Biological Psychology Commons^™

Racial Health Disparities Among Pregnant Women Of Color In New York City: Biological And Systemic Impacts, Kaylin Peña

Pitzer Senior Theses

Racial Health Disparities Among Pregnant Women of Color in New York City: Biological and Systemic Impacts

Abstract

This thesis aims to explore how racial health disparities, underrepresentation in gynecology, and socioeconomic barriers contribute to adverse pregnancy outcomes among women of color in New York City. Through an interdisciplinary approach that combines resources from medical anthropology and human biology, this research will examine the biological implications of chronic stress, specifically HPA axis dysregulation, and its role in maternal health outcomes. With the idea of intersectionality, as conceptualized by Kimberlé Crenshaw, the study analyzes the various effects of systemic inequities and social …

Neural Correlates Of Attentional Biases In Dietary Choice: Role Of Childhood Socioeconomic Status, Justine Jamie N. Gotico

CMC Senior Theses

Childhood poverty has been shown to increase adult risk for obesity above and beyond its direct effects on adult socioeconomic status (SES). One proposed mechanism of these effects is by shifting behavioral patterns of dietary consumption and choice, for example by increasing rapid attention to high-calorie unhealthy foods. Yet, whether such neural mechanisms can explain observed differences in dietary behavior based on childhood SES remains an open question. Here we used event-related potentials (ERPs) to examine early attentional correlates of low childhood SES during a dietary choice task, based on research suggesting that early attentional biases toward high-calorie foods emerge …

Money Matters: Investigating The Emotional, Cognitive, And Biological Pathways Connecting Maternal Early Life Financial Insecurity And Parenting Quality, Elise Power, Stacey N. Doan

CMC Senior Theses

Early life adversity has been shown to have a variety of negative effects on adult functioning, including parenting quality, with implications for child wellbeing. Adverse early life experiences including poverty have been linked to long-term disruptions in emotional, cognitive, and physiological functioning that compromise the ability to provide sensitive, nurturing care. The present study investigated whether emotional regulation difficulties, physiological regulation, and cognitive function mediate the relationship between early life financial insecurity and parenting quality. A sample of 132 mother-child dyads completed self-report measures, biological samples, and cognitive assessments. A multiple mediation model ran in SPSS, revealed a significant indirect …

Synthetic Neuroactive Steroids Targeting Gaba-A Receptors As A Potential Therapy For Contraceptive-Associated Mood Disorders, Alexandria A. Davis

Scripps Senior Theses

4-10% of women who use hormonal oral contraceptives (HOCs) discontinue use after experiencing symptoms of anxiety, irritability, and depression in the first 3 months of administration. Previous studies have acknowledged a relationship between HOCs and emotional dysregulation but have not identified mechanisms by which HOCs have this effect. As a result, effective treatment options for HOC-induced mood disorders are lacking. Current theories implicate combined-HOCs, particularly those containing ethinyl estradiol and levonorgestrel (EE-LNG), in reducing neuroactive steroid levels. Specifically, HOC users show decreases in allopregnanolone, a positive allosteric modulator associated with neuronal inhibition and emotional regulation. The objective of this study …

Polygenic Scores Ignore Development And Epigenetics, Dramatically Reducing Their Value, David S. Moore

Pitzer Faculty Publications and Research

Polygenic scores cannot elucidate the mechanisms that produce behavioral phenotypes (including “intelligence”). Therefore, they are unlikely to yield helpful interventions. Moreover, they are poor predictors of individuals’ developmental outcomes. Burt’s critique is well-supported by the details of molecular biology. Specifically, experiences affect epigenetic factors that influence phenotypes via how the genome functions, a fact that lends support to Burt’s conclusions.

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 …

Effects Of Child Sleep, Maternal Sleep, And Covid-19 Related Stressors On Maternal Stress, Jocelyn Chang

Scripps Senior Theses

Research has shown that poorer sleep quality can lead to increased stress and worse psychological functioning. In the parent-child dyad, sleep disturbances of both the child and parent can significantly affect parental functioning. However, in the context of parent-child relations, the contributions of maternal and child sleep to maternal outcomes are much less understood, especially in the context of a worldwide pandemic and global stressor such as COVID-19. Moreover, relations between stress and biological indicators have not been extensively studied, with most studies using self-reported measures of stress. This study aims to extend the findings of previous research by including …

Parent-Prompted Dysregulation: Do Parents Serve As Cues For Dysregulation In Some Children?, Daniel Lee

Pitzer Senior Theses

Children occasionally encounter dysregulation when interacting with their parents in relatively neutral or positive scenarios. Given that the cause of dysregulation is usually relational, meaning it is often cued by someone who is seen to have power or control over the person, children could be particularly susceptible to dysregulation in the presence of their parents. However, when examining the existing literature, there appeared to be a lack of research and knowledge concerning this topic, with much of the literature focusing on the effect of child stressors on parental dysregulation. As a result, the term parent-prompted dysregulation was developed to refer …

Viability Of Physiologically Timed Relaxation Interventions In Children With Asd, Nicholas Mendez

CMC Senior Theses

Autism Spectrum Disorder (ASD) is an increasingly common developmental disorder that changes how people experience the world and affects individuals’ social interactions and often leads to many adverse behaviors. Current literature dictates that a primary contributor to these adverse behaviors is that those with ASD have difficulty determining their own emotional states and determining the physiological signals that their body sends them. A study by Dr. Sarabadani et al. determined that it was possible to monitor the physiology of an individual with ASD and correlate certain signals to emotions, such as stress. These findings indicate the feasibility of establishing a …

Circadian Variations And Risky Decision Making, Sana Sra

Scripps Senior Theses

Over the past decades, decision making under risk has garnered a great amount of attention both in the field of economics and psychology. Although state-dependent variabilities of risk taking are well-documented, little is known about the effects of a person’s preferred time of day, or chronotype, in risky decision making. Under circumstances of circadian mismatch (e.g., when an “early bird” makes decisions in the evening), research suggests that decision making may reflect a greater reliance on heuristics, such as using stereotypes in social judgments. However, the effects of circadian mismatch on heuristics in risky decision making are relatively unexplored. This …

Relations Among Maternal And Paternal Behavior And Children's Stress Biology, S.K. Jiaming Lin, Stacey N. Doan, John Milton

Scripps Senior Theses

Parenting behavior has been shown to have a wide range of effects, influencing children’s psychological and biological stress outcomes. Most research focuses on maternal parenting behaviors, with few studies observing the effects of paternal behaviors or the influence of both parents on their children. In this study, the relationship between maternal and paternal parenting behaviors was examined in its association to predict children’s cortisol levels. Cultural differences in parenting styles was also observed. American (N=86) and Chinese (N=97) families participated in the study, with parents reporting their behaviors. Children’s cortisol was collected during a stressor task and correlational analysis was …

Early Contributions To Infants’ Mental Rotation Abilities, Mihaela Constantinescu, David S. Moore, Scott P. Johnson, Melissa Hines

Pitzer Faculty Publications and Research

Some cognitive abilities exhibit reliable gender differences, with females outperforming males in specific aspects of verbal ability, and males showing an advantage on certain spatial tasks. Among these cognitive gender differences, differences in mental rotation are the most robust, and appear to be present even in infants. A large body of animal research suggests that gonadal hormones, particularly testosterone, during early development could contribute to this gender difference in mental rotation. Also, substantial evidence supports an influence of socialization on mental rotation performance. The present study investigated the relationship of two types of factors, early postnatal testosterone exposure and parental …

Overt And Covert Attention In Infants Revealed Using Steady-State Visually Evoked Potentials, Joan Christodoulou, David S. Leland, David S. Moore

Pitzer Faculty Publications and Research

Although looking-time methods have long been used to measure infant attention and investigate aspects of cognitive development, steady-state visually evoked potential (SSVEP) measures may be more sensitive or practical in some contexts. Here, we demonstrate habituation of infants’ SSVEP amplitudes to a flickering checkerboard stimulus, and recovery of attention upon presentation of a novel checkerboard stimulus. This modulation of SSVEP amplitude was more robust than the modulation of looking time. In addition, we provide evidence of enhanced SSVEPs in response to covertly attended checkerboards flickering in peripheral visual fields, even while infants are fixating a central stimulus. These experiments provide …

The Potential Of Epigenetics Research To Transform Conceptions Of Phenotype Development, David S. Moore

Pitzer Faculty Publications and Research

Epigenetics remains an exciting subdiscipline of biology, generating discoveries and insights about development. Because epigenetic phenomena can draw attention to the dynamic, interactional, and probabilistic nature of phenotype development, epigenetics research could hasten the demise of both nature-nurture debates and reductionist, genetically determinist perspectives on phenotype development. However, new data alone will not inevitably transform conceptualizations of phenotype origins, because it remains possible to assimilate epigenetic phenomena into traditional conceptual frameworks; epigenetic discoveries could even strengthen biologically determinist conclusions if traditional conceptualizations are retained. Although epigenetics will not force conceptual transformation, epigenetics research encourages the dismissal of the nature-nurture dichotomy …

The Effect Of Inversion And Motor Expertise On Body Compatibility, Harrison M. Goodall Iii

Pomona Senior Theses

Previous studies have established that when a subject’s attention is directed to a specific body part, the subject is able to move that body part faster than a body part their attention was not drawn to. This is known as the body compatibility effect, and it has been shown that this effect only occurs when viewing upright images of the human body. In this study, we presented control subjects and expert acrobats with inverted and upright stimuli. We hypothesized that the amount of time the acrobats spent inverted would result in the acrobats exhibiting body compatibility effects for both upright …

The Effects Of Adherence To Asian Values And Extraversion On Cardiovascular Reactivity: A Comparison Between Asian And European Americans, Lindsay K. Yamaoka

Pitzer Senior Theses

This study investigated the effects of personality type and ethnicity on reactivity to stressful stimuli by examining acculturation and adherence to Asian American cultural values as moderators. Twenty-two Asian American and twenty-two European American students performed a mental arithmetic task and a speech task while cardiovascular (CV) reactivity was monitored. Level of extraversion, acculturation, and adherence to Asian American values were assessed. As predicted, Asian Americans exhibited less CV reactivity to stressful stimuli and lower levels of extraversion than European Americans. Support was found for adherence to Asian American values as a moderator of the relationship between level of extraversion …

Epigenetics: Blurring The Line Between Nature And Nurture, Elizabeth H. Rose

CMC Senior Theses

This long-standing nature versus nurture debate is cited in behavioral and physical expressions of disease dysfunctions, resiliencies, and recovery. Their purposes are noted both in scientific pursuits as well as literature. This discourse has been particularly intense in the fields of psychology, psychiatry, and biology where there is a long history of scientists’ attempts to disprove or discredit others’ intellectual and professional measures. Interestingly, recent advances in the neurosciences and genetic technologies have brought these fields closer together with a new focus – the interactional relationship between nature and nurture – epigenetics.