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:5/20/2016)...  VoiceIt is excited to announce its new ... By working together, VoiceIt and VoicePass will offer ... take slightly different approaches to voice biometrics, collaboration ... usability. Both ... "This marketing and technology partnership allows ...
(Date:5/12/2016)... 12, 2016 WearablesResearch.com , a brand ... overview results from the Q1 wave of its quarterly ... was consumers, receptivity to a program where they would ... health insurance company. "We were surprised to ... Michael LaColla , CEO of Troubadour Research, "primarily ...
(Date:5/3/2016)... VILNIUS, Lithuania , May 3, 2016 /PRNewswire/ ... today released the MegaMatcher Automated Biometric Identification ... deployment of large-scale multi-biometric projects. MegaMatcher ABIS can ... and accuracy using any combination of fingerprint, face ... of MegaMatcher SDK and MegaMatcher ...
Breaking Biology News(10 mins):
(Date:5/20/2016)... ... ... Kablooe Design, a leading provider of product design and development services to medical ... “We have worked hard to build long-term relationships,” says President and CEO, Tom KraMer. ... serving their product design and development needs through the years.” , Kablooe has earned ...
(Date:5/20/2016)... ... May 20, 2016 , ... The recent recall by ... reported by Food Safety News on May 12, 2016(1), demonstrates the need for faster ... CEO of Baltimore-based biotech firm, PathSensors, Inc. , PathSensor’s latest solution ...
(Date:5/19/2016)... RIDGE, British Columbia , May 19, 2016 ... AdvanTec Global Innovations Inc. (AGI), based out of ... recently added Greenlane Biogas Ltd. to its existing ... 2-year contract manufacturing agreement. AFS along with its ... Technologies (ABT) is a vertically integrated industrial group ...
(Date:5/19/2016)... ... May 19, 2016 , ... KCAS ... welcomed Abu Siddiqui as Director, Large Molecule & Biomarker Bioanalysis. , Dr. Siddiqui ... translational biomarker discovery studies for preclinical and clinical safety programs. “We’ve seen significant ...
Breaking Biology Technology: