HOME >> BIOLOGY >> NEWS
Disabling a sensory organ prompts female mice to act like male mice

nic vocalization characteristic of the male mouse. Correspondingly, female traits such as nursing behaviors and maternal aggression were diminished.

The findings provide strong evidence that male sexual behavior is hard wired into the female mouse brain and suggests, more broadly, that male and female courtship behaviors exist in the brains of both sexes and are switched on or off by the chemical cues mice use to initiate sex.

"The female behaves exactly like the male," said Dulac. "In the big picture, it suggests that the female brain has a perfectly functional male behavioral circuit."

"People who observe animal behavior have been struck by the fact that the biggest differences in behavior between animals of a given species are gender based," Dulac explained, but little is known about the underlying differences in the brain that govern the characteristic patterns of gender-based behavior.

Scientists have explored many avenues to explain sexually dimorphic behavior. To try and ferret out its cause, they've looked at everything from the influences of hormones such as testosterone to anatomy, positing that there may be a region of the brain that organizes gender-based behavior.

The sensory-controlled neural switch that governs the circuit is most likely different in male and female mice, Dulac noted, but that may be the extent of gender differences in the brain.

The work of Dulac and her colleagues promises to open a new window to the neural mechanisms that underlie gender-based behavior in animals by bringing the senses and an animal's ability to process what it sees, hears, and smells into the equation.

What occurs in humans and other animals may be quite different, Dulac noted, because the mouse depends largely on pheromones and its sense of smell, while humans and many other animals respond more to visual cues or a combination of sensory cues.

Scientists have been studying the vomeronasal organ for a century and
'"/>

Contact: Jennifer Michalowski
michalow@hhmi.org
301-215-8576
Howard Hughes Medical Institute
5-Aug-2007


Page: 1 2 3

Related biology news :

1. Disabling key protein may give physicians time to treat pneumonic plague
2. Disabling a carbohydrate trigger reduces obesity and appetite
3. Disabling gene defuses rheumatoid arthritis in mice
4. A sensory organ, not the brain, differentiates male and female behavior in some mammals
5. Carnegie Mellon University research shows how sensory-deprived brain compensates
6. Chemical signaling helps regulate sensory map formation in the brain
7. Change in neurons responsiveness marks newly formed sensory associations during learning
8. Bad aftertaste? New sensory on/off switch may cure bane of artificial sweetener search
9. Grasshopper love songs give insight into sensory tuning
10. Research shows skeleton to be endocrine organ
11. Brains hearing center may reorganize after implant of cochlear device

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Disabling sensory organ prompts female mice act like male mice

(Date:2/5/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/6lngtl/global_biometrics ) ... Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, ... their offering. , In global ... anticipated to overtake North America ... towards IT security, government biometric based projects such ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... "Biometrics - A Global Market Overview" report to their ... technology is to ensure that an individual is who she/he ... may make use of a person,s unique physical characteristics, such ...
(Date:1/22/2015)... MELBOURNE, Fla. , Jan. 13, 2015  Today, ... wearable technology, launched its crowdfunding campaign on Fundable, ... accelerate the build of production capacity to meet ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
Breaking Biology News(10 mins):Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3Biometrics - A Global Market Overview 2Biometrics - A Global Market Overview 3FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2
(Date:3/5/2015)... Texas (PRWEB) March 05, 2015 ... of acute and chronic orthopedic conditions such as ... knee, tennis elbow, and joint pain due to ... be administered during orthopedic surgeries to promote better ... scientific advances in nearly pain-free bone marrow harvesting ...
(Date:3/4/2015)... 2015 The UPMC Center for Health Security ... the Emerging Leaders in Biosecurity Initiative (ELBI). As part ... field of biosecurity, UPMC has selected 28 US and ... of backgrounds, including biological science, medicine, policy, the military, ... "With the vision and support of the Defense Threat ...
(Date:3/4/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/nqxxt3/biomarkers ) ... report "Biomarkers - Technologies, Markets and Companies" ... report follows the broad definition of a biomarker ... and evaluated as an indicator of normal biological ... to a therapeutic intervention. Tests based on biomarkers ...
(Date:3/4/2015)... (PRWEB) March 04, 2015 PRC ... in the San Francisco Bay Area, will exhibit and ... Israel Conference 2015 on March 25th and 26th ... to build relationships with Israeli life science companies seeking ... trials. The company’s services span all phases of human ...
Breaking Biology Technology:Riordan-McKenna Institute of Regenerative Orthopedics and Stem Cell Therapy Announces Open House in Southlake, Texas on Friday, March 6th from 5:30 pm to 7:30 pm. 2Riordan-McKenna Institute of Regenerative Orthopedics and Stem Cell Therapy Announces Open House in Southlake, Texas on Friday, March 6th from 5:30 pm to 7:30 pm. 3Riordan-McKenna Institute of Regenerative Orthopedics and Stem Cell Therapy Announces Open House in Southlake, Texas on Friday, March 6th from 5:30 pm to 7:30 pm. 4Riordan-McKenna Institute of Regenerative Orthopedics and Stem Cell Therapy Announces Open House in Southlake, Texas on Friday, March 6th from 5:30 pm to 7:30 pm. 5UPMC Center for Health Security Announces 2015 Emerging Leaders in Biosecurity 2UPMC Center for Health Security Announces 2015 Emerging Leaders in Biosecurity 3Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 2Global Biomarkers Report 2014-2024 - Technologies, Markets and Companies 3PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 2PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 3PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 4
Cached News: