Acoustic Startle Responses and Temperament in Individuals Who Stutter Fourteen individuals who stutter and 14 individuals who do not stutter were presented with 10 bursts of white noise to assess the magnitude of their eyeblink responses as a measure of temperament. Both the magnitude of the eyeblink response to the initial noise burst and the mean of the 10 ... Research Article
Research Article  |   February 01, 2003
Acoustic Startle Responses and Temperament in Individuals Who Stutter
 
Author Affiliations & Notes
  • Barry Guitar, PhD
    University of Vermont, Burlington
  • Contact author: Barry Guitar, PhD, Department of Communication Sciences, 400 Pomeroy Hall, University of Vermont, Burlington, VT 05405-0010.
    Contact author: Barry Guitar, PhD, Department of Communication Sciences, 400 Pomeroy Hall, University of Vermont, Burlington, VT 05405-0010.×
  • Corresponding author: E-mail: bguitar@zoo.uvm.edu
Article Information
Speech, Voice & Prosodic Disorders / Fluency Disorders / Hearing & Speech Perception / Acoustics / Speech / Research Articles
Research Article   |   February 01, 2003
Acoustic Startle Responses and Temperament in Individuals Who Stutter
Journal of Speech, Language, and Hearing Research, February 2003, Vol. 46, 233-240. doi:10.1044/1092-4388(2003/018)
History: Received October 9, 2001 , Accepted September 24, 2002
 
Journal of Speech, Language, and Hearing Research, February 2003, Vol. 46, 233-240. doi:10.1044/1092-4388(2003/018)
History: Received October 9, 2001; Accepted September 24, 2002
Web of Science® Times Cited: 13

Fourteen individuals who stutter and 14 individuals who do not stutter were presented with 10 bursts of white noise to assess the magnitude of their eyeblink responses as a measure of temperament. Both the magnitude of the eyeblink response to the initial noise burst and the mean of the 10 responses were significantly greater for the stuttering group. The Taylor-Johnson Temperament Analysis (R. M. Taylor & L. P. Morrison, 1996) did not distinguish between the two groups, but informal follow-up statistics indicated that the Nervous subscale showed a significant group difference. Scores on this subscale were also significantly positively correlated with the magnitude of the startle response. A discriminant analysis demonstrated that although both the startle response and the nervous trait differentiated the two groups, the startle response measures were more powerful in making this differentiation.

Acknowledgments
I wish to thank Bruce Kapp for his initial suggestion for the study and William Falls and Rebecca McCauley for their helpful comments on the experimental work and on the article. I would also like to thank Charles Barasch for his help with reliability measurements.
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