study investigated the involvement of norepinephrine in the swim stress-induced deficits of spatial learning and memory. Exposure to intermittent swim stress (ISS) followed by learning and memory tests in the Morris water maze (MWM) were used to investigate this relationship. The ISS paradigm consists of intermittent exposure to cold water, producing stress responses in rats. Reboxetine, a norepinephrine selective reuptake inhibitor (NSRI), was employed to investigate whether this compound reverses the ISS-induced deficit. In other words, rats exposed to the ISS, were hypothesized to experience impaired …

Autonomic And Behavioral Reactivity To An Acute Laboratory Stressor, Jeremy C. Peres

University of New Orleans Theses and Dissertations

Stress has been widely shown to directly influence people’s emotional and behavioral processing as well as their underlying biological systems. This project examined physiological and behavioral responses as indicators of stress and coping in the context of a psychosocial stressor in a controlled laboratory setting. We examined the association between indicators of behavioral coping and underlying physiological reactivity within participants while experiencing stress. Participants included 68 emerging adults. Physiological measures include autonomic biomarkers (e.g., heart-rate, skin conductance) at rest and during the stressor while behavioral indicators that were coded include acute verbal and non-verbal actions exhibited by participants during the …

The Effects Of Adolescent Binge Drinking On Corticotropin-Releasing Factor Cells In The Amygdala And Social Predictors Of Alcohol Intake In Male And Female Rats, Chrisanthi Karanikas

Masters Theses 1911 - February 2014

Alcohol is one of the most common drugs of choice among adolescents. Normally, the method of consumption is drinking large quantities of alcohol in short periods of time, otherwise known as “binge drinking.” Corticotropin releasing factor (CRF) stress peptide producing cells in central nucleus of the amygdala (CeA) has been implicated in behavioral responses to stress and addiction. The goals of this thesis were to determine the effects of voluntary binge drinking in adolescence and vapor-induced alcohol dependence in adulthood on CRF cells in the CeA. These studies were done using an operant model of voluntary binge drinking in rodents …

The Impact Of A Naturalistic Stressor On Spontaneous Alternation Behavior: A New Animal Model Of Ocd, Christina Finch

Behavioral Neuroscience Honors Papers

Over the past few decades, various animal models of obsessive compulsive disorder (OCD) have been developed. Similarly, various stressors have been used throughout animal research. The Spontaneous Alternation Behavioral (SAB) model is a well-established model of OCD while 2,5-dihydro-2,4,5-trimethylthiazoline (TMT) has recently become a popular naturalistic stressor. This study linked the two together, thus modeling the effect of stress on OCD behaviors. After living in an enriched or standard environment for 3 weeks, male Sprague-Dawley rats were exposed to either TMT or no odor, and then were examined in the SAB task. Unlike what was hypothesized, the enriched environment proved …