Social and Behavioral Sciences Commons^™

Sleep-Related Arousal And Spontaneous Movement Properties In Methadone-Exposed Neonates: A Videographic Assessment On The First Or Second Postnatal Night, Hira Shrestha

Electronic Theses and Dissertations

Prenatal substance exposure such as alcohol, nicotine, and opiates is known to modulate autonomic regulatory function during sleep, and to decrease arousability and spontaneous movements (SM). SM during sleep may reflect a protective mechanism for immature patterns of arousals. Neurodevelopmental compromise in sleep and arousal systems may underlie sudden infant death syndrome (SIDS) risk in which infants expire during sleep. Previous studies from our laboratory found abnormal patterns of neonatal arousal, sleep fragmentation, and deficits in sleep-related SM in infants with prenatal alcohol exposure. In this study, prenatal exposure to methadone was hypothesized to disrupt the development of sleep and …

Getting To The Heart Of Social And Educational Disadvantage: Exploring The Impact Of Social Interactions Across The Class Divide, Ryan M. Pickering

Electronic Theses and Dissertations

Economic inequality between rich and poor in the United States is now at an all- time high. The increasing economic inequality in the United States may have deleterious effects for social interactions across the so-called “class divide.” Individuals from different socioeconomic status (SES) backgrounds may find cross-class interactions stressful or intimidating, particularly when they are from a lower-status group.

Across two studies, I examine the impact of cross-class social interactions on cognitive performance and physiological reactivity. In the first study, individuals from lower-SES backgrounds participate in a social interaction with an individual from either a higher or lower-SES background, or …