Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Pheromone from mother's milk may rapidly promote learning in newborn mammals

11.10.2006
By studying the ability of newborn rabbit pups to learn the significance of new odors, researchers have found that a mammary pheromone secreted in mother's milk may act as a chemical booster that facilitates the ability of pups to quickly associate environmental odors with the opportunity to nurse.

The findings, which deepen our understanding of pheromone function and how learning occurs in the earliest days of life, are reported in the October 10th issue of the journal Current Biology, published by Cell Press, by a team including Gérard Coureaud and Anne-Sophie Moncomble and colleagues from the Centre Européen des Sciences du Goût in Dijon, which is supported by the Centre National de la Recherche Scientifique, and the Université de Bourgogne and Inra. Benoist Schaal, another author of the study, is the director of the Centre Européen des Sciences du Goût.

Newborn mammals are highly dependent on their mother's milk for survival, and they typically exhibit a defined sequence of actions when searching for milk. This searching behavior rapidly becomes increasingly directed, showing that mammalian newborns are efficient learners. Past studies of this very early learning in the European rabbit (Oryctolagus cuniculus) have shown that newborn pups engage in typical food-searching movements in response to olfactory signals that include the mammary pheromone secreted in mother's milk. The ability of newborns to rapidly improve their milk-finding skills likely involves learning that "new" odors--for example, those from the mother's abdomen, or of milk itself--are associated with food.

In the new work, the researchers investigated whether the mammary pheromone plays a role in the ability of newborns to learn to associate other odors with the availability of milk. By presenting newborns with the pheromone in combination with an otherwise "neutral" odor and subsequently testing whether the neutral odor alone would later elicit the typical food-searching behavior in the pups, the researchers were able to show that the pheromone is indeed effective at promoting the ability of the newborns to learn the significance of new odors. The researchers showed that this pheromone-induced learning is efficient from the time of birth and is capable of promoting the learning of successive different odorants presented to newborn pups.

... more about:
»Pheromone »Rapidly »ability »mammary »newborn »odor

Given its ability to promote the learning of new olfactory cues, the mammary pheromone may act as a kind of organizing signal that boosts the brain's ability to associate new odors with milk availability. This would in turn facilitate an essential skill: the ability of newborn pups to rapidly hone their suckling instincts during the first days of life.

Heidi Hardman | EurekAlert!
Further information:
http://www.current-biology.com

Further reports about: Pheromone Rapidly ability mammary newborn odor

More articles from Life Sciences:

nachricht Multi-institutional collaboration uncovers how molecular machines assemble
02.12.2016 | Salk Institute

nachricht Fertilized egg cells trigger and monitor loss of sperm’s epigenetic memory
02.12.2016 | IMBA - Institut für Molekulare Biotechnologie der Österreichischen Akademie der Wissenschaften GmbH

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>