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:1/6/2017)... -- Delta ID Inc., a leader in consumer-grade iris scanning ... CES® 2017. Delta ID has collaborated with Gentex Corporation ... of iris scanning as a secure, reliable and convenient ... car, and as a way to elevate the security ... ID and Gentex will demonstrate (booth #7326 LVCC) a ...
(Date:1/4/2017)... VEGAS , Jan. 4, 2017  CES ... performance biometric sensor technology, today announced the launch ... sensor systems, the highly-accurate biometric sensor modules ... biometric technology, experience and expertise. The two ... Benchmark designed specifically for hearables, and Benchmark BW2.0, ...
(Date:12/22/2016)... Dec. 20, 2016  As part of its longstanding mission ... personal genetics company, recently released its latest children,s book, titled ... book focuses on the topics of inheritance and variation of ... (NGSS) taught in elementary school classrooms in the US. ... by illustrator Ariana Killoran , whose previous book with ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... MILPITAS, Calif. , Jan. 17, 2017 /PRNewswire/ ... today announced that it has initiated a global ... PTG-100, an oral peptide that targets alpha4beta7 integrin. ... design study is to evaluate the safety/tolerability and ... colitis patients with moderate to severe active disease. ...
(Date:1/16/2017)... ... January 16, 2017 , ... ... precedential publication its decision on the appeal filed by India-based Dishman Pharmaceutical & ... of contract against DPCL and one of its Dishman Group’s 100% wholly owned ...
(Date:1/16/2017)... ... 16, 2017 , ... Attagene , a Research Triangle ... Small Business Administration. The Tibbetts Award honors the Small Business Innovation Research ... are considered the best of the best from the thousands of firms that ...
(Date:1/14/2017)... , ... January 14, 2017 , ... ... new service providing complete end-to-end genome assemblies to researchers around the globe. ... a major obstacle in answering a wide range of scientific questions. The ...
Breaking Biology Technology: