This graduate seminar will be concerned with the topic of “Voice Recognition and Perception,” an important and neglected area of study that has traditionally been confined to the periphery of the mainstream of research in the field of speech perception and spoken language processing. Fortunately, this has now changed with the forthcoming publication in 2011 of a new comprehensive research monograph written by Jody Kreiman and Diana Sidtis entitled “Foundations of Voice Studies: An Interdisciplinary Approach to Voice Production and Perception.” We will be reading copies of the proofs of selected chapters from this new monograph before it is actually published under a special one-time arrangement with the authors and publisher of the book. Our objective in this seminar is to survey and review some of the relevant literature in the field of voice perception and recognition and consider theoretical and conceptual efforts to unify and understand the perception and recognition of the indexical properties of speech, attributes of the speech signal that provide important information about the talker’s gender, dialect, speaking style, as well as their mental, emotional, and physical states. These so-called “extralinguistic” properties of spoken language are encoded in the speech waveform by talkers and are transmitted in parallel in the time-varying speech waveform along with the abstract symbolic linguistic properties of speech that are used to convey the talkers’ intended message. There is now a growing body of literature demonstrating that these source attributes are also used by listeners in speech perception and spoken language processing and that information about the vocal source may be responsible for the robustness of speech perception under challenging and adverse listening conditions.