Other Neuroscience and Neurobiology Commons^™

Reversible Emerging Neuropsychological Pattern In Chronic Intractable Migraine, Tanner Williford, Pooja Chemiti, Mason Allen, Brandon Burrell, Stephanie Chavez, Jude Emego, Bridger Gunter, Matthew Huertas, Matthew Jennings, Roshni Jogin, Paulo Kelly, Laura Minor, Steven Salazar, Jameson Williams, David W. Sant, John A. Kriak, Kyle B. Bills

Annual Research Symposium

No abstract provided.

Enhancing The Quality Of Life For Senior Citizens: A Facilitator’S Guidebook For Mindful Music And Movement, Shannon Sexton

Mindfulness Studies Theses

Music appreciation and enjoyment enhance well-being throughout the lifespan. The challenges and constraints that people experience as they age can lead to lack of access to music, decreased physical activity, and fewer avenues for creative expression. Group music and movement interventions created for older populations offer opportunities for social connection and improved quality of life. Mindful practices add further benefit when combined with these interventions. Current available programs are scarce and most often do not encompass mixed modalities. In addition, the benefits of these programs do not show long-term sustainability. The purpose of this thesis is to explore the effects …

Higher Sexual Excitation Is Associated With An Increase In Sex-Linked Substance Use In Women With A History Of Unwanted Sexual Contact, Harper R. Jones, Tierney K. Lorenz

Center for Brain, Biology, and Behavior: Faculty Publications

Survivors of unwanted sexual contact have an increased likelihood of using substances in sexual situations, which puts them at heightened risk for intoxication-related harms. Separately, research has indicated that women may intentionally use substances in sexual situations to either enhance pleasure (i.e., increase sexual excitation) and/or reduce sexual anxiety or shame (i.e., reduce sexual inhibition), a phenomenon termed sex-linked substance use (SLSU). A predominant assumption in the literature is that women with unwanted sex histories are more likely to disengage during sex, suggesting greater inhibition-related SLSU; however, there is little prior research directly examining if women who have unwanted sex …

Pre–Post Intervention Exploring Cognitive Function And Relationships With Weight Loss, Intervention Adherence And Dropout, Amanda N. Szabo-Reed, Laura E. Martin, Cary R. Savage, Richard A. Washburn, Joseph E. Donnelley

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: To evaluate the association between baseline cognitive function, intervention dropout, adherence and 3-month weight loss (WL) when controlling for confounding demographic variables.

Methods: 107 (Mage = 40.9 yrs.), BMI in the overweight and obese range (BMI = 35.6 kg/m2), men (N = 17) and women (N = 90) completed a 3-month WL intervention. Participants attended weekly behavioral sessions, comply with a reduced calorie diet, and complete 100 min of physical activity (PA)/wk. Cognitive function tasks at baseline included Flanker (attention), Stroop (executive control) and working memory, demographics, body weight and cardiovascular fitness were assessed at baseline. Session attendance, adherence …

Concussion-Related Disruptions To Hub Connectivity In The Default Mode Network Are Related To Symptoms And Cognition, Heather C. Bouchard, Kate L. Higgins, Grace Amadon, Julia M. Laing-Young, Arthur C. Maerlender, Seima Al-Momani, Maital Neta, Cary R. Savage, Douglas H. Schultz

Center for Brain, Biology, and Behavior: Faculty Publications

Concussions present with a myriad of symptomatic and cognitive concerns; however, the relationship between these functional disruptions and the underlying changes in the brain are not yet well understood. Hubs, or brain regions that are connected to many different functional networks, may be specifically disrupted after concussion. Given the implications in concussion research, we quantified hub disruption within the default mode network (DMN) and between the DMN and other brain networks. We collected resting-state functional magnetic resonance imaging data from collegiate student-athletes (n = 44) at three timepoints: baseline (prior to beginning their athletic season), acute post-injury (approximately 48 hours …

