Navigation Links
Measuring fatigue through the voice
Date:12/22/2010

WASHINGTON, D.C., December 22, 2010 -- What can scientists learn from watching a group of people sitting around, chatting, playing movies, reading, and happily making new friends? Quite a lot, says University of Melbourne, Australia acoustician Adam Vogel, who carefully observed this sort of group in a fatigue management study he and his colleagues describe this month in The Journal of the Acoustical Society of America.

Their report shows the effects of sustained wakefulness on speech and describes a novel method to acoustically analyze the effects of fatigue on the central nervous system as revealed through speech.

The findings are significant to workers, employers, public safety officials, and military leaders who are concerned with managing fatigue over long shifts, notes Vogel.

"There is increasing interest in the development of objective non-invasive systems that can be used to assist the identification and management of fatigue in both health and workplace settings," he says.

Measuring fatigue by analyzing a person's speech and quantifying any changes from their normal, rested speech may enable doctors to make objective decisions about a person's ability to function in a work environment. It may also be a useful tool for monitoring fatigue in clinical trials where alertness is a key measured outcome.

The Australian study involved 18 young adults who provided speech samples (sustained vowels, reading counting and reading tasks) every two hours. Vogel and his colleagues looked at components of speech such as length of pauses and total time to complete a spoken task. Their results showed that as fatigue progresses, speech slows and variations in pitch increase and tone diminishes. Their conclusion is that we have less control over the muscles that produce speech as we become more and more tired."Although remaining awake for 24 hours is physically and mentally exhausting, it's actually a great way to make new friends," notes Vogel. "Most of them just entertained themselves between testing by watching movies, reading or talking amongst themselves."


'/>"/>

Contact: Jason Socrates Bardi
jbardi@aip.org
858-775-4080
American Institute of Physics
Source:Eurekalert

Related biology news :

1. Measuring water from space
2. Measuring molecules to improve drug design
3. Measuring snow with a bucket, a windmill, and the sun?
4. Carbon measuring system to help mitigate climate change
5. Measuring intellectual disability
6. Epigentek Develops a New Method of Measuring Global DNA Methylation
7. SEA to conduct expedition dedicated to measuring plastic marine debris in the North Atlantic Ocean
8. Measuring protein movements with nanosecond resolution
9. Measuring the stability of organic waste
10. NSF awards $10M to develop computing techniques for measuring and analyzing child behavior
11. New paper examines approaches to measuring protein in foods in context of deadly adulterations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/1/2017)... 2017 IDTechEx Research, a leading provider of ... the availability of a new report, Sensors for Robotics: Technologies, ... Reading ... ... Source: IDTechEx Report "Sensors for Robotics: Technologies, Markets and Forecasts 2017-2027: ...
(Date:1/25/2017)... , Jan. 25, 2017 The Elements ... Management (IAM) lifecycle is comprised of a comprehensive ... the purpose of maintaining digital identities and providing ... and applications. There are significant number of programs ... time to time by optimizing processes and changing ...
(Date:1/19/2017)... 19, 2017 According to a new report published by ... - 2022," the global biometric sensor market is expected to garner $1.5 billion ... 2015, Asia-Pacific dominated the global market and contributed over ... Continue Reading ... ...
Breaking Biology News(10 mins):
(Date:2/16/2017)... Belgium (PRWEB) , ... February 16, 2017 , ... ... (SIOTAD) framework primarily aimed at the agricultural industry. Pilot studies are about to get ... products through IoT, Big Data and 5G innovations. The concept is expected to be ...
(Date:2/16/2017)... 16, 2017  MDNA Life Sciences Inc. (MDNA), ... liquid biopsy tests based on the mitochondrial genome, ... license agreement with its first international commercial partner, ... test for prostate cancer, the Prostate Mitomic Test ... This is the first overseas appointment for MDNA ...
(Date:2/16/2017)... --  Biostage, Inc. (Nasdaq: BSTG ), ... organ implants to treat cancers and other life-threatening conditions ... closing on February 15, 2017 of its previously announced ... warrants to purchase 20,000,000 shares of common stock, for ... priced at $0.40 per share of common stock, with ...
(Date:2/16/2017)... , Feb. 16, 2017  Champions Oncology, Inc. (NASDAQ: ... development and sale of advanced technology solutions and products ... today announced the addition of new cohorts of PDX ... new models will expand Champions, product line in hepatocellular ... neck cancer, AML, and non-small cell lung cancer (including ...
Breaking Biology Technology: