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Latent ;Toxoplasma Gondii; Infection Moderates The Association Between The C677t Mthfr Polymorphism And Cognitive Function In U.S. Adults, Andrew Nathan Berrett

Theses and Dissertations

Sufficient blood concentrations of folate and the products from its metabolism arenecessary for several cellular functions. The C677T MTHFR polymorphism, present in over halfof the U.S. population, reduces the efficiency of folate metabolism and has been linked to theonset of multiple psychiatric disorders and cognitive decline. The intracellular parasiteToxoplasma gondii can infect the human brain and is associated with increased prevalence ofpsychiatric disorders and cognitive decline. In vitro studies have found that Toxoplasma gondiimay salvage unmetabolized folate from host cells. Since the C677T MTHFR polymorphism andinfection by Toxoplasma gondii both affect folate metabolism or availability, I used data fromthe third …

Latent Toxoplasma Gondii Infection Moderates The Association Between The C677t Mthfr Polymorphism And Cognitive Function In U.S. Adults, Andrew Nathan Berrett

Theses and Dissertations

Sufficient blood concentrations of folate and the products from its metabolism are necessary for several cellular functions. The C677T MTHFR polymorphism, present in over half of the U.S. population, reduces the efficiency of folate metabolism and has been linked to the onset of multiple psychiatric disorders and cognitive decline. The intracellular parasite Toxoplasma gondii can infect the human brain and is associated with increased prevalence of psychiatric disorders and cognitive decline. In vitro studies have found that Toxoplasma gondii may salvage unmetabolized folate from host cells. Since the C677T MTHFR polymorphism and infection by Toxoplasma gondii both affect folate metabolism …

An Investigation Into The Test-Retest Reliability Of The Scale Of Accurate Personality Prediction With A Six Week Interval, Jared Marshall Barrow

Theses and Dissertations

The Scale of Accurate Personality Prediction (SAPP) is a measure to determine the accuracy of an individual’s ability to predict his/her own personality traits. Previous studies have demonstrated the validity of SAPP as a measure, and this study serves as one in a series of study on the reliability of the SAPP. To establish the test-retest reliability of the SAPP, the SAPP scores of 22 participants were calculated from two testing trials separated by a six week interval. A Pearson correlation indicated a significant correlation of moderate strength between the SAPP scores from the two testing trials (r=.572, p<0.01). The implication of these results within the context of the previous test-retest reliability studies and limitations to the current study are discussed.

The Evolutionary Mismatch Hypothesis: Implications For Psychological Science, Norman P. Li, Mark Van Vugt, Stephen M. Colarelli

Research Collection School of Social Sciences

Human psychological mechanisms are adaptations that evolved to process environmental inputs, turning them into behavioral outputs that, on average, increase survival or reproductive prospects. Modern contexts, however, differ vastly from the environments that existed as human psychological mechanisms evolved. Many inputs now differ in quantity and intensity or no longer have the same fitness associations, thereby leading many mechanisms to produce maladaptive output. We present the precepts of this evolutionary mismatch process, highlight areas of mismatch, and consider implications for psychological science and policy.

Helicobacter Pylori Moderates The Association Between 5-Mthf Concentration And Cognitive Function In Older Adults, Bruce L. Brown, Andrew N. Berrett, Shawn D. Gale, Lance D. Erickson, Dawson W. Hedges

Faculty Publications

Objective: To explore potential interactions between folate-cycle factors and Helicobacter pylori seropositivity in the prediction of cognitive function. Methods We used data obtained from the 1999–2000 continuous National Health and Nutrition Examination Survey produced by the United States’ Centers for Disease Control and Prevention. Using Ordinary Least Squares regression, we tested for associations between multiple folate-cycle factors, Helicobacter pylori seropositivity, and cognitive function assessed by the digit symbol coding subtest of the Wechsler Adult Intelligence Scale-III. We then tested for interactions between each of the folate-cycle factors and Helicobacter pylori in the prediction of cognitive function.

Results: Although Helicobacter pylori …

Patient Perspectives On Adherence To The New Hepatitis C Antiviral Medications: ‘A New Lease On Life’, Nicole M. Giordano, Anthony J. Brinn, Guadalupe Garcia-Tsao, Steve Martino

The Qualitative Report

This study explored patients’ perspectives about taking the new direct-acting antivirals (DAAs) for the treatment of Hepatitis C (i.e., sofosbuvir, simeprevir, ledipasvir/sofosbuvir, ombitasvir/paritraprevir/ritonavir and dasabuvir) to identify facilitators of medication adherence. The project was conducted using semi-structured interviews with 12 Veterans who successfully completed a treatment course on the new DAAs. The Veterans were recruited using purposive sampling. The data collected from the semi-structured interviews was analyzed using an adapted open coding method outlined by Auerbach and Silverstein (2003), with identification of relevant text sub-grouped into repeating ideas, and then creation of overarching themes and constructs. Results obtained provide insight …

Health-Related Quality Of Life In Patients With Arthritis: A Cross-Sectional Survey Among Middle-Aged Adults In Chongqing, China, Yunshuang Rao, Xianglong Xu, Dengyuan Liu, Cesar Reis, Ian M. Newman, Liqiang Qin, Manoj Sharma, Jun Shen, Yong Zhao

Department of Educational Psychology: Faculty Publications

Background: Arthritis is a common disease in China, but few studies have been conducted to explore the associated health-related quality of life (HRQoL) and its influencing factors in Chongqing, China. This study aimed to explore the association of arthritis and HRQoL and probe factors affecting HRQoL among arthritis patients. Methods: A cross-sectional survey was conducted in Chongqing, China. A total of 1224 adults were included in the analysis. Medical Outcomes Study Short Form 36 Health Survey (SF-36) was used to measure HRQoL. Multiple linear regression models (stepwise) and covariance analysis models were used to examine the association of arthritis with …

An Examination Of A Mindfulness-Based Intervention For Older Adults, Morgan Levy

Theses and Dissertations

Mindfulness-based interventions use meditation and other learning exercises to help individuals become more aware of their current physiological and emotional experiences. Benefits of practicing mindfulness include an increase in positive psychological outcomes (e.g., psychological well-being, emotion regulation) and a decrease in negative psychological outcomes (e.g., anxiety, depression). The vast majority of studies focus on younger rather than older adults—setting the stage for the current study, which involved delivering a five-session mindfulness-based intervention to older adults (i.e., 60 and older). The smaller literature focused on older adults is promising but generally lacks methodological rigor (e.g., lack of no-treatment control groups). The …

Psychotropic Medications And Children: Perceptions Of Mental Health Professionals, Elinor Jane Brereton

Electronic Theses and Dissertations

This project explores mental health professionals' perspectives on the prescription of psychotropic medications to children. It emphasizes the placement of biomedicine within its larger social, economic, and political context, and the influence these structures have on the way mental illness is conceptualized and treated in children. Eight semi-structured interviews were conducted in Denver, Colorado with psychiatrists, psychologists, social workers, and a pharmaceutical board member to capture multiple perspectives from different positionalities within the field. Participants discussed factors that they believe influence prescribing practices including: professional role changes, issues of access, limited evidence, cost, and institutional pressures to practice within a …

An Assessment Of Health Disparities Among A Community Sample Of Lgbq College Students, Ashlee Sawyer, Paul Perrin, Eric Benotsch

Psychology Publications

Lesbian, gay, bisexual, and queer (LGBQ) individuals are a marginalized population in the United States, and this status places them at a greater risk for adverse health outcomes, such as tobacco and substance use, obesity, cancer, sexually-transmitted infections, violence, mental health issues, and suicide. The present study used individual- and microsystem-level data from the American College Health Association (ACHA)-National College Health Assessment (NCHA) to compose a risk assessment for LGBQ students at a mid-Atlantic university. The study incorporated various levels of the ecological social model in an analysis of potentially influential factors on the development of LGBQ health disparities. 856 …

Sport Factors, Body Image, And Eating Behaviors In College Student Athletes, Kelsey Moran

Browse all Theses and Dissertations

Eating disorders are a common psychological disorder with athletes being at a higher risk. The rates of clinical and subclinical (i.e. subthreshold, partial diagnosis, or other specified feeding and eating disorder in DSM-5). There are several sport-specific risk factors that increase the prevalence rate of clinical and subclinical eating disorders and body image concerns. Several eating disorder development models exist for the general population, but one specific sport specific factor: coaches, has been left out, despite their significant impact on athletes. This study examined the relationship between coaching behaviors, eating disorder symptomology, and body image concerns. Potential moderators of teammate …

Effects Of Work Physical Activity Culture And Basic Needs On Physical Activity Outcomes, Erica Marie Thomas

Wayne State University Dissertations

Background: Physical activity (PA) levels of adults are low, and workplaces have been identified as an ideal place to promote PA. Participation in workplace programs continues to be low. Self Determination Theory (SDT) has been used to guide both PA and workplace research, but not both together. Culture has been linked to workplace behaviors, but not PA behavior. The purpose of this study was to test SDT and examine if employee perceptions of the workplace PA culture have statistically significant effects on PA behavior and PA attitudes, as mediated by the three basic psychological needs. Methods: Both salaried (N= 237) …

Widening The Disparity Gap: Differences In Outcomes For Racial And Ethnic Groups In Youth Substance Abuse Prevention Programming, Changsoo Song, Jennifer N. Rutt, Mindy Anderson-Knott

UNL Office of Research and Innovation, Social/Behavioral Sciences Research Consortium

This study examined racial and ethnic differences in the outcomes of a universal evidence-based program targeted to children and adolescents. Using data collected in 2015 and 2016 from the Alcohol: True Stories Hosted by Matt Damon program (N = 925), the study found the outcome of perceptions on risk of harm from alcohol use significantly different between the group of White respondents and the group of non-White respondents, and between the group of Hispanic respondents and the group of non-Hispanic respondents. Program effectiveness was found only among White and non-Hispanic respondents, widening the already existing gap between these populations.

The Effect Of Controlling Messages On Doctor-Patient Communication, Kayla A. Ladez

Honors Undergraduate Theses

The doctor-patient relationship is a very important aspect of a patient's health and wellbeing. It is a complex relationship that requires trust and understanding by both parties. Doctor shopping and changes in technology that allow patients to independently learn about their health have further complicated this relationship. This study looks at how participants perceive controlling language depending on the gender of the doctor. Participants were 339 University of Central Florida undergraduate students (112 men and 227 women, age M= 19.29, SD = 3.60) recruited through SONA. Participants first listened to a recording of a male or female doctor speaking to …

The Blind Psychological Scientists And The Elephant: Reply To Sherlock And Zietsch, Robert Waldinger, M S. Schulz

Psychology Faculty Research and Scholarship

The Commentary by Sherlock and Zietsch (2018) raises important questions about how the science of human psychological development moves forward as researchers make dramatic strides in understanding the role of genetics. In this response, we return to these larger questions, but we begin by addressing Sherlock and Zietsch’s specific argument that “genetic contributions should almost always be considered when dealing with associations between parents’ behavior and their children’s behavior” (p. 156). In our 60-year study of the association between warmth of the childhood family environment and late-life security of attachment (Waldinger & Schulz, 2016), we did not mention …

Comparison Of Baseline Impact Performance In Amateur Motocross Riders To Football And Basketball Athletes, Natalie K. Sandel, Phillip R. Worts, Scott O. Burkhart, Luke Henry

Faculty Publications - Doctor of Psychology (PsyD) Program

Primary Objective: The American Motorcyclist Association requires professional riders to undergo baseline computerized neurocognitive testing (CNT) using the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) test for concussion management. It is recommended this practice be expanded to the amateur level, but limited research has explored whether baseline testing is necessary for youth when normative data is available. This study evaluates the utility of baseline testing for amateur riders by comparing their performance to those of traditional youth sports comprising normative datasets. Design/Methods: An cross-sectional study comparing amateur motocross (N = 100) riders matched by age and sex to football (N …

Assessing The Relationship Between Parenting Styles And Dietary Behaviors Among Young Adults, Breanna Tofteland

All Graduate Theses, Dissertations, and Other Capstone Projects

Food continues to be the focus of lifelong dietary and social habits. Past studies have shown the importance of creating healthy habits in childhood to increase the probability of healthy dietary behaviors as adults. A concern nationwide is that unhealthy dietary habits formed as a child translates to habits practiced as an adult, resulting in obesity (CDC, 2016). Past studies have shown that parenting styles are one of the contributing factors that influence how young adults view and interact with food. Branen & Fletcher's study concluded that there are significant correlations between habits formed in childhood that are still happening …

Life Chaos As A Predictor Of Diet Quality In U.S. Adults, Heidi Barbara Buchert Egan

Walden Dissertations and Doctoral Studies

Poor diet quality is a source of morbidity and mortality within the United States. Previous researchers have examined psychosocial influences on diet; however, the relationship between life chaos, a psychosocial measure, and diet quality was not known. The purpose of this cross-sectional survey study was to use the Life Chaos Scale and the Healthy Eating Index-2010 to collect data on life chaos and diet quality, consistent with the biopsychosocial model of health, from a sample of 103 U.S. adults. Regression analysis was used to construct a predictive model. According to the study results, life chaos was not a significant predictor …

Quantifying The Spectrum Of Depression, Octavious Bishop

Walden Dissertations and Doctoral Studies

Walden University

College of Social and Behavioral Sciences

This is to certify that the doctoral dissertation by

Octavious Bishop

has been found to be complete and satisfactory in all respects,

and that any and all revisions required by

the review committee have been made.

Review Committee

Dr. Thomas Edman, Committee Chairperson, Psychology Faculty

Dr. Ricardo Thomas, Committee Member, Psychology Faculty

Dr. Joanna Bissell-Havran, University Reviewer, Psychology Faculty

Chief Academic Officer

Eric Riedel, Ph.D.

Quantifying the Spectrum of Depression

by

Octavious Bishop

MA, University of Texas at Austin, 2008

BS, University of Texas at Austin, 2001

Dissertation Submitted in Partial Fulfillment …

Changes In Attitudes Towards Substance Use Among High School Students, Laura Sue Catherine Elias

Walden Dissertations and Doctoral Studies

Use of alcohol and illicit drugs during adolescent development can have negative effects on cognitive functioning and mental health. The purpose of this cross sectional study was to examine grade level, sex, athletic affiliation, and ethnicity as they relate to substance-using attitudes to isolate the period in which shifts in attitudes toward substance use in adolescents occur. The social learning theory provided the framework for the study. Participants included 276 high school students from a midsized Midwestern city. Students in the ninth, 10th, 11th, and 12th grades who participated in the study were asked to complete a brief electronic survey …

Student And Teacher Perceptions Of The Relationship Between Self-Regulation Executive Functions And Playing Team Sports, Rebecca T. Edelsberg

PCOM Psychology Dissertations

Executive functions (EF) are the directive capacities of the human brain that are responsible for a person’s ability to engage in purposeful, organized, goal-directed behavior and to cue and direct perceptions, feelings, thoughts and actions in specific ways. There has been a growing body of research indicating that sports such as soccer, basketball, and baseball require the effective use of self-regulation executive functions that cue and direct attention, inhibition, shifting, flexibility and working memory. The objective of the study was to investigate student athletes’ perceptions of the relationship between playing sports and their effective use of executive functions and teacher …

Impact Of Self-Efficacy And Time On Skin Cancer Protective Behaviors, Abbie Goldbas

Walden Dissertations and Doctoral Studies

Skin cancer incidence is increasing while the rates of other cancers is declining. The purpose of this quantitative study was to determine whether health self-efficacy predicted skin cancer protective behaviors. The theory of health self-efficacy provided the framework for the study. Secondary data were collected from the 2008 and 2014 Health Information National Trends Surveys. The study sample included women 18-34 years of age because this population is especially vulnerable to skin cancer. Results of logistic regression analyses indicated that higher levels of health self-efficacy predicted greater sunscreen use, but higher health self-efficacy levels did not predict avoidance of tanning …

The Impact Of Sociodemographic Factors On Health-Related, Neuropsychological, And Psychosocial Functioning In Youth With Spina Bifida, Jaclyn Lennon Papadakis

Dissertations

Objective: There is a lack of research on the impact of sociodemographic factors on youth with spina bifida (SB). This is concerning given the pervasive health disparities that exist in pediatric chronic illness groups. The aims of this study were to examine: (1) differences in health-related, neuropsychological, and psychosocial functioning among youth with SB based on sociodemographic risk; (2) cumulative risk as a predictor of youth outcomes, as moderated by age; (3) SB-related family stress as a mediator of the associations between sociodemographic/cumulative risk and youth outcomes, longitudinally. Methods: Participants (M age = 11.43, 53.6% female) were recruited as part …

The Sweet Truth: Initial And Post-Ingestive Effects Of Sugar And Protein On Taste Preferences In Rats, Katrina Prantzalos

Senior Honors Theses and Projects

The purpose of this study is to investigate the food preferences of rats when given food with either a high protein or a high sugar content. We hoped to compare initial preferences and long-term exposure to determine the role of taste, and then post-ingestive effects, to examine if taste preferences are formed on the basis of taste alone or caused by the body's absorption of nutrients. To achieve this goal, we studied rats' food choices when presented with high protein yogurt or yogurt with a high sugar content. For half the rats two dishes were placed into the home container …

