
We study learning in the minds and brains of children and adults
Principal Investigator
Alexandra Decker
I’m a developmental cognitive neuroscientist and Assistant Professor of Psychological and Brain Sciences at Washington University in St. Louis. Before joining WashU, I trained as a postdoctoral fellow with John Gabrieli at MIT and completed my Ph.D. at the University of Toronto, working with Amy Finn and Katherine Duncan.
Our lab studies how children learn and remember, and how these processes change as they grow. We ask why learning looks different in children compared to adults, and how developing brains, minds, and experiences drive these differences. A major focus of our work is attention: how children direct their focus in the moment, how this shapes what they remember later, and how these dynamics change over development. We also study how children’s environments influence learning and brain development, and what this means for broader outcomes like academic achievement. By combining behavioral and neural measures, we aim to understand not just what children know, but how developmental processes give rise to the fundamental mechanisms of learning and memory.
Curious to learn more? Check out our research questions or publications. If you’re interested in joining the lab, I’ll be recruiting new Ph.D. students in Fall 2026 and undergraduate research assistants for January 2026.