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Articles 61 - 82 of 82
Full-Text Articles in Cognitive Neuroscience
The Influence Of The Gut Microbiota And Alzheimer’S Disease, Mackenzie E. Gibbs
The Influence Of The Gut Microbiota And Alzheimer’S Disease, Mackenzie E. Gibbs
Honors Theses
Alzheimer’s disease is a neurodegenerative disease that effects the neurons in the brain and can lead to cognitive impairment and death. The main aspects of Alzheimer’s research focus on genetic factors contributing to the disease, but the microbiota gut-brain-axis may be playing a potential role in Alzheimer’s development. The human body has an abundant microbiota to help our bodies carry out daily needs, but the amount of microbiota present has to be kept in a tolerance range by the immune system. If there is an increase in the amount of gut microbiota present in the human body, inflammation can occur …
Pornography: Social, Emotional And Mental Implications Among Adolescents, William Kelly Canady
Pornography: Social, Emotional And Mental Implications Among Adolescents, William Kelly Canady
National Youth Advocacy & Resilience Conference
This presentation will explain the historical development of pornography. It will highlight four segments: 1- Porn’s impact on brain development of reward pathways, ultimately increasing the appetite for more porn. 2- Porn can be a false substitute for real intimacy, resulting in decreased sexual satisfaction with a real person and increased verbal and physical aggression. 3- Porn promotes sex trafficking, promotes multiple sex partners and reduced STD prevention. 4- A review of interventions available to assist clients in navigating a lifestyle away from pornography.
White-Matter Tract Connecting Anterior Insula To Nucleus Accumbens Predicts Greater Future Motivation In Adolescents, Josiah K. Leong, Tiffany C. Ho, Natalie L. Colich, Lucinda Sisk, Brian Knutson, Ian H. Gotlib
White-Matter Tract Connecting Anterior Insula To Nucleus Accumbens Predicts Greater Future Motivation In Adolescents, Josiah K. Leong, Tiffany C. Ho, Natalie L. Colich, Lucinda Sisk, Brian Knutson, Ian H. Gotlib
Psychological Science Faculty Publications and Presentations
The motivation to approach or avoid incentives can change during adolescence. Advances in neuroimaging allow researchers to characterize specific brain circuits that underlie these developmental changes. Whereas activity in the nucleus accumbens (NAcc) can predict approach toward incentive gain, activity in anterior insula (AIns) is associated with avoidance of incentive loss. Recent research characterized the structural white-matter tract connecting the two brain regions, but the tract has neither been characterized in adolescence nor linked to functional activity during incentive anticipation. In this study, we collected diffusion MRI and characterized the tract connecting the AIns to the NAcc for the first …
Cognitive Changes Caused By Lps-Induced Neuroinflammation, Nancy De La Torre
Cognitive Changes Caused By Lps-Induced Neuroinflammation, Nancy De La Torre
Dissertations, Theses, and Capstone Projects
The brain performs cognitive processes finely orchestrated by timely precise action of neurons. Neurons functioning at their highest standard communicate with each other through perfectly functioning synapses. Microglia, as part of the immune system assist synaptic processing and have the ability to affect cognition. Indeed, microglia play a role in cognition. To investigate the link between microglia and cognition we utilized lipopolysaccharide (LPS) to pharmacologically activate microglia. LPS, normally present in the environment on the wall of Gram-negative bacteria is a pharmacological agent used to cause microglia activation in mice. LPS is a typical model to study changes induced by …
Caffeine Modulation Of Attention And Focus In Task Performance, Claudia R. Berger
Caffeine Modulation Of Attention And Focus In Task Performance, Claudia R. Berger
Dissertations, Theses, and Capstone Projects
Caffeine has been a heavily researched drug for decades given its prevalence in global consumption, as well as its large impacts on metabolic and executive function research alike. The present study aims to combine a behavioral study (Experiment 1) with a feasibility study (Experiment 2) to test the impacts of variable caffeine consumption on task performance. For both studies, participants filled out a questionnaire regarding caffeine use. Experiment 1 examined whether caffeine modulated attention in an online behavioral task in which participants were asked to identify a target (e.g., female “ahpa”). Participants were tested twice once after consuming 12 ounces …
Influence Of Demographic, Clinical, And Neuroimaging Variables On Neuropsychological Recovery Trajectories After Moderate-To-Severe Traumatic Brain Injury, Elizabeth J. Leif
Influence Of Demographic, Clinical, And Neuroimaging Variables On Neuropsychological Recovery Trajectories After Moderate-To-Severe Traumatic Brain Injury, Elizabeth J. Leif
Dissertations, Theses, and Capstone Projects
Traumatic brain injury (TBI) is prevalent in people of all ages and all walks of life. Cognitive deficits are common after TBI and the recovery patterns are known to be variable across individuals. The current study investigates diffuse axonal injury (DAI), cerebral blood flow (CBF), and focal lesions, in addition to post-traumatic amnesia (PTA), as possible predictors of cognitive trajectory in moderate-to-severe TBI patients. Cognitive trajectory was evaluated with a battery of neuropsychological tests that were combined into three domains: processing speed, verbal learning, and executive function. Patients (N=44) were tested three times at 3, 6, and 12 months post-injury. …
Effects Of Mindfulness Meditation On Selective, Sustained Attention, Brain Neural Oscillations, And Short-Term Memory, Anamaria Guzman
Effects Of Mindfulness Meditation On Selective, Sustained Attention, Brain Neural Oscillations, And Short-Term Memory, Anamaria Guzman
Honors Program: Senior Projects (Public)
The following extended literature review and research proposal study started initially as a complete research proposal but, due to the challenges COVID-19 has brought, it has become a stand-alone piece of work without data collection. The goal is to synthesize a broad range of literature and previous research on mindfulness meditation and its effects on attention, memory, and brain activity and thus, offering a new perspective and a proposed research path on this subject. This proposed research study, besides previous studies, indicates that mindfulness meditation is expected to improve and enhance selective and sustained attention, which results in better attentional …
Prediction Of Alzheimer’S Disease-Specific Phospholipase C Gamma-1 Snv By Deep Learning-Based Approach For High-Throughput Screening, Sung Hyun Kim, Sumin Yang, Key Hwan Lim, Euiseng Ko, Hyun Jun Jang, Mingon Kang, Pann Ghill Suh, Jae Yeol Joo
Prediction Of Alzheimer’S Disease-Specific Phospholipase C Gamma-1 Snv By Deep Learning-Based Approach For High-Throughput Screening, Sung Hyun Kim, Sumin Yang, Key Hwan Lim, Euiseng Ko, Hyun Jun Jang, Mingon Kang, Pann Ghill Suh, Jae Yeol Joo
Computer Science Faculty Research
© 2021 National Academy of Sciences. All rights reserved. Exon splicing triggered by unpredicted genetic mutation can cause translational variations in neurodegenerative disorders. In this study, we discover Alzheimer’s disease (AD)-specific single-nucleotide variants (SNVs) and abnormal exon splicing of phospholipase c gamma-1 (PLCγ1) gene, using genome-wide association study (GWAS) and a deep learning-based exon splicing prediction tool. GWAS revealed that the identified single-nucleotide variations were mainly distributed in the H3K27ac-enriched region of PLCγ1 gene body during brain development in an AD mouse model. A deep learning analysis, trained with human genome sequences, predicted 14 splicing sites in human PLCγ1 gene, …
Practical Recommendations For Timely, Accurate Diagnosis Of Symptomatic Alzheimer’S Disease (Mci And Dementia) In Primary Care: A Review And Synthesis, J. L. Liss, S. Seleri Assunção, Jeffrey Cummings, A. Atri, D. S. Geldmacher, S. F. Candela, D. P. Devanand, H. M. Fillit, J. Susman, J. Mintzer, T. Bittner, S. A. Brunton, D. R. Kerwin, W. C. Jackson, G. W. Small, G. T. Grossberg, C. K. Clevenger, V. Cotter, R. Stefanacci, A. Wise-Brown, M. N. Sabbagh
Practical Recommendations For Timely, Accurate Diagnosis Of Symptomatic Alzheimer’S Disease (Mci And Dementia) In Primary Care: A Review And Synthesis, J. L. Liss, S. Seleri Assunção, Jeffrey Cummings, A. Atri, D. S. Geldmacher, S. F. Candela, D. P. Devanand, H. M. Fillit, J. Susman, J. Mintzer, T. Bittner, S. A. Brunton, D. R. Kerwin, W. C. Jackson, G. W. Small, G. T. Grossberg, C. K. Clevenger, V. Cotter, R. Stefanacci, A. Wise-Brown, M. N. Sabbagh
School of Medicine Faculty Research
The critical role of primary care clinicians (PCCs) in Alzheimer’s disease (AD) prevention, diagnosis and management must evolve as new treatment paradigms and disease-modifying therapies (DMTs) emerge. Our understanding of AD has grown substantially: no longer conceptualized as a late-in-life syndrome of cognitive and functional impairments, we now recognize that AD pathology builds silently for decades before cognitive impairment is detectable. Clinically, AD first manifests subtly as mild cognitive impairment (MCI) due to AD before progressing to dementia. Emerging optimism for improved outcomes in AD stems from a focus on preventive interventions in midlife and timely, biomarker-confirmed diagnosis at early …
Alzgps: A Genome-Wide Positioning Systems Platform To Catalyze Multi-Omics For Alzheimer’S Drug Discovery, Yadi Zhou, Jiansong Fang, Lynn M. Bekris, Yeon Heon Kim, Andrew A. Pieper, James B. Leverenz, Jeffrey Cummings, Feixiong Cheng
Alzgps: A Genome-Wide Positioning Systems Platform To Catalyze Multi-Omics For Alzheimer’S Drug Discovery, Yadi Zhou, Jiansong Fang, Lynn M. Bekris, Yeon Heon Kim, Andrew A. Pieper, James B. Leverenz, Jeffrey Cummings, Feixiong Cheng
School of Medicine Faculty Research
Background: Recent DNA/RNA sequencing and other multi-omics technologies have advanced the understanding of the biology and pathophysiology of AD, yet there is still a lack of disease-modifying treatments for AD. A new approach to integration of the genome, transcriptome, proteome, and human interactome in the drug discovery and development process is essential for this endeavor. Methods: In this study, we developed AlzGPS (Genome-wide Positioning Systems platform for Alzheimer’s Drug Discovery, https://alzgps.lerner.ccf.org), a comprehensive systems biology tool to enable searching, visualizing, and analyzing multi-omics, various types of heterogeneous biological networks, and clinical databases for target identification and development of effective prevention …
Recallable But Not Recognizable: The Influence Of Semantic Priming In Recall Paradigms, Jason D. Ozubko, Lindsey Ann Sirianni, Fahad N. Ahmad, Colin M. Macleod, Richard Addante
Recallable But Not Recognizable: The Influence Of Semantic Priming In Recall Paradigms, Jason D. Ozubko, Lindsey Ann Sirianni, Fahad N. Ahmad, Colin M. Macleod, Richard Addante
Psychology Faculty Publications
When people can successfully recall a studied word, they should be able to recognize it as having been studied. In cued-recall paradigms, however, participants sometimes correctly recall words in the presence of strong semantic cues but then fail to recognize those words as actually having been studied. Although the conditions necessary to produce this unusual effect are known, the underlying neural correlates have not been investigated. Across five experiments, involving both behavioral and electrophysiological methods (EEG), we investigated the cognitive and neural processes that underlie recognition failures. Experiments 1 and 2 showed behaviorally that assuming that recalled items can be …
Neural Correlates Of The Dunning-Kruger Effect, Alana Muller, Lindsey A. Sirianni, Richard Addante
Neural Correlates Of The Dunning-Kruger Effect, Alana Muller, Lindsey A. Sirianni, Richard Addante
Psychology Faculty Publications
The Dunning-Kruger effect (DKE) is a metacognitive phenomenon of illusory superiority in which individuals who perform poorly on a task believe they performed better than others, yet individuals who performed very well believe they under-performed compared to others. This phenomenon has yet to be directly explored in episodic memory, nor explored for physiological correlates or reaction times. We designed a novel method to elicit the DKE via a test of item recognition while electroencephalography (EEG) was recorded. Throughout the task, participants were asked to estimate the percentile in which they performed compared to others. Results revealed participants in the bottom …
Diversifying Participation: The Rarity Of Reporting Racial Demographics In Neuroimaging Research, Madeline Goldfarb
Diversifying Participation: The Rarity Of Reporting Racial Demographics In Neuroimaging Research, Madeline Goldfarb
Pitzer Senior Theses
Background: Functional neuroimaging techniques have been instrumental to progress in the cognitive and behavioral sciences; however, their increasing prevalence has evoked conversations concerning limitations associated with reproducibility and bias (Gilmore et al., 2017). While the literature has explored several mechanisms driving issues of replicability, few discussions have considered the effects of confounding social and environmental variables such as age, sex, socioeconomic status, and race (Sauce & Matzel, 2013). The prevailing racial, cultural, and socioeconomic bias in scientific research and the methodological limitations of EEG perpetuate racial and ethnic homogeneity in participation, eliciting qualms regarding the generalizability of findings (Henrich et …
Understanding Stability In Cognitive Neuroscience Through Hacking's Lens, Jacqueline A. Sullivan
Understanding Stability In Cognitive Neuroscience Through Hacking's Lens, Jacqueline A. Sullivan
Philosophy Publications
Ian Hacking instigated a revolution in 20th century philosophy of science by putting experiments (“interventions”) at the top of a philosophical agenda that historically had focused nearly exclusively on representations (“theories”). In this paper, I focus on a set of conceptual tools Hacking (1992) put forward to understand how laboratory sciences become stable and to explain what such stability meant for the prospects of unity of science and kind discovery in experimental science. I first use Hacking’s tools to understand sources of instability and disunity in rodent behavioral neuroscience. I then use them to understand recent grass-roots collaborative initiatives aimed …
Genus Applications For Alzheimer's Disease Pathology, Whitney L Carter
Genus Applications For Alzheimer's Disease Pathology, Whitney L Carter
Undergraduate Arts and Research Showcase
Estimates vary, but it is thought that 5.5 million Americans age 60 and up may be living with Alzheimer’s diseases (AD). AD is the most common type of dementia and is characterized by a decline in episodic memories, long-term memory, language, attention, and personality changes. The first symptoms can vary, but for most people memory is the first capacity to become impaired. However, symptoms can also be a decline in non-memory aspects of cognition like work-finding, vision/spatial issues, and impaired reasoning or judgement. AD is identified mainly by two histopathological features: extracellular plague of amyloid-beta protein and intracellular neuronal tangles …
Hippocampal Learning And Number Processing In Young Children, Thomas R Pilger, Manal Zafar, Nicholas Hindy
Hippocampal Learning And Number Processing In Young Children, Thomas R Pilger, Manal Zafar, Nicholas Hindy
Undergraduate Arts and Research Showcase
Children can enumerate the number of objects in a configuration in different ways: either through numerical processing or pattern recognition. An example of numerical processing is a child counting or subitizing a small number of disorganized blocks. This numerical cognition is related to neural processes in the intraparietal sulcus (IPS). Moreover, a child might be able to instantly know the value a configuration represents. For example, a child could instantly recognize a pattern seen on dice and know what value it represents. Recognizing previously seen patterns is related to neural processes in the hippocampus. Using fMRI and an at-home training …
Cognitive Abilities In Hearing Loss: Perceived And Performance Abilities Of Adults Related To Attention, Memory, And Social Cognition, Karah Gottschalk
Cognitive Abilities In Hearing Loss: Perceived And Performance Abilities Of Adults Related To Attention, Memory, And Social Cognition, Karah Gottschalk
Theses and Dissertations--Gerontology
Hearing loss is the most common sensory deficit noted in aging adults. It is commonly known to reduce an individual’s ability to detect, identify, and localize sounds and speech and to cause issues in communication. However, there are other less commonly discussed impacts that hearing loss has beyond the auditory system. Literature suggests a correlation between hearing loss and cognition in aging adults. Similar to hearing loss, the domains of cognition experience performance and functional changes across the life span. In an aging adult, changes related to cognition are also suggested to be associated with hearing loss. This study aimed …
Subjective Value Of Previous Item Is Encoded During Valuation In Event-Related Potentials, Madeline Valdez
Subjective Value Of Previous Item Is Encoded During Valuation In Event-Related Potentials, Madeline Valdez
CMC Senior Theses
Research in economics and neuroscience has shown that an item’s value is subjective, in that it depends on the circumstances and preferences of the observer rather than the item’s inherent properties. In particular, value can be affected by the context in which an item is presented: for example, an apple might look more appealing if it is offered right after something less tasty, such as broccoli, than after something tempting like chocolate cake. Consistent with this idea, studies using invasive electrophysiology have shown that value signals corresponding to the current item are modulated by the value of the previously encountered …
Animal Sentience: History, Science, And Politics, Andrew N. Rowan, Joyce M. D'Silva, Ian J.H. Duncan, Nicholas Palmer
Animal Sentience: History, Science, And Politics, Andrew N. Rowan, Joyce M. D'Silva, Ian J.H. Duncan, Nicholas Palmer
Animal Sentience
This target article has three parts. The first briefly reviews the thinking about nonhuman animals’ sentience in the Western canon: what we might know about their capacity for feeling, leading up to Bentham’s famous question “can they suffer?” The second part sketches the modern development of animal welfare science and the role that animal-sentience considerations have played therein. The third part describes the launching, by Compassion in World Farming, of efforts to incorporate animal sentience language into public policy and regulations concerning human treatment of animals.
When The Brain Plays A Game: Neural Responses To Visual Dynamics During Naturalistic Visual Tasks, Jason Ki
When The Brain Plays A Game: Neural Responses To Visual Dynamics During Naturalistic Visual Tasks, Jason Ki
Dissertations and Theses
Many day-to-day tasks involve processing of complex visual information in a continuous stream. While much of our knowledge on visual processing has been established from reductionist approaches in lab-controlled settings, very little is known about the processing of complex dynamic stimuli experienced in everyday scenarios. Traditional investigations employ event-related paradigms that involve presentation of simple stimuli at select locations in visual space and discrete moments in time. In contrast, visual stimuli in real-life are highly dynamic, spatially-heterogeneous, and semantically rich. Moreover, traditional experiments impose unnatural task constraints (e.g., inhibited saccades), thus, it is unclear whether theories developed under the reductionist …
Investigating The Role Of Attention And Memory In Visual Exploration, Jacob E. Suffridge
Investigating The Role Of Attention And Memory In Visual Exploration, Jacob E. Suffridge
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research investigates the role that attention and memory plays in visual exploration through a comprehensive analysis of eye movement and behavioral data, alongside incorporation of a computational saliency model. The purpose of this project is to quantify differences in visual attention over repeated viewings of natural scene images by employing a free viewing task that contains a memory component. In Chapter 2, we explore the task’s behavioral data showing that participants generally memorize our images well before we investigate the effect of numerous object and individual feature inclusion. In Chapter 3, we develop four primary methods to quantify visual …
How Does Direct Volunteering Affect The Onset Of Alzheimer’S Dementia In Elderly Patients With Preexisting Cardiac Comorbidities?, Sneha R. Gade
How Does Direct Volunteering Affect The Onset Of Alzheimer’S Dementia In Elderly Patients With Preexisting Cardiac Comorbidities?, Sneha R. Gade
Undergraduate Research Posters
Alzheimer's Dementia is a disease that affects memory, thinking, and behavior. The Alzheimer's Association reported Alzheimer's as the sixth-leading cause of death in the United States, and a cure does not exist. Donepezil, a cholinesterase inhibitor drug, is frequently prescribed to treat Alzheimer's disease. Still, patients must continuously take the medication for years to receive any measurable improvement in quality of life after developing Alzheimer's Dementia. Further, research shows prolonged use of Donepezil can lead to other health problems, such as QTc prolongation, for cardiac disease patients. Therefore, the effectiveness of non-drug interventions, such as volunteering to prevent the disease's …