Neuroscience and Neurobiology Commons^™

Delineating Differences In Firing Rate Estimates Of Healthy And Parkinsonian Single-Unit Basal Ganglia Recordings, Richard R. Foster, Cheng Ly

Biology and Medicine Through Mathematics Conference

No abstract provided.

Gap Junction Architecture And Synchronization Clusters In The Thalamic Reticular Nuclei, Alex Norwood

Biology and Medicine Through Mathematics Conference

No abstract provided.

Effects Of Limb Dominance On Dopaminergic Neurodegeneration In A 6-Ohda Rat Model Of Parkinson’S Disease Assessed By Immunoblotting, Jasin Aziz Porshia, Deanna Chaialee, Dipesh Pokharel, Kala Venkiteswaran, Thyagarajan Subramanian, Dilshan Beligala

ONU Student Research Colloquium

Effects of Limb Dominance on Dopaminergic Neurodegeneration in a 6-OHDA Rat Model of Parkinson’s Disease Assessed by Immunoblotting

Jasin Porshia^a , Deanna Chaialee^a , Dipesh Pokharel^b,c , Kala Venkiteswaran^{b, c, d} , Thyagarajan Subramanian^{b, c, d}, Dilshan Beligala^a

^aDepartment of Biological Sciences, Ohio Northern University, Ada, OH, USA

^bDepartment of Neurosciences and Psychiatry, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA

^cDepartment of Neurology, The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA

^dDepartment of Neurology, Howard University, Washington, DC, …

A Single Administration Of Psilocybin Is Ineffective In Reversing Ptsd-Like Sequelae In A Rat Model Of Stress-Enhanced Fear Learning, Kylie M. King, Marisa J. Savini, Noelle M. Molnar, Evelynn J. Schneider, Savannah E. Straub, Joe Parker, Lillianna P. Puppel, Aleece K. Al-Olimat, Allison M. Bach, Phillip R. Zoladz

ONU Student Research Colloquium

Single treatments with psychedelics produce rapid, long-lasting antidepressant effects. Psychedelics may also exert anxiolytic effects and be useful in treating more complex psychiatric conditions, such as PTSD. However, less is known about the impact of these agents on PTSD-related symptoms. Thus, we aimed to determine whether a single administration of psilocybin could reverse PTSD-like sequelae induced by stress-enhanced fear learning in rats. Sprague-Dawley rats were placed in Context A (circular, white conditioning box) and exposed to several uncontrollable footshocks (Stress) or no footshocks (No Stress). The next day, the rats were placed in Context B (square conditioning box with clear …

Psilocybin And The Related Tryptamine, Norbaeocystin, Exert Acute Anxiogenic Effects That Depend On Sex, Marisa J. Savini, Kylie M. King, Noelle M. Molnar, Evelynn J. Schneider, Savannah E. Straub, Joe Parker, Lillianna P. Puppel, Aleece K. Al-Olimat, Allison M. Bach, Andrew Jones, Phillip R. Zoladz

ONU Student Research Colloquium

Single treatments with psychedelics have demonstrated rapid, long-lasting antidepressant effects. However, psychedelics often produce unfavorable psychoactive effects that could worsen existing psychological distress. Thus, we compared the effects of psilocybin and the related tryptamine, norbaeocystin, on anxiety-like behavior in male and female rats. In Experiment 1, rats were treated with 1 mg/kg psilocybin (PSIL), 1 mg/kg norbaeocystin (NOR), or vehicle 30 min before a 5-min trial on an elevated plus maze (EPM) or in an open field test (OFT). On the EPM, PSIL led to decreased open arm time and fewer arm entries in males and females. NOR led to …

Impact Of Caffeine On Participant Memory For A Stressful Experience And The Development Of Intrusive Memories, Jaycee L. Kirkland, Kaylina R. Mcclenen, Natalina E. Porter, Sarah M. Wood, Julia Gross, Madilyn E. Paphanchith, Kelsey M. Siereveld, Jasmine Ic Ifeakanwa, Caeden M. Gurganus, Koen N. Suzelis, Aiden J. Farrell, Boyd R. Rorabaugh, Phillip R. Zoladz

ONU Student Research Colloquium

Most individuals consume caffeine on a daily basis. Research has shown that caffeine stimulates the release of glucocorticoids and catecholamines and can enhance cognition. Caffeine also amplifies stress-induced increases in arousal and aggravates PTSD-like symptoms. Thus, we examined the impact of caffeine on memory for a stressful experience and intrusive memories related to that experience. Undergraduate students ingested caffeine or a placebo. Thirty minutes later, they were exposed to the Trier Social Stress Test (TSST; stress condition) or friendly-TSST (f-TSST; control condition), both of which were designed to enable participant memory for the experiences to be quantified. In each condition, …

Role Of Cb1 Receptors In Mediating Thermal Pain In Male And Female Mice, Jessica Acheampong, Sarah Seeley, Manoranjan S. Dsouza

ONU Student Research Colloquium

Pain is responsible for significant morbidity and mortality in the United States and all over the world. CB1 cannabinoid receptors have been reported to play a role in pain. Also, more recently sex-dependent behavioral differences after CB1 receptor activation have been reported. However, the sex-dependent effects of CB1 receptor activation on thermal pain have not been systematically assessed. This project will address this gap in knowledge. The study will use adult male and female C57BL6 mice. CB1 receptors will be activated using the synthetic cannabinoid WIN 55212. Thermal pain will be assessed using the hot plate method. Data for the …

Optimizing Itpa R178c Assays Via Hplc, Jared J. Reisnouer, Wally D. Pines

2026 Symposium

Two of the major nucleotide bases in DNA and RNA (Adenine and Guanine) are derived from the purine Inosine Monophosphate (IMP). IMP may occasionally form the noncanonical nucleotide Inosine Triphosphate (ITP) within the cell and become incorporated into DNA during replication, leading to potentially lethal errors. To combat this, human cells produce the “housekeeping” enzyme Inosine Triphosphatase (ITPA) to revert ITP to IMP. A mutation of this protein that replaces the 178th amino acid Arginine with Cysteine (R178C) is associated with a fatal infantile encephalopathy. Previous assessments of enzyme-substrate binding and catalysis for ITPA variants have been run at a …

Amyloid Beta-42 Neurotoxicity In Drosophila Retinal Development, Shay O. Sims, Pierce Duncan, Malachi Abon, Jacob G. Smith

Create@State

Alzheimer's disease (AD) represents one of the most prevalent neurodegenerative disorders globally. Thus far, the underlying mechanisms associated with the pathogenesis of AD are innately elusive. Two hallmarks associated with the progression of AD exist, including Amyloid-Beta 42 (Aβ42) protein plaque formation and hyperphosphorylation of tau proteins in neurons. Amyloid-beta is known to concentrate with other neuronal proteins as complexes form, including the cytoskeletal protein actin. However, whether actin contributes to neuronal decline in AD is unknown. To further understand the cellular cascades associated with AD, we investigated the role of cytoskeleton dynamics in modulating oxidative stress and neuroinflammation within …

Relish As A Temporal Switch In Neurodegeneration Using Drosophila Melanogaster, Kyle M. Johnson

Create@State

Neurodegenerative diseases are often linked to chronic inflammation in the nervous system, but it is still unclear what triggers this process during the early stages of disease. This project examines whether activation of the NF-κB transcription factor Relish may act as a temporal switch that contributes to early neurodegenerative stress in Drosophila melanogaster. As a result of many innate immune pathways are consistent between flies and humans, Drosophila serves as a useful model for studying how immune signaling affects neuronal health. In this study, neural driver lines were crossed with control strains to evaluate how changes in Relish signaling …

An Investigation Into Relish Activation As A Temporal Switch In Neurodegeneration, Kyle M. Johnson

