Nervous System Commons^™

Evaluation Of Neuroplastic Changes In Psychological Intervention And Contemporary Treatments Of Depression, Taylor Severance

Dissertations

Major depressive disorder is one of the most prevalent mental health disorders worldwide. There is a vast range of treatment options for depression, with varying levels of effectiveness. Recent treatments for depression have expanded, increasing alternative treatments, and it is unknown which treatments have the largest impact on depression. This research was designed to examine the treatments of depression, with a focus on psychotherapy and contemporary treatments such as ketamine, psilocybin, and transcranial magnetic stimulation. A literature review was conducted to assess treatment outcomes and neuroplastic changes in these interventions, as well as combinations of the interventions. Data were evaluated …

The Science Of Sound: Studying The Cognitive, Emotional, And Physiological Effects Of Frequency, Genre, And Music, Jett Yarborough

Senior Honors Theses

Music influences emotion, physiology, and cognition, yet little is known about how the frequency it is tuned to affects these influences. Prior research has shown that music tuned to 432 Hz can reduce stress, lower blood pressure, and improve sleep. My colleagues and I conducted two studies to investigate this. Our research found that music tuned to 432 Hz promotes a significant increase in memory retention and induces a state of focus and relaxation. These results suggest that shifting from the standard tuning frequency of 440 Hz to 432 Hz could have a profoundly positive impact on our daily lives. …

Advancing Remote Monitoring For Patients With Alzheimer Disease And Related Dementias: Systematic Review, Mohmmad Arif Shaik, Fahim Islam Anik, Md Mehedi Hasan, Sumit Chakravarty, Mary Dioise Ramos, Mohammad Ashiqur Rahman, Sheikh Iqbal Ahamed, Nazmus Sakib

School of Nursing Faculty Publications

BACKGROUND: Using remote monitoring technology in the context of Alzheimer disease (AD) care presents exciting new opportunities to lessen caregiver stress and improve patient care quality. The application of wearables, environmental sensors, and smart home systems designed specifically for patients with AD represents a promising interdisciplinary approach that integrates advanced technology with health care to enhance patient safety, monitor health parameters in real time, and provide comprehensive support to caregivers. OBJECTIVE: The objectives of this study included evaluating the effectiveness of various remote sensing technologies in enhancing patient outcomes and identifying strategies to alleviate the burden on health care professionals …

The Endocannabinoid System's Influence And Modulation Of Nociception, Doreen M. Flannery

Honors Thesis

The anatomy and physiology of pain is a well-defined pathway where noxious stimuli is processed by different systems in the brain. The central research question of this review is how can we better understand the neurobiological effects pain has, and assess if there is therapeutic potential in using endocannabinoids to modulate these effects. Endocannabinoids are signaling molecules that play a key role at both the cellular and molecular level in modulating both acute and chronic pain by influencing different processes within each level that affect how the body responds to both internal and external stimuli. The endocannabinoid system is a …

Is The Vaping Epidemic Linked To Neurologic Changes And Mental Health Diagnoses Amongst Us Adolescents?, Tracy Lin, Victoria Shwe

Rowan-Virtua Research Day

Vaping has significantly increased among U.S. adolescents, driven by the rise of e-cigarettes and flavored pods. Nicotine exposure during brain development is linked to changes in the limbic-dopaminergic system, white matter integrity, and increased risk of emotional and behavioral dysregulation. Higher rates of depression, anxiety, and suicidality are reported among adolescent users, with greater symptom severity seen in those with high vaping dependence. Though studies show correlation rather than causation, findings suggest vaping may contribute to rising mental health diagnoses. Addressing vaping’s neurological and psychological impact is critical to guiding prevention efforts, regulatory policies, and support for at-risk youth.

Autoimmune Encephalitis Presenting As Pseudodementia (Case Report), Renita Ng, Christie Richardson

Rowan-Virtua Research Day

Patients with autoimmune encephalitis frequently present with psychiatric symptoms including psychosis, behavioral changes, and affective disorders. Because of this, misdiagnosis of a primary psychiatric disorder in a case of autoimmune encephalitis is not uncommon. We present a case of autoimmune encephalitis in a 72 year old who was initially thought to have psuedodementia or catatonia due to variable collateral who later on LP was found to have markers and responded to steroid treatment. This case highlights the importance of maintaining a broad differential with patients who present with psychiatric alterations and to consider other causes of behavioral change.

Effects Of Social Isolation On Cecum Opioid Receptor Expression And Affective Behavior, Jordan Riser, John Tkaczynski, Nicole Shellenbarger, Maya Patel, Daniel Chandler, Daniel Manvich

Rowan-Virtua Research Day

BACKGROUND

Psychological stress can induce gastrointestinal symptoms and exacerbate existing gastrointestinal disorders, indicating an interaction between the central and enteric nervous systems. Central nervous system activation of opioid receptors stimulates sympathetic outflow to the enteric nervous system, delaying motility and reducing gastrointestinal secretions, producing a similar clinical presentation to IBS.

HYPOTHESIS

We hypothesize that social isolation induces anxiety states, disrupting homeostatic noradrenergic activity in the brain and gut, leading to neurophysiological changes in the cecum characterized by altered expression of opioid receptors.

METHODS

Sprague-Dawley rats were housed in either group (control) or socially isolated conditions. Affective behavior was assessed using …

Modulation Of Opioid Receptor Expression In The Ventral Tegmental Area Following Stress Exposure In Rats, Maya Patel, John Tkaczynski, Jordan Riser, Nicole Shellenbarger, Jin Park, Daniel Manvich, Daniel J. Chandler

Rowan-Virtua Research Day

Background: The ventral tegmental area (VTA) contains dopamine-producing neurons projecting to various brain regions. VTA dysfunction is linked to addiction and depression. Delta opioid receptor upregulation relates to chronic pain, inflammation, cancer, and early adversity. Kappa receptors in the VTA influence stress, drug-seeking, mood, and reward. Notably, chronic substance abuse upregulates the κ-receptor/dynorphin system, and the opioid system regulates social interaction needs.

Hypothesis: Stress will upregulate opioid receptors.

Methods: We compared group-housed and individually-housed rats using stress tests, analyzing behavior and quantifying VTA opioid receptor expression.

Results: Social isolation upregulated delta and kappa opioid receptors in …

Investigating Prefrontal Cortex Neuronal Signatures Of Opioid-Induced Risk-Taking Behavior, Cana Quave

Dissertations and Theses (Open Access)

Opioid use disorder occurs alongside impaired risk-related decision-making, but the underlying neural correlates are unclear. We developed an approach-avoidance conflict task using a modified conditioned place preference procedure to study neural signals of risky opioid seeking in the prefrontal cortex, a region implicated in executive decision-making. Following morphine conditioned place preference, rats underwent a conflict test in which fear-inducing cat odor was introduced in the previously drug-paired side of the apparatus. While the saline-exposed control group avoided cat odor, the morphine group included two subsets of rats that either maintained a preference for the paired side despite the presence of …

Gray Matter Morphology And Pain-Related Disability In Young Adults With Low Back Pain, Jo Armour Smith, Rongwen Tain, Isaac Chrisman, Kelli G. Sharp, Laura M. Glynn, Linda R. Van Dillen, Jesse V. Jacobs, Steven C. Cramer

Physical Therapy Faculty Articles and Research

Structural neuroplasticity in the brain may contribute to the persistence of low back pain (LBP) symptoms and the disability associated with them. It is not known if structural adaptations are evident early in the lifespan in young adults with LBP. This study compared gray matter in cortical sensorimotor regions in young adults with and without persistent LBP and identified gray matter and clinical predictors of pain-related disability. Eighty-two individuals with and without a history of LBP participated. Peak and average gray matter density in cortical sensorimotor regions of interest was quantified using voxel-based morphometry. Pain-related disability, pain intensity, pain duration, …

Psychophysiological Tools & Techniques To Predict Perceptual Motor Task Outcomes, Bobby Gerald Rawls Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

The process of perceiving environmental information, analyzing it, formulating a plan of action, and carrying out said plan is vital to our day to day lives. This loop occurs for every motor task we perform, from actions as simple as elbow flexion to as complex as performing surgery. As such, it is imperative to understand what physiological, psychological, and neurocognitive factors most dictate success or failure in the motor performance loop.

Prior research has shown that measures from each of these facets have strong relationships with motor performance outcomes, though these findings tended to rely on artificially produced stress in …

Womb, Gravity, And Space: Shifting Towards The Cerebellum-Basal Ganglia Paradigm In Dystonia, Diego Iacono

Department of Neurology Faculty Papers

No abstract provided.

Acute Stress Activates Basolateral Amygdala Neurons Expressing Corticotropin-Releasing Hormone Receptor Type 1 (Crhr1): Topographical Distribution And Projection-Specific Activation In Male And Female Rats, Robert J. Aukema, Gavin N. Petrie, Samantha L. Baglot, Nicholas W. Gilpin, Matthew N. Hill

School of Medicine Faculty Publications

Although the basolateral amygdala (BLA) and corticotropin releasing hormone receptor type I (CRHR1) signaling are both central to the stress response, the spatial and circuit-specific distribution of CRHR1 have not been identified in the BLA at a high resolution. We used transgenic male and female CRHR1-Cre-tdTomato rats to topographically map the distribution of BLA neurons and identify whether they are activated by acute stress. Additionally, we used the BLA circuits projecting to the central amygdala (CeA) and nucleus accumbens (NAc) as a model to test circuit-specific expression of CRHR1 in the BLA. We established several key findings. First, CRHR1 had …

