Digital Commons Network^™

Memory And Experiential Lab, Yufan Xu

Masters Theses

In the tapestry of our lives, there exist moments and places that we can never revisit, scenes etched into our memories that fade with the passage of time. These experiences and memories are treasures, provide us with an anchor to our past. Unfortunately, many of these moments are like fireflies in the night, here one moment and gone the next. Yet, they remain invaluable, forever etched in our hearts and minds. I wonder if it is possible to trigger cherished past experiences and memories in our daily lives, allowing individuals to re-experience similar moments, thereby nourishing the spiritual world. Therefore, …

Dietary Probiotic Supplement Attenuates Methamphetamine-Induced Conditioned Place Preference In Female Sprague-Dawley Rats, Kristen Powell

Masters Theses

Substance use disorders (SUD) represent a global public health crisis with limited effective treatment options. Recent findings implicate the gut microbiome and gut/brain axis in the pathophysiology of SUDs. Several preclinical studies have established that psychostimulants alter gut microbiome composition, but no published studies have assessed behavioral effects of dietary probiotic supplements on drug-induced behavioral changes. This study utilized rodent conditioned place preference (CPP) as a behavioral index of conditioned drug reward to determine if a dietary probiotic supplement alters the behavioral effects of (+)-methamphetamine (METH). Fifty-four adult female Sprague-Dawley rats were randomly assigned to receive either a standard rodent …

Cognitive And Neuroscientific Perspectives Of Healthy Ageing, Jon B. Prince, Helen L. Davis, Jane Tan, Katrina Muller-Townsend, Shaun Markovic, David M. G. Lewis, Brianne Hastie, Matthew B. Thompson, Peter D. Drummond, Hakuei Fujiyama, Hamid R. Sohrabi

Research outputs 2022 to 2026

With dementia incidence projected to escalate significantly within the next 25 years, the United Nations declared 2021–2030 the Decade of Healthy Ageing, emphasising cognition as a crucial element. As a leading discipline in cognition and ageing research, psychology is well-equipped to offer insights for translational research, clinical practice, and policy-making. In this comprehensive review, we discuss the current state of knowledge on age-related changes in cognition and psychological health. We discuss cognitive changes during ageing, including (a) heterogeneity in the rate, trajectory, and characteristics of decline experienced by older adults, (b) the role of cognitive reserve in age-related cognitive decline, …

Comprehensive Examination Of The Effect Of A Randomized Controlled Brief Mindfulness-Based Intervention On Autonomic Nervous System Functioning, Li Shen Chong

Legacy Theses & Dissertations (2009 - 2024)

Brief mindfulness-based interventions are comparable to traditional mindfulness-based interventions in alleviating stress and improving well-being. To explore the underlying biological mechanisms of these practices, researchers have been exploring the effects of mindfulness-based interventions through the autonomic nervous system (ANS), a major bodily stress response system. Nevertheless, most of these studies relied on one stress response system or a specific biomarker. This study aims to comprehensively examine the effectiveness of two sessions of brief mindfulness-based interventions on ANS functioning. Participants were assigned to the brief mindfulness intervention condition (n = 44) or control condition (n = 47). Participants’ physiological data, including …

Drug Use And Harm Reduction: Community Readiness As Pathway To Well-Being And Reintegration, Lauretta Ekanem Omale

Dissertations

Drug abuse negatively impacts the life and well-being of those who use drugs; this harm often extends to their loved ones, communities, and society. One presumptive set of psychological explanations for drug abuse is an addictive personality, a psychological susceptibility resulting from challenging family relationships, inadequate reinforcement, the absence of healthy role models, conflicting parental expectations, and a lack of love and respect. Harm reduction is a public health approach that focuses on minimizing the harmful effects of drugs and reducing judgment. It aims to meet people where they are in life and provide judgment-free, empathetic, supportive, and needed medical …

Determining Factors For Improved Uptake Of Harm Reduction Services In The United States: A Study Of Inclusive, Culturally Sensitive Messaging, Lauretta Ekanem Omale

Dissertations

Harm reduction refers to public health policies and programs aimed at decreasing the adverse consequences associated with drug use. While harm reduction services (e.g., syringe exchange programs) can mitigate health risks, marginalized groups face barriers to service access and utilization, partially due to ineffective messaging approaches that fail to align with cultural values and experiences. A one-size-fits-all approach to messaging can negatively impact service utilization, health outcomes, and health disparities. Ineffective communication can lead to poor adherence to treatment, poorer health outcomes, and increased adverse events.

Culturally insensitive communication contributes to stigma, mistrust, and lack of perceived relevance, discouraging service …

An Exploration Of Contributors To Intergenerational Trauma Transmission In American Families: Parental Life Experiences And Parenting Styles., Shantrell P. Sutton-Mckenzie

Dissertations

Preexisting research on intergenerational trauma transmission primarily addresses biological and behavioral routes of transmission, leaving little room for systemic influences. This research reviews preexisting biological and behavioral contributors and explores systemic contributors to intergenerational trauma transmission in American families as it relates to post-traumatic growth, parental centrality distress, and parenting styles. It was that post-traumatic growth and parental centrality of distress (comprised of ACES, centrality of events, and access to community resources) and PTG predict parenting styles. The research hypothesis was partially supported. It was found (1) Post-traumatic growth, ACEs, and perceived access to community resources while parenting added significantly …

Neuropsychological Intra-Individual Variability In Traumatic Brain Injury: Clinical Utility, Classification, And Associations With Outcomes, Jeremy A. Feiger

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

Traumatic brain injury (TBI) survivors experience a range of sequelae including neurobiological brain changes, cognitive impairment, psychological difficulties, and functional changes. Neuropsychological assessment after injury is used to characterize current strengths and weaknesses to inform prognosis and interventions. There is currently no reliable and consistent method of assessing and classifying injuries in the post-acute and chronic phases of moderate to severe TBI (msTBI) that is associated with long term psychosocial outcomes. This study aimed to combine the use of within-person variability on neuropsychological test batteries and in cognitive response latency, known as intra-individual variability (IIV), with a novel cognitive phenotyping …

A Mixed Method Examination Of Bipositivity As A Factor Protecting Cis, Trans, And Gender Expansive Plurisexual Women Against Harmful Sexual Violence Outcomes, Allison E. Cipriano

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

Plurisexual women are more likely to experience sexual violence, post-traumatic stress (PTS), and alcohol use problems compared to women with single gender attraction. Disproportionately high rates of sexual violence may partially explain the prevalence of PTS and alcohol problems experienced by plurisexual women. Yet, research on sexual violence, PTS, and alcohol use problems have rarely specifically investigated these phenomena among plurisexual women. Researchers have identified a positive association between binegative experiences and risk of sexual violence among plurisexual women, suggesting that sexuality-based experiences may be connected to sexual violence victimization for this population. While identifying factors predicting risk of sexual …

The Mental Health Experience Of Transgender And Gender Diverse Colombians: Que La Diversidad No Cueste La Vida, María Natalia Acosta Canchila

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

Experiences of TGD people in various countries reflect difficulties accessing mental health services and significant mental health needs. In Colombia, experiences in broader healthcare systems suggest various barriers to care that include experiences of discrimination. However, specific experiences in mental health services have not been thoroughly examined. The current study aimed to understand the experiences, perceptions, and needs of TGD people in Colombia in mental health systems. Qualitative data was collected via 40 semi-structured interviews with TGD people in Colombia, data was analyzed via reflexive thematic analysis. Findings suggests great mental health needs related to needing support in the process …

Relational Changes In A Study Of Youth Diagnosed With Cancer, Emily C. Larsen Avnet

Doctor of Psychology (PsyD)

This dissertation explores the relational experiences of youth with cancer within a metropolitan hospital. Through archival interviews with 10 participants, the study identifies seven themes that encompass the youths’ experiences of how a life-limiting illness impacts their relationships and the role it plays. The findings reflect the complexity of a life-limiting illness, particularly during the adolescence and/or pediatric phases of life. The study highlights the importance of relationships, perceived support, and the impact of a cancer diagnosis in youth’s lives and the lives of their loved ones. The results can inform caregivers, loved ones, medical teams, and mental health care …

Subjective Socioeconomic Status Moderates How Resting Heart Rate Variability Predicts Pain Response, Jacinth Jia Xin Tan, Chin Hong Tan, Michael W. Kraus

