Behavior and Behavior Mechanisms Commons^™

Effects Of High-Frequency Repetitive Transcranial Magnetic Stimulation On Impulse Control Disorders In Patients With Parkinson’S Disease On Dopamine Replacement Therapy, Katherine Muksuris

Graduate Theses, Dissertations, and Problem Reports (ETD)

Parkinson’s Disease (PD) is a debilitating neurodegenerative disorder that causes motor deficits, cognitive impairment, and depression. The mainstay treatment for motor symptoms is dopamine replacement therapy (DRT). DRT takes the form of levodopa or dopamine receptor agonists (DAs) and can be associated with impulse control disorders (ICDs). Currently, the approach to mitigating these side effects is to decrease or stop DRT, which may cause motor symptoms to return, making the management of the disorder more difficult. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive neuromodulation treatment for multiple disorders, including its approved use for smoking cessation. It has also shown …

Sex-Dependent Gene Expression Alterations In Social Defeat Stress Model Of Major Depression Disorder, Juan Diego Torres, Javier Vargas Medrano, Anapaula Themann, Elias Arellano Villanueva, Nina Mourao, Megan W. Szobody, Tori Sayers, Sriya Gullapalli, Tyler Torres, Sridhar Srinivasan, Anesu Karen Murambadoro, Kory Deshawn Punch, Kevin Valdez Garcia, Nikhilesh Anand, Kelsey Baker, Sergio Iniguez, Bharathi Shrikanth Gadad

Research Colloquium

Introduction: Major Depression Disorder (MDD) is a prevalent, recurrent, and chronic disorder that represents a leading cause of disability worldwide. Millions are affected with symptoms that go from constant sadness to even suicidal thoughts. In the U.S., major depression and fatal suicide have increased by 57.4% among adolescents and young adults. Myelin and inflammation-related genes have been found to play a role in individuals with MDD.

Methods: Adolescent males and females C57BL/6 mice underwent a vicarious defeat stress (VDS) procedure in which a mouse witnessed a conspecific being defeated. VDS and control (CON) mice underwent the Social Interaction (SI) test. …

Genomic Data Science Approaches For Understanding Human Diseases, Snehal Shah

All Dissertations

The intricate interplay of genetic predisposition, environmental influences, and lifestyle acts as the multifactorial landscape of diseases. Understanding this complexity presents a significant challenge. Molecular insights into disease mechanisms, particularly the interactions of DNA, RNA, and proteins with environmental and lifestyle factors, have revolutionized disease diagnosis, prognosis, and treatment. High-throughput technologies, such as next-generation sequencing, generate large amounts of molecular data, holding a wealth of knowledge. These datasets unveil the roles of genes and their interactions with various factors through analysis, shedding light on previously unknown molecular mechanisms underlying disease pathogenesis. Furthermore, they facilitate the discovery of biomarkers crucial for …

Using Machine Learning To Determine A Functional Classifier Of Reward Responsiveness And Its Association With Adolescent Psychiatric Symptomatology, Robert James Richard Blair, Johannah Bashford-Largo, Ahria Dominguez, Matthew Dobbertin, Karina S. Blair, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Background. Machine learning (ML) has developed classifiers differentiating patient groups despite concerns regarding diagnostic reliability. An alternative strategy, used here, is to develop a functional classifier (hyperplane) (e.g. distinguishing the neural responses to received reward v. received punishment in typically developing (TD) adolescents) and then determine the functional integrity of the response (reward response distance from the hyperplane) in adolescents with externalizing and internalizing conditions and its associations with symptom clusters.

Methods. Two hundred and ninety nine adolescents (mean age = 15.07 ± 2.30 years, 117 females) were divided into three groups: a training sample of TD adolescents …

Second Language Learning In Older Adults Modulates Stroop Task Performance And Brain Activation, Douglas H. Schultz, Alison Gansemer, Kiley Allgood, Mariah Gentz, Lauren Secilmis, Zoha Deldar, Cary R. Savage, Ladan Ghazi Saidi

Center for Brain, Biology, and Behavior: Faculty Publications

Introduction: Numerous studies have highlighted cognitive benefits in lifelong bilinguals during aging, manifesting as superior performance on cognitive tasks compared to monolingual counterparts. Yet, the cognitive impacts of acquiring a new language in older adulthood remain unexplored. In this study, we assessed both behavioral and fMRI responses during a Stroop task in older adults, pre- and post language-learning intervention.

Methods: A group of 41 participants (age: 60–80) from a predominantly monolingual environment underwent a four-month online language course, selecting a new language of their preference. This intervention mandated engagement for 90 minutes a day, five days a week. …

Less Activity Means Improved Welfare? How Pair Housing Influences Pinyon Jay (Gymnorhinus Cyanocephalus) Behaviour, London M. Wolff, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty Publications

The activity level and specific behaviours exhibited by captive animals are crucial indicators of welfare. Stereotypies, or repetitive behaviours that have no apparent function or goal, are performed by animals experiencing poor conditions in their environment and indicate welfare concerns. Changes in the housing environment in particular may have critical influences on behaviour and welfare. Here, we measured behavioural changes in a captive pinyon jay (Gymnorhinus cyanocephalus) population (n = 10) associated with a shift from single to pair housing. Using automated video processing, we show that pair housing greatly reduced overall activity levels in these birds. The …

Dietary Probiotic Supplement Attenuates Methamphetamine-Induced Conditioned Place Preference In Female Sprague-Dawley Rats, Kristen Powell

Masters Theses

Substance use disorders (SUD) represent a global public health crisis with limited effective treatment options. Recent findings implicate the gut microbiome and gut/brain axis in the pathophysiology of SUDs. Several preclinical studies have established that psychostimulants alter gut microbiome composition, but no published studies have assessed behavioral effects of dietary probiotic supplements on drug-induced behavioral changes. This study utilized rodent conditioned place preference (CPP) as a behavioral index of conditioned drug reward to determine if a dietary probiotic supplement alters the behavioral effects of (+)-methamphetamine (METH). Fifty-four adult female Sprague-Dawley rats were randomly assigned to receive either a standard rodent …

Effects Of A Cb1 Receptor Antagonist On Anxiety In Adult Rats Exposed To Thc During Development, Jennifer Aguilera-Fonseca, Karla Colley, Atoria Hamm, Eddie Galarza, Joe Morse, Rachel Ntor, Destiny Pichardo, Vincent P. Markowski

McNair Scholars Program

No abstract provided.

The Impact Of Traumatic Brain Injury On Noradrenergic Innervation Of The Prefrontal Cortex, Jil P. Modi, Christopher P. Knapp, Rachel L. Navarra

Rowan-Virtua Research Day

Traumatic Brain Injury (TBI) is a common cause of death and disability in the United States, and it can occur due to varied reasons including motor vehicle accidents, gunshot wounds, and falls. Following TBIs, patients are often left with lifelong disabilities and cognitive problems that can lead to increased risk-taking behaviors. The main goal of my research was to understand the neural mechanisms that drive increased risk-taking behaviors due to TBIs. The specific areas of the brain I was interested in looking at were the medial prefrontal cortex (mPFC), orbitofrontal cortex (OFC), and/or anterior cingulate cortex (ACC) of the prefrontal …

Alpha 7 Nicotinic Acetylcholine Receptor Expression In The Hippocampus Of Patients With Schizophrenia, Shruti Varshney, Ananya Nethikunta, Minjal Patel, Mary Kosciuk, Randel L. Swanson, Venkat Venkataraman, Robert Nagele, Eric Goldwaser, Nimish K. Acharya

