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:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... NXT-ID, Inc. (NASDAQ:   NXTD ) ("NXT-ID" or ... independent Directors Mr. Robin D. Richards and Mr. ... the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive Officer said," ... and benefiting from their considerable expertise as we move forward ...
(Date:4/5/2017)... , April 5, 2017 Today HYPR ... that the server component of the HYPR platform is ... providing the end-to-end security architecture that empowers biometric authentication ... HYPR has already secured over 15 million users across ... manufacturers of connected home product suites and physical access ...
(Date:4/3/2017)... , April 3, 2017  Data ... precision engineering platform, detected a statistically significant ... product prior to treatment and objective response ... the potential to predict whether cancer patients ... to treatment, as well as to improve ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... At its national board meeting ... I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space ... membership in ARCS Alumni Hall of Fame . ASTER Labs is a ...
(Date:10/11/2017)... -- VMS BioMarketing, a leading provider of patient support solutions, has ... (CNE) network, which will launch this week. The VMS CNEs ... professionals to enhance the patient care experience by delivering peer-to-peer ... care professionals to help women who have been diagnosed and ... ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking events company, ... today. The bold new look is part of a transformation to increase awareness, ... significant growth period. , It will also expand its service offering from its signature ...
(Date:10/10/2017)... CRUZ, Calif. , Oct. 10, 2017 ... grant from the NIH to develop RealSeq®-SC (Single Cell), ... kit for profiling small RNAs (including microRNAs) from single ... Analysis Program highlights the need to accelerate development of ... "New techniques for measuring ...
Breaking Biology Technology:
Cached News: