Since July 2006 has been a JSPS Postdoctoral Fellow in Complex Systems and Artificial Life Lab at the University of Tokyo. Between April and June 2006 was a Postdoctoral Associate in the Computational Cognitive Science Lab of the Department of Brain and Cognitive Sciences at MIT. Was working on language evolution, and acquisition. During 2005 and 2006 was an Economic and Social Research Council Postdoctoral Fellow in Linguistics and English Language at the University of Edinburgh, where he worked in the Language, Evolution and Computation Research Unit on a project called "Understanding Language through Bayesian and Evolutionary Models".