Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray

Journal of Humanities and Social Sciences

The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …

Methylation Of The Dat1 Dopamine Transporter Gene In Combat Sport Athletes: Associations With Impulsivity And Reward Sensitivity, Milena Lachowicz, Remigiusz Recław, Aleksandra Suchanecka, Krzysztof Chmielowiec, Elżbieta Grzywacz, Jolanta Chmielowiec, Kinga Łosińska, Anna Grzywacz

Baltic Journal of Health and Physical Activity

Epigenetic mechanisms, such as DNA methylation, modulate behavioral traits, including impulsivity and reward sensitivity. The dopamine transporter gene (DAT1) plays a key role in dopaminergic function and is associated with self-regulation, attention, and the trait of addiction. This study summarized the DAT1 methylation status in patients practicing combat sports and its association with impulsivity, ADHD symptoms, and consequence sensitivity. One hundred control subjects were recruited using the Barratt Impulsivity Scale (BIS), the ADHD scale, and the Opportunity Response Scale. DAT1 methylation was measured using the bisulfite ionization method. A correlation analysis was performed with the comparison group. Athletes …

Neonatal Striatal Volume Is Associated With Infant Anhedonia, Melissa Nevarez-Brewster, Catherine H. Demers, Jessica L. Irwin, Laura M. Glynn, Martin A. Styner, Mercedes Hoeflich Haase, M. Camille Hoffman, Diego A. Pizzagalli, Benjamin L. Hankin, Elysia Poggi Davis

Psychology: Faculty Scholarship

Anhedonia is increasingly recognized as a transdiagnostic risk factor for psychopathology. New evidence demonstrates that anhedonia is present in infancy and early childhood. Structural variability in striatal regions involved in reward processing and pleasure seeking is concurrently linked to anhedonia, yet few studies have examined whether striatal differences presage anhedonia, and none have examined prospective associations before middle childhood. The present study examined whether neuroanatomical markers that confer risk for anhedonia can be detected as early as the neonatal period. Specifically, we tested whether the volume of striatal regions in neonates predicted the emergence of infant anhedonic behaviors at six …

Understanding Biological Behavior 2nd Edition, Emily Marler

Open Educational Resources Collection

Understanding Biological Behavior, 2nd Edition, compiled by Emily Marler in collaboration with UMSL Libraries, is a Open Educational Resource (OER) that offers free access to an engaging exploration of where biology and psychology intersect. As an openly licensed textbook, it removes financial barriers to quality education while helping students understand how our biological systems directly influence our thoughts, emotions, and behaviors.

The web version of this text can be found at https://umsystem.pressbooks.pub/ubb2e/

This resource systematically progresses through twelve carefully structured units that build upon each other to create a complete understanding of biological psychology. Beginning with fundamental concepts of nerve …

Electrophysiological Markers Of Emotion Dysregulation In Autistic Youth, Rachel G. Mcdonald

Theses, Dissertations and Culminating Projects

Emotion dysregulation (ED) is a transdiagnostic mechanism that is conceptualized as difficultly regulating emotions and deploying appropriate regulation strategies in response to environmental stimuli. Meta-analyses suggest that autistic people, across the lifespan, experience more severe ED as compared to both neurotypical people and those with mental health conditions. Despite elevated risk and evidence linking ED to disruptions in neural mechanisms, no studies to date have examined neural markers of ED in autistic populations. The current project uses multi-method and multi-informant measurement to examine similarities and differences in neural mechanisms of ED in autistic and non-autistic populations. Forty-four youth aged 11—17 …

Hormonal Modulation Of Sexual Approach And Avoidance Among Women With A History Of Sexual Trauma, Anneliis Susan Sartin-Tarm

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

A history of sexual trauma places women at a high risk for sexual dysfunction and other health sequelae, yet the influence of ovarian hormones in this population is poorly understood. This dissertation tested the theory that the effects of ovarian hormones are mediated by cognitive approach-avoidance systems to shape sexual well-being, and that this process is moderated by sexual trauma history. This was investigated across three studies examining the menstrual cycle, hormonal contraceptive use, and menopause. Across each chapter, I present complementary evidence demonstrating that hormones interact with the interpretation of ambiguous internal and external cues with respect to sexual …

