Digital Commons Network^™

The Effects Of Home Virtual Reality (Vr) Firearms Systems On Self-Efficacy, Gun Attitude, And Stress, Raffi R. Stambultsyan

Doctoral Dissertations and Projects

Advanced virtual reality (VR) firearms training systems have demonstrated benefits for military and law enforcement personnel; however, limited research has examined the psychological effects of commercially available home-based VR firearms systems. The purpose of this quantitative quasi-experimental study was to investigate the immediate effects of the GAIM and AceXR home VR dry-fire training systems on general self-efficacy, leadership self-efficacy, perceived stress, and gun attitude among firearms-trained military and law enforcement veterans. A total of 128 participants completed validated pretest and posttest measures following participation in a VR training session using either the GAIM or AceXR platform. A one-way multivariate analysis …

A Review Of Video Game Effects And Uses, David Corso

Caravel Undergraduate Research Journal

Video games are versatile in their form and function. Whether they’re training doctors or offsetting Alzheimer’s disease, video games can exercise both mental and physical features, train specific skills for a number of jobs, educate players about events and phenomenon in our world, research and understand natural human processes, and they can be designed for a number of other purposes. Multiple studies have demonstrated the effects of video games on physiological and cognitive levels—positive, negative, and everything in between. This paper identifies various physical and psychological effects that video games produce, and it suggests ways in which video games can …

Impostor Thoughts At Work: Examining The Relationship Between Impostor Thoughts, Employee Well-Being, And Coworker Support, Nikitha Sara Mohan

Theses, Dissertations and Culminating Projects

Most individuals experience impostor thoughts; however, limited construct clarity has hindered efforts to effectively examine their relationship with employee outcomes (Gullifor et al., 2021). To address this limitation, the present study adopts a sociocognitive perspective, conceptualizing impostor thoughts as beliefs that others overestimate one’s competence at work (Clance & Imes, 1978; Tewfik, 2022). Specifically, this research investigates workplace impostor thoughts and their associations with indicators of employee well-being, including job-related negative affect, burnout, physical symptoms, and perceived self-competence. Additionally, the study examines coworker support as a potential moderating factor in these relationships. A mixed-methods approach was employed. Quantitative data were …

Hemispheric Processing Of Words And Unfamiliar Symbol Strings, Karoline Curlo

Celebrating Scholarship and Creativity Day (2018-)

This study investigates the role of each cerebral hemisphere in processing word forms to better understand how the brain decodes letter strings. Participants completed a same-different judgment task for four-character word and symbol (Orkhon) pairs presented unilaterally. On different trials, a single character was substituted at the first, second, third, or fourth position in the string. Results showed a sameness advantage in the left hemisphere (LH) and a difference advantage in the right hemisphere (RH) - effects only observed with word stimuli. Performance was best when the substituted character occurred at the beginning or end of words and symbols, rather …

Unleashing Stress: The Effects Of Training, Bond Strength, And Stress On Pet Dog Behaviors And Health, London Maria Wolff

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Humans and dogs have formed a unique ability to communicate with each other through evolutionary and developmental mechanisms. This increased communication serves to form dynamic interspecies bonds by facilitating learning and training over the lifetime of a dog. However, it is not known what factors permit the unique capacity of dogs to form bonds with, and learn from, their human companions. Odor is a notable candidate for interspecies communication about emotional states, with studies showing that both dogs and humans use odor information to detect human emotions (Calvi et al., 2020). Possibly, this may include detection of both acute and …

Music To Move You: Comparing Effects Of Music Genre On Subjective Performance Of Football Players In A Practice Setting, Devin Deturk

PCOM Psychology Dissertations

Optimizing athletic performance has increasingly extended beyond conditioning to include psychological, health-related, and environmental interventions aimed at enhancing peak mental and physical fitness. However, advanced training mechanisms targeting these factors may not be readily available to all programs, necessitating cost-effective, accessible, and ethically sound adjuncts. Thus, music emerges as a potential solution that remains underutilized in applied sport settings but may be leveraged to address pervasive challenges such as fear of failure, burnout, and over-professionalization. The present dissertation investigated the effects of music in a practice setting, with particular emphasis on its capacity to enhance subjective performance, motivation, and positive …

Metabolic Mind: A Critical Literature Review On The Influence Of Mindset On Metabolic Health, Jordan Daniel M.A., M.S.

Selected Full Text Dissertations, 2011-

Evidence has demonstrated that psychological processes can influence metabolic functions, which are essential to overall health, as impaired energy metabolism can compromise physiological systems (Bobba-Alves N et al., 2022). Metabolic health is defined as a state of well-being characterized by optimal levels of blood glucose, lipids, cholesterol, blood pressure, and adiposity and is the absence of metabolic dysfunction, which encompasses but is not limited to cardiovascular diseases, type 2 diabetes mellitus, obesity, and metabolic syndrome. A powerful psychological construct that has demonstrated its influence on health is a mindset. Defined as core beliefs or assumptions about oneself and the world, …

Daily Rhythms In Psychosocial Stress, Sleep, And Mood: A Multimethod Approach To Transdiagnostic Psychopathology Risk And Intervention, Gabriel Gilmore

Theses and Dissertations--Psychology

Rhythms are central to nearly every core physiological and psychological process and have profound influences on overall health and well-being, particularly in the context of mood disorders. This dissertation emphasizes a rhythm-centered framework for understanding transdiagnostic psychopathology, proposing that the temporal organization of psychosocial stress, sleep, and mood provides crucial information for the development and treatment of mood disorder symptomology. Current literature relies primarily on mean symptom levels, overlooking day-to-day patterns in psychosocial experiences. To address this key methodological gap, three studies are examined. Study 1 develops and validates the Psychosocial Stress Regularity Measure (PSRM), a brief single-item measure of …

Investigating The Practice Of A Somatic, Mindful Christian Prayer And Breathing Practice On Public Speaking Anxiety, Robyn L. Middleton

Doctoral Dissertations and Projects

This randomized controlled trial investigated the effectiveness of a mindful Christian prayer practice (The Jesus Prayer) combined with slow diaphragmatic breathing on communication anxiety. Participants (N = 80) included university students and members of the general public aged 18-60 who experience public speaking anxiety. Measurements included self-reported speech anxiety and heart rate variability (assessed via the WellHero app). Repeated measures ANOVAs revealed that the mindful prayer practice had no significant effect on participants' self-reported speech anxiety or RMSSD heart rate variability. A statistical trend of lower Baevsky’s Stress Index (another variable WellHero provided) was observed in the intervention group. This …

Fd&C Red Dye No. 40 (Allura Red) Effects On Non-Human Animal Testing: A Systematic Review, Vilate Winfrey

Honors Theses

Artificial food dye is added to foods to enhance their color and appearance for consumers. This systematic review aims to review the literature on Red Dye No. 40 and its effects on non-human animals. Studies were included if (a) exposure to Red Dye No. 40 was the independent variable, (b) nonhuman animals were the subjects, and (c) at least one behavioral, neurological, or physiological dependent variable was reported. An article search was conducted with Scopus Elsevier. An abstract review was conducted to determine whether the articles met all inclusion criteria. The author conducted a multi-stage application of inclusion criteria to …

Food For Thought: The Impact Of The Gut-Brain Axis On Mental Health, Emily S. Miiller

Honors Thesis

Research regarding the role of the human microbiome has grown over the years as professionals develop a better understanding of the gut-brain axis. New studies and expanding knowledge on the relationship between the nervous system and gut microbiome promote a deeper understanding of the impact of diet on mental health. Diet plays a crucial role in maintaining a healthy balance between the gut and the brain. Incorporating nutritional modulators, such as probiotics, prebiotics, and vitamins, is crucial for supporting the gut-brain axis by influencing neurotransmitter production, managing inflammation, and promoting the growth of beneficial gut bacteria. On the other hand, …

"Dental Health For Mental Wealth": A Comprehensive Analysis Of The Underexplored Impact Of Oral Health And Behaviors On Neurobiology And Psychological Well-Being, Brooke C. Beck

Mahurin Honors College Capstone Experience/Thesis Projects

This thesis explores the link between oral health and psychological state, specifically, the effect of oral health on psychological state and how appropriate oral health impacts this relationship. A review of the literature was conducted and studies interpreted within the scope of oral health’s impact on psychological health and detailing some of the pathways proposed for such a link. The literature search was limited to the English language from well-known databases mainly from 2015 to 2025. A few outliers are present to include foundational information.

The effects of oral disease and oral self-care behaviors were dissected through a biochemical perspective, …

Grounded In Motion: Finding Calm Through Daily Stretching, Everett H. Tai

ENGS 15.11: Design and Education

This lesson targets undergraduate students, reframing stretching as an essential, evidence-based habit for long-term wellness and stress management. The lesson's primary goal is to empower students to confidently design and consistently apply a personalized routine that protects their mobility and independence. Students will master the core science, understanding that dynamic stretching may augment performance pre-exercise, while shorter static stretches can be performed without compromising muscle performance, and post-exercise stretching can reduce muscle pain perception. This lesson emphasizes proper execution, requiring students to warm up first with 5 to 10 minutes of light activity with focus on technique. This practical knowledge …

Neurobiological Variables Mediating The Relationship Between Breast Cancer And Sleep Disruption, Brittany Domenique Elliott

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neurobiological Variables Mediating the Relationship between

Breast Cancer and Sleep Disruption

Brittany D. Elliott, MS

Breast cancer is the most commonly diagnosed malignancy in women, with more than two million new cases diagnosed world-wide each year. Improvements in screening technology and diagnostics have increased survival rates, but cancer-associated sleep disruptions persist for the majority of breast cancer survivors well beyond the treatment period. In addition to reducing quality of life, reduced sleep quality is associated with greater incidences of affective dysfunction, reduced treatment efficiency, aggressive cancer progression, increased symptom severity, and increased mortality by all causes. Thus, identifying the variables …

Exploring Chronic Stress, Avoidance Coping, And Diurnal Cortisol In Head And Neck Cancer Patients: A Pilot Study Of Best Practices In Diurnal Cortisol Sampling., Brooks R. Harbison

Electronic Theses and Dissertations

Cancer patients are vulnerable to the deleterious effects of chronic stress, especially those prone to avoidance coping. Research in the general population has linked these effects to aberrant diurnal cortisol. However, the current literature on cancer patients has shown inconsistent results in associations between chronic stress, avoidance coping, and diurnal cortisol, possibly due to inconsistent cortisol sampling practices. This pilot study of head and neck cancer patients aimed to address this gap in the literature by implementing best cortisol sampling practices to investigate the links among chronic stress, avoidance coping, and diurnal cortisol slope, average bedtime cortisol, and average wake …

Derogatory, Racist, And Discriminatory Speech (Drds) In Video Gaming, Sean Woodford

Dissertations

Video games have been examined for their effects on cognition, learning, health, and physiological arousal, yet research on social dynamics within video gaming is limited. Studies have documented the presence of derogation, racism, and discrimination in this anonymous medium. However, gamers‟ firsthand experiences are typically examined qualitatively. Thus, this study aimed to establish a quantitative baseline for the frequency of derogatory, racist, and discriminatory speech (DRDS) in gaming. DRDS frequency, sexual harassment, and hate speech measures were administered to 150 individuals from online forums and social media groups. Descriptive and inferential analyses were used to gauge which factors affected DRDS …

Embodied Co-Regulation: A Neuroregulatory-Informed Dance/Movement Therapy Transition Intervention Method For Arousal Regulation For Adolescents In A Partial Hospitalization Program, Anamaria Guzman

Expressive Therapies Capstone Theses

This thesis introduces a novel Dance/Movement Therapy (DMT) approach, focusing on nervous system arousal regulation during transitions between therapy groups. The core of the method involves a brief 5-minute exercise designed to modulate arousal levels, encompassing alertness and energy, aiming to establish a baseline homeostasis. Rooted in Polyvagal Theory and Developmental Neurobiology, the approach assumes the co-regulation of nervous systems within a group therapeutic setting. Two primary outcomes are self-assessed: 1) somatic experiences documented through narratives and 2) nervous system biodata measured using the Flowtime headband monitoring of brainwaves, heart rate, and other biomarkers. Results indicated that all six sessions …

The Experiences Of Post Secondary School Completion Of Academically Talented African American Teenaged Parents, Adrienne Denise Butler

Walden Dissertations and Doctoral Studies

Teen pregnancy and parenting are cited as the reasons 1 in 3 teens drop out of high school. For African American teenagers, the drop-out rate is slightly higher, with 38% of teen parents leaving high school without a diploma. Living in impoverished communities with substandard educational facilities and opportunities, academically talented African American teen mothers must make choices about education and parenting. Pregnant teens must consider their future and decide whether to keep their baby, to complete high school or dropout, and if to attend a postsecondary institute. The problem is the low college attendance and graduation rate for parenting …

The Impact Of The Gut-Brain Axis On Alzheimer’S Disease, Elissa Wakim

Best Integrated Writing

Elissa’s review for the Graduate Biomedical Review focuses on the links between the gastrointestinal tract and the brain; the gut-brain axis and the development of Alzheimer’s disease. As a student in the Microbiology and Immunology Masters Program Elissa was particularly interested in the gut microbiota and their connection to neurodegenerative disease. She tidily reviewed the literature and wrote a fascinating and compelling piece of work.

Empowering Children With Special Needs (Cwsn) In Computer Science: An Interactive Hand Gestures Approach To Number Conversion Teaching, Renjith P.R., Jeeva Jose

Journal of Educational Technology Development and Exchange (JETDE)

It is essential for teachers to effectively address the diverse needs of students within the classroom environment, encompassing variations in IQ, communication skills, problem-solving abilities, and mathematical proficiency. Ensuring the inclusion of CwSN (Children with Special Needs) is imperative to prevent social division in the classroom. While the department offers accommodations such as scribes, interpreters, or extra time for examinations, these measures may not fully address the specific needs of CwSN. This study explores the efficacy of employing hand gestures as a teaching tool for CwSN in computer science, particularly in the realm of number conversions. A machine learning-based tool …

Biopsychosocial Resilience Through A Complex Adaptive Systems Lens: A Narrative Review Of Nonlinear Modeling Approaches, Adam W. Kiefer, David Pincus

Psychology Faculty Articles and Research

Human resilience is often considered as static traits using a reductionist approach. More recent work has demonstrated it to be a dynamic and emergent property of complex systems. This narrative review explores human resilience through a self-organizing framework with a specific emphasis on the application of nonlinear modeling approaches. Four classes of approaches are examined: univariate dynamics, bivariate coupling, topological modeling, and network modeling. Univariate dynamics capture the temporal structure and flexibility within a single time series, while bivariate coupling approaches quantify the interaction dynamics and coordination between two time series. Topological modeling identifies bifurcations and attractor dynamics as signals …

Multiancestry Analysis Of The Hla Locus In Alzheimer’S And Parkinson’S Diseases Uncovers A Shared Adaptive Immune Response Mediated By Hla-Drb1*04 Subtypes, Yann Le Guen, Guo Luo, Aditya Ambati, Vincent Damotte, Iris Jansen, Eric Yu, Aude Nicolas, Itziar De Rojas, Thiago Peixoto Leal, Akinori Miyashita, Céline Bellenguez, Michelle Mulan Lian, Kayenat Parveen, Takashi Morizono, Hyeonseul Park, Benjamin Grenier-Boley, Tatsuhiko Naito, Fahri Küçükali, Seth D Talyansky, Selina Maria Yogeshwar, Vicente Sempere, Wataru Satake, Victoria Alvarez, Beatrice Arosio, Michael E Belloy, Luisa Benussi, Anne Boland, Barbara Borroni, María J Bullido, Paolo Caffarra, Jordi Clarimon, Antonio Daniele, Daniel Darling, Stéphanie Debette, Jean-François Deleuze, Martin Dichgans, Carole Dufouil, Emmanuel During, Emrah Düzel, Daniela Galimberti, Guillermo Garcia-Ribas, José María García-Alberca, Pablo García-González, Vilmantas Giedraitis, Oliver Goldhardt, Caroline Graff, Edna Grünblatt, Olivier Hanon, Lucrezia Hausner, Stefanie Heilmann-Heimbach, Henne Holstege, Jakub Hort, Yoo Jin Jung, Deckert Jürgen, Silke Kern, Teemu Kuulasmaa, Kun Ho Lee, Ling Lin, Carlo Masullo, Patrizia Mecocci, Shima Mehrabian, Alexandre De Mendonça, Mercè Boada, Pablo Mir, Susanne Moebus, Fermin Moreno, Benedetta Nacmias, Gael Nicolas, Shumpei Niida, Børge G Nordestgaard, Goran Papenberg, Janne Papma, Lucilla Parnetti, Florence Pasquier, Pau Pastor, Oliver Peters, Yolande A L Pijnenburg, Gerard Piñol-Ripoll, Julius Popp, Laura Molina Porcel, Raquel Puerta, Jordi Pérez-Tur, Innocenzo Rainero, Inez Ramakers, Luis M Real, Steffi Riedel-Heller, Eloy Rodriguez-Rodriguez, Owen A Ross, Luis Jose Royo, Dan Rujescu, Nikolaos Scarmeas, Philip Scheltens, Norbert Scherbaum, Anja Schneider, Davide Seripa, Ingmar Skoog, Vincenzo Solfrizzi, Gianfranco Spalletta, Alessio Squassina, John Van Swieten, Raquel Sánchez-Valle, Eng-King Tan, Thomas Tegos, Charlotte Teunissen, Jesper Qvist Thomassen, Lucio Tremolizzo, Martin Vyhnalek, Frans Verhey, Margda Waern, Jens Wiltfang, Jing Zhang, Eadb, Gr@Ace Study Group, Degesco Consortium, Demgene, Eadi, Gerad, Asian Parkinson’S Disease Genetics Consortium, Henrik Zetterberg, Kaj Blennow, Zihuai He, Julie Williams, Philippe Amouyel, Frank Jessen, Patrick G Kehoe, Ole A Andreassen, Cornelia Van Duin, Magda Tsolaki, Pascual Sánchez-Juan, Ruth Frikke-Schmidt, Kristel Sleegers, Tatsushi Toda, Anna Zettergren, Martin Ingelsson, Yukinori Okada, Giacomina Rossi, Mikko Hiltunen, Jungsoo Gim, Kouichi Ozaki, Rebecca Sims, Jia Nee Foo, Wiesje Van Der Flier, Takeshi Ikeuchi, Alfredo Ramirez, Ignacio Mata, Agustín Ruiz, Ziv Gan-Or, Jean-Charles Lambert, Michael D Greicius, Emmanuel Mignot

Faculty, Staff and Students Publications

Across multiancestry groups, we analyzed Human Leukocyte Antigen (HLA) associations in over 176,000 individuals with Parkinson’s disease (PD) and Alzheimer’s disease (AD) versus controls. We demonstrate that the two diseases share the same protective association at the HLA locus. HLA-specific fine-mapping showed that hierarchical protective effects of HLA-DRB1*04 subtypes best accounted for the association, strongest with HLA-DRB1*04:04 and HLA-DRB1*04:07, and intermediary with HLA-DRB1*04:01 and HLA-DRB1*04:03. The same signal was associated with decreased neurofibrillary tangles in postmortem brains and was associated with reduced tau levels in cerebrospinal fluid and to a lower extent with increased Aβ42. …

Utilizing New Technologies To Measure Therapy Effectiveness For Mental And Physical Health, Jonathan Ossie

Dissertations

Mental health is quickly becoming a major policy concern, with recent data reporting increasing and disproportionately worse mental health outcomes, including anxiety, depression, increased substance abuse, and elevated suicidal ideation. One specific population that is especially high risk for these issues is the military community because military conflict, deployment stressors, and combat exposure contribute to the risk of mental health problems.

Although several pharmacological approaches have been employed to combat this epidemic, their efficacy is mixed at best, which has led to novel nonpharmacological approaches. One such approach is Operation Surf, a nonprofit that provides nature-based programs advocating the restorative …

Small Unmanned Aircraft Systems: Operator Workload And Situation Awareness Utilizing First Person View Techniques, Ross Lucas Stephenson Jr

Doctoral Dissertations and Master's Theses

The small, unmanned aircraft systems (sUAS) sector within the aviation industry is experiencing unprecedented growth. However, the regulatory guidance for the safe integration of sUAS into the National Airspace System (NAS) has not kept pace with this technological growth within the market. Current regulatory limitations of line-of-sight operations may have an impact on the establishment of an equivalent level of safety for sUAS operations as maintained by manned aircraft. The focal point of the discussion of line-of-sight operations has been the ability of the sUAS pilot to see and avoid all obstacles and other aircraft in a safe and timely …

Lived Experiences Of Job-Hopping Millennials During The Covid-19 Pandemic, Dottie Dancy

Walden Dissertations and Doctoral Studies

Millennials, also known as “the job-hopping generation,” are on the brink of becoming the largest generation in the workforce by 2025. In March 2020, a global pandemic was declared due to the spread of the virus known as COVID-19, which led to more than 5.3 million deaths globally. Prior research has been conducted concerning the job-hopping tendencies of Millennials, but previous studies have not incorporated the life-changing event of the global pandemic and how it may have changed the beliefs and attitudes of the Millennial generation. The purpose of this qualitative study was to explore the voluntary job-hopping beliefs and …

Introduction To Psychology, Gail Hayes

Open Educational Resources

Introduction to Psychology is a modified version of Psychology 2e - OpenStax.

Adult Learners With Learning Disabilities’ Motivation To Succeed In Higher Education Online Learning During Covid19, Sara Michelle Rodriguez

Walden Dissertations and Doctoral Studies

Many students had to transition to online learning due to the COVID-19 pandemic while other students were already enrolled in online education. Online study may hold additional struggles for students with learning disabilities. The problem addressed in this qualitative, phenomenological study was the motivating factors of online higher education students who have a learning disability during the COVID-19 pandemic. The theoretical foundation was Maslow’s hierarchy of needs. Data were gathered through 10 semistructured interviews and then analyzed through the thematic analysis yielding five themes: (a) lack of professional support, (b) resources, (c) support system, (d) consistent motivation, and (e) low …

Lived Experiences Of Job-Hopping Millennials During The Covid-19 Pandemic, Dottie Dancy

Walden Dissertations and Doctoral Studies

Millennials, also known as “the job-hopping generation,” are on the brink of becoming the largest generation in the workforce by 2025. In March 2020, a global pandemic was declared due to the spread of the virus known as COVID-19, which led to more than 5.3 million deaths globally. Prior research has been conducted concerning the job-hopping tendencies of Millennials, but previous studies have not incorporated the life-changing event of the global pandemic and how it may have changed the beliefs and attitudes of the Millennial generation. The purpose of this qualitative study was to explore the voluntary job-hopping beliefs and …

Adult Learners With Learning Disabilities’ Motivation To Succeed In Higher Education Online Learning During Covid19, Sara Michelle Rodriguez

Walden Dissertations and Doctoral Studies

Many students had to transition to online learning due to the COVID-19 pandemic while other students were already enrolled in online education. Online study may hold additional struggles for students with learning disabilities. The problem addressed in this qualitative, phenomenological study was the motivating factors of online higher education students who have a learning disability during the COVID-19 pandemic. The theoretical foundation was Maslow’s hierarchy of needs. Data were gathered through 10 semistructured interviews and then analyzed through the thematic analysis yielding five themes: (a) lack of professional support, (b) resources, (c) support system, (d) consistent motivation, and (e) low …

Effects Of Music-Activity Intervention On Stress And Social Skills In Children With Autism Spectrum Disorder: A Multiple Baseline Study, Phollawat Rangkhaphuti

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research investigated the effects of music-activity intervention on stress reduction and the enhancement of social skills in autistic children. Utilizing a multiple baseline research design to systematically assess the intervention's impact, the investigation focused on three autistic children aged 7-9 years who exhibited no impairments in vision, hearing, mobility, or endocrine gland disorders. These participants scored in the mild to moderate range on the Autistic Treatment Evaluation Checklist (ATEC-Thai version). Each child participated in 30-minute musical activity sessions, totaling 10 sessions. Salivary cortisol levels served as indicators of stress, while social skills were evaluated using the parent-report Social Skills …