Julie Sedivy is Adjunct Professor of Linguistics and Psychology at the University of Calgary, Canada. She has published dozens of research articles on her experimental studies of language comprehension and production in children and adults. She has served as Associate Editor for the journal Linguistics and Philosophy, and currently writes the "Sold on Language" blog for Psychology Today. 

Greg Carlson is Professor of Linguistics, Philosophy, and Brain and Cognitive Sciences at the University of Rochester in the U.S. He has authored or co-authored more than a hundred articles on natural language semantics and psycholinguistics. He is the Editor of Language, the journal of the Linguistic Society of America.