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:8/10/2015)... , August 10, 2015 The latest ... offers comprehensive analysis of the global border security market ... revenues of $16.4bn in 2015. Now: Border security ... an example of the business critical issue you need to ... visiongain ,s objective analysis of how this will impact ...
(Date:8/6/2015)... , Aug. 6, 2015 Synaptics Inc. ... human interface solutions, today announced collaboration with Microsoft ... Windows 10. Microsoft leveraged Synaptics, deep expertise in ... system. Through stringent testing, Synaptics, ... certified with Microsoft,s Precision TouchPad (PTP) specification empowering ...
(Date:8/5/2015)... 2015 The biosensors market is proving highly ... into newer sectors, and development of devices resulting in ... has seen the entry of multiple participants each year ... (Photo - http://photos.prnewswire.com/prnh/20150805/255570 ) ... the Global Biosensors Market ( http://www.frost.com/nee9 ), finds ...
Breaking Biology News(10 mins):Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 2Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 3Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 4Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 5Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 6Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 7Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 8Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 9Synaptics Chosen for Human Interface Co-Development on Windows 10 2Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4
(Date:8/28/2015)... ... August 28, 2015 , ... Pittcon is ... will present a session on chemical spectroscopic imaging at JASIS 2015 (Japan Analytical ... Asia’s largest analytical and scientific instruments show which will be held at International ...
(Date:8/28/2015)... Dallas, Texas (PRWEB) , ... August 28, 2015 ... ... Neil Riordan, PhD and orthopedic surgeon, Wade McKenna, DO, announced today that the ... in Dallas, Texas, resulted in complete healing of an otherwise non-healing surgical knee ...
(Date:8/27/2015)... , ... August 27, 2015 , ... ... for venture capital funds, investment firms and animal health companies to hear from ... raised $160 million. Several have also received licensing agreements or distribution contracts. ...
(Date:8/27/2015)... LANSING, Mich. , Aug. 27, 2015  Neogen ... has acquired the stock of United Kingdom ... supplier of microbiological culture media and diagnostic systems. ... has grown into a leading provider of microbial testing ... and clinical testing markets. The company currently sells into ...
Breaking Biology Technology:U.S. Symposium on Imaging Organized by Pittcon’s Program Chairman Chuck Gardner 2U.S. Symposium on Imaging Organized by Pittcon’s Program Chairman Chuck Gardner 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 2Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 4VetStem Biopharma, Inc. Among Seventeen Companies Selected to Present at the KC Animal Health Investment Forum on September 1st 2015 2VetStem Biopharma, Inc. Among Seventeen Companies Selected to Present at the KC Animal Health Investment Forum on September 1st 2015 3Neogen acquires U.K.-based Lab M Holdings 2
Cached News: