Digital Commons Network^™

Grasping Type Affects Configural Encoding In Visual Working Memory, Shinhae Ahn

Arts & Sciences Electronic Theses and Dissertations

Previous research has shown that different grasping actions selectively influence the processing of simple visual features based on their relevance to the specific action. However, it remains uncertain if this interaction extends to abstract and higher-order information, such as global configuration extracted from an array of visual objects. The present study aimed to investigate the impact of different grasping types on the processing of configural shape information in visual working memory (VWM). In Experiment 1, participants engaged in a VWM change detection task while adopting either power- or precision-grasping postures. The availability of configural shape information was manipulated through the …

Consistent Across Situations? A Person Specific Approach To Examining A Long-Standing Paradox., Muchen Xi

Arts & Sciences Electronic Theses and Dissertations

Bem and Allen (1974) address the person situation debate by proposing that there are some people behave more consistently, which can be better “explained” try personality traits, than others who are more influenced by situations. However, with failures to directly replicate Bem and Allen’s study, the existence of individual difference in cross situation consistency of behaviors remaining unclear. The current study addressed open questions that arose from the personality consistency debate by employing Mixed Effect Location Scale Model (MELSM) in an intensive longitudinal study. We found 1) there are individual difference in the overall behavioral consistency across situations; 2) there …

A Mega-Study Of Stereotypes And Attitudes Toward Nationality Groups In The United States, Ayse Selin Toprakkiran

Arts & Sciences Electronic Theses and Dissertations

The culture and demographics of the United States have been greatly influenced by numerous immigrant nationality groups, which continue to play a vital role in society. To understand how nationality groups are perceived in the United States, we asked residents to report stereotypes and attitudes toward 28 nationality groups and 6 racial/ethnic groups (N = 7,050). Our findings showed various patterns across 15 stereotypes, grouped under warmth, status, Americanness, and political orientation dimensions. Warmth-related stereotypes and attitudes varied widely across groups and did not follow a discernible pattern. Status-related stereotypes of Asian Americans and East Asian nationality groups were consistently …

Characterizing The Relationship Between Accented Speech Intelligibility And Listening Effort, Mel Mallard

Arts & Sciences Electronic Theses and Dissertations

Unfamiliar accents can make speech communication difficult, both by reducing speech intelligibility and by increasing the effort listeners must put forth to understand speech. However, these two constructs, while related, are independent: for example, two 100% intelligible utterances may require different amounts of effort to accurately process. To better characterize the relationship between intelligibility and effort, this study presents speakers of four intelligibility levels (one natively-accented English speaker, and three Mandarin-accented English speakers) within a dual-task paradigm (featuring a vibrotactile secondary task) to measure listening effort. We found a negative nonlinear relationship between intelligibility and effort, with the steepest slope …

Predictive Looking And Predictive Looking Errors In Everyday Activities, Sophie Su

Arts & Sciences Electronic Theses and Dissertations

People spontaneously segment continuous streams of experiences into distinct episodes. Prediction errors are theorized to drive segmentation. However, existing studies exploring the relationship between prediction error and event segmentation lack a continuous measure of prediction error during naturalistic perception and often fail to distinguish between prediction error and prediction uncertainty. Do moment-by-moment fluctuation of prediction errors, not prediction uncertainty during naturalistic event perception correlate positively with segmentation probabilities? To tackle this question, we harnessed the predictive nature of eye movements and introduced a predictive looking model. In this model, individuals’ prior gaze patterns act as predictors for critical features in …

Emotion Regulation Flexibility: Investigating Perseverative Thinking As A Novel Context, Beatris Garcia

Arts & Sciences Electronic Theses and Dissertations

Emotion regulation (ER) flexibility is a rapidly evolving field within affective science. Current advances have identified context sensitivity as a leading method for measuring ER flexibility, largely focusing on affectivity and situational control as markers of context. In this study, we propose an innovative approach to expand the list of contextual features tied to ER flexibility by using a framework based on Perseverative Thinking (PT). We examined seven PT dimensions, including pleasantness, repetitiveness, self-focus, other-focus, certainty, controllability, and temporal orientation, along with six ER strategies: reappraisal, acceptance, problem solving, expressive suppression, distraction, and cognitive avoidance. Once a day over the …

“Safe People And Safe Spaces:” Filipino American Identity Formation In Response To Local Social Contexts, Cilka Mayumi Hijara

Arts & Sciences Electronic Theses and Dissertations

The identity formation of Filipino Americans has captured scholarly interest due to their unique characteristics and identity attachments. Studies of children of Filipino immigrants are largely focused on individuals from diverse areas and do not explore whether different social environments influence a diversity of identity perspectives. Using data from interviews with 40 children of Filipino immigrants from across the U.S., I examine whether and how their understandings of their identities are shaped by setting. I find that participants’ local contexts, particularly local racial/ethnic demographics during childhood, shape their perceptions of their identities relative to other groups and prevailing categorization schemes. …

How Prefixation, Onset Length, And Coda Length Determine Lexical Stress Assignment When Reading Aloud, Kayla Hensley

Arts & Sciences Electronic Theses and Dissertations

Lexical stress, or which syllable is emphasized in a multisyllabic word, can provide important cues for speech segmentation, lexical class, and reading acquisition. Despite this, much of the literature on reading has focused on single syllable words, neglecting the role that stress can play. In this project, I examine the role of prefixation, onset and coda length in assigning stress in disyllabic words when reading aloud. Study 1 is a corpus analysis of English words with grade level information to replicate the model developed by Treiman et al. 2020 and check for age differences. There were no significant differences on …

Virtue-Driven Leadership: Powering Excellence In Organizations, Joseph Scherrer

Arts & Sciences Electronic Theses and Dissertations

In this thesis, I seek to answer the question “What makes a good leader?” I approach this question systematically, starting in Chapter 1 by asking “What is Leadership?” In attempting to formulate a response, I find that the concept is slipperier than it first appears and difficult to pin down. All the same, I construct a thematic, contextually pertinent definition that provides reasonable precision for the purposes of this study. In Chapter 2, I present a representative survey of the social-scientific academic literature in order to establish the prospect that a philosophy of virtuous leadership can be empirically validated in …

Discounting Of Delayed And Probabilistic Outcomes Across The Adult Lifespan, Haoran Wan

Arts & Sciences Electronic Theses and Dissertations

Intertemporal and risky decision-making predicts many problem behaviors that also decline with age, raising the question: Do intertemporal and risky decisions change with age? Despite the theoretical and empirical importance, the literature under both rubrics reveals inconsistent findings. Some studies suggest that these inconsistencies may be due to the presence of unassessed demographic differences. The present study examined age differences, evaluating the role of demographic variables in intertemporal and risky choice of gains and losses using the discounting framework. Four experiments were conducted, each with one of the four types of discounting: discounting of delayed gains, discounting of delayed losses, …

Between-Task Transfer Of Learned Control Settings: How Far Can It Go?, Merve Ileri Tayar

Arts & Sciences Electronic Theses and Dissertations

Learning-guided control refers to adjustments of cognitive control settings (i.e., relatively focused vs. relaxed) based on learned associations between predictive cues (e.g., stimulus features) and the likelihood of conflict. We investigated the transfer of learned control settings beyond the conditions under which they were learned to examine the flexibility and automaticity of these control settings. In Experiment 1, participants experienced an item-specific proportion congruence (ISPC) manipulation in a training phase in which target color in a Flanker task was biased (mostly congruent or mostly incongruent). Then, in a subsequent transfer phase, they performed a color-word Stroop task in which the …

Projecting, Persuading, & Protecting: A Mixed Methods Analysis Of Adult Children’S Predictions Of Parents’ Quality-Of-Life Valuations In Serious Illness States, Jessica Hahne

Arts & Sciences Electronic Theses and Dissertations

Older adults often face complex serious illness decisions and involve their adult children as shared or surrogate decision makers. However, previous research asking family members to predict older adults’ treatment preferences in serious illness situations typically shows poor concordance with older adults’ actual preferences. In the current mixed methods analysis, we surveyed older adults (n = 38) on their health state valuations in five serious illness scenarios. Two of their adult children (n = 76) predicted their parent’s preferences. Families also participated in a semi-structured conversation to discuss their preferences and predictions.

Quantitative analyses showed that parents’ average valuations were …

A Phenome-Wide Association Study (Phewas) Of Late Onset Alzheimer Disease Genetic Risk In Children Of European Ancestry At Middle Childhood: Results From The Abcd Study®, Aaron Gorelik

Arts & Sciences Electronic Theses and Dissertations

Genetic risk for Late Onset Alzheimer Disease (AD) has been associated with lower cognition and smaller hippocampal volume in healthy young adults. However, whether these and other associations are present during childhood remains unclear. Using data from 5,556 genomically-confirmed European ancestry youth who completed the baseline session of the ongoing the Adolescent Brain Cognitive Development^SM Study (ABCD Study^®), our phenome-wide association study estimating associations between four indices of genetic risk for late-onset AD (i.e., AD polygenic risk scores (PRS), APOE rs429358 genotype, AD PRS with the APOE region removed (AD_PRS-APOE), and an interaction between AD …

Social Anxiety And Romantic Conflict: Examining Prospective Interpersonal Dynamics, Julia Levitan

Arts & Sciences Electronic Theses and Dissertations

Social anxiety disorder (SAD) is associated with impairment in close relationship functioning, including romantic relationships. Although interpersonal theories point to dimensions of dominance and warmth as relevant factors, the momentary interpersonal dynamics that may be contributing to relationship problems remain poorly understood. In the present study, I aimed to examine contemporaneous and prospective associations between dominance and warmth in individuals with (n = 30) and without (n = 29) SAD and their romantic partners during a 10-minute conflict task. Using the Continuous Assessment of Interpersonal Dynamics (CAID) system and multilevel dynamic structural equation modeling (ML-DSEM), I found that …

The Transformation Of Congressional Policy Making In A Partisan Era, Patrick Rickert

Arts & Sciences Electronic Theses and Dissertations

This dissertation explores the transformation of Congressional politics away from traditional practices and the consequences of those changes. In the House of Representatives, I consider this with respect to the party and chamber rule changes introduced by the new Republican majority after the 1994 election, while in the Senate I use the lens of paired voting to evaluate how the Senate has evolved. The first chapter discusses the literature on party government and theorizes how parties have used committees to achieve their goals. Chapters 2 and 3 center how Speaker Newt Gingrich used rule changes to alter the relationship between …

Three Models Of Border Stability And Integrity, Afiq Bin Oslan

Arts & Sciences Electronic Theses and Dissertations

Border policies have gained a surge of interest from politicians, policymakers, citizens and voters in all corners of the globe in the current millennium. In turn, academia too has turned its interest into systematically studying this increasingly salient political phenomenon. At this stage, however, this topic of study remains theoretically under-founded. The primary objective of this dissertation then is to make several theoretical contributions towards the study of border politics. To this end, my dissertation studies the causes and consequences of state decisions (or non-decisions) to secure their borders from social, political and economic perspectives. I approach this problem primarily …

Conceptual Understanding Of Skin Color Inheritance Among Immigrant Children And Adults, Fateme Mohseni

Arts & Sciences Electronic Theses and Dissertations

Previous research on White American children and adults' perception of skin color inheritance found that they expect inheritable properties like skin color to have a greater range of possible outcomes compared to deterministic events like mixing two paints (Schwarzlose et al., 2021). However, it is unclear whether this generalizes to other populations. To address this gap, two studies explored this question with a non-White immigrant population of children and adults. To test individuals' skin color biases, in Study 1 children and adults from immigrant populations in the U.S. were asked to predict a biracial baby's skin color (a socially relevant …

Transdiagnostic Predictors Of Everyday Functioning: Examining The Relationships Of Depression And Reinforcement Learning, Nada Dalloul

Arts & Sciences Electronic Theses and Dissertations

Background and Hypothesis. Identifying the factors contributing to functional deficits in psychotic disorders is essential to developing effective interventions. To address gaps in the literature, the current study had several goals: examine whether there are differential relationships across domains of neurocognition and function, assess whether reinforcement learning is related to function, identify how and if predictors of function are transdiagnostic, determine whether depression and positive symptoms contribute to function, and to further explore whether the modality of assessing function impacts the observed relationships.

