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Theses/Dissertations

2023

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Articles 1 - 29 of 29

Full-Text Articles in Biological Psychology

Identifying Trauma Related Predictors Of Dissociation In Maltreated Youth, Amanda L. Mraz Dec 2023

Identifying Trauma Related Predictors Of Dissociation In Maltreated Youth, Amanda L. Mraz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Maltreated youth who experience traumatic dissociation are at an increased risk for various psychopathological difficulties. Much is still unknown about the machinations behind experiences of dissociation post-trauma. This study aimed to identify variables that place maltreated youth at risk for experiencing traumatic dissociation (e.g., dissociative amnesia, absorption and imaginative involvement, passive influence, depersonalization and derealization, and total adolescent dissociative experiences symptoms (A-DES)). Investigatory variables included demographic (e.g., age, gender, and racial identity), cognitive (e.g., resiliency and posttraumatic cognitions), and psychological (e.g., posttraumatic stress disorder symptoms (PTSD) and anxiety) factors. Classification and regression tree (CART) analysis was utilized to observe the …

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Repeated Treatment With 5-Ht1a And 5-Ht1b Receptor Agonists: Evidence Of Tolerance And Behavioral Sensitization, Jordan Taylor Dec 2023

Repeated Treatment With 5-Ht1a And 5-Ht1b Receptor Agonists: Evidence Of Tolerance And Behavioral Sensitization, Jordan Taylor

Electronic Theses, Projects, and Dissertations

Serotonin has been found to regulate several cognitive and physiological functions, and its role in depression and other neuropsychiatric disorders has been a focus of research. More specifically, a wealth of research regarding serotonin focuses on serotonergic medications in the treatment of neuropsychiatric disorders, such as depression and anxiety, and stimulates the 5-HT1A and 5-HT1B receptors. Within the last decade, there has been an increase in prescriptions of psychotropic medication for children, however, the efficacy and adverse effects of these drugs have not been evaluated in younger populations. While antidepressants reduce symptoms of depression in adults, they are …

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Cerebrospinal Fluid Biomarkers Not Associated With Neurologic Compromise Among Mild Cognitively Impaired Reverters With Parkinson's Disease, Cameron Ryczek Dec 2023

Cerebrospinal Fluid Biomarkers Not Associated With Neurologic Compromise Among Mild Cognitively Impaired Reverters With Parkinson's Disease, Cameron Ryczek

Electronic Theses, Projects, and Dissertations

Parkinson's Disease (PD) is a neurodegenerative disease characterized by motor (e.g. tremors) and non-motor symptoms (e.g. cognitive impairment). PD patients' change in cognitive functioning can be observed using the following classifications: cognitively intact, mild cognitive impairment (MCI), or dementia (PDD). MCI has many subtypes, one of which is MCI reversion which is defined as those with MCI at one time point reverting to cognitively intact later. While there is limited research into the utility of MCI reversion and its relationship with cerebrospinal fluid (CSF) biomarkers in PD, this study will begin to elucidate this relationship. To this end, data from …

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You Hurt My Feelings: Autonomic And Behavioral Responses To Social Exclusion And The Moderating Effect Of Psychopathic Traits, Liat Kofler Sep 2023

You Hurt My Feelings: Autonomic And Behavioral Responses To Social Exclusion And The Moderating Effect Of Psychopathic Traits, Liat Kofler

Dissertations, Theses, and Capstone Projects

Humans have a fundamental need to form and maintain social connections, and thus experiencing social exclusion is extremely distressing as it threatens this basic human need. Individuals who are socially excluded often respond aggressively, not only towards their ostracizers but also towards innocent bystanders, with ostracism being implicated in extreme acts of violence such as school shootings. However, individual differences in behavior exist within the context of social exclusion as not everyone responds aggressively after being ostracized. Identifying risk factors for retaliatory aggressive behavior following experiences of social exclusion may facilitate the development of targeted interventions aimed at mitigating such …

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The Effects Of Transcranial Direct Current Stimulation (Tdcs) On Facial Expression Approach/Avoidance In College Students And Faculty With Broad Autism Phenotype, Nicole R. Baker Aug 2023

The Effects Of Transcranial Direct Current Stimulation (Tdcs) On Facial Expression Approach/Avoidance In College Students And Faculty With Broad Autism Phenotype, Nicole R. Baker

Electronic Theses and Dissertations

Transcranial Direct Current Stimulation (tDCS) has been proposed as an alternative noninvasive therapy for individuals with autism. This study trained brain activity in college students and / or faculty with Broad Autism Phenotype (BAP) while eye tracking data was collected. The purpose of this study was to determine if tDCS training to the frontal lobes could increase approach toward social interactions in adults classified as BAP as demonstrated by eye-tracking measures in response to faces and gaze fixation. The study included 21 total participants recruited from the Science, Technology, Engineering, and Math (STEM) courses / professions at a Regional East …

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Examination Of Performance Validity And The Relationship To Cognition And Symptoms In Schizophrenia Spectrum Disorders, Erick A. Rogers Aug 2023

Examination Of Performance Validity And The Relationship To Cognition And Symptoms In Schizophrenia Spectrum Disorders, Erick A. Rogers

UNLV Theses, Dissertations, Professional Papers, and Capstones

Approximately one-in-five individuals with psychotic disorders (i.e., schizophrenia spectrum disorders [SSD]) fail performance validity indicators (PVIs) during neurocognitive testing. Ensuring the validity of neurocognitive test results is necessary if the test scores are to be of use for diagnostic consideration, intervention selection and planning, predicting outcomes, and following changes in cognition over time in response to intervention, spontaneous recovery, or disease progression. PVIs are designed to require only a minimum level of engagement with the evaluation, which means nearly everyone is expected to “pass,” even those with moderate to severe brain damage. Traditional interpretations of PVI failure suggest a noncredible …

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Adverse Childhood Experiences(Aces) And Nonverbal Reasoning Skills, Monika Malinowska Jun 2023

Adverse Childhood Experiences(Aces) And Nonverbal Reasoning Skills, Monika Malinowska

Dissertations

Severe stress and interpersonal traumatic experience in childhood have a cascade effect on an individual's physical and mental health. There is evidence that people with complex adverse childhood experiences have diminished cognitive abilities. However, there are few studies on the effects of Adverse Childhood Experiences (ACE) on non-verbal reasoning skills. This study aimed to assess the relationships between ACEs, non-verbal reasoning skills, and academic achievement.

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Sucrose Demand And Essential Value In Mice With Early-Life Exposure To Risperidone, Megan Federoff May 2023

Sucrose Demand And Essential Value In Mice With Early-Life Exposure To Risperidone, Megan Federoff

LSU Master's Theses

Second-generation antipsychotics (SGAs), such as risperidone, are widely prescribed to children, but the long-term effects of SGA treatment are not well understood. This study investigated the impact of early-life risperidone treatment on sucrose demand in mice in adulthood. Mice were administered risperidone or vehicle from postnatal day (PND) 33 to 60 and trained in adulthood (>PND 120) to nose poke for a sucrose solution reinforcer. The fixed ratio (FR) value (the number of responses required to produce sucrose delivery; the “price” of sucrose) was varied from 1 to 45, and the resulting consumption versus FR value data were analyzed …

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Working Memory And Language Associations In Children With Autism Spectrum Disorder, Megan A. Goldfarb May 2023

Working Memory And Language Associations In Children With Autism Spectrum Disorder, Megan A. Goldfarb

University of New Orleans Theses and Dissertations

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impairments in social communication and interaction, with repetitive behaviors or specialized interests. A range of language abilities is seen in ASD, with some having typical abilities and others severe impairments. Working memory (WM) deficits have also been found in some children with ASD. In typically developing, as well as non-ASD children with language deficits a strong relationship has been found between WM and language abilities. Although both language and WM deficits are often seen in ASD, the relationship between these deficits has been underexplored. The objective of this study is …

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Exploring The Intersectionality Between Homelessness And Addiction: A Review, Antonia Miranda May 2023

Exploring The Intersectionality Between Homelessness And Addiction: A Review, Antonia Miranda

Honors Projects

The homelessness crisis and drug epidemic have been, and continue to, ravage the nation in a manner that is both detrimental to society and humanity. The correlation between substance abuse and homelessness is enormous, though not necessarily causal. The conditions of being homeless coupled with the prevalence of mental illness drastically increases the susceptibility to substance abuse and addiction. On the other hand, addiction and substance abuse can contribute to someone entering homelessness. The intersectionality between the two is frequently ignored, yet critical to address. Informed by research regarding both conditions, the implications for public policy and reform are huge. …

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Self-Confidence And Hormonal Contraceptive Use, Abigail Doran May 2023

Self-Confidence And Hormonal Contraceptive Use, Abigail Doran

Biological Sciences Undergraduate Honors Theses

Hormonal contraceptives are widely used to regulate menstrual cycles, alleviate certain symptoms linked to reproductive hormones, and prevent pregnancy. However, women who take hormonal contraceptives may experience significant physical and psychological side effects such as increased rates of depression and changes in self-image. The current study examined self-confidence in women before beginning hormonal contraceptives and two months after using them. These participants were compared to a control group of naturally cycling women who were also assessed twice. I hypothesized that women would experience decreased feelings of self-confidence in several domains of their lives, compared to the naturally cycling women. Results …

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Does A Single Night Of Mindfulness Meditation Improve Sleep And Stress In Female College Students?, Koushik Thudi May 2023

Does A Single Night Of Mindfulness Meditation Improve Sleep And Stress In Female College Students?, Koushik Thudi

Psychological Science Undergraduate Honors Theses

Several recent studies have shown that mindfulness-based practices have been effective in treating sleep problems. However, these studies have primarily looked at multi-component interventions that take place over several weeks or months. No studies have evaluated the efficacy of short-term mindfulness-based practices on sleep the same night. This study aims to do just that. The sample consisted of 10 students attending the University of Arkansas. All participants slept in a sleep laboratory on two consecutive weekday nights. During one night, they completed a mindfulness-based exercise. The other night, they completed a similar control task (counterbalanced). Polysomnography-based sleep data were collected …

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Anxiety-Like Behavior In C57bl/6j Mice Is Sexually Dimorphic And Altered By Buprenorphine, Ohm Sharma May 2023

Anxiety-Like Behavior In C57bl/6j Mice Is Sexually Dimorphic And Altered By Buprenorphine, Ohm Sharma

Chancellor’s Honors Program Projects

No abstract provided.

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The Project That Claire, Uh I Mean The Student Completed: Relative Clauses And Repair Disfluencies, Claire O’Shaughnessy Apr 2023

The Project That Claire, Uh I Mean The Student Completed: Relative Clauses And Repair Disfluencies, Claire O’Shaughnessy

Honors Theses

Several areas of psycholinguistics focus on the role of memory in language processing. Two of these areas are repair disfluencies and complex syntactic structures; however, these two topics have traditionally been investigated completely separately from one another. The current experiment combines these two topics by presenting listeners with spoken sentences containing subject-extracted relative clauses (SRCs) and object-extracted relative clauses (ORCs) in which the semantic similarity between the critical noun phrases (NPs) was manipulated. In addition, the sentences could be spoken fluently, or there could be a repair disfluency in which the reparandum contained information that would be potentially helpful in …

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Trait Sadism In Bdsm Practitioners And Non-Practitioners, Marley Russell Apr 2023

Trait Sadism In Bdsm Practitioners And Non-Practitioners, Marley Russell

Psychology ETDs

Sadism is an elusive construct within psychology. Multiple types are studied without clear psychometric or theoretical distinctions, and operationalizations of these respective sub-constructs lack validity. This study explores the empirical distinction between two sadism types: consensual sexual sadism (i.e. in the context of BDSM) and trait sadism. Trait sadism is widely synonymized with “everyday sadism”, but here conceptualized as a higher-order construct encompassing both everyday and a novel “prosocial sadism”. I develop and pilot the BDSM Identities and Behaviors (BIB) checklist in a sample of BDSM practitioners. I then compare those practitioners to non-practitioners on trait sadism and dark triad …

