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:1/27/2020)... , ... January 27, 2020 , ... On Thursday, February ... Solutions Life Sciences, Reed Tech and Richard Castle, Global Account Manager Medical ... discussing the procedure, other topics include EU MDR timing deadlines, best practices in creating ...
(Date:1/24/2020)... FARMINGTON, Conn. (PRWEB) , ... January 24, 2020 , ... ... populations down to the strain level, today announced that the company will debut a ... place January 26-29. , The new product, Shoreline Biome's Rapid Prep kit, is ...
(Date:1/24/2020)... ... January 24, 2020 , ... Worldwide Business with ... President Dr. Stanley Stanbridge and Vice President of Sales and Marketing Jeff Maier to ... Network as sponsored content on Sunday, Jan. 26, 2020 at 5:30 p.m. EST and ...
Breaking Biology News(10 mins):
(Date:2/19/2020)... ... February 18, 2020 , ... ... populations down to the strain level, recently unveiled a novel DNA isolation product. ... and unbiased isolation of high molecular weight (HMW) single-stranded DNA (ssDNA) in excess ...
(Date:2/19/2020)... ... February 19, 2020 , ... Red ... life sciences industry, today announced the opening of a new office in Tokyo, ... Nucleus R&D. , Red Nucleus announced the new office in response to customer ...
(Date:2/11/2020)... ... February 11, 2020 , ... INSPAN ... a long-term follow-up clinical study of outpatient L4-L5 lumbar interspinous fixation for ... extension block design, the Inspan device fixates the spine to allow for ...
(Date:2/10/2020)... ... ... R3 Medical Training announced it is now registering for its next Comprehensive ... is hands on involving real patients and stem cell biologics, with every attendee receiving ... Training Course has received rave reviews from attendees, who love the hands on nature ...
Breaking Biology Technology:
Cached News: