David B. Pisoni is Chancellor’s Professor of Psychology and Cognitive Science and Adjunct Professor of Linguistics at Indiana University in Bloomington. He is also an Adjunct Professor of Otolaryngology, Head and Neck Surgery at the Indiana University School of Medicine. He has published numerous articles on topics such as speech synthesis, speech perception and spoken word recognition, and acoustic phonetics in a wide variety of scientific journals including Science, Journal of the Acoustical Society of America, Ear and Hearing, and Speech Communication. Robert E. Remez is Ann Whitney Olin Professor of Psychology at Barnard College, Columbia University. His research on the perception and production of speech has focused on perceptual organization and the identification of individual talkers. His research reports have appeared in a variety of scientific journals including Journal of Experimental Psychology: Human Perception and Performance, Perception & Psychophysics, Psychological Review, Psychological Science, and Science.