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:4/26/2016)... , April 27, 2016 ... the  "Global Multi-modal Biometrics Market 2016-2020"  report to ... ) , The analysts forecast the ... CAGR of 15.49% during the period 2016-2020.  ... number of sectors such as the healthcare, BFSI, ...
(Date:4/14/2016)... 14, 2016 BioCatch ™, ... today announced the appointment of Eyal Goldwerger ... Goldwerger,s leadership appointment comes at a time ... the deployment of its platform at several of the ... which discerns unique cognitive and physiological factors, is a ...
(Date:3/29/2016)... 29, 2016 LegacyXChange, Inc. (OTC: ... and SelectaDNA/CSI Protect are pleased to announce our successful ... a variety of writing instruments, ensuring athletes signatures against ... collectibles from athletes on LegacyXChange will be assured of ... DNA. Bill Bollander , CEO states, ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... ... 26, 2016 , ... After several promising treatments in Panama ... City of Knowledge in Panama, a 6 year-old Duchenne’s muscular dystrophy patient received ... year following FDA approval of a second application for a single patient, investigational ...
(Date:5/25/2016)... Portland, Oregon (PRWEB) , ... May 25, 2016 ... ... Base Set features a variety of fracture-specific plating options designed to address fractures ... provide industry-leading fracture fixation solutions. , The Acumed Ankle Plating System 3 is ...
(Date:5/25/2016)... ... May 25, 2016 , ... Lady had been battling arthritis since ... ligament in her left knee. Lady’s owner Hannah sought the help of Dr Jeff ... surgeon, to repair her cruciate ligament and help with the pain of Lady’s arthritis. ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... identity. The new Media Cybernetics corporate branding reflects a results-driven revitalization for a ... image analysis. The re-branding components include a crisp, refreshed logo and a new ...
Breaking Biology Technology: