Navigation Links
Cc to the brain: How neurons control fine motor behavior of the arm
Date:1/31/2014

scle is sent in two different directions in one direction, to trigger the desired muscular contraction and in the other, to inform the brain that the command has actually been passed on to the musculature." In analogy to e mail transmission, the information is thus not only sent to the recipient but also to the original requester.

Information to brainstem nucleus segregated by function

What happens to the information sent by spinal interneurons to the brain? As Arber's group discovered, this input is segregated by function and spatially organized within a brainstem nucleus. Information from different types of interneurons thus flows to different areas of the nucleus. For example, spinal information that will influence left-right coordination of a movement is collected at a different site than information affecting the speed of a movement.

Fine motor skills supported by dual information stream

Arber comments: "From one millisecond to the next, this extremely precise feedback ensures that commands are correctly transmitted and that via the signals sent back to the brain from the spinal cord the resulting movement is immediately coordinated with the brain and adjusted." Interestingly, the scientists only observed this kind of information flow to the brain for arm, but not for leg control. "What this shows," says Arber, "is that this information pathway is most likely important for fine motor skills. Compared to the leg, movements of our arm and especially our hands have to be far more precise. Evidently, our body can only ensure this level of accuracy in motor control with constant feedback of information."

In further studies, Silvia Arber's group now plans to investigate what happens if the flow of information back to the brain is disrupted in specific ways. Since some interneurons facilitate and others inhibit movement, such studies could provide additional insights into the functionali
'/>"/>

Contact: Heike Sacher
heike.sacher@unibas.ch
41-612-671-449
University of Basel
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Protecting your brain: Use it or lose it
2. Snakes on the brain: Are primates hard-wired to see snakes?
3. Glycogen accumulation in neurons causes brain damage and shortens the lives of flies and mice
4. Astrocytes control the generation of new neurons from neural stem cells
5. Persistent sync for neurons
6. Neurons made from stem cells drive brain activity after transplantation in laboratory model
7. Stress-resilience/susceptibility traced to neurons in reward circuit
8. Neuronal activity induces tau release from healthy neurons
9. Age-related dementia may begin with neurons inability to dispose of unwanted proteins
10. Vitamin P as a potential approach for the treatment of damaged motor neurons
11. Serotonin mediates exercise-induced generation of new neurons
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cc to the brain: How neurons control fine motor behavior of the arm
(Date:12/10/2014)... RALEIGH, N.C. , Dec. 9, 2014  Valencell, ... announced it is seeing a staggering demand from its ... demand, the Company revealed, is not solely coming from ... industries as well. "A wearable is only ... a result, accuracy is the ultimate driver in long-term ...
(Date:12/10/2014)... , Dec. 08, 2014 Research and Markets ... addition of the "Biometrics Market in Japan ... http://photos.prnewswire.com/prnh/20130307/600769 The ... such as rural banking and upgradation of the ... witnessed in the market. Besides the aforementioned projects, ...
(Date:12/5/2014)... -- Tute Genomics, a leader in cloud-based solutions for genome ... led by UK-based Eurovestech. Peak Ventures and a number ... "We are at a pivotal time in ... seeks new approaches for the diagnosis, treatment and prevention ... and CEO of Tute Genomics. "One of the main ...
Breaking Biology News(10 mins):Wearable Technology Products Demand Highly Accurate Biometric Technology 2Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 2Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 3
... for Microbiology (ASM) Promega Biotechnology Research Award will ... Emeritus of Medicine and Genome Sciences, University of ... by Promega Corporation, this award honors outstanding contributions ... research and development. Olson realized the ...
... This release is available in French . ... with the flu. A ground-breaking study published in the March 2010 ... 59 per cent of study subjects had too little Vitamin D ... serious deficiencies (less than 20 ng/ml) of this important vitamin. Since ...
... University scientists and practitioners is riding herd on one ... cattle industry: Bovine Respiratory Disease. BRD is the ... States, accounting for approximately 75 percent of feedlot morbidity ... deaths. BRD causes between $800 million to $900 million ...
Cached Biology News:American Society for Microbiology honors Maynard V. Olson 2Low levels of vitamin D linked to muscle fat, decreased strength in young people 2Bovine respiratory disease 2
(Date:12/19/2014)... PLEASANTON, Calif. , Dec. 19, 2014  Roche ... acquisition of Bina Technologies, Inc. (Bina), a privately ... California , USA. Bina provides a big ... next generation sequencing (NGS) data. Bina,s proprietary on-market ... translational and academic researchers to perform fast and ...
(Date:12/19/2014)... FL (PRWEB) December 18, 2014 ... the nation’s leading specialty pharmacies, has an expanded ... as clinical pharmacy consultants for prescriber offices in ... expertise. , “We have a variety of ... For example, those specializing in hepatitis C help ...
(Date:12/19/2014)... Reports from CDC show ... from one or more chronic health conditions - including ... address some of these diseases, but may not eliminate ... face. While implanted nerve stimulation devices today offer relief, ... which can induce side effects. , To eliminate ...
(Date:12/19/2014)... With only 2 weeks left of 2014, ... Biohit products . The product specials include Buy 1 ... Trade-in Program, and free pipette tips. , Sartorius mLINE ... world. They are ideal for lab technicians performing long ... ,     Full volume range of 0.1 uL to 10 ...
Breaking Biology Technology:Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 2BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 3Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2
... a novel method for etching extremely narrow lines on a ... to opaque, and vice versa, just by exposing it to ... but the researchers found a novel way of harnessing that ... transparency. This mask can then be used to create a ...
... of EpilepsyBRANFORD, Conn., April 10 Marinus Pharmaceuticals, Inc., ... psychiatric disorders, today announced the close of a $20 ... heels of the Company,s recent announcement of positive Phase ... adults with partial onset seizures. The Series B financing ...
... State University researchers have developed a new strategy to ... challenge in physics. , What they,ve discovered could eventually ... new high-tech materials. , In 2008, the Defense Advanced ... tackle an ambitious problem: trap atoms inside a light ...
Cached Biology Technology:MIT: New method could lead to narrower chip patterns 2Marinus Pharmaceuticals Raises $20 Million in Series B Financing 2Marinus Pharmaceuticals Raises $20 Million in Series B Financing 3Marinus Pharmaceuticals Raises $20 Million in Series B Financing 4Marinus Pharmaceuticals Raises $20 Million in Series B Financing 5Physicists discover important step for making light crystals 2Physicists discover important step for making light crystals 3
... LAS-3000 imaging system combines new CCD ... interface, providing significantly improved system sensitivity ... The system is especially dedicated to ... system for Western blotting applications.,Fuiji's LAS-3000 ...
This kit is designed to select cells labeled with biotinylated antibodies. Kit includes reagents for labeling 3 x 10 9 cells and EasySep magnet....
... Life Science LAS-3000mini is a compact ... chemiluminescence applications, and the perfect standard ... 's LAS-3000 provides significantly improved system ... Glowell calibration standards validate that Fujis ...
... FLIM system combines the space and time dimensions ... of the optical microscope to open new horizons ... light source for excitation, the decay of a ... of the decay measured. Subtle changes in ...
Biology Products: