1. Continuity and Change in Reactivity and Regulation during Early Childhood: The Role of Genetic Influences and Parental Internalizing Symptoms Restricted (Penn State Only) Author: Zhou, Anna Title: Continuity and Change in Reactivity and Regulation during Early Childhood: The Role of Genetic Influences and Parental Internalizing Symptoms Graduate Program: Psychology (PHD) Keywords: temperamentnegative emotionalityparasympathetic nervous systembehavioral geneticsinternalizing symptoms File: Login to Download Committee Members: Lorah Dorn, Outside Unit & Field MemberJenae Neiderhiser, Major Field MemberKristin Buss (she/her), Chair & Dissertation AdvisorKristin Buss (she/her), Program Head/ChairYo Jackson, Major Field Member