Dermatoglyphic Fluctuating Asymmetry In Schizotypy, Marcus R. Thomas

All-Inclusive List of Electronic Theses and Dissertations

Schizotypy has been linked with many of the proposed endophenotypes of schizophrenia, but research is limited on the relationship between schizotypy and dermatoglyphic fluctuating asymmetry. The present study sought to examine relationships between schizotypy, dermatoglyphic fluctuating asymmetry, handedness, and season of birth. 146 undergraduate students were identified as schizotypes (n = 52) or controls (n = 94) based on the Multidimensional Schizotypy Scale and had their finger and palm prints collected along with completing additional measures of schizotypy and handedness. Schizotypes did not exhibit a greater degree of dermatoglyphic fluctuating asymmetry, negative schizotypy was associated with increased absolute finger ridge …

Two Essays On The Role Of Anthropomorphism In Consumer Behavior, Faegheh (Faa) Taheran

Theses and Dissertations in Business Administration

The first essay of this dissertation investigates the contradictory findings on the relationship between anthropomorphism and self-control by focusing on how everyday anthropomorphized objects, rather than the products being used for consumption, influence consumer behavior. While previous studies have shown that using anthropomorphized products may decrease consumers’ self-control, this paper examines how unrelated [to consumption] anthropomorphized objects in a consumer’s environment—such as a water bottle with a humanlike face—can evoke a sense of social presence, increasing consumers’ perceptions that they are being negatively evaluated. Drawing on mind perception theory, I propose that this fear of negative evaluation can enhance self-control. …

Beyond The Genome: The Racialized Exposome, Flourishing, And Stress Biology In African Americans, A Non-Exhaustive Review, Enye Washington

University Honors Theses

Racial health disparities remain an enduring challenge in the United States, disproportionately impacting African American communities through higher rates of chronic disease and premature mortality. This non-exhaustive literature explores how the racialized exposome - a term denoting the totality of social, environmental, and structural stressors rooted in systemic racism - biologically embeds itself via stress-responsive pathways. Specifically, it examines the interaction between racial stress, flourishing, and key biological markers, including allostatic load and telomere length, considering the gut-brain axis. The review highlights robust evidence that chronic exposure to racial discrimination and structural adversity contributes to multisystem dysregulation and accelerated cellular …

The Neurobehavioral Consequences Of Prenatal Opioid Exposure On The Play Behavior Of Juvenile Rats, Rebecca S. Smart

Dissertations, Theses, and Capstone Projects

Prenatal opioid exposure has increased as a consequence of both increased Opioid Use Disorder (OUD) and prescription use for treatment of pain and OUD. However, human studies on prenatal opioid exposure are complicated by several confounding variables and thus, use of an animal model can lessen these confounds. Illicit use of opioids produces fluctuating blood levels whereas prescribed use of opioids results in stabilized blood levels of opioids. Our first study sought to determine if different methods of opioid administration, resulting in differing blood levels of opioids, would impact social play, a developmentally important behavior that is modulated by the …

Neuroanatomical And Morphometric Differences In Children Who Stutter, Mohammad A. Khan

Honors Scholar Theses

Childhood-Onset Fluency Disorder commonly known as stuttering is a neurodevelopmental speech disorder characterized by disruptions in speech fluency. While genetic and neurobiological factors are implicated, the structural brain differences underlying stuttering remain unclear. This study investigated neuroanatomical alterations in children who stutter (CWS) compared to typically fluent children (TFC), focusing on gray matter volume, cortical thickness, and surface area in speech-related regions; the Inferior Frontal Gyrus, Middle Temporal Gyrus, and Pre-motor Operculum. High-resolution MRI data from 100 children (48 CWS, 52 TFC) aged 3–12 years were analyzed using FreeSurfer. Group comparisons revealed no statistically significant differences in cortical thickness, surface …

Claiming More To Cope: Does Ostracism Increase Overclaiming?, Katy Q. Chen

Honors Theses

In a pre-registered online study, we investigated the relationship between ostracism and overclaiming. Ostracism is the act of deliberately or unintentionally excluding and ignoring others. Overclaiming refers to the behavior of exaggerating one’s knowledge or familiarity with specific topics, often as a way of attempting to present oneself as more knowledgeable or competent than one actually is. Drawing from the temporal need-threat model, we hypothesized that ostracized individuals, as a compensatory response, would likely overclaim more compared to included individuals. This online study simulated a work experience where participants were asked to answer questions about their work-related experiences and opinions. …

Fear Of Pain In Migraine: Psychological Factors In Perceptions Of Headache Triggers, Sarah Basha, Todd Smitherman

