HOME >> BIOLOGY >> NEWS
White noise delays auditory organization in brain

Exposure to continuous white noise sabotages the development of the auditory region of the brain, which may ultimately impair hearing and language acquisition, according to researchers from the University of California, San Francisco.

According to the scientists, the young rats used in their study were exposed to constant white noise that is relevant to the increasing, random noise encountered by humans in today's environment. They theorize that their findings could aid in explaining the increase in language-impairment developmental disorders over the last few decades.

The researchers, which included Howard Hughes Medical Institute medical student fellow Edward Chang and otolaryngology professor Michael Merzenich at the University of California at San Francisco, published their findings in the April 18, 2003, issue of the journal Science.

"While the rat is not a perfect model of human auditory development, it does allow us to investigate the fundamental role of early sensory experience in mammalian auditory development," said Chang. "For example, we do know that exposing infant rats to specific sound stimuli can induce long-standing representational changes in the brain. Other researchers have shown that there are striking parallels in humans and other animals."

Although past experiments have demonstrated the important effects that visual experience can have on brain development in animals and humans, Chang said very few comparable experiments have been reported that explore the effects of patterned early auditory experience on cortical development.

"Auditory experience is clearly an important factor in humans for learning language," he said. "We learn to speak and read through our sensitivities to speech sounds that are heard during early life."

Thus, Chang and Merzenich designed experiments in which they reared rat pups in an environment of moderate continuous background noise, which, while not injurious to their per
'"/>

Contact: Cindy Fox Aisen
aisenc@hhmi.org
317-843-2276
Howard Hughes Medical Institute
17-Apr-2003


Page: 1 2 3

Related biology news :

1. White House to honor UNC School of Medicine scientist for early career achievement
2. White tea beats green tea in fighting germs
3. White House lauds Physiological Society for mentoring underrepresented minorities in biomedicine
4. Whites, African-Americans better rate medical care experiences when seeing same-race physicians
5. White House awards National Medal of Science to Rockefeller Universitys James Darnell
6. White shark attack shows theyre not man-eaters
7. Dr. Francis White, FUHS/CMS, receives MERIT Award
8. White sharks migrate thousands of miles across the sea, new study finds
9. Whitehead press seminar 2001: new horizons in the post-genome world
10. Rutgers Eileen White nets $4.5-million NIH award for cancer research
11. Whitehead Institute receives National Science Foundation grant to sequence Neurospora

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: