The Musicology Colloquium presents a talk by Laurel Trainor Rhythms are ubiquitous in biological systems, from motor movements for locomotion to communication signals such as speech and music. I will present evidence that auditory-motor interactions for timing are present early in development and that the human auditory system uses the motor system to accomplish rhythmic timing. I will present data indicating that infants can maintain internal interpretations of ambiguous rhythm patterns and that even the premature infant brain encodes beat and meter frequencies. Finally, I will discuss the social implications of coordinated movements in human interactions from musical ensembles to pro-social behaviour in infants. Laurel Trainor (Ph.D., University of Toronto) is a Professor of Psychology, Neuroscience and Behaviour at McMaster University, Fellow of the Royal Society of Canada (FRSC), Fellow of the Canadian Institute for Advanced Research (CIFAR), Fellow of the Association for Psycholog