Cognitive Science Commons^™

Awareness In The Brain: A Mechanistic And Descriptive Account, Jacob Fried, Roy Pereira

Honors Thesis

An exploration of the different aspects of consciousness and their biological underpinnings, followed by a review of existing theories of awareness in the brain and a critique of the existing research. This paper conducts a review and critique of the contemporary research and finds that no existing theory currently offers an account of awareness in the brain that is both mechanistic and descriptive in nature. Thus, this paper proposes a new theory of the process of awareness in the brain, wherein Attention Schema Theory is considered as the mechanism of awareness and Global Neuronal Workspace Theory as its nature.

Children's Beliefs About Search Engines., Lauren N. Girouard-Hallam

Electronic Theses and Dissertations

Children rely on information from other sources to think and learn about the world around them. As the world around them digitizes, their options for where to seek new information have expanded to include technological sources like Google Search. This dissertation examines what factors impact children’s trust in search engines, particularly Google. In the first set of studies, 4- to 8-year old children were asked whether technological informants and a teacher could answer stable and changing questions, and which informant would have the better answer. With age, children endorsed the Google search engine at higher rates and the teacher at …

The Role Of Executive Functioning On Anxiety And Overcontrol On Neurodiverse Youth, Sydney Przygoda

Theses, Dissertations and Culminating Projects

Autistic youth are at an elevated risk of developing anxiety. Overcontrol, or excessive self-control, shares similar clinical challenges (i.e. rigidity, social perfection) that are often associated with anxiety. Executive functioning (EF) is well-established as being positively associated with anxiety. Taking all this into account, it was predicted that EF may serve as a moderator to the relationship between overcontrol and anxiety. Using both parent and child responses to the Overcontrol in Youth Checklist, Multidimensional Anxiety Scale for Children and Behavior Rating Inventory of Executive Function-2, this current study explored how overcontrol and anxiety are related. Further, it tested the role …

Reinvestigating The Role Of Observational Contexts In Learning Hard Nouns, Kosta Boskovic, Sumarga Suanda

Honors Scholar Theses

Developmental scientists have long been fascinated by children’s prodigious word learning capacities and by patterns in the composition of children’s early vocabularies that reveal that certain types of words are learned earlier than others. One notable pattern has been that words that denote more abstract concepts (e.g., “story”) are learned later than words that denote concrete objects (e.g., “ball”). In fact, prior studies have concluded that different kinds of abstract words, including nouns whose referents are not whole, concrete objects (or “hard nouns”; Kako, 2005), are not learnable from observational contexts alone and necessitate linguistic information to be learned. In …

Sex And Age Differences In Near-Infrared Spectroscopy Responses And The Resulting Influences On Cognition, Miranda K. Traylor

Graduate Theses and Dissertations (2019 - present)

Vascular dysfunction is the earliest known marker of neurodegeneration. However, limited research has been conducted to determine if changes in peripheral vascular function track differences in brain health. Therefore, the purpose was to determine if previously reported sex differences in near-infrared spectroscopy (NIRS) vascular occlusion test (VOT) parameters persist across the lifespan and if these differences track age- and sex-related differences in a cognitive task. Ninety-nine healthy, cognitively intact adults (50 women, 49 men) across the adult lifespan (19-81 yrs) were used for analysis. The combination of NIRS-VOT was used to quantify microvascular function. Cognition was defined as the time …

Social Support In An Internet Weight Loss Community, Richard Freund, Marta Favara, Catherine Porter, Jere Behrman

Faculty, Staff and Student Publications

Many low- and middle-income countries have introduced public works programs (PWPs) to fight poverty. This paper provides the first evidence that children from families who benefit from PWPs show increased foundational cognitive skills. The results, based on unique tablet-based data collected as part of a long-standing longitudinal survey, show positive associations between participation in the Productive Safety Net Programme (PSNP) in Ethiopia during childhood with long-term memory and implicit learning, and suggestive evidence for working memory. These associations appear to be strongest for children whose households were still PSNP participants in the year of data collection. Evidence suggests that the …

Ai-Powered Information Retrieval In Meeting Records And Transcripts Enhancing Efficiency And User Experience, Srushti Nitin Ghadge

Theses and Dissertations

This study compares the traditional search methods, which is to search from video recordings of the meetings by moving the slider back and forth or by keyword search in transcripts versus integrated AI video plus transcript search. Based on the previous test results, we introduced some human-centric design features to the AI and built a new enhanced AI search tool for information retrieval. For search technique efficiency testing, the method had two set of experiments. The first results of the experiment showed that AI-based search algorithms were more accurate and faster than conventional search approaches. Participants were also happier with …

