HOME >> BIOLOGY >> NEWS
Training improves sound localization in ferrets

Upon hearing the blare of a siren, you would quickly home in on the source and direction of the sound and take the necessary action, or precaution, such as pulling your car over or foregoing crossing the street until the ambulance has cleared. Mammals rely on sound localization skills to communicate, escape threats, and forage, among many other tasks. All through development the adult brain retains the capacity to rewire the networks that underlie these skills but it's not clear which tasks benefit from plasticity or how the brain engenders this flexibility. In a study published in the open access journal PLoS Biology, Oliver Kacelnik, Andrew King, and colleagues showed by manipulating the hearing of adult ferrets that ferrets with obstructed hearing can quickly adapt to altered auditory cues when trained to do so in order to perform a necessary task. Their findings reveal that the frequency of the training was crucial in boosting the rate and extent of their improvement.

The brain processes spatial cues in the sound waves that enter each ear to localize sound and interprets sound on the horizontal plane by using disparities in how the sound reaches each ear, called interaural time differences and interaural level differences. Changes in level at different frequencies can reveal the source's elevation.

To study adaptive hearing in an adult mammal, the authors blocked the left ears of ferrets with specially outfitted earplugs and measured their ability to localize sounds in the horizontal plane. They trained ferrets to approach a sound source to receive the reward. When the ferrets licked a waterspout, they triggered a burst of noise from one of twelve speakers. They were presented with sound bursts lasting either 1,000 or 40 milliseconds. Without earplugs, ferrets had no trouble localizing the sounds. They were slightly less adept at localizing the brief bursts. With earplugs, performance dropped considerably for both bursts. Ferrets
'"/>

Contact: Paul Ocampo
press@plos.org
415-624-1224
Public Library of Science
6-Mar-2006


Page: 1 2 3

Related biology news :

1. Training breathing muscles improves swimming muscles performance
2. New test improves detection of liver cancer
3. Jefferson scientists patent dramatically improves
4. Co-operation between GSF and clinic improves outlook for sarcoma patients
5. HIV survival improves if patients stay in care
6. Preterm infants with RDS -- surfactant replacement therapies improves neonatal survival
7. New knowledge improves rice quality
8. Statin treatment improves spatial memory in mouse models of Alzheimers
9. Mutation improves memory, may lead to memory-enhancing pill
10. Switching genes to overdrive improves muscular dystrophy symptoms in mice
11. Clemson research improves inkjet technology

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


(Date:7/10/2020)... ... July 08, 2020 , ... ... Gene Therapy Regulation, An FDAnews Webinar, Wednesday, July 22, 2020 • 1:30 p.m.-3:00 ... but what is the most effective way to complete one? Will the study ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. ... Neihulizumab, a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at ... Paul J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label ...
(Date:7/1/2020)... ... July 01, 2020 , ... ... and solutions for glioblastoma—the most common and aggressive adult brain cancer—announced today the ... PhD. Senior Fellows are charged with supporting the organization’s initiatives and overall vision. ...
Breaking Biology News(10 mins):
(Date:7/10/2020)... ... July 09, 2020 , ... ... is commonly used to suppress pigment formation in zebrafish embryos, maintaining optical transparency ... led by Dr MA has been using the zebrafish model to investigate the ...
(Date:7/7/2020)... , ... July 06, 2020 , ... ... Awards. Entries from Roche, Eli Lilly, Bristol-Myers Squibb, the University of Chicago, Massachusetts ... Bio-IT World has hosted an elite awards program, highlighting outstanding examples of how ...
(Date:7/1/2020)... ... June 30, 2020 , ... ... today announced that the launch of a new clinical diagnostics immuno-oncology ... the tumor microenvironment (TME). , “Flagship’s TissueInsight is a service that aids ...
(Date:6/28/2020)... ... June 25, 2020 , ... Lumeda Inc. ... cancer, today announced the company has entered a license agreement with Roswell Park ... Lumeda globally exclusive rights to Roswell Park intellectual property surrounding a novel medical ...
Breaking Biology Technology:
Cached News: