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Articles 61 - 90 of 17306
Full-Text Articles in Entire DC Network
Volume 9 (2026) Climate And Responsibility
Volume 9 (2026) Climate And Responsibility
International Journal on Responsibility
This issue focuses on the various ways responsibility affects environmental justice. Specifically, this volume urges us to think about how societal and individual (in)action influences ecological crises and what informs this behavior, with a specific focus on religious and Indigenous beliefs and values.
Urinary Collagen As An Indicator Of Prostate Fibrosis In Lower Urinary Tract Dysfunction, Claweens Quetant
Urinary Collagen As An Indicator Of Prostate Fibrosis In Lower Urinary Tract Dysfunction, Claweens Quetant
Graduate Masters Theses
Lower urinary tract dysfunction (LUTD) is a progressive disorder that affects millions of men over the age of 50 years old. LUTD manifests as urgency, nocturia, urinary frequency, weak urinary stream, and incomplete bladder emptying (Egan, 2016). The current treatment for LUTD doesn’t always yield the desired results due to several issues. In this thesis, we aim to address the lack of suitable tools for detecting prostatic collagenization and to assess whether urine could serve as a substrate for detecting pro-fibrotic proteins associated with moderate-to-high AUASI scores. We used whole urine from 2 different cohorts, the Boston and the LURN …
The Correlation Between Medication Adherence, Blood Glucose Levels, And Quality Of Life In Patients With Type 2 Diabetes Mellitus At Ciamis Regional Hospital, Amyla Putri Nurul Nazmi, Nur Rahayuningsih, Lusi N
The Correlation Between Medication Adherence, Blood Glucose Levels, And Quality Of Life In Patients With Type 2 Diabetes Mellitus At Ciamis Regional Hospital, Amyla Putri Nurul Nazmi, Nur Rahayuningsih, Lusi N
Pharmacology and Clinical Pharmacy Research
Type 2 diabetes mellitus is a chronic condition requiring continuous treatment, including patient adherence to prescribed medication. This study aimed to explore the relationship between medication adherence, blood glucose levels, and quality of life in patients with type 2 diabetes mellitus at Ciamis Regional Hospital, conducted from January to March 2025, the research employed a quantitative, prospective cross-sectional design involving 49 hospitalized patients. Data included blood glucose levels (RPG, FPG, 2hPG), medication adherence measured using the Medication Adherence Report Scale (MARS-5), and quality of life assessed via the Diabetes Quality of Life-Brief Clinical Inventory (DQOL-BCI). The chi-square test was used …
Alexithymia In Substance Use Disorders: A Scoping Review Of Therapeutic Approaches, Pratami Diah Herliani, Shelly Iskandar, Angela Vera Herman Efendi
Alexithymia In Substance Use Disorders: A Scoping Review Of Therapeutic Approaches, Pratami Diah Herliani, Shelly Iskandar, Angela Vera Herman Efendi
Pharmacology and Clinical Pharmacy Research
Alexithymia, defined as the inability to recognize and express emotions, has a high prevalence (40–50%) among individuals with substance use disorders (SUD), particularly alcohol use disorder, and is associated with poorer clinical outcomes. Despite this, comprehensive mapping of psychotherapeutic interventions targeting this condition within the SUD population remains limited. This study aimed to systematically map the therapeutic approaches investigated to address alexithymia among individuals with substance use disorders and to summarize the reported outcomes. A scoping review was conducted in accordance with the PRISMA-ScR guidelines using systematic literature searches in the PubMed and Scopus databases. Relevant studies were screened based …
From Insect Cognition To Sentience: Exploring The Edge, Catherine Macri, Martin Giurfa
From Insect Cognition To Sentience: Exploring The Edge, Catherine Macri, Martin Giurfa
Animal Sentience
What does The Edge of Sentience tell us about insect sentience and consciousness? In this commentary, we reflect on Jonathan Birch’s framework for defining and scientifically investigating sentience in animals. We discuss the methodological challenges of studying subjective experience in evolutionary distant species, and consider trace conditioning, affective states, and neural architectures as potential windows into consciousness in insects. We argue that uncertainty, whether concerning definitions or methodology, should not prevent experimental investigation; rather it should motivate new approaches and experimental designs for exploring the diversity of conscious experience.
Beyond Better Conditions: Seaweed Farming And The Number Of Sentient Animals In Aquaculture, Shrilaxmi Patil, Matthew Unerman, Wasseem Emam
Beyond Better Conditions: Seaweed Farming And The Number Of Sentient Animals In Aquaculture, Shrilaxmi Patil, Matthew Unerman, Wasseem Emam
Animal Sentience
Oldfield & Bonano (2024) (O&B) document how far fish welfare research lags behind welfare research in other animals. We share O&B’s feelings-based concept of welfare and agree that aquaculture seeded this field; but research volume has not scaled with animal numbers: Welfare attention per farmed fish or decapod remains negligible. Along the lines of preceding commentaries (Maia 2024, Mather 2024), we treat farmed aquatic animals as individuals rather than tonnage. We then raise a point so far absent from the commentary on O&B so far: reducing the number of sentient animals entering intensive systems. Coastal seaweed farming, which cultivates non-sentient …
Evaluation Of Tactile Cueing Embedded In An Aviation Headset On Pilot Altitude Control, Nicholas D. Wilson, Jessica Van Bree, Matthew Cleveland, Sunny Charakuru, Thomas Petros, Richard Ferraro, Kouhyar Tavakolian
Evaluation Of Tactile Cueing Embedded In An Aviation Headset On Pilot Altitude Control, Nicholas D. Wilson, Jessica Van Bree, Matthew Cleveland, Sunny Charakuru, Thomas Petros, Richard Ferraro, Kouhyar Tavakolian
Journal of Aviation/Aerospace Education & Research
This study evaluated the effectiveness of tactile cueing integrated into a pilot’s headset on pilot altitude control during simulated instrument conditions. Pilots typically rely on visual and auditory inputs to maintain situational awareness, but in high-workload or instrument meteorological conditions (IMC), these channels can become overloaded. One underutilized alternative for alerting is a tactile cueing apparatus. Using an X-Plane simulation of a Piper Archer equipped with a G-1000 avionics suite, 39 FAA-certified pilots flew two precision approaches. The experimental group (n = 20) received haptic cues via ear seal-embedded tactors when deviating from assigned altitude or glideslope. The control group …
Food Insecurity Among Freshman Male Collegiate Athletes At A Historically Black University In Maryland, Petita Cue Rentz
Food Insecurity Among Freshman Male Collegiate Athletes At A Historically Black University In Maryland, Petita Cue Rentz
Walden Dissertations and Doctoral Studies
Food insecurity is an emerging public health issue impacting collegiate student-athletes enrolled at Historically Black Universities (HBUs). Recent research revealed that 63% of football players have reported some form of food insecurity which disproportionately impacts Black athletes at higher rates. The purpose of this qualitative study was to explore the lived experiences and dietary behaviors of freshman male collegiate student-athletes who lacked access to food despite receiving athletic scholarships in a publicly funded HBU in Maryland. The research questions for this qualitative study focused on exploring the lived experiencing of Black male athletes who were experiencing food insecurity at an …
Analysis Of Early Menopause And Endometriosis Genetics Merit In Use Of Polygenic Risk Assessments For Prediction, Emily Solomon
Analysis Of Early Menopause And Endometriosis Genetics Merit In Use Of Polygenic Risk Assessments For Prediction, Emily Solomon
Graduate Student Dissertations, Theses, Capstones, and Portfolios
Endometriosis and Early Menopause are reproductive conditions that are under research in women's health. Both conditions impact a woman’s quality of life through severity of symptoms and associated risk factors and are influenced by genetic, hormonal and environmental elements. Both conditions have extensive and growing genetic knowledge that is being used to calculate either an increased or decreased risk of condition development. The array of genetic data shows promises in predicting risk for both conditions, as well as certain symptoms, to contribute to a personalized predictive tool to guide management of care. Endometriosis benefits from a potential polygenic risk assessment …
Mindful Parenting And Toddlers' Food Responsiveness: The Role Of Controlling Feeding Practices, Qingyu Jiang, Holly Wilhite, Natalie A. Williams, Dipti A. Dev, Caron A. C. Clark, Pearl Avari, Sarah B. Ladd
Mindful Parenting And Toddlers' Food Responsiveness: The Role Of Controlling Feeding Practices, Qingyu Jiang, Holly Wilhite, Natalie A. Williams, Dipti A. Dev, Caron A. C. Clark, Pearl Avari, Sarah B. Ladd
Journal of Extension
Controlling feeding practices may negatively impact children's eating behaviors. Mindful parenting may offer a promising way to reduce the use of these practices. This study examined the mediating role of pressuring children to eat and using food as a reward in the association between mindful parenting and toddlers' food responsiveness. Results indicated that higher levels of mindful parenting were associated with lower pressuring to eat, which was related to lower food responsiveness in toddlers. The results may inform Extension professionals providing mindfulness strategies for mothers of young children to improve feeding practices, ultimately reducing children's unhealthful eating behaviors.
Full Issue, Volume 14, Number 1., Donna J. Peterson Dr., Scott Cummings, Elizabeth Gregory North
Full Issue, Volume 14, Number 1., Donna J. Peterson Dr., Scott Cummings, Elizabeth Gregory North
Journal of Human Sciences and Extension
No abstract provided.
Impact Of Stress & Fatigue On Cardiovascular Function In Young Pilots: A Thematic Review, Swarna Manoj
Impact Of Stress & Fatigue On Cardiovascular Function In Young Pilots: A Thematic Review, Swarna Manoj
Discovery Day - Daytona Beach
Impact of Stress & Fatigue on Cardiovascular Function in Young Pilots: A Thematic Review Authors: Swarna Manoj, Scott Ferguson Keywords: pilot, stress, fatigue, heart rate variability (HRV), cardiovascular disease (CVD) Aviation is expanding globally and young pilots are the major workforce, yet FAA protocols require mandatory ECG only from age 35, with annual cardiac screening after age 40. Over the past five years, a pattern of sudden cardiac arrests in pilots particularly aged 30-40 has urged safety concerns. Despite the existing literature examining fatigue, burnout, stress, sleep hygiene and circadian disruption, only few studies systematically examine how these factors impact …
The Gut-Bladder Axis: How Symbiont Microbes Alter Urinary Tract Infections, Benjamin S. Olson
The Gut-Bladder Axis: How Symbiont Microbes Alter Urinary Tract Infections, Benjamin S. Olson
Arts & Sciences Graduate Student Theses and Dissertations
Urinary tract infections (UTIs) are among the most common bacterial infections worldwide. Consequently, they are one of the leading indications for antibiotic prescription. Despite the typically successful treatment of an acute UTI, recurrent infections are exceedingly common, particularly among women. Nearly a quarter of otherwise healthy women will suffer recurrent UTIs (rUTI) after a primary UTI; why these select individuals are continually afflicted is unkown. There are no successful therapeutics to treat rUTI representing a gap not just in the medical toolkit but in our understanding of why rUTI is so prevalent. There are many hypotheses for the risk factors …
Effects Of Human-Animal Interaction On Positive Youth Development: A Replication Study, Allison Pachunka, Jay Jeffries, Lisa Karr, Lena Luck, Bryan A. Reiling, Douglas H. Schultz, Jeffrey R. Stevens
Effects Of Human-Animal Interaction On Positive Youth Development: A Replication Study, Allison Pachunka, Jay Jeffries, Lisa Karr, Lena Luck, Bryan A. Reiling, Douglas H. Schultz, Jeffrey R. Stevens
People and Animals: The International Journal of Research and Practice
Interacting with animals can improve health and well-being across the lifespan. Some programs such as 4-H and FFA center around youth interacting with animals, potentially enhancing youth development. Mueller (2014) investigated whether these interactions and attitudes about animals influenced measures of positive youth development. The aim of our studies was to replicate Mueller’s methods and extend her work by evaluating whether membership in animal-focused youth programs moderate associations between interactions, attitudes, and positive youth development. We did not find strong relationships among human–animal inter-action and positive youth development, which failed to replicate Mueller’s findings. However, we did find relationships between …
Malnutrition Risk, Nutrition Insecurity, Barriers, And Facilitators To Dietary Management Among Adults With Inflammatory Bowel Disease In The Us Rocky Mountain Region: A Cross-Sectional Mixed-Methods Study, Heather Burr, Carrie Durward, Korry Hintze, Getrude Mphwanthe
Malnutrition Risk, Nutrition Insecurity, Barriers, And Facilitators To Dietary Management Among Adults With Inflammatory Bowel Disease In The Us Rocky Mountain Region: A Cross-Sectional Mixed-Methods Study, Heather Burr, Carrie Durward, Korry Hintze, Getrude Mphwanthe
Nutrition, Dietetics, and Food Science Student Research
We conducted an online cross-sectional study to assess malnutrition risk, food and nutrition insecurity, and perceived barriers and facilitators to dietary management among adults (18–64 years old) with a self-reported clinical diagnosis of inflammatory bowel disease (IBD) in outpatient and community settings. We assessed malnutrition risk using the Saskatchewan IBD-Nutrition Risk screening tool, food security risk using the two-item Hunger Vital Signs questionnaire, and nutrition security risk using a validated four-item tool. Open-ended questions elucidated barriers and facilitators to dietary management of IBD. Among 57 participants who self-reported a clinical diagnosis of IBD, 52.6% (n = 30/57) had ulcerative colitis, …
Exercise Intensity And The Effects On Mood And Wellbeing, Emily Amortegui, Ashley Albert, Riley Ensor, Keyanna Keyanna Jackson
Exercise Intensity And The Effects On Mood And Wellbeing, Emily Amortegui, Ashley Albert, Riley Ensor, Keyanna Keyanna Jackson
Discovery Day - Daytona Beach
With many students dealing with anxiety, sadness, and high levels of stress, mental health issues among college students have grown in intensity. A lot of research has been done on the possible benefits of physical activity for mental health, but most of it focuses on correlations rather than the biological mechanisms. The purpose of this study is to examine the effects of varying exercise intensities on physiological stress markers and mood in college students ages 18 to 25. To assure precise intensity levels, participants from Embry-Riddle Aeronautical University will work out at low, moderate, and high intensities while wearing heart …
Comparative Analysis Of Artificial Intelligence (Ai) Implications For Active Learning And Assessment At Various Curricular Levels Of Stem And Health Sciences In Developed Versus Underprivileged Countries, Vinay Munlapudi, Santanu De
Comparative Analysis Of Artificial Intelligence (Ai) Implications For Active Learning And Assessment At Various Curricular Levels Of Stem And Health Sciences In Developed Versus Underprivileged Countries, Vinay Munlapudi, Santanu De
FDLA Journal
Today’s all-pervasive emergence of artificial intelligence (AI) necessitates a comprehensive evaluation of its role in education, especially for occupational disciplines in health sciences and STEM. AI has reshaped student learning and instructors’ navigation of the evolving, post coronavirus infectious disease (COVID-19) global academic landscape. This study aimed at encapsulating evidence-based AI implications for student-centered, active learning and assessment at various curricular levels of science, technology, engineering, mathematics (STEM) and health sciences education in developed versus underprivileged or less developed countries. An extensive, scoping review of 65 recent, scholarly publications was conducted over six months through diverse search engines (PubMed, Google …
A Novel Role For The Infralimbic Cortex In Conditioned Fear Responding, Julia R. Mitchell, Samantha Tuberman, Rylin Lubash, Leticia C. N. Takasumi, Emmett Bergeron, Roberto Calitri, Mikaela A. Laine, Maryclare Pikus, Victoria Vance, Leena Ziane, Rebecca M. Shansky
A Novel Role For The Infralimbic Cortex In Conditioned Fear Responding, Julia R. Mitchell, Samantha Tuberman, Rylin Lubash, Leticia C. N. Takasumi, Emmett Bergeron, Roberto Calitri, Mikaela A. Laine, Maryclare Pikus, Victoria Vance, Leena Ziane, Rebecca M. Shansky
Neuroscience: Faculty Publications
Freezing during Pavlovian fear conditioning is the most commonly used indicator of learned fear in rodents. Although freezing and its neural underpinnings have been widely studied, the field has largely ignored other potential indicators of learned fear. Darting, an escape-like conditioned fear response, occurs more frequently in females and is reliably predicted by a distinct behavioral phenotype: heightened shock response and decreased freezing compared to rodents that do not engage in darting. The experiments in this study sought to expand the field’s understanding of conditioned fear by investigating the neural correlates of conditioned darting, focusing on the infralimbic cortex (IL) …
A Poetic Call For And A Reflection And Commentary On Clarity, Understanding, Hope, Courage, And Compassion, Carroy U. Ferguson
A Poetic Call For And A Reflection And Commentary On Clarity, Understanding, Hope, Courage, And Compassion, Carroy U. Ferguson
Psychology Faculty Publication Series
Finding a published poem I had written as a teenager, titled “The Heavens Weep.” this article uses that poem as the basis for a commentary that reflects on the state of the world today (2026), As a commentary, the article uses the poetic and metaphoric words in the poem as a relevant "reality check" for what is still going on today. In essence, the commentary is about a call for Clarity, Understanding, Hope, Courage, and Compassion, or what I call Archetypal Energies, Higher Vibrational Energies that operate deep within our individual and collective psyches to creatively urge us to "see" …
The Effects Of Psychological Stress On Gut Health In Mice Fed Either A Healthy Diet Or The Total Western Diet, David Keenan Thomas Prescott
The Effects Of Psychological Stress On Gut Health In Mice Fed Either A Healthy Diet Or The Total Western Diet, David Keenan Thomas Prescott
All Graduate Theses and Dissertations, Fall 2023 to Present
The Total Western Diet (TWD), a rodent diet designed to model the typical American dietary pattern, has been shown to worsen inflammation and colitis severity in mice. Psychological stress has also been associated with increased intestinal inflammation, barrier dysfunction, and alterations to the gut microbiome. The goal of this study was to determine whether combining the TWD with psychological stress would further worsen colitis severity and alter the gut microbiome. To investigate this, mice were fed either a healthy control diet or the TWD and exposed to psychological stress using a social disruption stress model. Colitis was induced using established …
Youth Agricultural Engagement And Its Association With Dietary Diversity, Household Food Insecurity, And Nutritional Status In Southwest Nigeria, Sherif Olasoji
Youth Agricultural Engagement And Its Association With Dietary Diversity, Household Food Insecurity, And Nutritional Status In Southwest Nigeria, Sherif Olasoji
All Graduate Theses and Dissertations, Fall 2023 to Present
Youth remain underserved in nutrition research, policy, and programming despite being an integral part of the food systems. While the nutrition-sensitive agriculture framework has been established, there is limited evidence demonstrating how youth engagement in agriculture can serve as a pathway to improve nutritional outcomes. The study assessed youth agricultural engagement and its association with household dietary diversity, household food insecurity, and nutritional status in southwest Nigeria.
Using a cross-sectional design, data on socio-demographic characteristics, agricultural engagement, dietary diversity, household food insecurity, body mass index, and skin carotenoids were collected from 143 youth aged 15 to 35 from Ekiti, Osun, …
Aegic Blogposts - Grain Pricing, Ross Kingwell, Peter Elliott, Chris Carter
Aegic Blogposts - Grain Pricing, Ross Kingwell, Peter Elliott, Chris Carter
Grain and other field crops published reports
The Australian Export Grains Innovation Centre (AEGIC) was an independent, not-for-profit organisation established in 2012 by the Western Australian Government and the Grains Research and Development Corporation (GRDC). Its core mission was to increase the value and international competitiveness of Australia’s multibillion-dollar export grains industry. AEGIC ceased operation at the end of 2025.
Early in its history between 20 to 30 staff from the former Western Australian Department of Agriculture were seconded to AEGIC. Following the formation of DPIRD, AEGIC continued to receive substantial annual funding support from DPIRD.
This publication is a legacy document containing collated AEGIC blog posts …
The Effect Of Sustainable 3d Store Design On Consumer Online Shopping Behavior, Sophie G. Roussel
The Effect Of Sustainable 3d Store Design On Consumer Online Shopping Behavior, Sophie G. Roussel
Apparel Merchandising and Product Development Undergraduate Honors Theses
Sustainability has become a significant factor in shaping consumer shopping habits. Companies are implementing 3D store designs to provide a more immersive and interactive experience. Further study is needed to investigate whether a sustainable, green-focused 3D storefront shifts consumers’ satisfaction with online shopping and their intention to buy products from a sustainable store. This study seeks to fill the research gap by examining how sustainable 3D store design influences consumer shopping behavior. Specifically, three distinct 3D store mockups were developed using Visual Retailing (VR) technology. The same number of visually appealing features, products, and store layouts was used to make …
Genetic Regulation Of Uterine Organogenesis, Diana A. Machado
Genetic Regulation Of Uterine Organogenesis, Diana A. Machado
Dissertations and Theses (Open Access)
In eutherian and marsupial mammals, the site of embryo implantation and gestation is the uterus. The precursor tissue of the uterus, oviducts, cervix, and upper vagina is the Müllerian duct epithelium and its adjacent mesenchyme. Morphological uterine variation between species is established during embryogenesis by species-specific differences in Müllerian duct fusion at the midline, growth, and differentiation. For example, laboratory mice have a bipartite uterus with two uterine horns and a single cervix, whereas humans have a simplex uterus with a single chamber and single cervix. In humans, variations in the fusion process can alter typical uterine morphology, correlating with …
Evaluating The Motivations Of Participants In Online Equine Extension Courses, Sarah Vos
Evaluating The Motivations Of Participants In Online Equine Extension Courses, Sarah Vos
Department of Animal Science: Dissertations, Theses, and Student Research
Traditional program evaluations emphasize participant demographics, knowledge gain, behavior change, and program impact. However, evaluating participant motivation can provide addition insight into why participants enroll in extension programs and help explain participant engagement and persistence throughout a program. The purpose of this study was to evaluate participant motivation in two online equine extension courses and examine potential relationships between motivation, demographics, and course delivery method, and describe participant engagement in Virtual Horse Judging Camp (VHJC). This cross-sectional study utilized convenience sampling of participants in two online equine extension courses, Horse Adult Leader Training and Educational Resource (HALTER) and VHJC. The …
Can Kinematics Specify Tool Use Affordances?, Tyler Duffrin
Can Kinematics Specify Tool Use Affordances?, Tyler Duffrin
All Dissertations
Object properties such as length, shape, and heaviness, as well as affordance-based properties such as strike-with-ability and poke-with-ability, can be perceived via dynamic touch as functions of inertia tensor invariants. The primary question addressed here was whether people can perceive these same power and precision properties for purely virtual objects, which lack dynamic physical forces. The Kinematic Specification of Dynamics (KSD) principle asserts that missing dynamics are lawfully specified by kinematic (visual) motion patterns, such that kinematic information alone may support successful interactions with virtual objects. In three experiments, we investigated (1) whether virtual reality (VR) users could calibrate to …
Menopausal Symptoms, Psychosocial Factors, And Physical Activity Among Physically Active Midlife Females, Ella Onsoriasl
Menopausal Symptoms, Psychosocial Factors, And Physical Activity Among Physically Active Midlife Females, Ella Onsoriasl
Exercise Science Theses & Dissertations
Menopausal symptoms are common during midlife and may be associated with females' physical activity (PA) participation, yet how these symptoms relate to PA levels, perceived confidence and enjoyment, and psychosocial resources such as social support (SS), exercise identity, and quality of life (QOL) remains unclear. The purpose of this study was to examine how menopausal symptom severity relates to PA levels, perceived confidence and enjoyment during PA, and psychosocial factors, including SS, exercise identity, and QOL. This cross-sectional study surveyed 151 midlife females aged 40 to 60 who reported engaging in intentional PA at least once per week. Participants completed …
Secondary Biology Teachers’ Understandings Of Growth Mindset, Kathryn Chapman
Secondary Biology Teachers’ Understandings Of Growth Mindset, Kathryn Chapman
Dissertations
This case study investigates how high school biology teachers understand and apply growth mindset principles in their daily instruction. Using surveys, semi‑structured interviews, and focus groups, the study examines how biology teachers interpret mindset, how they attempt to enact it, and how curriculum demands shape their efforts. Findings show that teachers’ beliefs about intelligence strongly influence their feedback, expectations, and instructional decisions. Teachers described biology as a subject in which struggle is highly visible, emotionally charged, and often tied to students’ prior knowledge, making mindset work both necessary and challenging. Results also indicate that students’ mindsets are shaped by broader …
The Effect Of Cerebellar Transcranial Direct Current Stimulation On Anxiety, Shivangi Bhardwaj
The Effect Of Cerebellar Transcranial Direct Current Stimulation On Anxiety, Shivangi Bhardwaj
All-Inclusive List of Electronic Theses and Dissertations
Anxiety is one of the most prevalent mental health disorders in the U.S. Individuals of all ages are affected by anxiety. Therefore, research into anxiety and its potential treatment has constantly been an area of interest. Newer approaches to managing anxiety include non-invasive stimulation techniques, such as Transcranial Direct Current Stimulation (tDCS), because of its accessibility and effectiveness. Past tDCS work typically focused on regions in the frontal lobe. However, tDCS over the cerebellum has not received as much attention compared to the cerebrum, despite recent work demonstrating cerebellar involvement in emotion processing. Thus, a better understanding of how cerebellar …
Testing P300-Based Biometric Authentication Paradigms, Jordan Razzak
Testing P300-Based Biometric Authentication Paradigms, Jordan Razzak
Electronic Theses and Dissertations
Bench research suggests that P300 amplitude is greater in response to self-relevant stimuli compared to familiar stimuli. This effect could enable a novel method of biometric authentication based on the self-relevant P300. This dissertation aims to: (1) determine the optimal presentation paradigm for leveraging self-relevance in P300-based biometric authentication, and (2) investigate P300 responses from self-relevant stimuli versus stimuli learned over the course of a week.
Two presentation paradigms were compared – rapid serial visual presentation (RSVP) and matrix presentation (MP). Participant-specific RSVP and MP classifiers were trained by applying stepwise linear discriminant analysis to data collected during presentations of …