Manydogs Project: A Big Team Science Approach To Investigating Canine Behavior And Cognition, Daniela Alberghina, Emily E. Bray, Daphna Buchsbaum, Sarah- Elizabeth Byosiere, Julia Espinosa, Gitanjali E. Gnanadesikan, C.-N. Alexandrina Guran, Elizabeth Hare, Daniel J. Horschler, Ludwig Huber, Valerie A. Kuhlmeier, Evan L. Maclean, Madeline H. Pelgrim, Bryan Perez, Dana Ravid-Schurr, Liza Rothkoff, Courtney L. Sexton, Zachary A. Silver, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty Publications

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. Although the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw because of the relatively small sample sizes used, along with the exceptional diversity …

Negative Social Media And Its Influence On Athlete's Performance, Bernd R. Huber

Cal Poly Humboldt theses and projects

This study aimed to investigate the potential impact of negative social media content on athletes' cortisol levels and subsequent performance. The study focused on the change in cortisol levels and differences in free throw performance, based on previous research findings. We hypothesized that negative social media postings would increase the stress experienced by student-athletes, resulting in elevated cortisol levels and decreased performance. Additionally, participants (n = 8) completed a questionnaire to examine the interaction between preexisting fear and the biological stress response. Contrary to expectations, there was no significant change in stress response, and negative postings did not have …

Meta-Analytic Connectivity Modelling Of Healthy Swallowing, Chris R. Tilton

Honors Theses and Capstones

A quantitative, voxel-wise meta-analysis was performed to investigate the brain regions involved in healthy human swallowing. Studies included in the meta-analysis (1) examined water swallowing, saliva swallowing, or both, (2) included healthy, normal subjects, and (3) reported stereotaxic brain activation coordinates in standard space. Following these criteria, a systematic literature review identified 8 studies that met the criteria. An activation likelihood estimation (ALE) meta-analysis and meta-analytic connectivity modelling (MACM) analysis were performed with BrainMap software. Ten clusters with high activation likelihood were found in the bilateral precentral gyri, right insula, left declive, right medial frontal gyrus, right dorsal nucleus of …

Ultrastructural Correlates Of Axons And Synapses Belonging To Different Circuits In Ferret Primary Visual Cortex, Anjelique Sawh

Dissertations and Theses

The goal of this study was to determine differences in distinctive layers of mammalian primary visual cortex through analysis of their ultrastructural characteristics. Characterizing brain circuitry using 3-dimensional reconstruction of electron microscopy images, and subsequent ultrastructural analysis of axonal populations provides us with a better understanding of the connectivity of the neural circuits. By quantifying ultrastructural differences in axonal processes such as synaptic densities, types of synapses and their post-synaptic densities (PSDs), mitochondrial volumes, synaptic vesicle aggregates, dendritic targets, and bouton volumes, we aimed to understand whether differences in anatomical specializations among different cortical layers could underlie differences in function …

Alzheimer’S Disease Genetics And Short-Chain Fatty Acid Treatment In Studies Of The Murine Gut Microbiome, Diana Zajac

Theses and Dissertations--Physiology

Elucidating the relationship of the gut microbiome in Alzheimer's Disease (AD) risk and pathogenesis is an area of intense interest. Since 60 to 80% of AD risk is related to genetics and APOE alleles represent the most impactful genetic risk factors for AD, their mechanism(s) of action are under intense scrutiny.

First, I conducted a study on APOE targeted replacement mice to investigate the impact of APOE alleles on the murine gut microbiome. The relative abundance of bacteria from the family Ruminococacceae and related genera increased with APOE2 status. The relative abundance of the class Erysipelotrichia increased with APOE4 status, …

Sex Differences In Endothelial Function, Metabolism, And Sleep: Responses To Disrupted Circadian Rhythms, Olga Hecmarie Meléndez-Fernández

Graduate Theses, Dissertations, and Problem Reports (ETD)

