Welcome to The Bastian Voice Institute


		Robert W. Bastian, M.D. Brent E. Richardson, M.D. Lori L. Sonnenberg, M.M. (voice), M.A., CCC-SLP W. Nathan Waller, M.M. (voice), M.A., CCC-SLP Michele R. Denemark, M.A., CCC-SLP Michele C. Simler, M.S., CCC-SLP

3010 Highland Parkway Suite 550
Downers Grove, IL
60515

Phone: 630-724-1100
Fax: 630-724-0084
info@bastianvoice.com

Glossary

Note: Within a definition, words in italics are defined elsewhere in the glossary. Words beginning with * were coined or brought into the language of voice disorders by Dr. Bastian, or to our knowledge are used primarily by BVI physicians and Bastian-trained fellows. Please note that we may be adding terms to this list from time to time. Copyright © 2008 Bastian Voice Institute.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O
P | Q | R | S | T | U | V | W | X | Y | Z

Jitter: The cycle-to-cycle variability of the period duration of the acoustic signal coming from voice production. This measure is used as one way to assess the micro-instability of vocal fold vibrations. One of the acoustic measures often used by adherents of the technology-driven diagnostic model. Given that jitter can vary dramatically with changes of voice production within the same voice, and also that a given jitter measurement is non-specific to any particular voice disorder, jitter is considered superfluous to the integrative diagnostic method and is not used routinely at Bastian Voice Institute.