Honors Theses

Migraine is a debilitating neurological disorder affecting millions worldwide, with substantial societal and personal burdens. Psychological factors, particularly fear of pain, may influence migraine experience by impacting perceptions of headache triggers. This study investigates the relationship between fear of pain and perceived triggers in individuals with migraine. A sample of 2,959 young adults meeting diagnostic criteria for migraine completed a structured diagnostic interview and self-report measures of fear of pain, headache-related disability, and beliefs about headache triggers (which stimuli triggered headache, most important triggers, and likelihood of developing a headache upon exposure to the most important trigger [trigger potency]). Linear …

Poor Sleep Quality Is Associated With Decreased Structural Coherence Of Mesolimbic Dopamine Projections In Children, William A. Walker

Psychological Science Undergraduate Honors Theses

Insomnia is the second most common mental disorder that affects approximately 10% of the population. An additional one-third of the population experiences occasional symptoms of insomnia like difficulty falling asleep or staying asleep. Sleep quality is also a key indicator of overall mental and physical health; however, researchers have only begun to study the effects of the structure of the mesolimbic pathway on sleep cycle regulation and quality. Emerging research suggests that mesolimbic dopamine projections from the Ventral Tegmental Area (VTA) to the Nucleus Accumbens (NAcc) play a role in sleep-wake regulation. In this study, I analyzed data from the …

Behavioral Factors Contributing To Initiation And Maintenance Of Adolescent Alcohol Consumption In Rats, Alexandra N. Tejada

Electronic Theses, Projects, and Dissertations

Adolescent alcohol consumption is a prevalent and significant public health issue. This exposure to alcohol leads to an increased vulnerability to alcohol use disorder (AUD) or other cognitive deficits later in adulthood. The current study aimed to explore the behavioral and circadian factors contributing to the initiation and maintenance of alcohol consumption during adolescence in rats. We investigated whether the baseline social aggression, anxiety-like behaviors, working memory, and sleep/wake activity patterns could be predictors of adolescent ethanol intake. Male and female Long Evans rats (N=36) were tested in the following behavioral assays: social play, open field, and spontaneous alternation tasks, …

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 …

Atypical Morphometry And Connectivity Of The Cortico-Striatal-Thalamo-Cortical Circuit In Children And Adolescents With Chromosome 22q11.2 Deletion Syndrome: A Population At Ultra-High Risk For Developing Obsessive-Compulsive And Schizophrenia Spectrum Disorders, Amanda I. Rowan

LSU New Orleans Theses and Dissertations

Chromosome 22q11.2 deletion syndrome (22q11.2DS) is a complex neurodevelopmental disorder associated with serious medical, cognitive, and psychiatric conditions, including significantly elevated risk for obsessive-compulsive (OCD) and/or schizophrenia spectrum disorders (SCZ). The cortico-striato-thalamo-cortical (CSTC) neural circuit is critical for cognitive and emotional processing. Dysfunction of the CSTC circuit is implicated in the etiopathology of both OCD and SCZ but has not been specifically examined in individuals with 22q11.2DS. This study used structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI), along with standardized psychological and cognitive measures, to investigate atypical morphometry and white matter connectivity within CSTC-related brain regions in …

Prenatal Development, Huda Abu-Suwa, Lisa K. Lashley, Charles J. Golden

Essays in Developmental Psychology

Prenatal refers to the period of time between conception and birth. As such, prenatal development is the process in which a fetus develops in its mother’s womb. This period typically lasts nine months. Prenatal development can be divided into three stages: the germinal stage, the embryonic stage, and the fetal stage (Lally & Valentine-French, 2019).

Heredity, Chris Burley, Lisa K. Lashley, Charles J. Golden

Essays in Developmental Psychology

Heredity is the sum of biological processes that result in the transmission of genetic traits from parents to their offspring, making each individual unique. Through the transmission of genetic traits, heredity is responsible for each individual’s genotype, as well as his or her phenotype. The genes that are passed down from generation to generation have a considerable influence on psychological characteristics including intelligence, personality, mental health, and patterns of behavior. However, when considering psychological characteristics passed down through heredity, it is vital that environmental aspects are also considered.

Bio-Physiological Development During Adulthood, Maria Boix Braga, Charles J. Golden, Lisa K. Lashley

Essays in Developmental Psychology

Defining adulthood, and what the criteria truly is to be able to consider oneself an adult, varies from culture to culture. Biologically, adulthood can also be defined as the period in which full physical and intellectual maturity has been attained. It is a period that is defined slightly differently depending on the source, but it is agreed that it tends to be considered the life period between ages 18 and 60. However, the definition of adulthood can have varying legal and sociocultural factors as well. For example, the legal definition of an adult is a person who has reached the …