Research Collection School of Social Sciences

Higher resting heart rate variability (HRV)—an index of more flexible response to environmental stressors, including noxious stimuli—has been linked to reduced perception of experimentally induced pain. However, as stress responses are adapted to one’s chronic environments, we propose that chronic exposure to threats captured by one’s subjective socioeconomic status (SSS) may shape different adaptations that produce distinct pain responses linked to higher resting HRV. Specifically, lower SSS individuals with more threat exposures may prioritize threat detection by upregulating sensitivity to stressors, such as acute pain. Therefore, higher HRV would predict greater perceived acute pain among lower SSS individuals. In contrast, …

Measurement Invariance Of The Pandemic Anxiety Inventory In Different Demographic Groups, Irvin Sam Schonfeld, Tasmyn Prytherch, Mark Cropley, Jay Verkuilen, Renzo Bianchi

Publications and Research

Background The Pandemic Anxiety Inventory (PAI) was developed in the context of the COVID-19 pandemic. Its content allows it to assess anxiety in connection to any pandemic. Previous research has demonstrated the instrument’s reliability and validity. An important question for clinicians and researchers, however, remains open: Does the PAI have similar meaning for members of different demographic groups? The finding of measurement invariance would allow clinicians and researchers to comparatively assess pandemic-related anxiety across demographic groups, including favored and disfavored groups.

Methods We conducted a multi-group confirmatory factor analysis to assess the measurement invariance of the PAI using data obtained …

Protocol: Factors Influencing The Implementation Of Non-Pharmacological Interventions For Behaviours And Psychological Symptoms Of Dementia In Residential Aged Care Homes: A Systematic Review And Qualitative Evidence Synthesis, Hunduma D. Ayeno, Gizat M. M. Kassie, Mustafa Atee, Tuan Nguyen

Research outputs 2022 to 2026

This is a protocol for a Cochrane Review. The objectives are as follows. This paper aims to describe a protocol for a systematic review that will synthesise the qualitative evidence regarding factors influencing the implementation of non-pharmacological interventions (NPIs) for behavioural and psychological symptoms of dementia (BPSD) management in residential aged care homes (RACHs). The planned systematic review aims to answer the research question: ‘What are the factors influencing the implementation of NPIs in the management of BPSD at RACHs?’. Additionally, the planned systematic review also aims to generate recommendations to guide stakeholders (e.g., clinicians and aged care staff) and …

Risk And Protective Factors Of Self-Harm And Suicidality In Adolescents: An Umbrella Review With Meta-Analysis, Rebecca Richardson, Tanya Connell, Mandie Foster, Julie Blamires, Smita Keshoor, Chris Moir, Irene S. Zeng

Research outputs 2022 to 2026

Suicide remains the second most common cause of death in young people aged 10–24 years and is a growing concern globally. The literature reports a vast number of factors that can predispose an adolescent to suicidality at an individual, relational, community, or societal level. There is limited high-level research identifying and understanding these risk and protective factors of adolescent suicidality. The present study used an umbrella review and meta-analysis to synthesize evidence from the review literature in the past 20 years on risk and protective factors of self-harm and suicidality (behavior and ideation) in adolescents. The umbrella review included 33 …

Accessible Real-Time Eye-Gaze Tracking For Neurocognitive Health Assessments, A Multimodal Web-Based Approach, Daniel C. Tisdale

Master's Theses

We introduce a novel integration of real-time, predictive eye-gaze tracking models into a multimodal dialogue system tailored for remote health assessments. This system is designed to be highly accessible requiring only a conventional webcam for video input along with minimal cursor interaction and utilizes engaging gaze-based tasks that can be performed directly in a web browser. We have crafted dynamic subsystems that capture high-quality data efficiently and maintain quality through instances of user attrition and incomplete calls. Additionally, these subsystems are designed with the foresight to allow for future re-analysis using improved predictive models, as well as enable the creation …

Exploring How Factors Affecting Exercise Adherence May Inform Strategies To Increase Adherence In General And Depressed Populations: A Literature Review, Henry D. Link

University Honors Theses

Background: Exercise is associated with numerous physical and mental health benefits; however, many people struggle to exercise a sufficient amount and thus do not reap the benefits. Exercise is recognized as an effective treatment for depression with few risks. Professionals must understand the factors affecting exercise adherence to assist individuals of different backgrounds with adhering to exercise over the long term and to avoid common pitfalls that could hinder an individual’s progress.