Rowan-Virtua Research Day

Background: Schizophrenia (SZ) is a heterogenous psychiatric condition characterized by disruptions in cognition, social activity, affect, and perception often associated with a varied combination of positive and negative symptoms. The pathophysiology behind SZ remains poorly elucidated. Earlier reports have cited the importance of the alpha 7 nicotinic acetylcholine receptors (α7nAChR) in the hippocampus and the receptor’s association with auditory sensory gating and cognitive function. Specifically, variations in the expression and functionality of α7nAChR can be linked to auditory hallucinations experienced by patients with SZ and several therapies have been researched that target α7nAChRs. However, there are very few primary research …

The Alexander Technique Applied To Dance And The Choreographic Process: Freeing Physical Expression From Trauma-Based Tension, Julia Johnston

Senior Honors Theses

Ballet, contemporary, and modern dancers have expressed incurring trauma during their training and professional dance experiences; in a 2020 survey, 41% of professional dancers and 30% of ballet students reported experiencing or witnessing sexually inappropriate behavior in their respective workplaces and schools (DDP). This is just one example of a potential source of trauma for dancers. The physiological effects of trauma cause physical effects, creating tension in a dancer’s body. Dance relies on physical expression, the expression of thought and feeling through movement, to connect with the audience. Trauma-based tension inhibits a dancer’s range of physical expression and connection to …

Materials And Methods Developed For The Recording And Analysis Of Behavior In The Common Marmoset (Callithrix Jacchus)., Christian Wintle

UNO Student Research and Creative Activity Fair

Materials and methods developed for the recording and analysis of behavior in the common marmoset (Callithrix jacchus).

Christian J. Wintle^a, Jordan B. Hernandez^a,b,c, Dobromir Dotov^d, and Jonathan B. Clayton^a,b,e,f,g

^aDepartment of Biology, University of Nebraska at Omaha, Omaha, NE, USA

^bNebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA

^cDepartment of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center, NE, USA

^dDepartment of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA

^eDepartment of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, …

Grit And Second Language Learning Engagement: The Mediating Role Of Affect Balance, Chenggang Wu, Xiaoyong Tian, Hui Jin

Faculty, Staff and Student Publications

The study of the relationship between key psychological attributes of learners and their engagement in second language (L2) learning helps to understand the critical personality mechanisms influencing language learning. The present study examined the L2 learning engagement from the perspectives of grit (i.e., consistent efforts and interests devoted to a long-term goal) and affect balance (a notion that takes into account both positive and negative emotions concurrently, assessing and evaluating which side holds more significance or influence). A cohort of English L2 learners (

Adolescent Mental Health In The Twenty-First Century, Arthur Maerlander, Patricia Gail Bray

Center for Brain, Biology, and Behavior: Faculty Publications

Conclusion

Parents do not suddenly relinquish medical decision-making to their children and are a vital part of a process construed within the framework of consent and confidentiality laws. In the transition period from childhood to adulthood, adolescents develop unique healthcare needs and concerns at the very time they are gaining autonomy from their parents. Adolescents progress from being recipients of decisions about their care to gradually becoming active participants in their healthcare and emerge as a primary partner in medical decision-making. Building a strong therapeutic alliance with young people can help them become responsible healthcare decision-makers.

Yet while “healthcare,” including …

Associations Of Sex And Sport Contact‑Level With Recovery Timelines Among Collegiate Athletes With Sport‑Related Concussion, Bernadette A. D'Alonzo, Andrea L. C. Schneider, Ian J. Barnett, Christina L. Master, Abigail C. Bretzin, Douglas J. Wiebe, Ivy League-Big Ten Epidemiology Of Concussion Study Investigators

Center for Brain, Biology, and Behavior: Faculty Publications

Background

Growing interest has motivated recent studies to examine differences in recovery after sportrelated concussion (SRC) by sex. However, heterogeneity in study design, participants, and recovery outcomes has led to mixed findings. Further work is needed to evaluate potential differences by sex and to investigate the role of related characteristics, such as sport contact-level, in recovery timelines. This study aimed to investigate whether concussion recovery trajectories differ by sex, considering a priori clinical and demographic covariates, and accounting for the sequence of recovery outcomes. Our secondary question was whether sport contact-level modifies the relationship between sex and time to outcomes. …

Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Background: In the United States (U.S.), falls are the leading cause of injury among adults 65 and over, resulting in 36 million falls yearly (Moreland et al., 2020). According to the Centers for Disease Control and Prevention (CDC, 2023), one in four older adults experiences a fall each year. Falls are the world's second most prominent cause of accidental deaths (World Health Organization [WHO], 2021). Falls are the leading cause of both fatal and non-fatal injuries among older adults (Moreland et al., 2020).

