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Sound research at acoustical society meeting
Date:10/18/2011

Human voice conveys stress level: Men and women respond differently to stress: By evaluating the acoustical properties of the human voice, a research team at the University of Florida, Gainesville, is expanding the scientific understanding of the physics of vocal stress insight that might one day be used to improve the detection of deception. The research team confirmed that the human voice changes in systematic and perceptible ways under carefully measured, significant stress levels. One early surprise finding is that men and women respond differently to the same stressors. "In male subjects, higher degrees of physiological arousal were underreported what you might call a 'tough guy' response," explains lead researcher, James Harnsberger, Ph.D., a speech scientist in the Department of Linguistics. A graduate student on the project, Christian Betzen, suggested analyzing separately the gender categories for the four stress metrics used in the study two physical and two self-reporting. "The results were a surprise. We had expected that higher stressors would prompt both increased physiological response and increased self-reported stress levels in all test subjects fairly uniformly for both men and women," Dr. Harnsberger explains. One early conclusion these data suggest is that acoustic analyses should include gender in the study design. Talk 3aSCb44, "Talker and gender effects in induced, simulated, and perceived stress in speech," is in the morning session on Wednesday, Nov. 2.

Abstract: http://asa.aip.org/web2/asa/abstracts/search.oct11/asa568.html

Highlights: Thursday, November 3

Ear anatomy may amplify irritating tones of chalkboard squeak: The sound of fingernails on a chalkboard sets many people's teeth on edge, and now a team of researchers from the University of Cologne in Germany and the University of Vienna in Austria think they know why. In a stu
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Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11

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