HOME >> BIOLOGY >> NEWS
When male fish hum, females swim in, thanks to hormones, adaptable hearing

A small fish with a remarkable hearing system that enables females to zero in on the love hums broadcast by males during the breeding season is providing scientists with clues that someday might provide a treatment for people with high-frequency hearing loss. Researchers from the University of Washington and Cornell University have duplicated a natural physiological change that occurs in the female plainfin midshipman fish (Porichthys notatus) during the breeding season. Working with non-reproductive females, the researchers boosted hormone levels that alter the fish's inner-ear hearing sensitivity for a short period so they can better hear the males' humming calls.

"This is the first time anyone has been able to hormonally induce a change in hearing sensitivity in a vertebrate," said Joseph Sisneros, a UW assistant psychology professor who studies the neural basis of behavior. He is the lead author of a paper being published in the July 16 edition of the journal Science.

Sisneros and a Cornell research team headed by Andrew Bass, found that a spike in levels of the hormones testosterone and estradiol (an estrogen) triggers changes in the females' inner ear so they are capable of detecting higher frequencies in the males' multi-harmonic humming. This process couples the transmission of sound by the males and reception by the females.

"We suspected that enhancing the sensitivity of the females' ear to the upper harmonics of the males' hums should improve detection of their vocalization," said Bass, who is a professor of neurobiology and behavior. "Upper harmonics propagate farther in shallow-water environments like those where midshipman males build nests and sing their love songs to attract females. But the females can't process this vital information and respond appropriately if they can't hear it. Steroid hormones appear to provide a key molecule that leads to shifts in the hearing sensitivity of females."

The midshipman fish
'"/>

Contact: Joel Schwarz
joels@u.washington.edu
206-543-2580
University of Washington
15-Jul-2004


Page: 1 2 3

Related biology news :

1. Link between alcohol consumption and muscle damage in females
2. Male flesh flies high-speed pursuit of females
3. Obesity may exacerbate a heart disorder in African American females
4. New study finds need for improved nutrition for low-income African American females
5. Differences in response to amphetamines found between males and females pre-puberty
6. Magee-Womens Research Institute study finds undiagnosed sexually transmitted disease infection rate nearly 1 in 5 among adolescent females
7. Somethings fishy with Columbia chinook: females carry males genetic signature
8. Breast cancer follow-ups no longer guess-work thanks to new physics research
9. Mediterranean fishery recovers, thanks to manmade pollutants
10. Human lymph disease could tail off thanks to gecko
11. Blooming health thanks to a frog

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


(Date:7/10/2019)... ... July 10, 2019 , ... Inference Solutions , ... organizations, today announced its role in Pizza Hut Australia’s digital transformation initiative ... franchisees. A key part of this initiative is implementation of an automated call-steering ...
(Date:7/9/2019)... (PRWEB) , ... July 08, 2019 , ... ... company’s footprint in the biotechnology hub of Cambridge, MA. This expansion strengthens KMK’s ... primary market research , and sales force effectiveness consulting for the ...
(Date:7/5/2019)... MOUNTAIN VIEW, Calif. (PRWEB) , ... July 05, ... ... is partnering with Microsoft to bring its patented Tractus™ Platform to governments around ... solution will bring cutting edge technology and point of care solutions to operating ...
Breaking Biology News(10 mins):
(Date:5/8/2019)... ... ... Standing at 16.2 hands, Atlas is on the large side for a Quarter Horse. ... among other activities. When loping around a corner in late 2017, Atlas tripped and ... to only being able to walk. Fortunately Atlas’ owner, Kelly, sought the opinion of ...
(Date:5/4/2019)... ... May 03, 2019 , ... ... President of the Dakila Pesquisas Association, the scientist and ufologist Urandir Fernandes de ... Brasília (DF). Urandir detailed the results of some research carried out by the ...
(Date:5/2/2019)... ... April 30, 2019 , ... ... ISO 9001:2015 standard, REPROCELL USA Inc. has demonstrated its ability to provide ... USA Inc. aims to enhance customer satisfaction through the effective implementation of ...
(Date:5/2/2019)... ... May 02, 2019 , ... Stay on top of current hot topics through ... Access to all webinars is free, so be sure to register today to save ... http://www.xtalks.com to see our upcoming webinars: , CLINICAL TRIALS , May 7 ...
Breaking Biology Technology:
Cached News: