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About the Author
Keith Johnson is a professor of linguistics at the University of California, Berkeley. He received his Ph.D. from Ohio State University and taught in the department of linguistics from 1993 to 2005. Dr. Johnson received postdoctoral fellowships from Indiana University and UCLA, where he worked with Peter Ladefoged and Patricia Keating. His primary research field focuses on the processes of speech perception as they relate to phonetic and phonological theory. Dr. Johnson's research and teaching on acoustic phonetics and psycholinguistics is widely recognized.
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