Alterations In Brain Morphometric Networks And Their Relationship With Memory Dysfunction In Patients With Type 2 Diabetes Mellitus, Rye Young Kim, Yoonji Joo, Eunji Ha, Haejin Hong, Chaewon Suh, Youngeun Shim, Hyeonji Lee, Yejin Kim, Jae-Hyoung Cho, Sujung Yoon, In Kyoon Lyoo

Faculty, Staff and Student Publications

Cognitive dysfunction, a significant complication of type 2 diabetes mellitus (T2DM), can potentially manifest even from the early stages of the disease. Despite evidence of global brain atrophy and related cognitive dysfunction in early-stage T2DM patients, specific regions vulnerable to these changes have not yet been identified. The study enrolled patients with T2DM of less than five years’ duration and without chronic complications (T2DM group, n=100) and demographically similar healthy controls (control group, n=50). High-resolution T1-weighted magnetic resonance imaging data were subjected to independent component analysis to identify structurally significant components indicative of morphometric networks. Within these networks, the groups’ …

A Model Of Evidence-Based Practice For Law Schools To Improve System Outcomes, Chance Meyer

St. Mary's Law Journal

No abstract provided.

Identifying Covariate-Related Subnetworks For Whole-Brain Connectome Analysis, Shuo Chen, Yuan Zhang, Qiong Wu, Chuan Bi, Peter Kochunov, L Elliot Hong

Faculty, Staff and Student Publications

Whole-brain connectome data characterize the connections among distributed neural populations as a set of edges in a large network, and neuroscience research aims to systematically investigate associations between brain connectome and clinical or experimental conditions as covariates. A covariate is often related to a number of edges connecting multiple brain areas in an organized structure. However, in practice, neither the covariate-related edges nor the structure is known. Therefore, the understanding of underlying neural mechanisms relies on statistical methods that are capable of simultaneously identifying covariate-related connections and recognizing their network topological structures. The task can be challenging because of false-positive …

Does Pleasurable Music Indirectly Better Learning?: A Multimodal Approach, Elizabeth Anna Roeglin

Undergraduate Honors Papers

Recent research has shown that musical pleasure is due to the combination of uncertainty and surprise a musical piece elicits. Additionally, research has demonstrated that music influences arousal and mood, both of which affect learning. However, current research has not adequately tested whether pleasurable music indirectly improves learning by influencing mood/arousal. This study attempts to do so. Twenty-seven participants completed a survey that included the Barcelona Music Reward Questionnaire. Eighteen participants, whose scores demonstrated that they feel emotion-evoking and/or mood-regulatory pleasure from listening to music, came in for further testing. These participants experienced a music condition, in which they listened …

First-Year Engineering Students And Genai: Experience, Attitudes, Trust, And Ethics., Elisabeth Thomas, Cenetria Crockett, Campbell Rightmyer Bego

Undergraduate Research Events

Generative AI (GenAI) has the potential to benefit student learning by offering personalized feedback, idea generation, research, and analysis support, writing aid, and administrative support (Chan and Hu, 2023; Zhang, 2023). However, if used inappropriately, the same tools can lead to false/biased content creation and reduced ethical awareness leading to possible academic dishonesty and privacy issues (Schwartz, 2016; Wu, 2023). At this early stage, ethical standards and professorial guidance are unavailable, so it is important to understand what students are thinking about the recent technologies (Shen et al., 2013). Spring 2023 survey results revealed that some students used ChatGPT, a …

Unveiling Gene Interactions In Alzheimer's Disease By Integrating Genetic And Epigenetic Data With A Network-Based Approach, Keith L Sanders, Astrid M Manuel, Andi Liu, Boyan Leng, Xiangning Chen, Zhongming Zhao

Faculty, Staff and Student Publications

Alzheimer’s Disease (AD) is a complex disease and the leading cause of dementia in older people. We aimed to uncover aspects of AD’s pathogenesis that may contribute to drug repurposing efforts by integrating DNA methylation and genetic data. Implementing the network-based tool, a dense module search of genome-wide association studies (dmGWAS), we integrated a large-scale GWAS dataset with DNA methylation data to identify gene network modules associated with AD. Our analysis yielded 286 significant gene network modules. Notably, the foremost module included the BIN1 gene, showing the largest GWAS signal, and the GNAS gene, the most significantly hypermethylated. We conducted …

Improving Educational Delivery And Content In Juvenile Detention Centers, Yomna Elmousalami

Undergraduate Research Symposium

Students in juvenile detention centers have the greatest need to receive improvements in educational delivery and content; however, they are one of the “truly disadvantaged” populations in terms of receiving those improvements. This work presents a qualitative data analysis based on a focus group meeting with stakeholders at a local Juvenile Detention Center. The current educational system in juvenile detention centers is based on paper worksheets, single-room style teaching methods, outdated technology, and a shortage of textbooks and teachers. In addition, detained students typically have behavioral challenges that are deemed "undesired" in society. As a result, many students miss classes …

Global Strategies For Addressing Communication Disorders In Justice-Involved Youth, Sophia Martinez, Anne Marie Perrotti, Brooke Baker, Allison Chappell

Undergraduate Research Symposium

Throughout all stages of processing, most juveniles who encounter the justice system demonstrate cognitive-communicative difficulties (CCDs). Empirical evidence reveals that 19-22% of female and 28-38% of male youth offenders, culminating in approximately 50-60% of youth offenders, demonstrate language disorders that require intervention, but most have never received services (Snow et al., 2014; Winstanley et al., 2021). Speech-language pathologists (SLPs) are communication experts certified to assess and treat CCDs. While nations abroad recognize the value of SLP involvement in all stages of processing for justice-involved youth (JIY), America lags in utilizing SLPs to improve JIY outcomes and lower youth's risk of …

Opportunities And Challenges For The Use Of Deep Brain Stimulation In The Treatment Of Refractory Major Depression, Prashin Unadkat, Joao Quevedo, Jair Soares, Albert Fenoy

Faculty, Staff and Student Publications

Major Depressive Disorder continues to remain one of the most prevalent psychiatric diseases globally. Despite multiple trials of conventional therapies, a subset of patients fail to have adequate benefit to treatment. Deep brain stimulation (DBS) is a promising treatment in this difficult to treat population and has shown strong antidepressant effects across multiple cohorts. Nearly two decades of work have provided insights into the potential for chronic focal stimulation in precise brain targets to modulate pathological brain circuits that are implicated in the pathogenesis of depression. In this paper we review the rationale that prompted the selection of various brain …

A Novel Spatiotemporal Graph Convolutional Network Framework For Functional Connectivity Biomarkers Identification Of Alzheimer’S Disease, Ying Zhang, Le Xue, Shuoyan Zhang, Jiacheng Yang, Qi Zhang, Min Wang, Luyao Wang, Mingkai Zhang, Jiehui Jiang, Yunxia Li

Faculty, Staff and Student Publications

BACKGROUND: Functional connectivity (FC) biomarkers play a crucial role in the early diagnosis and mechanistic study of Alzheimer's disease (AD). However, the identification of effective FC biomarkers remains challenging. In this study, we introduce a novel approach, the spatiotemporal graph convolutional network (ST-GCN) combined with the gradient-based class activation mapping (Grad-CAM) model (STGC-GCAM), to effectively identify FC biomarkers for AD.

METHODS: This multi-center cross-racial retrospective study involved 2,272 participants, including 1,105 cognitively normal (CN) subjects, 790 mild cognitive impairment (MCI) individuals, and 377 AD patients. All participants underwent functional magnetic resonance imaging (fMRI) and T1-weighted MRI scans. In this study, …

Is Visual Perception Required For Dreaming?, Mackenzie Lesczcynski

D.U.Quark

No abstract provided.

The Five Foundational Factors To Building Resilience In Young People, Taylor Teichman

National Youth Advocacy & Resilience Conference

The Trauma Skilled Approach when working with young people begins with the mindset-shifting question, “what happened to you?” This workshop will explore step 2 of the Trauma Skilled model: Connection, Security (Belonging), Achievement, Autonomy and Fulfillment as the five foundational factors to building resilient youth. There will be opportunities to work in small groups reviewing Purposeful Practices that can be replicated by participants in their own practice.

Tunisian Democracy At A Crossroads: A Comparative Analysis Of Beji Caid Essebsi And Kais Saied Regimes, Nizar Lukman

Jurnal Politik

As a new democracy, Tunisia is quite vulnerable to democratic erosion. The implementation of democracy in the country was quite effective during the leadership of Beji Caid Essebsi, resulting in a high democracy index driven by various policies that supported the implementation of this system. However, Tunisia’s quality of democracy significantly declined since President Kais Saied took power in 2019. The dissolution of Parliament, the prime minister's dismissal, the introduction of freedom of expression for council members, and unilateral electoral reforms aimed at consolidating his power are some cases of proof. This pattern raises questions about the recurring nature of …