Methods: A quality improvement project that included a fall bundle was implemented in a primary clinic. A …

Identifying Youth Appeals In Alcohol Alternative Social Media Content Through Framing, Melina Oneal

West Chester University Master’s Theses

Proposed regulations for alcohol advertising prevent beverage companies from targeting people under the legal drinking age. However, similar regulations for alcohol alternative beverages are less explored, which could allow alcohol alternative products to create awareness for alcoholic beverages among youth. Alcohol alternatives beverages, including no-alcohol and low-alcohol products, are increasing in popularity and can function as compliments to alcoholic products to decrease the total alcohol volume consumed or as substitutes for alcoholic products. Framing theory can be operationalized through the Content Appealing to Youth Index, an index of content elements found in research literature to be appealing to youth, to …

Investigation Of Brain Function And Structural Development As Risk Factors Of Suicidal Thoughts And Behaviors, Yi Zhou

Theses and Dissertations

Background: Identifying risk factors for suicidal thoughts and behaviors, especially causal ones, will be imperative to improving screening and treatment interventions. To identify replicable brain-based risk factors, there is increasing evidence indicating the need for large sample sizes, in the hundreds to thousands, in order to achieve a sufficient level of statistical power to detect them. Furthermore, longitudinal studies of brain and behavioral factors will be essential to understanding how suicide develops, especially the transition from suicide ideation to attempt. While experimental studies may not be feasible or ethical, genetically informed methods for testing evidence for causation are an alternative …

Opioid System's Potential Involvement In Ketamine's Cognitive And Antidepressant-Like Effects In Rats, Fan Zhang

Theses and Dissertations

Depression stands as one of the most pervasive mental health challenges worldwide, including the United States. Conventional antidepressants typically display a delayed onset of therapeutic action (4-8 weeks) and lack efficacy in a substantial portion of patients (over 40% of depressed patients are treatment-resistant). The dissociative anesthetic ketamine, which is a glutamatergic N-methyl-D-aspartate (NMDA) antagonist, has emerged as a promising novel treatment due to its rapid and prolonged antidepressant effects, and it is especially beneficial for treatment-resistant depression. Nevertheless, the precise neurochemical mechanisms underlying ketamine’s antidepressant properties remain elusive, hampering the development of safer and more efficacious treatments. The present …

Effects Of The Cb1 Receptor Antagonist, Am251, On Maternal Behavior In Long-Evans Rat Dams, Jennifer Aguilera-Fonseca, Karla Colley, Eddie Galarza, Atoria Hamm, Joe Morse, Rachel Ntor, Destiny Pichardo, Vincent P. Markowski

McNair Scholars Program

No abstract provided.

Mild Traumatic Brain Injury In Yucatan Minipigs: Assessing Changes In Approachability And Mechanical Nociception Following Diffuse Central Fluid Percussion Injury, Mark D. Pavlichenko

Theses and Dissertations

Traumatic brain injury (TBI) is a major healthcare concern affecting millions. Symptoms of TBI include sensory sensitivity and social changes that may persist long-term. Due to similarities in cytoarchitecture, metabolism, and inflammation, higher order minipig models are advantageous for translational TBI research, however, there remains a shortage of information regarding their behavioral and sensory sequelae following injury. Therefore, in this study, we assessed changes in sociability and somatosensation in adult male and female Yucatan minipigs for up to one-week following a sham or central fluid percussion injury (cFPI). Specifically, the voluntary human approach task (VHAT) and the forced human approach …