Psychosis And Personality Changes Following Traumatic Brain Injury, David Hanna, Sonya Priven, Nathan Carroll, Heba Ekladios, Adriana Fitzsimmons

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Psychotic disorders following traumatic brain injury (TBI) are a significant concern in psychiatry, with chronic sequelae often overlooked. The pathophysiology of post-TBI psychosis involves neuroplasticity and neuronal remodeling, potentially exacerbating vulnerabilities to chronic psychotic disorders. Differentiating post-TBI psychosis from primary schizophrenia and other psychotic conditions is crucial for appropriate treatment. This case report discusses a 63-year-old male with a history of TBI from a gunshot wound sustained in adolescence, who later developed schizophrenia. The report explores the patient's psychiatric symptoms, cognitive dysfunction, personality changes, and imaging findings. The report examined the complex relationship between TBI and psychotic symptoms, considering genetic, …

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 …

Regulation Through Rhythm: A Literature Review On Dance/Movement Therapy Approaches To Facilitating Nervous System Regulation, Elizabeth Barbera

Expressive Therapies Capstone Theses

Abstract

The mental health field has started to pay attention to how trauma plays into a person’s overall mental and physical well-being. Because of this more research has shown the connection between mind and body. Yet the clinical implications and literature on theories of how to treat trauma and trauma related disorders do not always connect. This review of literature seeks to analyze the literature on Porges’, Polyvagal Theory and Amighi’s, Kestenberg Movement Profiles. An investigation of the current literature makes a connection between the phylogenetic order of both the nervous system and developmental movement. Considerations of how trauma, in …

The Role Of The Infralimbic-Basal Forebrain Pathway In Fear Extinction, Carolina Maria Fernandes Henriques

Dissertations, Theses, and Capstone Projects

The medial prefrontal cortex (mPFC) is a key region for emotion regulation, and its failure to regulate extinction of aversive memories is associated with Post Traumatic Stress Disorder. Study of how the Infralimbic cortex (IL), a subregion of the mPFC, directly communicates with the Basolateral Amygdala (IL-BLA), has thus far failed to uncover the circuit mechanisms that lead to mPFC-mediated amygdala suppression of firing and diminished fear responses during extinction retrieval. One problem of this model is that it doesn’t incorporate indirect IL communication with the BLA. A key region to help understand how IL modulates extinction is the basal …

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 …

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 …

Traumatic Stress-Induced Increases In Anxiety-Like Behavior And Alcohol Self-Administration Are Mediated By Central Amygdala Crf1 Neurons That Project To The Lateral Hypothalamus, Marcus M. Weera, Daniel A. Webster, Rosetta S. Shackett, Federica Benvenuti, Jason W. Middleton, Nicholas W. Gilpin

School of Graduate Studies Faculty Publications

Avoidance stress coping, defined as persistent internal and/or external avoidance of stress-related stimuli, is a key feature of anxiety- and stress-related disorders, and contributes to increases in alcohol misuse after stress exposure. Previous work using a rat model of predator odor stress avoidance identified corticotropin-releasing factor (CRF) signaling via CRF type-1 receptors (CRF1) in the central amygdala (CeA), as well as CeA projections to the lateral hypothalamus (LH) as key mediators of conditioned avoidance of stress-paired contexts and/or increased alcohol drinking after stress. Here, we report that CRF1-expressing CeA cells that project to the LH are preferentially activated in male …

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 …

Acute Ethanol Modulates Synaptic Inhibition In The Basolateral Amygdala Via Rapid Nlrp3 Inflammasome Activation And Regulates Anxiety-Like Behavior In Rats, Soumyabrata Munshi, Lucas Albrechet-Souza, Raoni Conceição Dos-Santos, Claire E. Stelly, Maria E. Secci, Nicholas W. Gilpin, Jeffrey G. Tasker

School of Graduate Studies Faculty Publications

Chronic alcohol exposure leads to a neuroinflammatory response involving activation of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome and pro-inflammatory cytokine production. Acute ethanol (EtOH) exposure activates GABAergic synapses in the central and basolateral amygdala (BLA) ex vivo, but whether this rapid modulation of synaptic inhibition is due to an acute inflammatory response and alters anxiety-like behavior in male and female animals is not known. Here, we tested the hypotheses that acute EtOH facilitates inhibitory synaptic transmission in the BLA by activating the NLRP3 inflammasome-dependent acute inflammatory response, that the alcohol-induced increase in inhibition is cell type- and …

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 …

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 …

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 …