Circadian rhythms are endogenous cycles that recur approximately every 24 h, and manifest in virtually every physiological and behavioral process among the vast majority of organisms. These rhythms, sustained by the central circadian clock, the suprachiasmatic nucleus (SCN) of the hypothalamus, allow for optimal timing of biological processes that ensure organisms’ homeostasis, and are entrained to precisely 24 h by daily exposure to light. Disruption of the molecular mechanisms that drive these rhythms have negative consequences on physiology and behavior that may impair survival. The molecular mechanisms that underlie these effects are widely studied and linked to multiple diseases and …

Unraveling The Anti-Inflammatory Mechanisms And Efficacy Of Cannabidiol On The Progression Of A Murine Model Of Multiple Sclerosis From The Innate To The Adaptive Immune System To Clinical Symptoms, Christa Marie Frodella

Theses and Dissertations

Cannabidiol (CBD), a non-psychotropic phytocannabinoid with structural similarity to Δ 9 -tetrahydrocannabinol (THC), is currently being investigated as a therapeutic for its immunosuppressive effects. One disease for which CBD is extensively researched is multiple sclerosis (MS), a demyelinating, autoimmune disorder, and its murine model counterpart, experimental autoimmune encephalomyelitis (EAE). The focus of this dissertation aimed to analyze the transcriptomic brain pathways in EAE and its comparison to MS in addition to CBD’s immunosuppressive mechanisms in the innate and adaptive immune systems. Evidence presented here showed that transcriptomic signaling pathways in the EAE brain of mice with clinical symptoms were similar …

Identification Of Clinical And Behavioral Outcomes Predictive Of Ftld-Tdp Pathology, Nevin Crow, Virginia A. Berry, Eric Febles

Science University Research Symposium (SURS)

Frontotemporal Lobar Dementia (FTLD) is a neurogenerative disease often misdiagnosed as Alzheimer’s Disease (AD), resulting in poor treatment outcomes (Rascovsky et al., 2011). Multi-factorial approaches are increasingly being applied to yield more accurate and earlier diagnoses. These standard clinical outcomes include MRI imaging, biomarkers, and assessments of cognitive ability. While each of these outcomes are partially predictive of FTLD diagnosis, none alone carry enough power to differentiate FTLD patients from other dementias, including AD. One notable variable is TDP-43, a DNA-binding protein involved in regulating the FTLD risk gene UNC13A, suggested as one of the more effective biomarkers for early …

A Structural Examination Of The Connection Between The Amygdala And Nucleus Accumbens In Adolescents With Clinical Anxiety, Alyssa Griffith

Biological Sciences Undergraduate Honors Theses

The prominence of anxiety disorders in today’s general population is a major public health concern. Advancing research of the underlying pathophysiology of anxiety disorders can lead to the discovery of effective treatment interventions to treat the mental and physical symptoms of anxiety, and thus improve quality of life. This study aimed to examine two brain areas in the limbic and reward systems, the amygdala and Nucleus Accumbens (NAcc), and the structural white matter connection between them. This neural circuit assigns affective valence to environmental stimuli and motivates behavior to avoid potential harm. This study utilized diffusion Magnetic Resonance Imaging (dMRI) …

Distinct Thalamic And Frontal Neuroanatomical Substrates In Children With Familial Vs. Non-Familial Attention-Deficit/Hyperactivity Disorder (Adhd), Rahman Baboli, Meng Cao, Jeffrey M. Halperin, Xiaobo Li

Publications and Research

Attention-deficit/hyperactivity disorder (ADHD) is a highly prevalent, inheritable, and heterogeneous neurodevelopmental disorder. Children with a family history of ADHD are at elevated risk of having ADHD and persisting its symptoms into adulthood. The objective of this study was to investigate the influence of having or not having positive family risk factor in the neuroanatomy of the brain in children with ADHD. Cortical thickness-, surface area-, and volume-based measures were extracted and compared in a total of 606 participants, including 132, 165, and 309 in groups of familial ADHD (ADHD-F), non-familial ADHD (ADHD-NF), and typically developed children, respectively. Compared to controls, …