Create@State

Neurodegenerative diseases are often linked to chronic inflammation in the nervous system, but it is still unclear what triggers this process during the early stages of disease. This project examines whether activation of the NF-κB transcription factor Relish may act as a temporal switch that contributes to early neurodegenerative stress in Drosophila melanogaster. As a result of many innate immune pathways are consistent between flies and humans, Drosophila serves as a useful model for studying how immune signaling affects neuronal health. In this study, neural driver lines were crossed with control strains to evaluate how changes in Relish signaling …

Evaluating Elisa-Based Domoic Acid Detection Methods In Fetal And Maternal Samples Of California Sea Lions (Zalophus Californianus), Deanie Woodruff, Emily Lickiss, Samuel Gardiner, Mia Gastile, Elizabeth Sandoval, Florybeth La Valle

Seaver College Research And Scholarly Achievement Symposium

Harmful algal blooms produced by the diatom Pseudo-nitzschia regularly expose marine mammals along the California coast to domoic acid (DA), a neurotoxin that bioaccumulates in marine food webs. In California sea lions (Zalophus californianus), domoic acid exposure is associated with seizures, hippocampal injury, and maternal-fetal transfer of the toxin that can result in abortion. Bloom events have led to large numbers of stranded sea lions along the California coast. Although some clinical and neurological effects of domoic acid toxicosis have been documented, especially with regard to the hippocampus, there is limited understanding of how domoic acid concentrations fluctuate over the …

Genotype-Dependent Response Of Huntington’S Disease Cells To Non-Contact Picosecond Pulsed Electric Fields (Pspef), Augustine U. Anthony, Mackenzie A. Tardif-Kunk, Martina Zamponi, Peter A. Mollica

Knowledge and Creativity Expo

Non-Contact Picosecond Pulsed Electric Fields (psPEF) improved metabolic function in mutant Huntington diseased isogenic cell lines.

Neurofeedback: An Emerging Contender In The Treatment Of Mental And Behavioral Disorders, Makayla Fisher

Student Scholar Symposium

Neurofeedback, an emerging treatment for mental and behavioral disorders, has shown promising results as a holistic alternative to traditional therapy and medication. This treatment was discovered in the 1950s by using an electroencephalography (EEG) device to train people to achieve an alpha state using the reward of a bell sound. Currently, the basis of neurofeedback is using an EEG device that is connected to a video, such as television, to receive positive or negative feedback, corresponding to beneficial or non-beneficial brain activity. After 3-4 weeks of the video dimming in response to non- beneficial brain activity, your brain starts to …

Modeling Synaptic Dysfunction As Neural Contagion: A Graph-Based Sedr Framework For Simulating Signal Spread, Michelle Marfo, Dr. Padmanabhan Seshaiyer, Alonso Ogueda-Oliva

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Paintings Analysis Using Copilot Ai: The Case Of Winston Churchill And Art In His Life, Yuri Zagvazdin

Learning and Educational Center Virtual Teaching and Learning Conference

The objective of this presentation is to demonstrate a method for analyzing artistic style and its potential evolution using the Copilot AI platform. As a case study, I explore the paintings of Winston Churchill (1874–1965), the British Prime Minister, who was also a passionate and prolific painter. Although Churchill began painting in his forties, he produced over 500 works, with his final piece completed in 1962.

Churchill frequently painted scenes from Southern France and Morocco—locations he returned to repeatedly throughout his artistic life. Remarkably, he continued painting even after suffering multiple cerebrovascular accidents. Stroke-induced brain damage is typically detrimental to …

Fostering Entrepreneurial Thinking And Practice Through Teaching And Learning Integration, Mohammad G. Sabbir

Learning and Educational Center Virtual Teaching and Learning Conference

This session explores an innovative, evidence-based approach to integrating entrepreneurial thinking into undergraduate neuroscience education through hands-on gene editing experiences. Using the commercially available Bio-Rad CRISPR/Cas9-based “Out of the Blue” kit for bacterial LacZ gene editing, students are guided not only through the scientific principles underlying modern gene editing technologies but also through the entrepreneurial challenge of replicating and manufacturing the kit using existing lab resources. This model empowers students to extend their learning beyond the classroom by engaging in cost-effective, scalable biotechnology practices—particularly valuable for institutions with limited funding. Classroom-based research demonstrates increased student engagement, deeper conceptual understanding, and …

Treatment Of Tics In Pediatric Patients With Neurodevelopmental Disorders, Faiza Ahmad

Research Colloquium

Background: The prevalence of chronic and transient tic disorders in children with neurodevelopmental delays is substantially higher than in the general pediatric population. Disorders including Tourette’s Syndrome, Chronic Persistent Motor Tic Disorder or Provisional Tic Disorder, can present challenges in treatment when comorbid neurodevelopmental disorders. Children with Autism Spectrum Disorder (ASD), Down’s Syndrome or other developmental delays may not be able to participate in first-line behavioral interventions like CBIT (Comprehensive Behavioral Intervention for Tics) therapy. Therefore, optimization of pharmacologic treatment is often necessary in this population, especially in the case of severe, refractory tics. Additionally, pharmacologic treatment can be …

From Venom To Medicine: Harnessing Animal Toxins For Drug Discovery, Christine Vega, Ying Jia

Research Colloquium

Background: Drug development research has long focused on synthesizing novel therapeutics while overlooking isolation from naturally available sources such as animal venoms. Recently, the discovery of the therapeutic effects of highly bioavailable animal venom caused the field of venom research to soar in popularity. Animal venom serves as a natural, sophisticated tool optimized over millions of years by evolution with the ability to bind to ion channels such as nAChRs, non-specific ligand-gated ion channels distributed throughout the human nervous system. However, purifying individual venom toxins from crude venom is challenging due to its availability. Therefore, synthesizing large quantities of venom …

Capturing The Representational Dynamics Of Face Perception In Deep Recurrent Neural Networks, Hossein Adeli, Chase W. King, Nikolaus Kriegeskorte

MODVIS Workshop

We investigate the representational dynamics of recurrent convolutional neural networks (RCNNs) in order to understand the time-course of visual recognition. We explore a family of models with bottom-up and lateral connections that were optimized for face-identification and object-recognition tasks. Using representational similarity analysis (RSA), we observed that only models that were trained for face identification showed a late-emerging prominent distinction of identities as seen in the monkey face patch AM. Early model responses strongly separated the objects from the faces. These findings suggest that the dynamics of face recognition that emerges in a hierarchical recurrent neural network prioritizes category-level recognition …

Attention Improves Classification Performance Of Locations In Ventral And Dorsal Visual Pathways, Jinho Lee, Sung-Mu Lee, Ishita Agarwal, Anne Sereno

MODVIS Workshop

Visual processing is divided into a ventral and dorsal pathway, thought to be important for object recognition and spatial cognition, respectively. Yet both streams encode shape and spatial information, and both are modulated by attention and task demands. This study compared how attention influences fMRI bold responses in a ventral region (fusiform gyrus, FG) and dorsal region (superior parietal gyrus, SPG). Specifically, using multivariate pattern analysis within each region, we examined whether attention modulated spatial location classification performance. During fMRI scans, participants performed one of 3 possible tasks: a 1-back task under attend-to-shape (detect a shape repetition); a 1-back task …

Comparing Apples To Oranges From Photoreceptors To Inferotemporal Cortex, Qasim Zaidi, Xu Yi, Akihito Maruya, Bevil Conway

MODVIS Workshop

No abstract provided.

Perceptograms And Cortical Models For Amblyopic Form Distortions, Akihito Maruya, Farzaneh Olianezhad, Jingyun Wang, Jose-Manuel Alonso, Qasim Zaidi

MODVIS Workshop

No abstract provided.

Influence Of Task On The Geometry Of A Perceptual Space, Jonathan D. Victor, Mary M. Conte

MODVIS Workshop

Perceptual spaces are representations of a sensory or cognitive domain in which the domain’s elements correspond to points, and distances between these points are perceptual differences. Proximity relationships within a perceptual space can support a variety of functions, including discrimination, grouping, learning, and generalization. These diverse functions may use the features of the domain in different ways, resulting in task-dependent influences on the geometry of the space.

