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Thinking With The Spinal Cord?

Date:
January 24, 2007
Source:
University of Copenhagen
Summary:
Scientists from the University of Copenhagen have demonstrated that the spinal cord use network mechanisms similar to those used in the brain. The discovery is featured in the current issue of Science.

The researchers report that spinal neurons, during network activity underlying movements, show the similar irregular firing patterns as seen in the cerebral cortex.
Credit: Image courtesy of University of Copenhagen

Two scientists from the University of Copenhagen have demonstrated that the spinal cord use network mechanisms similar to those used in the brain. The discovery is featured in the current issue of Science.

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The research group behind the surprising results consists of Professor Jørn Hounsgaard and postdoc Rune W. Berg from the University of Copenhagen, and Assistant Professor and PhD Aidas Alaburda from the University of Vilnius. The group has shown that spinal neurons, during network activity underlying movements, show the similar irregular firing patterns as seen in the cerebral cortex.

New approach

"Our findings contradict conventional wisdom about spinal cord functions," says Rune W. Berg from Department of Neuroscience and Pharmacology at the Faculty of Health Sciences.

Until now, the general belief was that the spinal networks functioned mechanically and completely without random impulses. The new discovery enables researchers to use the theory on cortical networks to explore how spinal cords generate movements.

Still puzzled by movement

How humans are able to move at all remains a puzzle. Our muscles are controlled by thousands of nerve cells in the spinal cord. This entire, complex system must work as a whole in order to successfully create a single motion. The new research shows that even if we repeat a certain motion with high accuracy, the involved nerve cells never repeat their activity patterns. This particular observation reflects the organisation of the nerve cells of the cerebral cortex.


Story Source:

The above story is based on materials provided by University of Copenhagen. Note: Materials may be edited for content and length.


Cite This Page:

University of Copenhagen. "Thinking With The Spinal Cord?." ScienceDaily. ScienceDaily, 24 January 2007. <www.sciencedaily.com/releases/2007/01/070123143605.htm>.
University of Copenhagen. (2007, January 24). Thinking With The Spinal Cord?. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2007/01/070123143605.htm
University of Copenhagen. "Thinking With The Spinal Cord?." ScienceDaily. www.sciencedaily.com/releases/2007/01/070123143605.htm (accessed November 26, 2014).

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