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Working Memory During The Menstrual Cycle: A Study Of The Role Of The Different Phases Of The Menstrual Cycle On Working Memory, Daniella Brownrigg Apr 2023

Working Memory During The Menstrual Cycle: A Study Of The Role Of The Different Phases Of The Menstrual Cycle On Working Memory, Daniella Brownrigg

Brescia Psychology Undergraduate Honours Theses

This study investigated the role of the menstrual cycle phases (Follicular, Luteal and Menstruation) on working memory components (verbal and visuospatial). Eighty-eight undergraduate students attending Brescia University college completed a survey regarding: demographics, menstrual cycle information and working memory cognitive tasks. The cognitive tasks were the Corsi Block Tapping Test and a shorter version of the Hooper Visual Organization test for visuospatial working memory; and the Forward Digit Span Test and the Semantic Verbal Fluency Subset: Animals from the Barcelona Test for verbal working memory. Participants were categorized into the different menstrual phases they were experiencing. No significant differences were …

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Relation Between Parent Feeding And Emotional Overeating In Preschoolers As Mediated By Emotion Regulation, Lindsay Nicole Baker Jan 2023

Relation Between Parent Feeding And Emotional Overeating In Preschoolers As Mediated By Emotion Regulation, Lindsay Nicole Baker

UNF Graduate Theses and Dissertations

Emotional overeating is defined as eating in response to negative emotions, and the shift from emotional undereating to overeating around the preschool years indicates environmental influences. Parent feeding practices such as using food to regulate emotions and behavior may impede children’s ability to regulate their emotions, leading to emotional overeating. This study analyzed the relation between parent feeding practices, child emotion regulation, and emotional overeating in 4- and 5-year-old children. For study 1, mothers of 4- and 5-year-old children completed online questionnaires through MTurk and Prolific. Questionnaires measured parent feeding practices, emotion regulation, and emotional overeating. Parent use of food …

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A Culturally Responsive Evaluation Lens To Logic Model Design, Ciara Cascharelle Knight Jan 2023

A Culturally Responsive Evaluation Lens To Logic Model Design, Ciara Cascharelle Knight

CGU Theses & Dissertations

Culturally responsive evaluation (CRE) is an approach that centers all evaluation processes around the culture of a program’s secondary stakeholders. Specifically, this entails ensuring shared meanings in a group through communication. However, minimal connections have been made between CRE and logic model designs. Logic models commonly used by evaluators are data visualization and communication tools designed to aid in effectively communicating a program’s theory. Nevertheless, little is understood about the role culture plays in this process. This multiphase mixed methods study explored the integration of CRE to logic model designs using individualism and collectivism (IC) as a construct for culture …

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The Feeling Of Control: The Psychology Behind Immersive Controls In Video Games And Their Real World Effects, Atom Orbit Carrasco Jan 2023

The Feeling Of Control: The Psychology Behind Immersive Controls In Video Games And Their Real World Effects, Atom Orbit Carrasco

Senior Projects Spring 2023

There is a phenomenon that can occur while playing video games where the player begins to feel similar sensations to the player character. This phenomenon, unnamed until now, has very little research directly related to it. There is plenty of indirect research that can be applied to this phenomenon, now called sensation mirroring. A review of both cognitive and psychobiological literature allows for major connections between human functions and how they interact with video game control schemes to be drawn. These connections help form a potential theory on the mechanisms of sensation mirroring and provide directions for future research on …

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Examining Allostatic Load As A Biological Mechanism Linking Childhood Adversity And Pediatric Pain, Angela Pascale Jan 2023

Examining Allostatic Load As A Biological Mechanism Linking Childhood Adversity And Pediatric Pain, Angela Pascale

Theses and Dissertations

Despite a strong literature base relating childhood adversity to pain, the biological mechanisms underlying these associations remain unclear. Theoretical and preliminary empirical evidence supports allostatic load as a potential biological mechanism, though prior studies investigating associations between childhood adversity and elevated allostatic load and/or between elevated allostatic load and poorer pain outcomes have primarily focused on adult populations and individual allostatic load indicators rather than a comprehensive index. Thus, the current study built upon prior literature by testing longitudinal relationships between childhood adversity and multiple biological indicators spanning across physiological systems (i.e., comprehensive allostatic load index) and pediatric pain outcomes …

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Physiological Responses Regarding Stress And Trauma: The Freeze Response, Emma Arie Von Holten Jan 2023

Physiological Responses Regarding Stress And Trauma: The Freeze Response, Emma Arie Von Holten

UNF Graduate Theses and Dissertations

Fight-or-flight is a commonly known response to threatening situations, but the freeze response is another defensive mechanism that might arise in such situations. There is also evidence that exposure to trauma can impact physiological reactions when defensive mechanisms are not required, such as freezing in response to non-threatening situations. The current study aimed to replicate and expand upon a limited number of previous studies on the human freeze response by implementing measurements of postural sway, heart rate, and infrared thermography while valenced images were shown to participants. Ninety-two participants were recruited from the University of North Florida and participants were …

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Is The Area Postrema Resistant To The Anesthetic Effects Of Ms-222?, Austin T. Csiszar Jan 2023

Is The Area Postrema Resistant To The Anesthetic Effects Of Ms-222?, Austin T. Csiszar

Cal Poly Humboldt theses and projects

MS-222 is a common fish anesthetic that dampens neural activity by inhibiting neuronal voltage-gated sodium channels (Nav) required for action potentials. Previous experiments conducted by our lab’s primary investigator using fluorescence calcium imaging in zebrafish neurons resulted in the observation that neurons in the area postrema (AP), a circumventricular organ located in the dorsal hindbrain, displayed prominent fluorescence intensity during MS-222 induced sedation. I used the genetically encoded calcium indicator GCaMP6s to conduct fluorescence calcium imaging with the goal of recording neural activity in the larval zebrafish area postrema and optic tectum to compare the anesthetic effects of …

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Individual Differences In The Coordinated Behavioral And Physiological Immune Response To Pathogenic Threat, Edwin Joel Rosales-Vijil Jan 2023

Individual Differences In The Coordinated Behavioral And Physiological Immune Response To Pathogenic Threat, Edwin Joel Rosales-Vijil

Cal Poly Humboldt theses and projects

Previous research has shown that simply viewing a pathogenic threat (e.g., a photo of someone sneezing) can trigger our immune systems to activate. Activation of the immune system can be measured through a variety of physiological markers, including inflammatory cells (i.e., cytokines) in the blood or saliva. The current study aims to replicate that finding that viewing pathogen-relevant images will trigger an immune response, and extend this work by investigating whether individual differences in perceived vulnerability to disease impacts the size of this immune response.

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Vapourized Cannabis Extract Administration Impairs Memory And Alters Neural Activity In Laboratory Rats, Megan Chladny Jan 2023

Vapourized Cannabis Extract Administration Impairs Memory And Alters Neural Activity In Laboratory Rats, Megan Chladny

Theses and Dissertations (Comprehensive)

Although people have smoked cannabis for millennia, administration of cannabis by heating the dried plant material or distilled extracts to a temperature just below the combustion point (i.e., vapourization or "vaping") has rapidly increased over the past few years (Javadi-Payder, Cole, and Taffe, 2018; Manwell, Charchoglyan, Brewer, Matthews, Heipel, and Mallet, 2014). Conversely, most of the cannabinoid research using rodent models has used parenteral routes of administration to examine the effects of purified cannabis extracts such as ∆9-tetrahydrocannabinol (THC), making it difficult to directly compare laboratory research to human drug use. Building on previous studies showing that THC …

