The Hardy Effect Purpose The late James C. Hardy completed an extensive investigation of respiratory muscle activity during speech production. The data set that resulted was probably the most comprehensive and instructive that has ever existed. One aspect of the data puzzled Hardy and caused him to question the validity of his findings ... Research Note
Research Note  |   February 01, 2006
The Hardy Effect
 
Author Affiliations & Notes
  • Thomas J. Hixon
    University of Arizona, Tucson
  • Contact author: Thomas J. Hixon, Department of Speech, Language, and Hearing Sciences, Institute for Neurogenic Communication Disorders, University of Arizona, Tucson, AZ 85721. Email: hixon@u.arizona.edu
Article Information
Professional Issues & Training / Speech, Voice & Prosody / Speech / Research Notes
Research Note   |   February 01, 2006
The Hardy Effect
Journal of Speech, Language, and Hearing Research, February 2006, Vol. 49, 209-212. doi:10.1044/1092-4388(2006/017)
History: Received March 26, 2005 , Accepted July 3, 2005
 
Journal of Speech, Language, and Hearing Research, February 2006, Vol. 49, 209-212. doi:10.1044/1092-4388(2006/017)
History: Received March 26, 2005; Accepted July 3, 2005

Purpose The late James C. Hardy completed an extensive investigation of respiratory muscle activity during speech production. The data set that resulted was probably the most comprehensive and instructive that has ever existed. One aspect of the data puzzled Hardy and caused him to question the validity of his findings and withhold his observations from publication.

Method This research note chronicles Hardy’s thinking at the time (based on personal communications) and points out how the aspect of the data that puzzled him turned out to be a seminal discovery of a fundamental mechanism of speech breathing.

Conclusion It is proposed that, in his honor, this discovery be referred to as the Hardy Effect.

Acknowledgment
I am indebted to Michael Karnell at the University of Iowa for providing the photograph of Hardy and permitting me to print it here. The photograph was taken in 1997 on the occasion of Hardy’s retirement from the University of Iowa.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access