Navigation Links
When one side does not know about the other one
Date:3/1/2012

Whenever we are doing something, one of our brain hemispheres is more active than the other one. However, some tasks are only solvable with both sides working together. PD Dr. Martina Manns and Juliane Rmling of the Ruhr-Universitt Bochum are investigating, how such specializations and co-operations arise. Based on a pigeon-model, they are proving for the first time in an experimental way, that the ability to combine complex impressions from both hemispheres, depends on environmental factors in the embryonic stage. The results of the study are published online in Nature Communications.

Biased light stimulation

Within the egg bird embryos always turn their head in such a way that one eye is turned close to the eggshell, and the other one is covered by the body. This causes an asymmetrical light stimulation, which influences developmental processes in both brain halves. PD Dr. Manns uses this mechanism for her experiment. One group of embryos hatch in a lighted incubator, another one in complete darkness. Afterwards the scientists analyze the degree of interhemispheric communication in both groups. The results show that information exchange is impaired without light-stimulation. This research sheds light on the origin of communication processes in the brain. Developmental disorders like ADHD or autism are characterized by a deviating pattern between the two brain halves. Therefore, there is a possibility that the results may help to understand those disorders and give hints for new therapeutic approaches.

Classification of colour-pairs

To determine how efficient the animals are able to handle incoming information, Manns and Rmling confront the animals with a task that can only be solved with both brain hemispheres working together. For that purpose, the two psychologists use colour-pairs of a transitive line (A>B>C>D>E) at which one of the elements is rewarded with food. First the pigeons have to learn to discriminate the combinations A/B and B/C with one eye, and C/D and D/E with the other one. Afterwards, they can use both eyes to decide between, for example, the colours B/D. However, only birds with embryonic light experience are able to solve this problem.


'/>"/>

Contact: Dr. Martina Manns
Martina.Manns@rub.de
49-234-322-4634
Ruhr-University Bochum
Source:Eurekalert

Related biology news :

1. NJIT invites manufacturers to free summit about clean energy
2. A bugs (sex) life: Diving beetles offer unexpected clues about sexual selection
3. New website shares information about deadly tree pathogens
4. Global experts question claims about jellyfish populations
5. Survey tracks 55+ attitudes about the environment
6. The good news about carbon storage in tropical vegetation
7. Penn researchers help solve questions about Ethiopians high-altitude adaptations
8. New findings by St. Michaels researchers about the way cells work
9. Study of skates and sharks questions assumptions about essential genes
10. Dinosaurs with killer claws yield new theory about flight
11. Penn geneticists help show bitter taste perception is not just about flavors
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... SANTA MONICA, Calif. , April 13, 2017 /PRNewswire/ ... New York will feature emerging and ... Innovation Summits. Both Innovation Summits will run alongside the ... variety of speaker sessions, panels and demonstrations focused on ... east coast,s largest advanced design and manufacturing event will ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
Breaking Biology News(10 mins):
(Date:4/25/2017)... Oakland, California (PRWEB) , ... April 25, 2017 ... ... Artificial Intelligence (AI), leading supplier of Common Lisp (CL) development tools, and market ... 10.1 , which includes key performance enhancements now available within the most effective ...
(Date:4/25/2017)... SEATTLE, WA (PRWEB) , ... April 25, 2017 , ... ... technology division of Quorum, will be featured in multiple sessions at this week’s ... range from emerging trends to best practices in clinical research. , "We are excited ...
(Date:4/21/2017)... ... April 21, 2017 , ... The University of Connecticut, in ... to three startups through the UConn Innovation Fund. The $1.5 million UConn Innovation ... with UConn. , The UConn Innovation Fund provides investments of up to $100,000 ...
(Date:4/20/2017)... , ... April 20, 2017 , ... ... , this new webinar will explore challenging patient cases when screening for direct ... hospital, there may be a need for bridging parental anticoagulation especially for those ...
Breaking Biology Technology: