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:7/1/2020)... ... July 01, 2020 , ... Catalent, a global ... of Teva-Takeda Pharmaceuticals’ packaging facility in Minakuchi, located in the Shiga prefecture of ... located in Kakegawa, the new 60,000-square-foot facility will provide customers with flexible clinical ...
(Date:6/28/2020)... ... June 25, 2020 , ... ... software solutions for biopharmaceutical R&D, today announced that it has entered into ... full-length multispecific antibodies (Multiclonics®), to support their translational and clinical research strategy ...
(Date:6/25/2020)... ... June 24, 2020 , ... ... software-driven clinical data services that accelerate drug development, is collaborating with Karyopharm Therapeutics ... inhibitor, in hospitalized patients with severe COVID-19. This is the first study of ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... BINGHAM FARMS, Mich. (PRWEB) , ... August 12, ... ... International Consulting Group, Inc. (EMMA International), a global leader in FDA compliance ... ranking of the nation’s fastest-growing private companies. The list represents a unique look ...
(Date:7/31/2020)... ... 2020 , ... R3 Stem Cell International is now offering patients the opportunity ... cells total, patients may choose which extremities they would like treated. , Several studies ... Disord. 2016). At R3 International, umbilical cord tissue is obtained from a lab with ...
(Date:7/31/2020)... Mass. and SOMERSET, N.J (PRWEB) , ... July ... ... leading genome editing company, and Catalent, the leading global provider of advanced delivery ... consumer health products, today announced that they have entered into a strategic partnership ...
(Date:7/22/2020)... ... ... Join experts from Reed Tech , Gary Saner, Sr. Manager, Information Solutions ... live webinar on Thursday, August 13, 2020 at 11am EDT (4pm BST/UK). , ... for medical devices, the NMPA has departments dealing with medical device registration (pre-market approvals) ...
Breaking Biology Technology:
Cached News: