Tamar Keren-Portnoy is a Professor in the Department of Language and Linguistic Science at the University of York, where she has held academic positions since 2006, progressing from Research Fellow to Professor in 2021. She is actively involved in research, teaching, and external collaborations, focusing on early language acquisition and developmental psycholinguistics. Her work bridges linguistics, psychology, and clinical applications, particularly in supporting infants at risk of language delay. Her research interests center on how low-level skills such as babbling and phonological perception contribute to higher-level language development. She investigates the role of infant vocalizations, parental speech input, sleep, and motor development in vocabulary growth. A significant focus is on interventions for children with Down syndrome, including the development and evaluation of the BabblePlay app. She also explores the psycholinguistics of Semitic languages like Hebrew and Arabic, examining root-and-pattern morphology in early language learners. The most recent publications reflect a strong trend in interdisciplinary research combining developmental science, technology, and clinical intervention. Topics include app-based babbling reinforcement, sleep’s role in word learning, cross-linguistic child-directed speech, and sound symbolism in maternal speech. Her work increasingly integrates experimental methods, systematic reviews, and randomized controlled trials to advance both theoretical understanding and practical applications. She is a member of the ESRC Peer Review College and leads multiple funded projects with collaborators across psychology, engineering, and health sciences. Her grants include support from the British Academy and the Economic and Social Research Council (ESRC), focusing on early intervention, vocalization reinforcement, and language outcomes in at-risk populations. Her laboratory, associated with the BabblePlay project and the York Baby Lab, engages in naturalistic observation and experimental studies with infants and toddlers. She collaborates internationally, including work with Ugandan populations and cross-linguistic studies of Danish, Arabic, and Hebrew. Her team includes researchers in linguistics, psychology, and health sciences, reflecting the interdisciplinary nature of her work.





