 Craik also involved himself in editorial boards for journals and visited other psychology departments and institutions in North America.With the invention of functional neuroimaging and the University of Toronto’s acquisition of a PET scanner, Craik and many of his colleagues looked at the brain correlates involved in encoding and retrieving processes in memory.A large portion of this research was possible because of the conception of the Rotman Research Institute at the Baycrest Centre for Geriatric Care in northern Toronto - an institution that Craik helped conceive.