Fitness Consequences Of Depressive Symptoms Vary Between Generations: Evidence From A Large Cohort Of Women Across The 20th Century, Christopher I Gurguis, Renée A Duckworth, Nicole M Bucaro, Consuelo Walss-Bass

Faculty, Staff and Student Publications

Depression has strong negative impacts on how individuals function, leading to the assumption that there is strong negative selection on this trait that should deplete genetic variation and decrease its prevalence in human populations. Yet, depressive symptoms remain common. While there has been a large body of work trying to resolve this paradox by mapping genetic variation of this complex trait, there have been few direct empirical tests of the core assumption that there is consistent negative selection on depression in human populations. Here, we use a unique long-term dataset from the National Health and Nutrition Examination Survey that spans …

Nucleus Accumbens Core Single Cell Ensembles Bidirectionally Respond To Experienced Versus Observed Aversive Events, Oyku Dinckol, Noah Harris Wenger, Jennifer E Zachry, Munir Gunes Kutlu

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Fear learning is a critical feature of survival skills among mammals. In rodents, fear learning manifests itself through direct experience of the aversive event or social transmission of aversive stimuli such as observing and acting on conspecifics' distress. The neuronal network underlying the social transmission of information largely overlaps with the brain regions that mediate behavioral responses to aversive and rewarding stimuli. In this study, we recorded single cell activity patterns of nucleus accumbens (NAc) core neurons using in vivo optical imaging of calcium transients via miniature scopes. This cutting-edge imaging methodology not only allows us to record activity patterns …

Covid‑19‑Related Risk, Resilience, And Mental Health Among Mexican American Mothers Across The First Year Of The Pandemic, Amy L. Non, Elizabeth S. Clausing, Sandraluz Lara‑Cinisomo, Kimberly L. D’Anna Hernandez

Center for Brain, Biology, and Behavior: Faculty Publications

Background Latina mothers have been especially affected by the pandemic and historically exhibit high rates of depression and anxiety. However, few longitudinal studies have assessed the effect of the pandemic on this vulnerable population. We hypothesized that COVID-19-related stressors would associate with psychological distress among Latina mothers across the first year of the pandemic.

Methods We investigated COVID-19-related impact, stigma, and fears across two critical time points and changes in these measures in relation to changes in maternal anxiety and depression among mothers of Mexican descent living in Southern California (n=152). Surveys were administered within 5–16 weeks of …

Reduced Grey Matter Volume In Adolescents With Conduct Disorder: A Region‑Of‑Interest Analysis Using Multivariate Generalized Linear Modeling, Ru Zhang, Robert James R. Blair, Karina S. Blair, Matthew Dobbertin, Jaimie Elowsky, Johannah Bashford‑Largo, Ahria J. Dominguez, Melissa Hatch, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Background

Conduct disorder (CD) involves a group of behavioral and emotional problems that usually begins during childhood or adolescence. Structural brain alterations have been observed in CD, including the amygdala, insula, ventrolateral and medial prefrontal cortex, anterior cingulate cortex, and fusiform gyrus. The current study developed a multivariate generalized linear model (GLM) to differentiate adolescents with CD from typically developing (TD) adolescents in terms of grey matter volume (GMV).

Methods

The whole‐brain structural MRI data were collected from 96 adolescents with CD (mean age = 16.188 ± 1.259 years; mean IQ = 104.292 ± 8.107 ; 63 males) and 90 …

Specialized Late Cingulo-Opercular Network Activation Elucidates The Mechanisms Underlying Decisions About Ambiguity, Jordan E. Pierce, Nathan M. Petro, Elizabeth Clancy, Caterina Gratton, Steven E. Petersen, Maital Neta

