High Quality Content by WIKIPEDIA articles! Rachel Barr, Ph.D. is an associate professor at Georgetown University. Her research focuses on understanding the learning and memory mechanisms that develop during infancy. Because infants are preverbal, her techniques rely on imitation and learning methods to find out what infants have learned and how well and how long they remember it. Her previous research has focused on how infants pick up information from different media sources, television, siblings, adults, and different contexts. Most recently, Barr's studies focus on factors that might enhance infant learning from television.