Yukie Nagai is a Project Professor at the International Research Center for Neurointelligence, the University of Tokyo. She received her Ph.D. in Engineering from Osaka University in 2004 and then worked at the National Institute of Information and Communications Technology, Bielefeld University, and Osaka University. Since 2019, she leads Cognitive Developmental Robotics Lab at the University of Tokyo. Her research interests include cognitive developmental robotics, computational neuroscience, and assistive technologies for developmental disorders. She has been investigating the underlying neural mechanisms for social cognitive development by means of computational approaches. Her theory of cognitive development based on predictive coding provides a unified principle for the temporal continuity and individual diversity in development and has been attracting increasing attention in the fields of cognitive science, developmental psychology, and developmental robotics. She was elected to “30 women in robotics you need to know about” in 2019 and “World’s 50 Most Renowned Women in Robotics” in 2020. She serves as the principal investigator of JST CREST “Cognitive Mirroring” and JST CREST “Cognitive Feeling” since 2016 and 2021, respectively.