Department of Otolaryngology, Section of Physiological Acoustics and Communication, University of Tübingen, Silcherstrasse 5, 72076 Tübingen, Germany; Department of Communication and Neuroscience, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom; Virginia Merrill Bloedel Hearing Research Center and Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle, WA 98195; and Department of Basic Sciences, Fred Hutchinson Cancer Research Center, 1124 Columbia... (At 1999-03-30)