Examining The Complementary Nature Of Working Memory And Dual Coding Theory, Elizabeth Hofschulte Collins

UNLV Theses, Dissertations, Professional Papers, and Capstones

The working memory system is responsible for maintaining, manipulating, and transferring information into long-term memory, yet it operates under strict capacity limitations. Dual coding theory proposes that information can be encoded both verbally and visually, allowing learners to distribute cognitive load across complementary representational systems. Leveraging dual coding may therefore enhance recall, particularly for noun-based stimuli, though there is little to no research exploring this possibility. In the present study, 529 adults completed a forward digit span task and pre-test and post-test free recall tasks involving concrete, abstract, and mixed nouns. Participants were assigned to one of four instruction groups …

Face Recognition Ability: The Role Of Facial Experience Across The Lifespan, Kirsty Kulhanek

UNLV Theses, Dissertations, Professional Papers, and Capstones

The other-race effect is a phenomenon in which individuals are better able to recognize individuals of their own race than individuals of another race. These effects begin to develop during the first year of life and may be attenuated by intergroup contact. Limited research in the language domain has suggested that multilingualism may result in easier learning of non-native speech contrasts, so it is of interest whether early experience with racially diverse faces may result in more easily learning to recognize unfamiliar race faces. We conducted two studies to examine the effects of early diverse experience with faces on recognition …

Gaming: An Untapped Resource For Women In Computer Science Careers?, Claudia Quynh Luu

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research focused on women who identify as gamers (i.e., an individual who regularly plays video games) with the goal of better understanding how being a gamer might help or hinder women’s interest in computer science careers. In particular, I examined the connection between interest in computer science careers, gaming, sexual harassment experiences, coping strategies, and allyship for women in gaming using a mixed-methods approach. The sample (N = 166) included women identifying as previous or current gamers. Participants were recruited from a psychology participant pool and gaming communities on Discord. We conducted a series of analyses to examine whether …

Hypervigilance In Emerging Adulthood: The Impact Of Trauma, Milestone Achievement, And Minority Identity, Alexis Rice

UNLV Theses, Dissertations, Professional Papers, and Capstones

Emerging adulthood is a critical developmental period marked by identity exploration, increased autonomy, and heightened vulnerability to societal pressures. This mixed methods study examined how hypervigilance: a heightened state of alertness often associated with trauma and minority stress- varies by gender, sexual identity, racial trauma exposure, and adulthood milestone achievement among emerging adults aged 18–29. A total of 369 participants completed measures assessing hypervigilance behaviors, adulthood milestone attainment, and trauma exposure. Quantitative analyses revealed that sexual and gender minority (SGM) individuals and cisgender women reported significantly higher levels of hypervigilance compared to their counterparts. Witnessing trauma inflicted on someone of …

The Effects Of Educational Materials On Knowledge And Attitudes Toward Psilocybin, Lindsey Elise Wade

Master's Theses

Depression is one of the most prevalent and burdensome mental health conditions worldwide, affecting millions and contributing to over 700,000 deaths by suicide annually. Nearly half of patients with major depressive disorder fail to respond adequately to standard antidepressant treatments such as selective serotonin reuptake inhibitors (SSRIs). Psilocybin-assisted therapy (PAT) has emerged as a promising alternative for treatment-resistant depression (TRD), yet public understanding of this therapy remains limited. The present study examined whether a brief psychoeducational intervention could affect knowledge and attitudes toward PAT among members of the general public in the United States. Participants were randomly assigned to read …

The Implementation Of Tact And Bidirectional Intraverbal Training In Teaching A Foreign Language: A Systematic Replication, Karen Parra Caballero

Seton Hall University Dissertations and Theses (ETDs)

The current study replicates and extends Yamaguchi and Matsuda (2024) to evaluate the effects of foreign tact and bidirectional intraverbal training on teaching foreign-language vocabulary to adults. An adapted alternating-treatments design was used to evaluate the effects of learning vocabulary of a foreign language through tact teaching (tacting a picture in French), foreign-native intraverbal teaching (vocalizing a French word in the presence of the Spanish word), and native-foreign intraverbal teaching (vocalizing a French word in the presence of the Spanish word). Each teaching condition had an assigned stimulus set for teaching, and an additional stimulus set was included as a …

Assessing The Relationship Between Treatment Quality, Matching And Dosage And Juvenile Justice Outcomes Among Youth With Co-Occurring Substance Abuse And Mental Health Disorders, Kevin T. Wolff, Michael T. Baglivio, Joshua A. Lang

Publications and Research

This study examined differences among youth in deep-end juvenile justice residential placement who did, and did not, present with co-occurring disorders. The prevalence of cooccurring mental health and substance use/abuse issues was found to be 19%, far lower than that of prior work. Researchers demonstrated more similarities than differences between youth with and without co-occurring disorders, both in terms of their criminal histories and the prevalence of their criminogenic needs. Additionally, the residential programs across Florida appear to provide treatment at similarly high levels of integrity, as measured by 1) matching treatment services to the highest three dynamic risk assessed …

Trust And Learning In Early Childhood, Anjuii Barrett

Arts & Sciences Graduate Student Theses and Dissertations

Abstract

Psychiatric Symptom Severity And Performance Monitoring: Intraindividual Variability In Neural Responses And Behavioral Adjustments To Errors, Bohyun Park

USF Tampa Graduate Theses and Dissertations

Performance monitoring is a cognitive process that involves evaluating one’s own performance and adjusting behavior accordingly. Atypical neural and behavioral indices of performance monitoring are commonly observed in individuals with psychopathology and have led to hypotheses that perturbed performance monitoring may contribute to functional impairment. However, neural and behavioral indices of performance monitoring are often examined in isolation, so it remains unclear how error-related neural activity relates to subsequent behavioral adaptation on a trial-by-trial basis, and whether this coupling varies across different levels of internalizing and externalizing symptoms. The present study examined trial-level relationships between error monitoring event-related brain potentials …

Neurobehavioral Mechanisms Of Psychotic-Like Experiences And Cannabis Use, Ethan Campbell

Psychology ETDs

As cannabis use has increased steadily over the past decade, there is critical need to evaluate early cannabis use as a potential risk factor for the development of psychosis. Neurobehavioral mechanisms underlying novelty salience could clarify how cannabis exposure may influence subclinical psychotic-like experiences (PLEs). The present study leveraged dynamic functional connectivity and task-fMRI to assess the role of novelty processing in cannabis use and PLEs. A group of brain regions dynamically tied to the salience network while viewing short films were found to increase their activation as a function of stimulus novelty during a novelty bandit task. PLEs were …

A Rodent Model Of Enhanced Anticipation Of Positive Events: Sex-Specific Modifications In Cognitive Bias And Emotional Resilience, Sarah C. Hartvigsen, Megan Hooper, Olivia Harding, Evelyn Barringer, Aditya Narayanan, Brendan Crockett, Yulia Shatalov, Paean Luby, Braden Wixted, Molly Kent, Kelly Lambert

Psychology Faculty Publications

While it is known that chronic unpredictable stress and negative events adversely affect neurobiological outcomes, much less is known regarding the neurobiological impact of positive emotions such as chronic anticipation of appetitive events. From a translational perspective, an enhanced understanding of the impact of extended exposure to positive emotions may provide novel insights into effective non-pharmacological, behavior-based approaches to enhance mental resilience. Here, we investigate a novel rodent model of chronic Unpredictable Positive Event Response (UPER) training in male and female Long Evans rats to examine behavioral, neural, and endocrine effects of enhanced anticipation of positive events. Rats were exposed …

Bearing The How: Self-Compassion, Religiosity, And Basic Psychological Needs As Predictors Of Meaning In Life, Benjamin Wenndorf

Doctor of Psychology (PsyD)

While meaning in life (MIL) has been established as a significant contributor to psychologists’ understanding of wellbeing (Pollet & Schnell, 2017; Steger et al., 2008; Steger et al., 2011), some theorists believe MIL to be the fundamental human drive (Frankl, 1946/1962). Despite the significance that has been placed on MIL as a core component of human existence, little research has explored more than one variable at a time in relationship to MIL. Recent literature has explored self-determination theory’s (SDT) basic psychological needs microtheory as a predictive model for understanding MIL within a greater context of positive psychology (Martela et al., …

Learned Resiliency: Lived Experiences Of First Responders, Kevin Francis Sullivan

Walden Dissertations and Doctoral Studies

Scholarly literature has found that post-traumatic stress impacts first responders; however, little attention has been paid to how first responders learn resiliency through post-traumatic growth (PTG). The purpose of this hermeneutic phenomenological study was to explore a gap in the literature of first responders who learned resiliency through posttraumatic growth following a critical incident in the line of duty. The research study was grounded in Heidegger’s philosophy of hermeneutic phenomenology, guided by resiliency theory , and informed by post-traumatic growth theory. Seven first responders from multiple disciplines were invited to participate in semi-structured interviews designed to provide rich and reflective …

Anxiety, Stress, And Depression As A Predictor Of Established Vaping Among High School Students, Autumn Schneider

Theses and Dissertations

Previous research has linked initiation of e-cigarette use with mental health but has not identified how mental health factors impact patterns of use of these products in adolescents. I tested the hypothesis that adolescents who report vaping to cope with stress, depression, and anxiety have more established patterns of use with data from the National Youth Tobacco Survey. Crosstabulations and logistic regression outcome measures included current use, intensity of use, and cumulative lifetime use. Reasons for initial and current use related to mental health were associated with current e-cigarette use, more intense use, and higher cumulative use. Mental health plays …

More Than Just A Criminal: Talking Back As A Critical Autoethnographic Journey, Anakin Rivera Ramirez

Psychology Faculty Publications and Presentations

This article explores the experiences of doctoral students with criminal records navigating higher education, using a critical theoretical framework to highlight the unique challenges and triumphs I faced. Drawing upon decoloniality and critical race theory perspectives and activism, I define my critical scholarship as challenging the dominant oppression through thoughts and actions. Through autoethnographic and self-reflective narratives, I reflect on how my lived experiences as a Latino who has experienced criminalization. I have shaped my academic pursuits and critical consciousness. The autoethnography discusses systemic barriers such as stigma, discrimination, and institutional biases, showing how these obstacles have informed the author’s …

Belonging Is A Verb, Becca Lory Hector

Ought: The Journal of Autistic Culture

This essay explores belonging as an active process rather than a fixed state, particularly through the lived experiences of Autistic adults. Drawing from community practices of care, mutuality, and interdependence, it reframes belonging as a collective verb, something created through shared action rather than conformity. By centering Neurodivergent ways of connecting, this piece argues that Autistic models of community offer transformative insights into authenticity, inclusion, and the repair of social harm.

A Functional Mri Meta-Analysis Encoding In Alzheimer’S Disease, Joanne Ha

Master's Theses

Alzheimer’s disease (AD) is the most common form of dementia and is characterized by episodic memory impairment. Numerous functional magnetic resonance imaging (fMRI) studies have examined brain activity differences between individuals with AD and age-matched controls during memory encoding. However, small sample sizes and methodological variability across studies have limited the ability to draw meaningful conclusions regarding brain activity underlying encoding impairments. We conducted a meta-analysis to identify consistent patterns of hyperactivity and hypoactivity in AD during episodic memory encoding. Using PubMed to identify studies that met our inclusion criteria, 1,002 studies were screened; ultimately, seven studies were included in …

Closeness, Conflict, And Achievement: The Role Of Parent–Child Relationships In Homeschooled And Public-Schooled Children, Celeste Gonçalves Tomaz

Honors Capstones

The parent–child relationship has been found to be a predictor of children’s academic and socio-emotional outcomes, with parent-child closeness linked to motivation and persistence (Mo & Singh, 2008; Silinskas & Kikas, 2022) and parent-child conflict associated with emotional and behavioral difficulties (Dotterer et al., 2008; Pinquart, 2017). The homeschooling context may increase these associations since children spend more time with their parents, who have caregiving and instructional roles (Padilla, 2021; Thomas, 2016). Even with growing research on academic and socio-emotional outcomes, few studies have examined whether the strength of the parent–child relationship is influenced negatively or positively by schooling type. …

The Reception Of Neurodiversity Represented Within Netflix’S Wednesday, Anna Stevens

Graduate Theses & Dissertations

This paper explores how neurodiversity is represented through popular media - particularly Netflix's show Wednesday - and aims to discuss the effects this representation could have in regards to how it's received by the public, as well as those who are neurodiverse.

Gambling Behaviors, Perceptions, And Risks Among Nevada Adults, Andrea Dassopoulos

International Gaming Institute Faculty Research

This study presents a statewide assessment of gambling behaviors, perceptions, and gambling-related risk among 1,078 Nevada adults. Using a mixed-source, population-calibrated survey developed by UNLV and NORC, the research measures gambling participation, motivations, venue exposure, and attitudes toward harm, treatment, and regulation. The Problem Gambling Severity Index (PGSI) identifies substantial levels of harm: nearly half of past-year gamblers show some degree of risk, with the highest rates among younger adults, racially diverse groups, gaming and hospitality workers, and those who gamble in neighborhood bars or slot parlors. The survey also documents public beliefs about gambling addiction, youth exposure, stigma, and …

The Power Of Positive Lesbian Representation In Television: How It Affects The Well-Being And Identity Formation Of Lgbtq+ Adults, Brittany Berry

University Honors Theses

To date, there are no studies which explore the effects that positively represented Black and lesbian characters in television have on LGBTQ viewers. Exposure to LGBTQ characters has the potential to validate LGBTQ identities and improve well-being. A comprehensive literature review and quantitative analysis using Żerebecki et. al.'s codebook reveals there are simply not enough characters depicted to provide such research. In an attempt to demonstrate the qualities possessed by positively portrayed Black, lesbian characters, this study analyses Taissa Turner from the hit series Yellowjackets available on the streaming network Paramount+.

Semantic Networks In Relapsing-Remitting Multiple Sclerosis Exhibit Reduced Efficiency, Interconnectivity, And Flexibility, Sophia Lall, Jennifer Pardo, Joshua Sandry

Department of Psychology Faculty Scholarship and Creative Works

Background

Word-finding deficits are common in persons with relapsing-remitting multiple sclerosis (pwRRMS); this may be related to the inefficient organization of semantic information.

Objective

To understand whether the semantic organization and semantic retrieval are impacted in pwRRMS.

Methods

Semantic fluency data from 64 pwRRMS and 73 controls was utilized to (1) derive standard verbal fluency measures using the Semantic Network and Fluency Utility R package and (2) build semantic networks via the correlation-based network approach in the SemNet R package. Subjective word-finding concerns were assessed in a subgroup of the sample. Group differences were evaluated.

Results

PwRRMS endorsed more frequent …

A Pilot Study Of Life Model Informed Therapy And Its Efficacy For Reducing Anxiety And Increasing Joy In Adults, William R. Mouer

Doctoral Dissertations and Projects

This pilot study researched Life Model Informed Therapy (LMIT), a modality developed into a six-week treatment targeted to decrease anxiety and increase joy in adults that self-reported as having anxiety. Fourteen participants were recruited by Facebook ads in the Charlotte, North Carolina area. Outcome data were collected using the State Joy Scale (SJS) and Beck Anxiety Inventory (BAI). Participants received the same LMIT treatment for six consecutive, weekly, one-hour sessions. Participants self-reported on their joy and anxiety levels at three periods of time, including a pre-treatment, post-treatment and one month after-treatment test. Two one-way RM-ANOVA tests were conducted. Results of …

Not Feeling The Skin I Am In: A Phenomenological Qualitative Study On The Importance Of Belonging For Black Undergraduate Females At Pwis, Sheila Marie Hudson

Doctoral Dissertations and Projects

The purpose of this phenomenological study will be to discover the importance of finding and establishing belonging for Black, female undergraduates at PWIs. The theory guiding this study is Maslow’s theory on humanistic needs, as it explains the relationship between belonging as a human need for motivation and how PWIs can encourage these students to find their place on the campus to be motivated and retained. The central research question for this study is: What are the lived experiences of Black females who attend PWIs in establishing a sense of belonging on the campus? The methodology for this study will …

Changing How Foster Care Begins: A Qualitative Study To Assess The Success Of One Specific Nonprofit, Madeline Ewoldt

