David Singleton is an emeritus professor of Trinity College Dublin, Ireland. He teaches at the University of Pannonia, Veszprém, Hungary and the State University of Applied Sciences, Konin, Poland
His research interests have ranged from fairly theoretical areas of linguistics (e.g. lexical semantics and semantic change) to very practical and applied domains (e.g. second language syllabus design). In recent times most of my research activity and publications have been concerned with second language acquisition, and in particular (i) cross-linguistic influence in second language acquisition and processing, (ii) the second language mental lexicon, (iii) multilingualism and (iv) age-related factors in second language acquisition.