Rachel is the Institute's most committed methodologist. Trained at UCL and Cambridge, she came to the Institute in 2016 specifically because of its open-science commitments, and she has since become one of the architects of its replication program. Her own research sits at the intersection of cognitive neuroscience and the Anomalous Cognition program — she studies how the brain generates certainty and how confident perception can diverge from physical reality. She leads the six-lab adversarial replication of retroactive-facilitation effects, a project she describes as the most demanding thing she has ever designed.