Navigation Links
High-volume portable music players may impair ability to clearly discriminate sounds

Growing numbers of people enjoy listening to music on portable music players or cell phones, and many tend to turn up the volume, especially in noisy surroundings. In a study published March 2, 2011 in the open-access journal PLoS ONE, researchers explore the potential effects of this behavior on hearing.

The study was a collaboration between Drs. Hidehiko Okamoto and Ryusuke Kakigi from the National Institute for Physiological Sciences, Japan, and Drs. Christo Pantev and Henning Teismann from the University of Muenster. The researchers demonstrated that listening to loud music through earphones for extended periods in noisy surroundings can cause neurophysiological changes related to clear discrimination of sounds, even if the hearing threshold is normal. This auditory abnormality concerns "the vividness of sounds" and cannot be recognized by the usual hearing test in which subjects are examined using a series of individual tones in a silent environment. These results may support a future auditory assessment plan for long-term portable music player users.

The research group examined the brain's response to sound using the biomagnetism measurement device MEG (magnetoencephalography), which makes it possible to measure the brain activity without any subject's behavioral response. They recorded the brain responses of two groups of 13 young adults; one group had regularly listened to music at full blast, and the other group had not. Subjects listened to a sound of a specific frequency contained in background noises while watching a movie. The inability to dissociate a sound from background noises was considerably more pronounced in the habitual portable music player users. This difficulty cannot be detected with the current standard hearing test, which yielded the same results in both groups.

According to Dr. Okamoto, "It can be said that listening to music at high volumes burdens the nerves of the brain and auditory system and can cause a decline in the ability to discriminate sounds, even if the usual hearing test results are normal and the subject is unaware of any changes." He also claims, "It would be better to suppress environmental noises by using devices such as noise cancellers instead of turning up the volume when enjoying a mobile music player in a noisy place."


Contact: Hidehiko Okamoto
National Institute for Physiological Sciences

Related medicine news :

1. Angeles Launches New Portable Hot Water Sinks
2. Study Results Validate Shape-HF as Simplified, Portable Cardiopulmonary Exercise Testing System
3. Cools Down with Portable Air Conditioners
4. Solar Eclipz's Portable Umbrella And Canopy Curtain, Called The ezShade, Wins Coveted Outstanding Product Award From Disney Owned iParenting Media Awards
5. VCU Medical Center leads study of first US portable driver for powering the total artificial heart
6. Virtual Viewbox offers portable radiology access for physicians
7. Portable laser devices to improve disease diagnosis
8. Portable breast scanner allows cancer detection in the blink of an eye
9. Study finds problems with reviewing medical images from portable media
10. Portable, less costly peritoneal dialysis shows no additional catheter risk factors
11. Neutrogena Signs Actress & Musician Miranda Cosgrove
Post Your Comments:
Related Image:
High-volume portable music players may impair ability to clearly discriminate sounds
(Date:10/13/2015)... ... October 13, 2015 , ... ... that targets the unique health needs of new moms. Postnatal Omega-3, which ... ( ), utilizes Nordic Naturals’ exclusive, new, ultra-concentrated omega-3 oil. This ...
(Date:10/13/2015)... ... October 13, 2015 , ... T-System and Centegra ... than 59,000 emergency department visits per year, today announced the successful and rapid ... improve clinical, operational and financial outcomes. , In less than four ...
(Date:10/13/2015)... ... ... Tempe Dental Care, a leading Tempe dentists’ office, celebrates offering gentle, pain free ... more than 5 years. A leading cause of emergency room visits, school absences, and ... timely. , Sedation dentistry provides an anxiety-free dental experience with safe ...
(Date:10/13/2015)... Miami, FL (PRWEB) , ... October 13, 2015 , ... ... announces the Driveway Snow Blanket, a snow melting invention that helps people in clearing ... $17 billion and will continue to grow at 3.8% per year," says Scott Cooper, ...
(Date:10/13/2015)... , ... October 13, 2015 , ... According to an ... suffered an orbital fracture when a teammate accidentally elbowed him in the left eye ... recent eye injury is just one of a series of setbacks, including a knee ...
Breaking Medicine News(10 mins):
(Date:10/13/2015)... , Oct. 13, 2015 Health Gorilla ( ... Clinical Network – a secure platform for clinical data ... patients interact about and manage healthcare in the US. The ... round, for a combined total of $4.4M raised to date, ... from True Ventures , Harris Barton , ...
(Date:10/13/2015)... -- Research and Markets ( ) has announced ... Cosmetics Packaging - Market Opportunities and Forecasts, 2014 - ... --> --> The anti-counterfeit pharmaceutical ... of 15.7% during 2015-2020 --> ... for about 52% share in 2014 and would continue ...
(Date:10/12/2015)... the United States . By early next year, ... the United States . By early next year, ... The University of Texas MD Anderson Cancer Center, Elekta and ... Tesla) MRI-guided linear accelerator in the United States ... a non-clinical capacity. Royal Philips (NYSE: PHG ...
Breaking Medicine Technology: