2003 IFA Congress: Montreal, Canada

Kinematic Changes Following Static Perturbation in People Who Stutter

Aravind Kumar Namasivayam and Pascal H.H.M. Van Lieshout

Oral Dynamics Laboratory, Graduate Department of Speech-Language Pathology University of Toronto, 500 University Ave, Toronto, ON M5G 1 V7, Canada.


The purpose of this study was to determine whether or not persons who stutter (PWS) could compensate to the presence of a static (bite-block) perturbation. We hypothesized that, if PWS have a limited ability in utilizing sensory information then they would be unable to adequately control their lip movements to deal with the fixed jaw position. Results indicated that PWS like their matched controls were able to compensate for the presence of a static perturbation. However, there were differences between the two groups in terms of their use of motor control strategies during compensation.
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