Medicine and Health Sciences Commons^™

The Importance Of Health Anxiety And Emotional Reasoning To Understand Vaccine Hesitancy And Safety Behaviors: Implications For Public Health Campaigns In A Covid_19 Era, Samantha Ballas, Kimberli Treadwell

Honors Scholar Theses

This study examined the impact of health anxiety and emotional reasoning on COVID-19 vaccine hesitancy and preventative behaviors, hypothesizing that high anxiety and emotional reasoning would predict lower vaccine hesitancy and higher COVID-19 preventative health behavior after controlling for demographic variables. A large international non-probability convenience sample of 532 individuals consented to an online survey in a cross-sectional period from March through August 2021 (one month following availability of vaccinations in the USA). Participants completed questionnaires online. Health anxiety and general anxiety were significantly correlated with COVID-19 preventative behaviors, including mask wearing and social distancing, and emotional reasoning. General anxiety …

Assessing Rat Behavioral Response To Novelty, Neha Mathew

Honors Scholar Theses

The hippocampus is the part of the brain that is involved in memory and navigation. Neurons in the hippocampus, known as place cells, fire in specific locations within this region of the brain as the subject navigates through their environment. As these cells fire, they create a map-like representation of this environment. However if the environment is altered in any way, the place cell firing pattern is adjusted to incorporate this new information. This adjustment will inevitably cause subjects to take more time to complete their task. The goal of our testing was to assess how various manipulations, both spatial …

Amygdala And Neocortical Structural Volume Analysis In The Shank3b Mutant Mouse Model Of Autism Spectrum Disorder, Preet Sawhney

Honors Scholar Theses

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder that is characterized by abnormal social behavior, deficits in communication, and motor stereotypy. The SHANK3 gene, responsible for the generation of a scaffolding protein that is integral for the development of synapses, has been identified as one of the primary candidate genes implicated in the disorder. Shank3B is the rodent homolog for this gene. Research has shown that when this gene is disrupted in rodent models (e.g., via knock-out (KO)), ASD-like behaviors result. These include deficits in social interaction, increased anxiety, and repetitive self-grooming. The current study aimed to identify a physiological …

The Impact Of Location On Healthcare Access For Individuals With Disabilities, Addison Kimber

Honors Scholar Theses

This paper analyzes healthcare access for individuals with disabilities living in rural areas. In current political discussion, we typically think of insurance coverage as the metric to analyze healthcare access. However, as demonstrated by studies of healthcare in the United Kingdom, people with disabilities continue to face barriers to health care even with universal healthcare systems. In particular, individuals in rural areas have less healthcare access than urban residents. This is due to factors including socioeconomic status, insurance coverage, access to competent care, and transportation. This study aims to understand if disability status exacerbates the issue of access in rural …

Promoting Resilience In Self-Management (Prism): Adverse Childhood Experiences And Impacts On Emotion Regulation, Kasey Ann Macedo

Honors Scholar Theses

PRISM (Promoting Resilience in Self-Management) is a mindfulness-based intervention that aims to strengthen emotion regulation skills among individuals by employing cognitive behavioral therapy components. The purpose of the current study is to identify the relationship between adverse childhood experiences (ACEs) and depression, as well as to examine the changes in emotion regulation strategies of participants by comparing pre and post test data. The participants were voluntarily recruited from the Cornerstone Foundation, a homeless shelter, food pantry, and community center in Vernon, CT. The 13 participants completed PRISM through four weeks of two-hour workshop sessions in a small-group format. Results indicate …

Maternal Immune Activation (Mia) In Mice: A Study To Phenotype Asd-Related Communication Behaviors And Analyze Maternal Health Outcomes In The Us, Komalpreet Gulati

Honors Scholar Theses

Core symptoms of Autism Spectrum Disorders (ASD) include deficits in social/communicative behaviors, and repetitive/stereotyped behaviors. Mouse models are a highly established paradigm used to study the phenotypic deficits that result from various inducible genotypic or environmental risk factors for ASD. Previous studies have demonstrated a link between maternal immune activation (MIA) and ASD-like behaviors in mouse models. In this model, the maternal immune system is activated during pregnancy by injecting the viral mimic poly(I:C). The resulting offspring are phenotyped and analyzed with regards to their communicative behaviors.

Previous studies have demonstrated that male pups born to dams with immune activation …

Effort-Related Decision Making In Comt Variant Mice: Pharmacological Studies And Genetic Susceptibility To Motivational Dysfunction, Suzanne Cayer

Honors Scholar Theses

Effort-related decision making tasks in animals can model motivational symptoms in humans, which are a set of symptoms spanning a multitude of neuropsychiatric disorders, such as major depressive disorder and the negative symptoms of schizophrenia. The present studies aimed to evaluate the effort-related effects of the Val158Met polymorphism of human catechol-methyltransferase (COMT), by testing mice carrying either the human COMT Val (n=8) or Met allele (n=8) with Wild-Type control mice (n=15) by using concurrent FR2 and FR4/pellet choice tasks in a touchscreen operant conditioning apparatus. The Val158Met polymorphism has been repeatedly associated with neuropsychiatric disorders, and the Val allele has …

The Ush2a Gene: An Analysis Of Ultrasonic Vocalizations In A Mouse Model Of Usher Syndrome Type 2, Kiana R. Akhundzadeh

Honors Scholar Theses

Usher syndrome type 2 is a complex autosomal recessive genetic disorder that is characterized by moderate to severe congenital sensorineural hearing loss, the onset of retinitis pigmentosa in the second decade of life, and in some cases, vestibular dysfunction. Mutations in the USH2A gene account for 85% of cases of type 2. The USH2A gene is responsible for encoding the protein usherin, which has an important role in the development and function of inner ear hair cells and retinal photoreceptors. Until recently, it has been believed that carriers of the USH2A mutation were phenotype free. However, recent data has suggested …

Oscillatory Activity In The Subthalamic Nucleus And Motor Cortex In A Pharmacological Model Of Parkinsonian Tremor, Aileen F. Haque

Honors Scholar Theses

Parkinson’s Disease (PD) is a motor disorder with symptoms including resting tremor, akinesia, bradykinesia, and rigidity. A major neuropathological feature of PD is degeneration of nigrostriatal dopamine (DA) neurons. The resulting DA depletions lead to the production of severe motor deficits. Pharmacological agents that reduce DA transmission can also induce these motor abnormalities. In addition to the involvement of DA, drugs acting on acetylcholine, namely cholinomimetics, can induce or exacerbate Parkinsonian symptoms. In humans, one of the main motor symptoms associated with PD is resting tremor, occurring at a frequency of 3-7 Hz. This can be modeled in rodents using …

Central Auditory Processing And The Link To Reading Ability In Adults, Lisa M. Brody

Honors Scholar Theses

What makes someone a good reader? What makes someone a poor reader? The root biological marker of reading ability has yet to be determined. Many scientists agree that phonological awareness, the understanding of speech sounds, and phonological decoding are key components of reading ability (Melby-Lervag, Lyster, & Hulme, 2012). In addition to this, new research suggests that the auditory system, specifically the timing of auditory processing in the brain, provides a crucial platform that supports the development of reading ability (Banai et al., 2009). This thesis provides empirical data to support the link between reading skill …

The Reversal Effects Of Curcumin, An Herbal Remedy, On The Impairments Induced By Vmat-2 Inhibitor Tetrabenazine, Emily Qian, Samantha E. Yohn

Honors Scholar Theses

Substantial evidence has shown that dopamine (DA), particularly in the nucleus accumbens (NAc), is involved in behavioral activation and effort-related processes, such as overcoming work related response costs. Interference with accumbens DA transmission through administration of the vesicular monoamine transportor-2 (VMAT-2) inhibitor tetrabenazine (TBZ) produces an alteration of response allocation in the concurrent FR5/chow choice procedure, biasing animals toward the lower effort alternative. It has been suggested that these drug-induced shifts in effort-related choice behavior seen in rodents are analogous to symptoms such as psychomotor retardation, anergia, and fatigue, which can be observed in people with depression and other related …

