Cognitive Science Commons^™

Improved Model For Neurodegeneration In C. Elegans, Jean-Pierre Arditi

Graduate Theses and Dissertations (2019 - present)

During Alzheimer's disease (AD), insoluble amyloid beta (AP) peptides accumulate to form extracellular aggregates (plaques). The direct cause of neuronal dysfunction observed in AD has been broadly investigated. The amyloid hypothesis states that AP plaques are neurotoxic, but recent studies support the AP oligomer hypothesis, which states that intracellular AP (iAP) is neurotoxic. To test this hypothesis, I used CRISPR-Cas9 gene editing to generate two transgenic Caenorhabditis elegans (C. elegans) strains. I generated a strain (RSLl 11) using the rab-3 promoter to co-express GFP in neurons, which showed no gross behavioral changes but had a 50% reduced egglaying rate. RSLl …

Analyzing Patterns In Hofstede’S Cultural Dimensions Towards Individual Ai Receptiveness For Affective Experiences, Maggie Yang

Master's Theses

The use of artificial intelligence (AI) has significantly advanced efficient decision-making, with trust in algorithmic decisions shown to vary by cultural upbringing [1]. As AI becomes increasingly embedded in everyday life, it is essential to examine how cultural values affect trust in AI in subjective contexts that extend beyond purely quantitative analysis, like the personal interpretation of art. This work utilizes Hofstede’s cultural dimensions to investigate potential patterns in receptiveness towards AI predictions during art interpretation, providing insight into individual susceptibility to bias in AI-assisted affective analysis.

The study leveraged a cultural dimension survey and a custom Java program connected …

Empathy On Trial: The Role Of Neuroscience And Communication In Sexual Violence Jurisprudence, Samantha M. Gonzales

Honors Program Theses and Research Projects

Sexual violence remains a contentious public safety and legal challenge, which has become further complicated by the tension between supporting victim-survivors and safeguarding the falsely accused. False accusations, though still well below the numbers of rightly accused, are experiencing a rise in popularity given recent (past ten years) political climates. This thesis examines how communication theory, neuroscience, and law intersect in molding perceptions of truth, culpability, and justice in sexual violence cases; while also examining the intersectionality of those fields in addressing the candor of allegations, the rate of recidivism, and quality of public health and safety. The most prominent …

Selective Attention With Lyrical Music Vs. No Music, Scovs Majors, Rachel Falleur, Kim Niang, Olivia Pokrifcsak

Science University Research Symposium (SURS)

Selective attention refers to the brain’s ability to focus on relevant information while filtering out distractions. Research suggests that language cues and semantic context can shape how attention is directed, indicating that cognitive control is context-dependent (Reisman, 1964). Environmental factors such as background noise can also disrupt attention, leading to reduced accuracy on cognitive tasks (Pearson & Lane, 1984). In the present study, we examined music as both a linguistic and environmental variable influencing selective attention. Previous findings indicate that lyrical music can serve as a significant distractor, impairing attentional performance in both music and non-music majors (Darrow et al., …

Physiological Response To Concealed Information In A Mock-Crime Paradigm​, Ezra Koenigsberg, Tamya Mchenry, Jasmine Manzana, Taylor Powell, Samantha Jackson

Science University Research Symposium (SURS)

The Concealed Information Test (CIT), based on Lykken’s guilty knowledge framework, measures physiological responses when individuals recognize crime-related details compared to neutral alternatives. Previous studies show that variations in stimulus presentation enhance the CIT’s accuracy, especially through changes in electrodermal activity and heart rate. However, few studies have tested whether a Qualtrics-based mock-crime version of the CIT can replicate these physiological patterns. This study addresses that gap by adapting the CIT for a digital research environment. The goal is to determine whether participants show greater physiological arousal—measured through skin conductance, heart rate, and respiration—when exposed to crime-related “critical” stimuli compared …

A Lost Culture Of Touch And Sound: The Contribution Of Visually Impaired Musicians To The Evolution Of The Spanish Guitar, Marco Ramelli

Soundboard Scholar

In the story of music-making, blind musicians have played an intrinsic role, helping to drive the development not only of musical styles but also of instruments, instruction, and aesthetics. Many musical practices were cultivated first within blind communities and adopted only later by sighted musicians, often with a gradual erasure of their original context. The history of the Spanish guitar offers a compelling case study of this progression, demonstrating how the contribution of blind musicians could be both wide-reaching and yet, over time, forgotten. The history of this contribution is challenging to recover, for in Spain as elsewhere, blind musicians …

Unraveling The Lullabies Of Learning: Exploring The Role Of Individual Components Of Infant-Directed Speech In Language Learning, Stephanie L. Lopez