Peer Weight Teasing And Body Image In Adolescent Girls: Self-Objectification As A Moderator, Sierra Hill

Senior Honors Theses and Projects

The study expands body image research to examine how weight teasing and self-objectification might be related to body image disturbances among adolescent girls (n=l 00). We conceptualize this relationship using a stress-diathesis model. Through this. a stressful event (e.g., peer weight teasing) would internet preexisting vulnerabilities (e.g., self-objectification) to increase body related distress. We examine the girls' reports of peer weight-teasing, self-objectification, eating attitudes and body dissatisfaction and establish relationships between these variables with a regression analysis. Results indicated that greater self-objectification is related to greater body dissatisfaction. No moderating effect of self-objectification was found for the effect of peer …

Students Perspective Of Healthy Living In College, Andrea Coxey

Masters Theses

Using qualitative methodology, the researcher studied what participants definition of a healthy lifestyle as compared to how they actually live. Through conducting six one on one interviews with participants, it was found that physical health was the most widely recognized aspect of health, and that each participant had a unique definition of health. Mental health was not initially recognized by participants but was shown to be an important connection to all aspects of health including physical health, emotional health, sleep and nutrition. Participants recognized the importance of involvement and their transition to college as impacting their definition of health and …

Parental Ptsd, Emotion Regulation, And Behavior Problems In Toddlerhood: Unique Associations Among Families In Urban Poverty, Hasti Ashtiani Raveau

Wayne State University Dissertations

Parental posttraumatic stress disorder (PTSD) has been shown to negatively impact children’s socioemotional development (Schwerdtfeger et al., 2014) and increase children’s risk for later psychopathology (Scheeringa & Zeanah, 2008; Yehuda, Halligan, & Bierer, 2001). Less is known about this topic among minority and poor mothers and fathers of toddlers, and the critical role parents’ emotion regulation may play in mediating the associations between PTSD and toddlers’ socioemotional problems (Beck et al., 2009). Parental emotion dysregulation has been linked with children’s socioemotional problems (Coyne & Thompson, 2011), especially during toddlerhood when children are beginning to learn how to regulate their own …

The Effects Of Pre-Pregnancy Tobacco Use On Food Cravings And Weight Gain In Pregnancy, Lauren E. Blau

Legacy Theses & Dissertations (2009 - 2024)

Smoking cessation is associated with greater frequency of food cravings, even when controlling for body mass index. Recent studies have indicated similarities between obese women and women who smoke tobacco in mood states and food craving frequency. This is consistent with the common substrate hypothesis, which postulates that shared neural pathways mediate craving across multiple domains, and could explain why it is common for women attempting to quit smoking to gain weight. Smoking cessation prior to pregnancy is strongly encouraged due to the adverse effects of tobacco use on the developing fetus. Studies have shown that women who quit smoking …

Testing The Effectiveness Of A Sct-Based Peer Wellness Coaching Training Program In Enhancing Health Self-Efficacy And Outcome Expectations Among Undergraduate Peer Educators, Abigail Dubovi

Legacy Theses & Dissertations (2009 - 2024)

Peer health education (PHE) is a widely implemented approach to health promotion on college campuses. Based on its emphasis on vicarious learning and social persuasion, social cognitive theory (SCT; Bandura, 2000) is frequently cited to account for the proposed mechanisms of PHE. However, to date, no prior studies have developed and tested the utility of a SCT-based PHE training program in improving theoretically consistent outcomes among peer educators. Thus, the purpose of this study was to develop, implement, and test the effectiveness of a 15-week, SCT-based peer wellness coaching (PWCTP) training program in enhancing health self-efficacy (HSE) and outcome expectations …

Cravings And Gestational Weight Gain : Predictors Of Weight-Related Health In Pregnancy And The Postpartum, Natalia Christine Orloff

Legacy Theses & Dissertations (2009 - 2024)

More than half of all pregnancies result in excess gestational weight gain (GWG), which is one of the most common high-risk obstetric conditions and is associated with health complications in the mother and the fetus. We have conceptualized excess GWG within the Elaboration Intrusion framework and developed studies to test this theory and identify predictors of excess GWG. These studies sought to 1) establish the appropriateness of existing measures related to the constructs of the EI Theory, 2) establish a causal effect of food craving on excess GWG, 3) examine the role of knowledge as a predictor in excess GWG, …