Longitudinal study of the cascading effects of racial discrimination on parenting and adjustment among African American youth.

Attachment theory posits that parenting plays akey role in children's attachment and subsequent development. Given the normativity of racial discrimination on everyday life experiences of African American families, there is a need to integrate historical and socio-environmental processes in studies to understand how minoritized parents raise secure and stable children. Results from the current study revealed direct associations between mothers' reports of discrimination and heightened depression and anxiety. Maternal discriminatory experiences were indirectly associated with more negative parenting and compromised parent-child relationship quality, through mothers' psychological functioning. Elevated emotional and behavioral management problems among youth were directly associated with exposure to racial discrimination. Exposure to discrimination during middle childhood facilitated adapted or learned strategies to manage similar situations as youth transitioned into adolescence, with reduced patterns of depressive symptomology. No significant gender effects emerged. Implications for theoretical advancement and future research are provided.

Increased food intake after starvation enhances sleep in Drosophila melanogaster.

Feeding and sleep are highly conserved, interconnected behaviors essential for survival. Starvation has been shown to potently suppress sleep across species; however, whether satiety promotes sleep is still unclear. Here we use the fruit fly, Drosophila melanogaster, as a model organism to address the interaction between feeding and sleep. We first monitored the sleep of flies that had been starved for 24 h and found that sleep amount increased in the first 4 h after flies were given food. Increased sleep after starvation was due to an increase in sleep bout number and average sleep bout length. Mutants of translin or adipokinetic hormone, which fail to suppress sleep during starvation, still exhibited a sleep increase after starvation, suggesting that sleep increase after starvation is not a consequence of sleep loss during starvation. We also found that feeding activity and food consumption were higher in the first 10-30 min after starvation. Restricting food consumption in starved flies to 30 min was sufficient to increase sleep for 1 h. Although flies ingested a comparable amount of food at differing sucrose concentrations, sleep increase after starvation on a lower sucrose concentration was undetectable. Taken together, our results suggest that increased food intake after starvation enhances sleep and reveals a novel relationship between feeding and sleep.