To identify and characterize these influences, we focused on a domain of visual textures. These textures varied across many dimensions, including mean luminance and low- and high-order spatial correlations, which formed the axes …

Using Neural Networks To Better Understand Static And Dynamic Components Of Facial Expression Recognition, Yi-Fan Li, Anne Bibiana Sereno

MODVIS Workshop

Facial expressions are crucial social information for human communication. In the real world, facial expressions are dynamic; however, much of existing research in facial expressions relies on static stimuli. This static approach may limit the ecological validity of our understanding of the emotional information on faces. Our study aims to investigate the dynamic and static information contained in different emotional categories of facial expressions (e.g., happy, sad). Four convolutional neural networks are introduced as models to be trained with a large-scale dynamic facial expression dataset (short videoclips of 16 frames of 7 different emotional categories) in four different ways: ordered …

Modeling Effects Of Edge Classification And Perceptual Organization On The Appearance Of Disk/Annulus Stimuli, Michael E. Rudd

MODVIS Workshop

In classical theories of sensory psychophysics, appearance matches conducted with simple stimuli consisting of disks surrounded by annuli were posited to probe low-level contrast mechanisms in the visual pathways that computed the approximate luminance ratio between the disk and annulus for the purpose of achieving lightness constancy (Wallach, 1948). Subsequent models have explained such matches on the basis of neural edge integration (Shapley & Reid, 1985; Rudd & Zemach, 2004). Here, I demonstrate that appearances matches made in the disk/annulus paradigm are influenced by at least two types of top-down effects involving edge classification and perceptual organization. I present a …

Fixational Eye Movements Shake Up The Stationary View On Pattern Vision, Lynn Schmittwilken, Marianne Maertens

MODVIS Workshop

No abstract provided.

A Computational Perspective On Segregated Processing And The Privileged Role Of Space In Binding, Anne Sereno, Zhixian Han, Elizabeth M. Frazier

MODVIS Workshop

No abstract provided.

Effects Of Novel Dopamine D4 Receptor-Targeted Compounds On Locomotor Activity And Anxiety-Like Behavior In Male And Female Sprague Dawley Rats, Samantha Alyse Walkow, Noah A. Ivak, Daniel Chandler, John Tkaczynski, Thomas M. Keck, Comfort A. Boateng, Eleni Papadopoulos, Barry D. Waterhouse, Rachel L. Navarra

Rowan-Virtua Research Day

The consequences of modulating subtypes of G protein coupled dopamine receptors are broadly studied for their role in decision making behavior, specifically in situations involving uncertain risk and reward. The actions of dopamine D4 receptors (D4Rs) on these complex processes are the least understood, particularly due to a lack of available compounds with suitable selectivity for D4Rs. Further, current research often fails to evaluate how modulating specific dopamine receptor subtypes may affect locomotor activity and anxiety-like behavior as confounding factors prior to assessing their function in behavioral assays of higher order decision making. The goal of the current study was …

Dabigatran Reduced Acute Microgliosis In A Mouse Model With Tbi, Nicholas R. Eltman, Rashmeena Abbasi, Mary C. Kosciuk, Syed Ahmed, Jose L. Pascual, Randel L. Swanson, Nimish K. Acharya

Rowan-Virtua Research Day

Objective:

The study objective was to investigate the acute anti-inflammatory effects of dabigatran in a preclinical mouse controlled cortical impact (CCI) model of severe traumatic brain injury (TBI).

Design

Mice were separated into three groups: controlled cortical impact (CCI) with dabigatran (drug treatment, n=5), CCI with saline (positive control, n=5), and sham CCI without saline or dabigatran (negative control, n=3). Dabigatran (80mg/kg) or saline was administered orally at 2, 10, 18, 26, 34, and 42 hours following experimental CCI in the drug treatment or positive control groups, respectively. Animals in the negative control group received sham CCI only. 48h following …