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18
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Introduction
Skills and Expertise
Additional affiliations
September 2007 - August 2013
Publications
Publications (18)
Objective
An emerging literature suggests that sleep may play an important role in moderating the association between discrimination and mental health problems among adolescents. However, few if any studies have considered this topic among adults. Addressing this knowledge gap, the current study examined multiple sleep parameters as moderating vari...
Objective:
To examine social class discrimination as a mediator of socioeconomic disparities in sleep outcomes in an adolescent sample.
Methods:
Sleep was assessed from established actigraphy (efficiency, long wake episodes, duration) and self-report (sleep/wake problems, daytime sleepiness) measures among 272 high school students in the Southea...
Objectives:
Socioeconomic status (SES) and neighborhood context are influential predictors of adolescent sleep, yet little is known about how they may interact to influence sleep. We examined multiple dimensions of family SES as moderators of associations between neighborhood risk and multiple sleep parameters.
Methods:
Participants were 323 ado...
Sleep is a robust predictor of child and adolescent development. Race/ethnicity, socioeconomic status (SES), and related experiences (e.g., discrimination) are associated with sleep, but researchers have just begun to understand the role of sleep in the development of racial/ethnic and SES disparities in broader psychosocial adjustment and cognitiv...
Study Objectives
We examined multiple actigraphy-based sleep parameters as moderators of associations between experiences of general and racial discrimination and adolescent internalizing symptoms (anxiety, depression) and externalizing behavior (rule-breaking). Adolescent sex and race were examined as additional moderators.
Methods
Participants w...
Father‐infant and mother‐infant (one‐year‐olds) adrenocortical attunement was explored during the Strange Situation Procedure (SSP) among 125 father‐infant and 141 mother‐infant dyads. Cortisol was assessed at baseline (T1), 20 (T2), and 40 minutes (T3) after the first parent‐infant separation. Initial correlations indicated significant association...
Short and poor-quality sleep disrupt cognitive functioning, yet associations vary across studies, underscoring the importance of examining individual differences and moderators of risk. Utilizing a multi-method, two-wave longitudinal design, we examined self-esteem as a moderator of relations between actigraphy-derived sleep duration (minutes) and...
Low socioeconomic status (SES) has been associated with poor sleep in youth, yet mechanisms underlying this association are not well-understood. The present study examined greater chaos as a mediator of associations between low SES and 2 indices of poor sleep. Two hundred fifty-two adolescents (53% girls; 66% White/European American, 34% Black/Afri...
Objective/Background: Lower socioeconomic status (SES) is generally associated with poor sleep but little is known about how different SES indices are associated with sleep duration and quality, or about these relations longitudinally or in cohabiting couples. The main objective was to examine longitudinal associations between multiple SES and slee...
We assessed parents' testosterone reactivity to the Strange Situation Procedure (SSP), a moderately stressful parent-infant interaction task that pulls for parental nurturance and caregiving behavior. Parents (146 mothers, 154 fathers) interacted with their 1-year-old infants, and saliva samples were obtained pre- and post-task to assess changes in...
Objectives:
We examined interactions between adolescents' sleep duration and quality as predictors of their internalizing symptoms and externalizing behaviors. As a secondary aim, we assessed adolescent sex, race/ethnicity, and socioeconomic status (SES) as additional moderators of risk (ie, 3-way interactions among sleep duration; quality; and se...
Attachment security is theorized to shape stress reactivity, but extant work has failed to find consistent links between attachment security to mothers and infant cortisol reactivity. We examined family configurations of infant-mother and infant-father attachment security in relation to infant cortisol reactivity. One-year old infants (N = 180) par...
Background & objective:
A growing body of work indicates that experiences of neighborhood disadvantage place children at risk for poor sleep. This study aimed to examine how both neighborhood economic deprivation (a measure of poverty) and social fragmentation (an index of instability) are associated with objective measures of the length and quali...
Positive father involvement is associated with positive child outcomes. There is great variation in fathers' involvement and fathering behaviors, and men's testosterone (T) has been proposed as a potential biological contributor to paternal involvement. Previous studies investigating testosterone changes in response to father-infant interactions or...
Adolescents' sleep duration was examined as a moderator of the association between perceived discrimination and internalizing (anxiety, depression) and externalizing symptoms. Participants were 252 adolescents (mean: 15.79 years; 66% European American, 34% African American) who reported on their perceived discrimination (racial and general) and adj...
Social subordination can be biologically stressful; when mammals lose dominance contests they have acute increases in the stress hormone cortisol. However, human studies of the effect of dominance contest outcomes on cortisol changes have had inconsistent results. Moreover, human studies have been limited to face-to-face competitions and have heret...
Political elections are dominance competitions. When men win a dominance competition, their testosterone levels rise or remain stable to resist a circadian decline; and when they lose, their testosterone levels fall. However, it is unknown whether this pattern of testosterone change extends beyond interpersonal competitions to the vicarious experie...
With salivary assessment of steroid hormones increasing, more work is needed to address fundamental properties of steroid hormone levels in humans. Using a test-retest design and radioimmunoassay assessment of salivary steroids, we tested the reliability of testosterone, cortisol, and progesterone levels across two weeks, as well as the effects of...