Study Design. We examined the neurocognitive and symptomatic predictors of individual functional domains across three measures …

"They Can Murder Us Today And It Wouldn’T Be A Novelty” U.S. Expulsion Policies And The Violent Structure Of The U.S. Enforcement Matrix, Cinthia Romo Alba

Arts & Sciences Electronic Theses and Dissertations

In recent years, the United States implemented two migrant expulsion policies: The Migrant Protection Protocols (MPP), a policy which forces migrants seeking asylum in the U.S. to remain in Mexico for the duration of their immigration proceedings, and Title 42, a policy that expelled migrants back to Mexico under the guise that it was a preventative measure for spreading COVID-19. I ask: What are the experiences of asylum seekers subjected to expulsion policies, and what do their experiences tell us about the structure of the U.S. Border Enforcement System? Relying on six months of ethnographic fieldwork at the Matamoros camp …

Adapting Radically Open Dialectical Behavior Therapy (Ro-Dbt) For Adolescents: Preliminary Testing Of Mechanisms Of Change, Molly Fennig

Arts & Sciences Electronic Theses and Dissertations

Background: Overcontrol is a phenotype characterized by inflexibility, perfectionism, and a need for control or structure, which increases risk for disorders such as anorexia nervosa, social anxiety, and obsessive-compulsive disorder. Given high comorbidity and limited efficacy of current treatments for these disorders, Radically Open Dialectical Behavior Therapy for adolescents (RO DBT-A) attempts to improve outcomes by targeting overcontrol as a transdiagnostic mechanism. This study aimed to test preliminary efficacy of telehealth-delivered RO DBT-A in targeting overcontrol as a mechanism of psychopathology in a heterogeneous clinical sample.

Method: Participants were female adolescents (ages 13-21; 83% white; 80% non-Hispanic/Latino) who presented with …

Characterizing Complex Affective Processing Across Age And In Relation To Social Anxiety Symptoms, M. Catalina Camacho

Arts & Sciences Electronic Theses and Dissertations

Humans require a shared understanding of others’ emotions for adaptive social functioning. For instance, if someone tells a joke and another person laughs, we assume the laughing person was happy because we have a shared concept for such positive interactions. Children develop and refine these concepts as they grow up, but the underlying neural processing that supports this development is unknown. Identifying the neurodevelopment underlying emotion processing could provide important insight to emotional disorders. For example, social anxiety is associated differences in the detection and interpretation of negative or neutral emotional cues, but the underlying neurodevelopment of this behavior is …

Testing Of A Novel Combined Eating-Disorder And Weight-Loss Online Guided-Self Help Intervention For Young Adults With A Binge-Type Eating Disorder And Overweight Or Obesity, Grace Elise Monterubio

Arts & Sciences Electronic Theses and Dissertations

Binge-type eating disorders (EDs) and obesity-related health concerns are two serious medical issues, though study of their treatment has largely remained separate. This study implemented an online, guided self-help ED intervention that concurrently offered Cognitive Behavioral Therapy (CBT)-based tools to improve ED symptoms, while also teaching energy-density food principles of behavioral weight loss (BWL), for individuals with clinical/sub-clinical binge-type EDs with comorbid overweight/obesity. The study aimed to examine change in weight, change in ED symptoms, and program engagement between a combined intervention (CBT + BWL) and an ED-only intervention. Participants in the combined intervention group received weekly session content pertaining …

Interpersonal Emotion Regulation In Current And Remitted Major Depressive Disorder: An Experience Sampling Study, Yunjing Liu

Arts & Sciences Electronic Theses and Dissertations

Individuals with major depressive disorder (MDD) have difficulties regulating emotion on their own. As people also turn to others for help with emotion regulation (i.e., interpersonal emotion regulation [IER]), we examined whether these difficulties extend to IER in current and remitted MDD. We generally expected individuals with current MDD (and remitted MDD to a lesser extent) to utilize IER in distinct ways compared to those with no history of psychiatric disorders (i.e., controls) due to differences in emotional, cognitive, and interpersonal functioning. Using experience sampling, adults with current MDD (n=48), remitted MDD (n=80), and controls (n=87) reported on how frequently …

Politics During And After Democratic Backsliding, Benjamin Rieth Schneider

Arts & Sciences Electronic Theses and Dissertations

Why do voters support backsliding incumbents? Under what conditions are voters more permissive to backsliding? In recent years, scholars have been interested in what leads to voters to support backsliding incumbents where we should expect them to be sanctioned and generally these answers have been focused on partisanship and polarization. I build on this literature by arguing that societal threat reduces the negative evaluation of backsliding actions and highlights the need for competent leaders to protect against future crisis. I develop an original formal model that considers the different strategies available to backsliding incumbents and shows that societal threat benefits …

Essays In Microeconomics, Lintao Ye

Arts & Sciences Electronic Theses and Dissertations

This dissertation has four chapters. The first chapter studies the testable implications of stable weighted (hedonic) coalitions. The second chapter explores an extension of Bayesian persuasion where the receiver can acquire additional information after receiving information from the sender. The third chapter studies observable implications when a decision-maker endogenously forms consideration sets. The last chapter examines weighted network formation where agents have social status concerns. Omitted proofs in each chapter are presented in the last section of each chapter.

In the first chapter, we study the testable implications of a stable profile of weighted coalitions. We then apply our result …

Laywoman Of Right Faith: The Religious Writings Of Wang Peihua (1767-1792), Meijie Shen

Arts & Sciences Electronic Theses and Dissertations

ABSTRACT OF THE DISSERTATIONLaywoman of Right Faith: The Religious Writings of Wang Peihua (1767-1792) by Meijie Shen Doctor of Philosophy in Chinese Language and Literature Washington University in St. Louis, 2022 Professor Beata Grant, Chair

This dissertation is a case study of an eighteenth-century Buddhist laywoman named Wang Peihua (1767-1792) from the affluent Jiangnan area of imperial China. This period saw the flourishing of women’s education and writings, thanks to which we have collections left behind by them that document their own lives and in their own voice, which enabled us to explore their religious experience. As women started to …

An Online Vignette Study To Examine The Outcomes Of A Preclinical Alzheimer Disease Diagnosis, Matthew John Wynn

Arts & Sciences Electronic Theses and Dissertations

As Alzheimer disease research forges ahead, and new potential treatments are developed, a conceptualization is emerging of a presymptomatic disease stage. This stage, known as preclinical Alzheimer disease, is characterized by the buildup of amyloid beta and tau proteins in the brain to abnormal levels in a cognitively normal person. There are unknown potential risks and benefits of communicating biological marker risk information for Alzheimer disease using the preclinical Alzheimer disease diagnostic label. The current study uses a vignette methodology to measure older adults’ understanding of risk information when presented with information regarding their risk for developing Alzheimer dementia. Participants …

A Hybrid Model Of Event Comprehension Predicts Human Activity At Human Scale, Tan Nguyen

Arts & Sciences Electronic Theses and Dissertations

To act effectively, humans store event schemas and use them to predict the near future. How are schemas learned and represented in memory, and used in online comprehension? One means to answer these questions is modeling event comprehension. What are, then, computational principles of event comprehension? We proposed three candidate properties: 1) abstract representation of visual features, 2) predictive mechanism and prediction error as feedback, and 3) contextual cues to guide prediction, and adapted a computational model embodying these properties. The model learned to predict activity dynamics from one pass through an 18-hour corpus of naturalistic human activity. Evaluated on …

Construction And Use Of Cognitive Maps In Model-Based Control, Ata Karagoz

Arts & Sciences Electronic Theses and Dissertations

When making decisions, we sometimes rely on habit and at other times plan towards goals. Planning requires the construction and use of an internal representation of the environment, a cognitive map. How are these maps constructed, and how do they guide goal-directed decisions? We coupled a sequential decision-making task with a behavioral representational similarity analysis approach to examine how relationships between choice options change when people build a cognitive map of the task structure. We found that participants who encoded stronger higher-order relationships among choice options showed increased planning and better performance. These higher-order relationships were more strongly encoded among …

Dei Without Equity: Lab Coat Culture And Persistent Racism In Bioengineering Laboratories, Janet Canady

Arts & Sciences Electronic Theses and Dissertations

From biased algorithms to discriminatory devices to medical racism, it is clear that biomedical products are created in ways that reproduce racial disparities in access and use. Yet the most common solutions recommended by biomedical research institutions emphasize diversity, equity, and inclusion practices that research has already proven ineffective and sometimes harmful. In fact, labs rarely scrutinize whether and how their research products reflect racial bias, assumptions, or ideals. In this paper, I shift the focus to consider how bioengineering laboratories function as a site in which racial processes contribute to product outcomes. I ask, what are the racial dynamics …