Center for Brain, Biology, and Behavior: Faculty Publications

Cortical task control networks, including the cingulo-opercular (CO) network play a key role in decision-making across a variety of functional domains. In particular, the CO network functions in a performance reporting capacity that supports successful task performance, especially in response to errors and ambiguity. In two studies testing the contribution of the CO network to ambiguity processing, we presented a valence bias task in which masked clearly and ambiguously valenced emotional expressions were slowly revealed over several seconds. This slow reveal task design provides a window into the decision-making mechanisms as they unfold over the course of a trial. In …

Attenuated Typicality Effect In Category-Based Inferences: Implications For Autism Spectrum Disorder, Janani Rajagopalan

Dissertations, Theses, and Capstone Projects

Individuals diagnosed with Autism Spectrum Disorder (ASD) often encounter challenges in assimilating atypical exemplars into their categorical prototypes, a cognitive hurdle that can impact their interpretative and integrative capacities. Addressing this problem, the present research sought to develop a robust methodological approach to reduce the effect of this disparity. We examined the elements embedded within the category's internal structure, with the intention of experimentally attenuating the pronounced typicality effect, which is often exaggerated in ASD.

Across four experiments, the thesis investigated the cognitive and neural underpinnings that shape the access to the typicality gradient intrinsic to a category's structure. The …

Assessing Blood Oxygen Level–Dependent Signal Variability As A Biomarker Of Brain Injury In Sport-Related Concussion, Evan D. Anderson, Tanveer Talukdar, Grace Goodwin, Valentina Di Pietro, Kamal M. Yakoub, Christopher E. Zwilling, David Davies, Antonio Belli, Aron K. Barbey

Center for Brain, Biology, and Behavior: Faculty Publications

Mild traumatic brain injury is a complex neurological disorder of significant concern among athletes who play contact sports. Athletes who sustain sport-related concussion typically undergo physical examination and neurocognitive evaluation to determine injury severity and return-to-play status. However, traumatic disruption to neurometabolic processes can occur with minimal detectable anatomic pathology or neurocognitive alteration, increasing the risk that athletes may be cleared for return-to-play during a vulnerable period and receive a repetitive injury. This underscores the need for sensitive functional neuroimaging methods to detect altered cerebral physiology in concussed athletes. The present study compared the efficacy of Immediate Post-concussion Assessment and …

Oleoylethanolamide Facilitates Pparα And Tfeb Signaling And Attenuates Aβ Pathology In A Mouse Model Of Alzheimer’S Disease, Michele M Comerota, Manasee Gedam, Wen Xiong, Feng Jin, Lisheng Deng, Meng C Wang, Jin Wang, Hui Zheng

Faculty, Staff and Students Publications

BACKGROUND: Age is the strongest risk factor for the development of Alzheimer's disease (AD). Besides the pathological hallmarks of β-amyloid (Aβ) plaques and neurofibrillary tangles, emerging evidence demonstrates a critical role of microglia and neuroinflammation in AD pathogenesis. Oleoylethanolamide (OEA) is an endogenous lipid amide that has been shown to promote lifespan and healthspan in C. elegans through regulation of lysosome-to-nucleus signaling and cellular metabolism. The goal of our study was to determine the role of OEA in the mediation of microglial activity and AD pathology using its stable analog, KDS-5104.

METHODS: We used primary microglial cultures and genetic and …

Identification Of Structural Brain Alterations In Adolescents With Depressive Symptomatology, J. Bashford‑Largo, R. James R. Blair, Karina S. Blair, Matthew Dobbertin, Ahria Dominguez, Melissa Hatch, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Introduction: Depressive symptoms can emerge as early as childhood and may lead to adverse situations in adulthood. Studies have examined structural brain alternations in individuals with depressive symptoms, but findings remain inconclusive. Furthermore, previous studies have focused on adults or used a categorical approach to assess depression. The current study looks to identify grey matter volumes (GMV) that predict depressive symptomatology across a clinically concerning sample of adolescents.

Methods: Structural MRI data were collected from 338 clinically concerning adolescents (mean age = 15.30 SD=2.07; mean IQ = 101.01 SD=12.43; 132 F). Depression symptoms were indexed via the Mood …