An Animal Model Of The Motivational Symptoms Of Depression: Testing The Antidepressant Desipramine On An Effort-Related Choice Task, Samantha L. Collins

Honors Scholar Theses

Patients with depression, schizophrenia, and other related disorders often show effort-related motivational symptoms such as anergia, psychomotor slowing, lassitude, and fatigue. Several studies have indicated that dopamine (DA) within the nucleus accumbens (NAc) is involved in the regulation of effort-related behavior. Interference with NAc DA alters response allocation in effort related choice procedures, biasing animals towards the alterative that can be obtained with minimal effort. Previous studies have shown that administration of the vesicular monoamine transporter-2 (VMAT-2) inhibitor tetrabenazine (TBZ) shifts behavior in rats responding on the FR5/chow choice procedure causing a decrease in lever pressing and a compensatory increase …

Anxiety Symptoms In Individuals With High Functioning Autism, Jane C. Kelleher

Honors Scholar Theses

Research indicates a complicated relationship between anxiety disorders and autism spectrum disorders (ASDs). The current study examined the relationship between anxiety symptoms and ASD in 30 Optimal Outcome (OO) individuals, 33 High Functioning Autism (HFA) individuals, and 34 Typically Developing (TD) individuals. The groups were compared on the K-SADS measure of anxiety symptoms. The HFA group presented greater anxiety than both the OO and TD groups, and the OO and TD groups only differed on one anxiety symptom. Across all three groups, there was a significant association between greater anxiety symptoms and a higher level of social and communicative impairment. …

Diagnosing The Prodromal State Of Alzheimer's Disease, Jennifer Bartkowiak

Honors Scholar Theses

Mild Cognitive Impairment- Amnestic Subtype (MCIa) is a putative prodromal stage of Alzheimer’s Disease (AD) characterized by focal deficits in episodic verbal memory. Less is known about relative deficits in visuospatial learning, although there is ample evidence indicating involvement of the hippocampus in visuospatial learning, as well as hippocampal degeneration in early AD. The aim of this study was to better characterize the components of working memory dysfunction in people with MCIa to increase the ability to reliably diagnose this disease. Fifty-six elderly adults diagnosed with MCIa and 94 healthy elderly completed a hidden maze learning task. Results indicated similar …

History Of Maltreatment And Psychiatric Impairment In Children In Outpatient Psychiatric Treatment, Kerry Gagnon

Honors Scholar Theses

There is increasing evidence that childhood victimization and attachment disruptions impact a child’s development. In this study, children and adolescents from an outpatient psychiatric clinic were assessed, measuring history of trauma, history of out-of-home placement, initial diagnoses, and CBCL internalizing and externalizing problem scores. Multiple regression analyses showed that both violent abuse trauma (physical/sexual abuse) and victim trauma (physical abuse/sexual abuse/witnessing domestic violence/witnessing community violence) are prevalent among patients with externalizing severity problems; concluding that diagnosis alone may not account for a history of victimization, but externalizing problem severity does. Overall, the study is consistent with past literature that it …

Joint Attention In Young Children With Autism, Sabrina Jara

Honors Scholar Theses

Autism spectrum disorders (ASDs) are classified as pervasive developmental disorders characterized by social, communicative, and behavioral impairments. According to formal and informal reports, children with ASD present with receptive and expressive language delay. Joint attention (JA: the behavior that occurs when two individuals focus on the same object or event) has been identified as a possible marker of delayed language development in children with ASD. In this study, the JA behaviors in children with ASD were contrasted with initially language-matched typically developing (TYP) children across three visits.

Measures of language, the frequency, duration, and source of initiation of JA episodes, …