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Masculinized Second-To-Fourth Digit Ratio (2d:4d Ratio) Is Associated With Lower Cortisol Response In Infant Female Rhesus Monkeys (Macaca Mulatta), Elizabeth K. Wood, Parker Jarman, Elysha Cash, Alexander Baxter, John P. Capitanio, James Dee Higley
Masculinized Second-To-Fourth Digit Ratio (2d:4d Ratio) Is Associated With Lower Cortisol Response In Infant Female Rhesus Monkeys (Macaca Mulatta), Elizabeth K. Wood, Parker Jarman, Elysha Cash, Alexander Baxter, John P. Capitanio, James Dee Higley
Faculty Publications
The second-to-fourth digit ratio (2D:4D ratio) is considered a postnatal proxy measure for the degree of prenatal androgen exposure (PAE), which is the primary factor responsible for masculinizing the brain of a developing fetus. Some studies suggest that the organizational effects of PAE may extend to the hypothalamic-pituitary-adrenal (HPA) axis response to stress. This study investigates the relationship between 2D:4D ratio and HPA axis functioning using a rhesus monkey (Macaca mulatta) model. Subjects were N = 268 (180 females, 88 males) rhesus monkey infants (3–4 months of age). Plasma cortisol concentrations were assayed from two blood samples obtained …
How Resilience-Building Interventions Impact Parenting Stress And Cortisol Reactivity In Mothers With Adverse Childhood Experiences, Victoria Jones
How Resilience-Building Interventions Impact Parenting Stress And Cortisol Reactivity In Mothers With Adverse Childhood Experiences, Victoria Jones
Undergraduate Honors Theses
Research has found that adverse childhood experiences (ACEs) are associated with changes in both parenting stress and cortisol. Resilience-building interventions may be able to help diminish the effects of ACEs, thus impacting parenting stress and cortisol reactivity. This study aims to examine how two resilience-building interventions (emotion-based and behavior-based) will impact parenting stress and cortisol reactivity in mothers with ACEs. This project is in the preliminary stages of data collection; as such, this honors thesis will review the relevant literature, describe current methodology and proposed analyses, and discuss possible implications and future directions. Participants (goal N=100) undergo a pre-assessment where …
More Than Just Words On A Screen: A Biopsychosocial Approach To Understanding Effects Of Race-Related Media, Melinda Kittleman
More Than Just Words On A Screen: A Biopsychosocial Approach To Understanding Effects Of Race-Related Media, Melinda Kittleman
Dissertations
Racial disparities in physical and mental health are ongoing and well-documented problems in the United States. Black Americans, compared to White Americans, have higher risk of obesity, heart disease, cancer, depression, and substance abuse. Research suggests prejudice and discrimination play a role in racial health disparities. Everyday discrimination is considered a chronic, psychosocial stressor that impacts the health of Black Americans. A biopsychosocial approach states there are various factors that contribute to the pathway from discrimination to disease and proposes complex relationships that explain effects of racial discrimination on health. The current study examined social factors (race-related media), biological factors …
Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert
Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert
Psychology Faculty Research and Scholarship
Racial discrimination contributes to stress-related health disparities among African Americans, but less is known about the acute effects of racial exclusion on the hypo-pituitary-adrenocortical response and psychological mediators. Participants were 276 Black/African American emerging-adults (54% female; Mage = 21.74, SD = 2.21) who were randomly assigned to be excluded or included by White peers via the game Cyberball. Racial exclusion (vs. inclusion) predicted: greater negative affect (F(1, 276) = 104.885, p < .0001), lower perceived control (F(1, 276) = 205.523, p < .0001), and greater cortisol release (F(1, 274) = 4.575, p= .033). Racial exclusion’s impact on cortisol release was mediated by lower perceived control …
Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert
Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert
Psychology Faculty Research and Scholarship
Racial discrimination contributes to stress-related health disparities among African Americans, but less is known about the acute effects of racial exclusion on the hypo-pituitary-adrenocortical response and psychological mediators. Participants were 276 Black/African American emerging-adults (54% female; M age = 21.74, SD = 2.21) who were randomly assigned to be excluded or included by White peers via the game Cyberball. Racial exclusion (vs. inclusion) predicted: greater negative affect (F(1, 276) = 104.885, p < .0001), lower perceived control (F(1, 276) = 205.523, p < .0001), and greater cortisol release (F(1, 274) = 4.575, p = .033). Racial exclusion’s impact on cortisol release was mediated by lower perceived control …
Life In A Harsh Environment: The Effects Of Age, Sex, Reproductive Condition, And Season On Hair Cortisol Concentration In A Wild Non-Human Primate, P. A. Garber, A. Mckenney, Evelyn Elizabeth Bartling-John, J. C. Bicca-Marques, M. F. De La Fuente, F. Abreu, N. Schiel, A. Souto, Kimberley A. Phillips
Life In A Harsh Environment: The Effects Of Age, Sex, Reproductive Condition, And Season On Hair Cortisol Concentration In A Wild Non-Human Primate, P. A. Garber, A. Mckenney, Evelyn Elizabeth Bartling-John, J. C. Bicca-Marques, M. F. De La Fuente, F. Abreu, N. Schiel, A. Souto, Kimberley A. Phillips
Psychology Faculty Research
Hair cortisol concentration (HCC) provides a long-term retrospective measure of hypothalamic–pituitary–adrenal axis activity, and is increasingly used to assess the life history, health and ecology of wild mammals. Given that sex, age, season and pregnancy influence HCC, and that it may indicate ongoing stress, we examined HCC in common marmosets (Callithrix jacchus) naturally inhabiting a hot and dry semi-desert like habitat, Caatinga, in northeastern Brazil. We trapped, measured, weighed, marked and collected shaved hair from the back of the neck of 61 wild marmosets during the wet and dry seasons. Using enzyme immunoassay, we found that HCC was …
Attentional Control In Infancy: The Role Of Sociodemographic Risk, Cortisol, And The Home Environment, Hannah B. White
Attentional Control In Infancy: The Role Of Sociodemographic Risk, Cortisol, And The Home Environment, Hannah B. White
Theses and Dissertations--Psychology
Infants’ ability to channel their cognitive resources by controlling their visual attention allows them to be active agents in their learning and development. Individual differences in attentional control have been linked to a wide variety of developmental outcomes including disparities between social classes in cognitive functioning. However, it is yet unknown when in development differences in attentional control related to sociodemographic factors emerge, or how factors of the home environment and the infant’s stress response relate to this effect. Accordingly, Experiment 1 examined whether certain sociodemographic factors, such as socioeconomic and minority status, predict 3.5-month-old infants’ (N = 102) …