Doctoral Dissertations and Projects

Most foster parents feel they do not receive adequate emotional support, funding, and preparation for their foster children in their care, which can lead to turnover, placement disruptions, and additional unnecessary caregiver changes for foster children. Attachment Theory explains children need consistent, warm, and loving caregiver relationships for healthy emotional, cognitive, and social development (Bowlby, 2018). For children in foster care, these relationships are already disrupted, therefore intervention for foster parent resiliency must be analyzed. The Bible calls Christians to care for the orphans, which leaves a large responsibility on Christians to care for those in foster care. There is …

Investigating Personality Themes And Constructs Among Professional Horse Trainers, Jenny Norton Schamber

Doctoral Dissertations and Projects

The relationship between horses and humans has evolved and now horses are a part of therapy, leisure activities, competitions, and companionship with humans, and this evolution beckons further research into aspects that contribute to positivity in this relationship. This research examined the themes of personality among professional horse trainers by utilizing the Riso-Hudson Enneagram Type Indicator (RHETI), the Ten-Item Personality Inventory (TIPI), and semi-structured interviews. To be included in the study, participants needed to be at least 18 years of age, live in the United States, and receive at least half of their yearly income from training horses. There were …

Attrition Experiences Among Officers In A Texas Correctional Organization, Dewanou Frejus Aisse

Walden Dissertations and Doctoral Studies

The Texas Department of Criminal Justice (TDCJ) faces employee retention challenges, and recruiting and retaining correctional officers remains TDCJ’s most significant challenge and highest priority. Correctional facility leaders need to understand these challenges as indicators of workforce sustainability. Grounded in job embeddedness theory, the purpose of this general qualitative study was to explore the turnover experiences of Texas correctional officers, to understand why officers left their jobs, and the factors that contributed to their decisions to stay in their jobs. Participants comprised 11 former correctional officers who had worked between 5 months and 6 years for the TDCJ. Data were …

Early Life And Post-Traumatic Growth Among Urban African Americans, J. Howard Streeter Iii

Walden Dissertations and Doctoral Studies

Post-traumatic growth (PTG) has received increasing attention in psychological research, yet the PTG experiences of African Americans remain underexplored. Trauma researchers have established the common prevalence of trauma within this population, but there have been very few studies on how African Americans traverse trauma according to PTG. Understanding PTG in this population is essential for clergy, coaches, parents, counselors, and others who work in these communities. The purpose of this quantitative survey study was to determine whether there was a statistically significant relationship between rumination, religious orientation, religious commitment, and stressful life events (SLEs) and PTG among urban African American …

Compensation Transparency In The U.S. Healthcare Workforce, Brandon Perkins

Honors Projects

This study investigates how perceptions of pay transparency among U.S. healthcare workers relate to work engagement, burnout levels, and intentions to stay with their current institution. A quantitative survey was conducted of 200 clinical and non-clinical employees across academic, nonprofit, for-profit, and government healthcare organizations. Self-reported views of transparency were evaluated in relation to validated measures of work engagement, burnout, stay intentions, and pay secrecy. The results showed that increased perceived compensation transparency was highly connected with greater work engagement and lower levels of burnout. Both engagement and burnout appeared as major indicators of the employees' intentions to stay with …

Ctrl + Alt + Inner Speech: A Verbal–Cognitive Scaffold (Vcs) Model Of Pathways To Computational Thinking, Daisuke Akiba

Publications and Research

This theoretical paper introduces the Verbal–Cognitive Scaffold (VCS) Model, a cognitively inclusive framework which proposes the cognitive architectures underlying computational thinking (CT). Moving beyond monolithic theories of cognition (e.g., executive-function and metacognitive control models), the VCS Model posits inner speech (InSp) as the predominant cognitive pathway supporting CT operations in neurotypical populations. Synthesizing interdisciplinary scholarship across cognitive science, computational theory, neurodiversity research, and others, this framework articulates distinct mechanisms through which InSp supports CT. The model specifies four primary pathways linking InSp to CT components: verbal working memory supporting decomposition, symbolic representation facilitating pattern recognition and abstraction, sequential processing enabling …