The study of intelligence in the modern cognitive sciences has largely become the study of representations (visual, linguistic, etc.) conceived computationally. This interdisciplinary science has, of course, several major aspects, and these at once illuminate each other and exist in a certain tension as they compete for the explanation of common, and related, phenomena. This view is the basis for the interdisciplinary work of IRCS over the past decade. The philosophy governing research at IRCS has been to look for progress at these disciplinary boundaries, where the need for integration and the uncertainty about how to achieve it stimulate scientific creativity.