HOME >> BIOLOGY >> NEWS
More than aiding balance, vestibular organs provide an on-line movement guidance system

Anyone who's had to find his or her way through a darkened room can appreciate that nonvisual cues play a large role in our sense of movement. What might be less apparent is that not all such cues come from our remaining four senses.

In a finding that broadens our understanding of human movement control, researchers at the Institute of Neurology in London have shown that the inner-ear vestibular organs provide what is essentially an on-line movement guidance system for maintaining the accuracy of whole-body movements.

The vestibular organs are commonly thought of as sensors that serve balance, the control of visual gaze, and higher spatial functions, such as navigation. However, because these organs respond to head movements, such as accelerations, they also have the potential to signal the accuracy of any voluntary movement that causes the head to move in space. The brain may then use that information for movement control in the same way that it uses sensory feedback information from the eyes, muscles, and skin to assess and adjust a limb movement as it is being executed.

In the new work, appearing in the August 9 issue of Current Biology, Brian Day and Raymond Reynolds of University College London show that the brain uses signals from the vestibular organs to make on-line adjustments to whole-body voluntary movements. The researchers were able to show this by precisely stimulating the vestibular sensory nerves through the skin while volunteers performed a simple upper-body movement. The researchers found that the stimulus altered the normal vestibular response to the upper-body movement and automatically caused the subjects to adjust their movement speed--and did so in a predictable way that depended on how the vestibular sensory nerves were stimulated. As one might expect when perturbing the guidance system, the effect of the nerve stimulation was only apparent in connection with body movement; the same stimulus had almost no effect when
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
8-Aug-2005


Page: 1 2

Related biology news :

1. New nanotechnology able to examine single molecules, aiding in determining gene expression
2. Fish species plays surprise role in aiding coral reef recovery
3. A year on from the Asian tsunami, satellites are aiding regional rebuilding
4. UCI researchers identify trigger for onset of Alzheimers, aiding search for new therapies
5. Scientists explore how complex organs develop from a simple bud
6. Study finds how organs monitor themselves during early development
7. Researchers discover which organs in Antarctic fish produce antifreeze
8. Vital organs in the Earth system: What is the prognosis?
9. New antifreeze protein found in fleas may allow longer storage of transplant organs
10. Protein linked to growth of organs and cancer
11. Discoveries by UAB and Florida scientists may help transplanted organs survive longer

Post Your Comments:
(Date:10/30/2014)... 2014 Biological membranes are mainly composed of lipid ... solution ions onto lipid membranes helps clarify functional ... provides a quantitative description of the equilibria between ... and Zbigniew Figaszewski from the University of Bialystok, ... these findings, just published in EPJ E ...
(Date:10/29/2014)... to date, researchers have used DNA sequencing to uncover ... Joseph Buxbaum, Ph.D., Icahn School of Medicine at Mount ... of Harvard and MIT, and their colleagues examined more ... unrelated people. They identified changes in 107 genes that ... spectrum disorder (ASD) – a jump from the nine ...
(Date:10/29/2014)... to make their food, but they also need protection from ... a group of molecules in plants that shields them from ... of the American Chemical Society , one team reports on ... Timothy Zwier and colleagues at Purdue University note that the ... serious damage to plant DNA and, as a result, hinder ...
Breaking Biology News(10 mins):Ion adsorption matter in biology 2
(Date:10/27/2014)... 27, 2014 New Q4-2014 incentives ... , an industry leading unified communication and collaboration ... agents to deliver cloud-based audio and web/video conferencing ... , With SoundConnect’s Q4 incentive partners ... and/or web conferencing licenses sold, now through December ...
(Date:10/27/2014)... EASTON, Mass. , Oct. 27, 2014 /PRNewswire/ ... the "Company"), a worldwide leader in the development ... to the life sciences research market, today announced ... team presented a novel, accurate, highly reproducible, and ... time – routine high-throughput protein analysis on small ...
(Date:10/26/2014)... The report "Data Center Networking ... Equipment, WAN Optimization Appliances]: Global Advancements, Worldwide Forecasts ... center networking market into various segments with an ... also identifies the factors driving this market, various ... with the future roadmaps. , Browse 106 market ...
(Date:10/25/2014)... October 23, 2014 ViaDerma, ... pharmaceutical company devoted to bringing new products to ... 2015. , ViaDerma has developed an innovative, patent-pending ... rapid mass transfer of pharmaceutical active ingredients to ... provide immediate localized therapy. The transdermal delivery method ...
Breaking Biology Technology:SoundConnect Unveils Q4 Partner Incentives 2Breakthrough Method to Permit Quantification of Thousands of Proteins in Needle Biopsy Samples in 12 hours Presented at Major International Scientific Meeting; Method Enabled by Pressure BioSciences' PCT Sample Preparation Platform 2Breakthrough Method to Permit Quantification of Thousands of Proteins in Needle Biopsy Samples in 12 hours Presented at Major International Scientific Meeting; Method Enabled by Pressure BioSciences' PCT Sample Preparation Platform 3Breakthrough Method to Permit Quantification of Thousands of Proteins in Needle Biopsy Samples in 12 hours Presented at Major International Scientific Meeting; Method Enabled by Pressure BioSciences' PCT Sample Preparation Platform 4Breakthrough Method to Permit Quantification of Thousands of Proteins in Needle Biopsy Samples in 12 hours Presented at Major International Scientific Meeting; Method Enabled by Pressure BioSciences' PCT Sample Preparation Platform 5Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 2Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 3Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 4ViaDerma, Inc. Announces Plans to Pursue Out-Licensing Partnerships in 2015 2ViaDerma, Inc. Announces Plans to Pursue Out-Licensing Partnerships in 2015 3
Cached News: