Research on speech production and perception provides the interface between the nature of the mechanisms involved in speech processing with the constructs that characterize the study of sound structure of language in phonological theory.
Blumstein's research investigates the acoustic properties corresponding to the sound segments of language and in particular to phonetic features. Blumstein also studies the nature of speech production and speech perception impairments associated with aphasia.
Lieberman's research has focused on the acoustic correlates of linguistic prosody and, in particular, stress and intonation. He is also concerned with the relationship between speech and more general cognitive deficits emerging under abnormal conditions.
Morgan studies the development of capacities for speech perception and their relation to language acquisition. This research examines how higher-order abilities are manifested in older infants, focusing in particular on how infants segment fluent speech into word-like representations and begin to establish a receptive lexicon.
A two course sequence provides both the theoretical and experimental bases for speech production and speech perception (CG123, CG124), and these two courses along with the foundation course in phonological theory (CG121) allow for more advanced tutorial work in speech perception and speech production. Course work in language acquisition is relevant to study of speech production and perception in younger populations.
State of the art laboratory facilities for the acoustic analysis of speech and for speech perception provide hands on opportunities for students to do experimental research.
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