Professor of Speech, Language, Hearing Sciences, Purdue University

Professor of Experimental Psychology, University College London

University of Connecticut

Univ. of Kassel, Germany

Professor Emeritus of Speech-Language Pathology, West Virginia University

Professor of Phoniatrics and Pediatric Audiology, Dept. of Phoniatrics and Pedaudiology …

University of Göttingen

Professor, George Washington University

Pennsylvania State University

University of Michigan