Objective: This literature review aimed to identify factors affecting exercise adherence and to explore how those factors could inform strategies to increase exercise adherence among depressed …

At The Intersection Of Domestic Violence And Mass Shootings: A Qualitative Analysis Of The Relationship Between Ipv And Gun Violence, Troy Bleau

University Honors Theses

The intersectional study of domestic violence and mass shootings has only recently been the subject of inquiry within the psychology field. Within the past ten years research has been developed to examine the relationship between these two epidemics. What authors have found is that DV does play a role in shooting perpetration. This study aimed to identify domestic violence as a risk factor to predict, and subsequently intervene before future instances of shootings. 112 shootings were analyzed between the years of 2020 and 2023--they were then categorized as DV-related, non-DV related, and/or History of DV. The tested hypothesis was that …

Brief Treatment For Ptsd: Promoting Trauma Recovery With A Five-Session Cognitive Processing Therapy Protocol, Sanela Kalakovic

Dissertations

Cognitive Processing Therapy (CPT) is a first-line treatment for trauma. CPT is traditionally administered over 12 sessions. This open clinical trial examined the feasibility and efficacy of a 5-session CPT protocol. The abbreviated protocol moves more quickly to the proposed therapeutic mechanism of action, cognitive restructuring, to alter unhelpful traumarelated thoughts and beliefs. The goal is to maintain efficacy while making therapy more efficient and thereby reducing barriers to trauma treatment. Using a repeated measures open clinical trial design (with embedded multiple baselines), 67 adults (M age = 43 years, 90% female, 79% White) with clinically significant post-traumatic stress disorder …

Immigration, Machismo, And Cultural Stigmatization: Causes Of Lack Of Mental Health Treatment Utilization Among Mexican Men In The U.S., Cynthia M. De La Torre-Lopez

University Honors Theses

Within academia, the topic of Latino men's mental health treatment utilization does not gather enough discussion. Even less, the area of Mexican men's mental health which although part of the Latino population, has specific stressors and implications. The following thesis will present a literature review method in order to answer the following research question, "How does machismo, stigma, and immigration affect the utilization of mental health treatment among Mexican men living in the U.S.?" These three predictors: machismo, stigma and immigration will be discussed in order to find an explanation as to why Mexican men are less likely to search …

Death With Dignity: Queer Representation In Deathcare Systems, Esmé Ringelstetter

University Honors Theses

This thesis examines the ways that elderly members of the LGBT community lack representation within deathcare systems. Currently, the LGBT community is vastly underrepresented in research relating to the dying process and deathcare. This lack of representation creates barriers for LGBT individuals at the end of their lives and creates difficult end-of-life experiences. I utilized previous research that studied how LGBT populations interact with and are treated by a variety of death care-related systems, including health systems, legal systems, and therapeutic systems. This research highlighted the need for the LGBT community to be better represented within both research relating to …

A Convergent Parallel Mixed Methods Examination Of The Impact Of Graduate Student Loan Balances On Overall Quality Of Life Among Clinical Psychologists With Psyd Degrees, Lekai James

Dissertations

Graduate student loan debt in psychology, particularly for those with Doctorate in Psychology (PsyD) degrees in clinical psychology, is highly problematic. Previous research has shown that student loan debt negatively impacts quality of life (QOL) by affecting subjective well-being (SWB) and life satisfaction (LS). This study used a convergent parallel mixed method approach, guided by bottom-up spillover theory and Maslow’s hierarchy of needs, to explore the relationship between QOL and total graduate student loan balances, as well as the effects of income and monthly student loan payments on QOL among PsyD graduates. Participants (N = 16) completed a survey with …

The Criminal Trajectory Of Paraphilic Noncontact Sexual Offenders: An Exploratory Study In An Incarcerated United States Sample, Emma F. Collie

Student Theses

Despite the misconception, many sexual offenses do not involve physical contact with a victim. Research indicates that exhibitionism, a noncontact offense, is the most reported sex crime. While some research has demonstrated the escalation from noncontact to contact offending, much of the data is outdated or used small samples. This study seeks to build upon the literature by examining archival records of 3,175 sex offenders incarcerated in the U.S. This study examined the number of offenders who progressed from noncontact to contact offenses and compared the demographic, crime, and risk characteristics of those convicted of noncontact offenses and those convicted …

Investigating The Effects Of Inclusive Environments On The Mental Health Of Queer Individuals : A Study With The Rose City Rollers, Ashton Lee

Anthós

Purpose: Portland, OR, is home to the world’s largest roller derby organization, the Rose City Rollers (RCR). Having the spotlight held upon the community, the organization takes immense pride in communicating its ongoing embrace of its queer and uniquely diverse players. With historical and present prejudice against the LGBT+ community, derby stands as a haven for players looking for a place that will embrace each player's identity. The purpose of the study is to see how RCR’s openly queer settings specifically impact the well-being of its queer members.