LSU Doctoral Dissertations

Children learn language more effectively from infant-directed speech (IDS) than adult-directed speech (ADS). Three experiments were run (a pilot and two full experiments) testing the effects of pitch and pitch variability on segmenting a target word out of the speech stream and then associating it to an object. Visual prosody via eyebrow movements and lip contours were added as additional cues after the Pilot Study. Additional factors included after the Pilot Study were shortened sentences from 10 syllables each to seven syllables each, shortened target words from three syllables to two syllables, consistent syllable onset of target words, and two …

Access Denied: An Argument Against King’S Propositional Access Principle, Jesse Fitts

Philosophy Faculty Research

Accounts of propositions face a problem that originates in the ontology of numbers: If propositions are abstract and causally isolated, then it’s unclear how agents cognitively access them. Jeff King presents a solution to this problem for his theory of propositions. King’s solution follows from a more general principle of cognitive access, which this paper challenges.

Itegration Of Emerging Technologies In Cybersecurity Education, Dimitar Bogatinov, Nevena Serafimova, Aleksandar Petrovski, Andrej Iliev, Biljana Karovska

Journal of Peace, Conflict, and Security Studies

Emerging technologies such as Artificial Intelligence (AI), Virtual Reality (VR) are revolutionizing cybersecurity education by offering immersive, interactive learning experiences tailored to the tech-savvy Generation Z and Alpha learners. Traditional educational methods are increasingly inadequate for preparing students to navigate the rapidly evolving cyber threat landscape.

Virtual labs, AI-driven tutors, and cyber training environments create dynamic learning opportunities where students can engage in realistic simulations to develop critical skills in threat detection, response, and mitigation. However, challenges such as high implementation costs, rapid technological advancements, and a shortage of qualified instructors complicate the integration of these technologies.

Despite these challenges, …

Wired Differently, Working Brilliantly: Understanding And Supporting Adhd & Audhd Employees, April Miller, Katherine Loving

Faculty Articles & Research

This paper explores the unique experiences, strengths, and challenges faced by neurodivergent individuals—particularly those diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD), as well as the overlapping condition often referred to as AuDHD—in both clinical and workplace settings. It begins by examining diagnostic criteria, comorbidities, and the evolving understanding of ADHD and ASD as intersecting neurodevelopmental conditions. The paper then highlights common cognitive, emotional, and sensory challenges, including time blindness, neurodivergent paralysis, masking, overstimulation, executive dysfunction, rejection-sensitive dysphoria (RSD), and auditory processing disorder (APD).

Despite these challenges, many neurodivergent individuals possess exceptional strengths such as creativity, adaptability, rapid …

Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray

Journal of Humanities and Social Sciences

The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …

Supporting Digital Accessibility In Community College Libraries, Jessica Tipton

Sabbatical Projects

Original Sabbatical Proposal: As part of my dissertation on removing accessibility barriers to library services and resources, I will evaluate materials our library creates, purchases, and shares, focusing on WCAG 2.1 AA compliance.  I will earn a Certified Professional in Accessibility Core Competencies (CPACC) certification and create a guide for academic librarians on developing accessible learning materials and evaluating purchased content to ensure equitable access for all students.

The Science Of Sound: Studying The Cognitive, Emotional, And Physiological Effects Of Frequency, Genre, And Music, Jett Yarborough

Senior Honors Theses

Music influences emotion, physiology, and cognition, yet little is known about how the frequency it is tuned to affects these influences. Prior research has shown that music tuned to 432 Hz can reduce stress, lower blood pressure, and improve sleep. My colleagues and I conducted two studies to investigate this. Our research found that music tuned to 432 Hz promotes a significant increase in memory retention and induces a state of focus and relaxation. These results suggest that shifting from the standard tuning frequency of 440 Hz to 432 Hz could have a profoundly positive impact on our daily lives. …

Learning In Virtual Environments With Varying Levels Of Sensory Information, Maryam Derayati Far

Psychology Theses and Dissertations

The sensory environment plays a critical role in shaping learners’ attention, engagement, and retention. This thesis investigates how varying levels of sensory input in virtual reality (VR) classrooms influence learning for two age groups—children and young adults—and explores how individual differences in sensory processing moderate these effects. Using immersive VR technology to simulate classroom settings, two experimental studies were conducted. Study One involved 60 children aged 6–15 years, recruited primarily through a university-run summer camp. Study Two included 57 undergraduate students aged 18–36 years, recruited through a research participation pool. In both studies, participants were randomly assigned to either a …

