Language acquisition unites common sense observations and counterintuitive puzzles. It is obvious that caregiver input impacts children’s development. Yet, we also see remarkable ways in which learning goes beyond what’s in the input. Teasing apart this tension has profound implications for how society addresses variable language outcomes. As educators, how do we close the achievement gap? As clinicians, can we predict effective interventions? At the Language and Cognition Laboratory (LCL), we take on these challenges through the eyes of learners, and pursue the notion that year-to-year development involves an evolving capacity to extract information on a moment-to-moment basis. Our research is funded by the National Science Foundation. For more information on our studies or how to participate, please follow the menu links.