Contemporary cognitive science is the latest version of the century-long quest for a better understanding of the human mind and brain. Various disciplines have brought together empirical methods and theoretical models from their fields of study to further this effort. Many of the authors of this special issue are not psychologists by training, and they do their professional work in fields as varied as mathematical physics, neuroimaging, molecular biology, and the pragmatics of communication. Nevertheless, their contributions to the journal’s topic, and, ito the future of psychology as a science, are preeminent.