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Between Choice And Compulsion: An Examination And Critique Of The Evolution Of 'Original Sin', Matthew James Wynn Jan 2023

Between Choice And Compulsion: An Examination And Critique Of The Evolution Of 'Original Sin', Matthew James Wynn

MSU Graduate Theses

“Why are we the way that we are?” is one of the hardest questions to answer because it requires grasping the origin of human beings. This has left philosophers and theologians in century-long debates on forming a “cosmogony of ontology” (i.e., how the origin of the universe informs the human condition). The concept, “original sin” was developed by a North African theologian named Augustine (354 – 430 CE). Augustine’s reading of Genesis 3, and inaccurate translation of Romans 5:12, taught that a person is born morally culpable for a fault antecedent to their existence. This way of thinking about the …

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Calcium Imaging Of Central Amygdala Activity After Fentanyl Escalation, Samantha Malone Jan 2023

Calcium Imaging Of Central Amygdala Activity After Fentanyl Escalation, Samantha Malone

Theses and Dissertations--Psychology

Evidence suggests that rats given long access (LgA) sessions to self-administer (SA) opioids escalate their intake, while also showing greater withdrawal severity and drug-induced reinstatement compared to rats maintained on short access (ShA) daily SA sessions. Little is known about the neural changes that occur during opioid escalation that may impact withdrawal and relapse. Past work examining opioid SA using ShA sessions in rodents has identified the central amygdala (CeA) as an area of interest that becomes hyperactive in acute withdrawal and may be involved in the incubation of craving that occurs after protracted withdrawal. However, these studies have not …

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Effects Of Atomoxetine On Circadian Rhythms And Locomotor Activity, Rhiannon Ryder Crimmins Jan 2023

Effects Of Atomoxetine On Circadian Rhythms And Locomotor Activity, Rhiannon Ryder Crimmins

Cal Poly Humboldt theses and projects

Background: Attention deficit hyperactivity disorder (ADHD) is a common neurological disorder characterized by inattention, hyperactivity, and impulsive behavior. Many people with ADHD who are taking pharmacological treatments also report having sleep problems, and both children and adults tend to fall asleep later than neurotypical people. Since diagnosis and treatment of ADHD are on the rise, understanding how the disorder and common medications influence circadian rhythms is becoming more important. Zebrafish are a common animal model that have been shown to reliably represent features of many human disorders, including ADHD. Hypothesis: The specific hypotheses tested were: (H1) that a …

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Preimplantation Genetic Testing For Neurobehavioral Traits, Peter K. Zeller Jan 2023

Preimplantation Genetic Testing For Neurobehavioral Traits, Peter K. Zeller

Cal Poly Humboldt theses and projects

Differences in behavioral and mental health traits result from unique interactions of genetic and environmental factors. Genetic information has improved along with technological advancements allowing for more data points to be established and increased data resolution. Because of this, there is a greater ability to identify embryos that carry genetic risk. The approach of Preimplantation Genetic Testing (PGT) is routine for certain genetic diseases but has not been widely used for psychiatric or behavioral traits. This paper critically examines the potential application of PGT-P by focusing on one main example, Alzheimer’s disease (AD). AD is the most prevalent form of …

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Effects Of Development On Hpa Function Following Pubertal Stress, Brittany D. Elliott Jan 2023

Effects Of Development On Hpa Function Following Pubertal Stress, Brittany D. Elliott

Graduate Theses, Dissertations, and Problem Reports

For women, two of the greatest risk factors for affective disorders are adversity experienced during puberty and later becoming pregnant. We have created a translationally relevant mouse model where we address these complex risk factors. Previously, we discovered that pregnant mice (dams) that experienced chronic variable stress (CVS) during puberty display a blunted hypothalamic-pituitary-adrenal (HPA) response when exposed to an acute stressor. Interestingly, this alteration only first becomes apparent during pregnancy, which is a sensitive period for these effects due to normative neuroendocrine changes. Further investigation of the mechanisms underlying this dysfunction revealed altered gene expression in the paraventricular nucleus …

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