Speech, Language, and Hearing Sciences
Faculty
Anne Smith, Ph.D.
Office: 202B
Phone: 43798
asmith@purdue.edu
Neurophysiological Bases of Speech Production/Language and Motor Interactions
B.A., 1972, Psychology, Kalamazoo College
M.A., 1974, Speech Science, University of Iowa
Ph.D., 1978, Speech Science, University of Iowa
Postdoctoral Trainee, Department of Physiology and Biophysics, University of Washington
My research program focuses on the neurophysiological bases of speech production. My research has addressed a range of questions, but these questions generally relate to the overall problem of how the brain controls the production of speech. I have worked intensively on the problem of stuttering since 1989, when I began work on a project, “Physiological Correlates of Stuttering.” I am currently focusing much of my research effort on the physiological conditions necessary for the forward flow of speech and those that lead to disruptions of speech in stuttering. The work on stuttering naturally led to an interest in the development of speech production, and our group has just completed a five-year project on speech motor development in children aged 4-years to young adults. Both the stuttering work and the developmental experiments have led us to explore interactions between language processing and speech motor performance. In current experiments we are recording event-related potentials of the brain during language processing tasks as well as speech movement data during speech production. We are testing the general hypothesis that language processing and speech motor control are much more tightly linked than earlier models would predict.
SELECTED PUBLICATIONS:
Smith, A. (1992). The control of orofacial movements in speech. Critical Reviews in Oral Biology and Medicine, 3, 233-267.
Smith, A., Goffman, L., Zelaznik, H., Ying, G., and McGillem, C. (1995). Spatiotemporal stability and patterning of speech movement sequences. Experimental Brain Research, 104, 493-501.
Smith, A. (1999). Stuttering: A unified approach to a multifactorial, dynamic disorder. In Research and Treatment of Fluency Disorders: Bridging the Gap. N. Ratner and C. Healey (Eds). Mahwah, NJ: Erlbaum, p. 27-44.
Maner, K., Smith, A., & Grayson, L. (2000). Influences of length and syntactic complexity on speech motor performance of children and adults. Journal of Speech, Language, and Hearing Research, 43, 560-573.
Kleinow, J., & Smith, A. (2000). Influences of length and syntactic complexity on the speech motor stability of the fluent speech of adults who stutter. Journal of Speech, Language, and Hearing Research 43, 548-559.