The Double-Edged Role Of Cognitive Reappraisal: A Moderated Mediation Model Of Manager Support And Emotional Exhaustion Among Hotel Supervisors, Han Chen, Yvette Green

Journal of Global Hospitality and Tourism

Applying the Conservation of Resources Theory and the Affective Event Theory, this study explores the interplay between perceived manager support (PMS), negative emotions, and emotional exhaustion among hotel supervisors. The study also examines the moderating role of cognitive reappraisal strategy on the above relationships. Data were collected from a sample of U.S. hotel supervisors. Results showed that negative emotions play a mediating role in the relationship between PMS and supervisors’ emotional exhaustion. Cognitive reappraisal amplified the negative effect of PMS on negative emotions, the positive relationship between negative emotions and emotional exhaustion, and the indirect effect of PMS on emotional …

Unveiling The Precision Of Physiological Signals In Prediction Error During Fear Learning: Insights From Associative Strength And Generalized Uncertainty, Haja H. Jallo-Jamboria

Dissertations, Theses, and Capstone Projects

Prediction error (PE) is the discrepancy between expected and actual outcomes. It is a central mechanism in associative learning particularly within fear-conditioning paradigms. Identifying physiological markers of PE in aversive contexts has important implications for refining learning models and enhancing clinical interventions for anxiety-related disorders. This study examined skin conductance response (SCR) as a potential physiological index of PE by analyzing both anticipatory and omission-related responses across multiple learning phases. Participants completed a Pavlovian fear-conditioning paradigm in which two conditioned stimuli (CS+) signaled threat at different reinforcement probabilities: CS+100 (certain threat) and CS+50 (uncertain threat), alongside a non-reinforced safety cue …

Processing Of Diphthongs By Turkish English Bilinguals: An Erp Study, Ecem Kopuz

Dissertations, Theses, and Capstone Projects

This study examines how native phonological experience influences the brain’s response to speech sounds in Turkish-English late bilinguals and English monolinguals. We asked whether neural responses reflecting encoding of auditory information would be sensitive to language specific experience. Using event-related potentials (ERPs), and specifically, the Acoustic Change Complex (ACC) we measured neural responses to four stimuli, /u/, /ua/, /iu/, and /ia/, where vowel quality changes for three of these. A change from /u/ to /a/ or /i/ to /a/ within a syllable (as in [ua] and [ia]) represents a clear vowel quality shift. All participants were expected to show sensitivity …

Using Machine Learning Methods To Evaluate Undergraduates’ Executive Function In The Context Of Game-Based Measurement, Ming Chen

Dissertations, Theses, and Capstone Projects

Traditional performance-based measurements have faced criticism due to their potential to induce test fatigue and their limited ecological validity. In contrast, game-based assessments have demonstrated the capacity to engage participants effectively in tests and enhance ecological validity by replicating real-world scenarios. Nevertheless, conventional statistical approaches may prove insufficient in capturing the intricate, non-linear associations between participants' gaming performance and their cognitive capabilities. Leveraging the potential of machine learning (ML) techniques, which can model complex problems, offers a promising avenue for estimating students' performance in video games. This dissertation aims to explore various ML methods for the validation of three game-based …

Socio-Technical Exchange With Machines: Worker Experiences With Complex Work Technologies, Cameron W. Piercy, Reaia Turner-Leatherman

Human-Machine Communication

Machines are now commonplace work partners and Human-Machine Communication (HMC) is part of modern work. Guided by the machine heuristic and Social Exchange Theory (SET) this paper uses interviews with 22 workers to explore the socio-technical relationships between humans and machines at work. Participants worked with complex machines across a wide variety of industries and roles and findings reveal participants see machines as part of the work ecosystem, develop everyday machine heuristics to guide repeated interactions with machines, and that elements of human uniqueness persist in evaluations of humans and machines. Discussion points emphasize situated and developing human-machine interaction scripts, …

Gratifications That Contribute To Compulsive Youtube Use Among University Students, Mkhululi Tshepo Ncube, Zweithini Mabhena, Wallace Chigona

African Conference on Information Systems and Technology

This study investigated the gratifications contributing to compulsive YouTube use among university students. Compulsive YouTube use, marked by an inability to regulate consumption despite negative impacts to the user, is analysed through the Uses and Gratifications Theory (U&G) and Compulsive Internet Use (CIU). Specifically, the study examined how different gratifications—such as emotional support, habitual viewing, and escapism—drive compulsive use patterns. A cross-sectional survey strategy was employed, collecting data from 175 university students through structured online questionnaires. The study used Partial Least Squares Structural Equation Modelling (PLS-SEM) to test the relationships between the identified gratifications and compulsive usage behaviour. The findings …