Methods: November 2023, I conducted three interviews and a research group using …

Unpacking The Behavioral, Cognitive, Sleep, And Stress Associations With Smartphone Checking, Yi Jing Chua

Dissertations and Theses Collection (Open Access)

The widespread use of smartphones for various daily activities has led many users to habitually check their devices. Smartphone checking may be negatively associated with daily behavioural, health, affective, and cognitive outcomes when it interrupts individuals during their work, health, and well-being-enhancing pursuits. Yet, research on smartphone checking suffers from various research gaps, including the use of cross-sectional design which hinder interpretation of the direction of relationship between smartphone checking and daily outcomes, the presence of individual difference confounds, and relying on subjective smartphone checking measures that are susceptible to recall biases. To address these gaps, the study investigated the …

Effects Of A Cb1 Receptor Antagonist On Anxiety In Adult Rats Exposed To Thc During Development, Jennifer Aguilera-Fonseca, Karla Colley, Atoria Hamm, Eddie Galarza, Joe Morse, Rachel Ntor, Destiny Pichardo, Vincent P. Markowski

McNair Scholars Program

No abstract provided.

The Curse Of Perfectionism, Joel Small Dds, Mba, Pcc, Fdic

Metro Denver Dental Society Articulator Magazine

This article explores the psychological impact of perfectionism among healthcare professionals, drawing parallels with the experiences of professional athletes. It advocates for embracing a growth mindset over striving for unattainable perfection, emphasizing continual self-improvement and the dangers of setting unrealistic standards in demanding fields like dentistry.

A Dual-Angle Exploration Towards Understanding Lapses In Covid-19 Social Responsibility, Sean T. H. Lee, Jerome J. X. Mah, Angela K. Y. Leung

Research Collection School of Social Sciences

Breaking infection chains requires not just behaviours that allow individuals to stay healthy and uninfected (i.e. health protective behaviours) but also for those who are possibly infected to protect others from their harboured infection risk (i.e. socially responsible behaviours). However, socially responsible behaviours entail costs without clear, immediate benefits to the individual, such that public health-risking lapses occur from time to time. In this important yet understudied area, the current exploratory study sought to identify possible psychological factors that may affect people's likelihood of engaging in socially responsible behaviours. Assuming that self-perceived infection should provide an impetus to engage in …

Investigating The Relationship Between Malingering And Institutional Misconduct: Is Psychopathy The Link?, Lily A. Reed

Student Theses

Despite the established relationships between psychopathy and malingering, and psychopathy and risk for institutional misconduct, little empirical literature has been devoted to examining the interaction of these three constructs. The current study aimed to clarify this relationship by examining data from a sample of male criminal defendants within a federal prison located in a metropolitan area of the Southern United States. Data including the MMPI-2, PCL-R, diagnostic, institutional records, and demographic information was collected. Statistical analyses reinforced previous literature and theoretical conceptualizations that posit a relationship between psychopathy and malingering behaviors, as well as institutional misconduct. Preliminary findings suggest links …

Bystander Intervention In The Workplace Sexual Harassment, Yunjung Lee

Student Theses

Despite increased global attention since the #MeToo movement of 2017, workplace sexual harassment remains a pervasive issue. This is because victims of workplace sexual harassment often react passively, meaning that approaches primarily reliant on victim reporting are less likely to succeed. Given this, bystander intervention has emerged as a promising way to prevent sexual harassment and protect victims. Adopting the previous theoretical framework (Bowes-Sperry & O’Leary‐Kelly, 2005), this study aimed to investigate the decision-making process of bystanders responding to workplace sexual harassment, and to identify the relative frequencies of intervention types and influencing factors. 170 participants from various occupations in …