Light And Temperature Entrainment Of Two Circadian-Driven Behaviors In The Flesh Fly Sarcophaga Crassipalpis, Raven Ragsdale

Electronic Theses and Dissertations

Circadian rhythms dictate the timing of both once-in-a-lifetime adult emergence (eclosion) and daily locomotor activity rhythms in the flesh fly S. crassipalpis. Light cycles are considered the primary environmental time cue (zeitgeber), but the life history of S. crassipalpis suggests that temperature cycles (thermocycles) may also play a key role. This work evaluates the efficacy of thermocycling as a zeitgeber in S. crassipalpis. We found that shifting both light and temperature cycles of sufficient amplitude affect the phasing of eclosion and locomotor activity, but result in different patterns. Additional experiments suggest greater thermocycle sensitivity during the late metamorphic …

Antisocial Behavior And Callous Unemotional Traits In Youth: A Biosocial Approach, Yong Lin Huang

Dissertations, Theses, and Capstone Projects

Early life presence of antisocial behavior (e.g., aggression/delinquency) and psychopathic/callous-unemotional (CU) traits (lacking empathy/remorse, shallow affect) are precursors to juvenile crime and criminal offending in adulthood. Etiological research on antisocial/CU tendencies has implicated both neurobiological (e.g., alterations in brain function and structure) and environmental (social adversity, prenatal stress) underpinnings. It has been proposed that reward and punishment processing deficits may induce problematic traits and behavior, such that antisocial/CU tendencies may be linked to hypersensitivity to rewards and hyposensitivity to punishment. Studies in this area have generated inconsistent findings and focused primarily on adult and clinical samples, leaving youth and community …

Development And Characterization Of A Novel, Genetically- Encoded Sensor To Image Sonic Hedgehog Signaling In Functional Circuits, Sonia Bernal

Dissertations, Theses, and Capstone Projects

Dynamic neurotransmitter and neuromodulator signaling in functional circuits is the neural substrate of animal behavior and cognition. The study of said circuits requires tools with sufficient spatiotemporal dynamics that can probe complex signaling patterns and decode their functional relevance by coupling the signal to behavioral output, ideally in awake, behaving animals. Much is known about the role of classical neurotransmitters such as dopamine in behavior, but a wide variety of peptides and small molecules also regulate neuronal transmission. One of these is Shh, whose presence has been observed in a variety of brain regions known to modulate movement, perception, and …

Role Of Nucleobindin-2/Nesfatin-1 In The Regulation Of Energetic Status And Maternal Mouthbrooding In The Cichlid Fish, Astatotilapia Burtoni, Saachi Chugh

LSU Master's Theses

Feeding and energetics are fundamental processes in all species that must also be balanced with reproductive investment. The peptide hormone nesfatin-1 is encoded by the nucleobindin-2(nucb2) gene and has recently emerged as a key player involved in both feeding and reproduction across vertebrates. How nesfatin-1 might help regulate trade-offs between feeding and reproduction, however, are relatively unexplored. The female cichlid fish Astatotilapia burtoniis an ideal system to examine the role of nesfatin-1 in regulating metabolic and reproductive functions because this species cycles between a gravid feeding state while preparing to mate, followed by a forced starvation …

Explicit And Implicit Emotion Processing In The Cerebellum: A Meta‑Analysis And Systematic Review, Jordan E. Pierce, Marine Thomasson, Philippe Voruz, Garance Selosse, Julie Péron

Center for Brain, Biology, and Behavior: Faculty Publications

The cerebellum’s role in affective processing is increasingly recognized in the literature, but remains poorly understood, despite abundant clinical evidence for affective disruptions following cerebellar damage. To improve the characterization of emotion processing and investigate how attention allocation impacts this processing, we conducted a meta-analysis on task activation foci using GingerALE software. Eighty human neuroimaging studies of emotion including 2761 participants identified through Web of Science and ProQuest databases were analyzed collectively and then divided into two categories based on the focus of attention during the task: explicit or implicit emotion processing. The results examining the explicit emotion tasks identified …