Navigation Links
Smart neurons: Single neuronal dendrites can perform computations

When you look at the hands of a clock or the streets on a map, your brain is effortlessly performing computations that tell you about the orientation of these objects. New research by UCL scientists has shown that these computations can be carried out by the microscopic branches of neurons known as dendrites, which are the receiving elements of neurons.

The study, published today (Sunday) in Nature and carried out by researchers based at the Wolfson Institute for Biomedical Research at UCL, the MRC Laboratory for Molecular Biology in Cambridge and the University of North Carolina at Chapel Hill, examined neurons in areas of the mouse brain which are responsible for processing visual input from the eyes. The scientists achieved an important breakthrough: they succeeded in making incredibly challenging electrical and optical recordings directly from the tiny dendrites of neurons in the intact brain while the brain was processing visual information.

These recordings revealed that visual stimulation produces specific electrical signals in the dendrites bursts of spikes which are tuned to the properties of the visual stimulus.

The results challenge the widely held view that this kind of computation is achieved only by large numbers of neurons working together, and demonstrate how the basic components of the brain are exceptionally powerful computing devices in their own right.

Senior author Professor Michael Hausser commented: "This work shows that dendrites, long thought to simply 'funnel' incoming signals towards the soma, instead play a key role in sorting and interpreting the enormous barrage of inputs received by the neuron. Dendrites thus act as miniature computing devices for detecting and amplifying specific types of input.

"This new property of dendrites adds an important new element to the "toolkit" for computation in the brain. This kind of dendritic processing is likely to be widespread across many brain areas and indeed many different animal species, including humans."


Contact: David Weston
University College London

Related medicine news :

1. SMART heart eases heart ache, targets cardiac patients emotional well-being
2. Anxiety Linked to Smarts in Brain Study
3. Well-connected brains make you smarter in older age
4. Infant Smarts Similar With Different Types of Formula: Study
5. The Attilio Group’s TAG™-Simply Faster Taps SmartSales To Accelerate Its Expansion Into National Reach
6. Lauren Sciences LLCs research team at Ben-Gurion University awarded Campbell Foundation grant to develop a V-Smart therapeutic for neuro-HIV
7. Dads Smarts May Mean More to His Sons Success Than His Money
8. Engineering the smart health care of the future
9. Engineers improve blood testing technology with smartphone app, hand-held biosensor
10. Sport makes middle-aged people smarter
11. Smartphones Linked to Sexual Activity in Teens: Study
Post Your Comments:
Related Image:
Smart neurons: Single neuronal dendrites can perform computations
(Date:11/30/2015)... , ... November 30, 2015 , ... The world of ... harvesting and follicular unit extraction. These techniques and procedures have been in use for ... from hair loss. While Dr. Parsa Mohebi, M.D. has utilized many of these methods ...
(Date:11/30/2015)... Battle Creek, Michigan (PRWEB) , ... November 30, 2015 , ... ... Creek, MI, the American Cancer Society held an annual fundraising event, a 5K walk ... Recovery, a holistic treatment center for substance abuse which is also located in Battle ...
(Date:11/30/2015)... ... November 30, 2015 , ... The presidential race normally deals with political issues ... it a national news story when Donald Trump makes disparaging remarks about Hillary Clinton’s ... more than anyone wants to admit when it comes to how people are viewed ...
(Date:11/30/2015)... Angeles, CA (PRWEB) , ... November 30, 2015 , ... ... star Jessie James Decker made a brave but slightly unusual choice to show her ... returning to her pre-pregnancy form may have been pre-mature. Saying that she didn’t “want ...
(Date:11/30/2015)... ... ... According to Los Angeles bariatric surgeon Michael Feiz, M.D., F.A.C.S., many of ... hunger, but instead by a hormone called ghrelin which (often prematurely) signals to ... aware that weight loss surgery can help patients lose weight by restricting the capacity ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... Asia,s largest exhibition and conference dedicated to the Medical Device ... 22 nd April 2016. --> --> ... --> -->   --> --> ... population and the government back up, the Medical Device is one of the ... . With the aging population and the government back up, the Medical ...
(Date:11/30/2015)... REDWOOD CITY, Calif. , Nov. 30, 2015 ... company that is providing innovative evidence-based solutions for the treatment ... Appeals Board (PTAB) at the U.S. Patent and Trademark Office ... (IPR) of U.S. Patent No. 8,359,102 (the ,102 patent).  ... 14, 2015, a unit of Boston Scientific Corporation filed two ...
(Date:11/30/2015)... ) has ... Market 2015-2019" report to their offering. ... of the "Orphan Drugs Market 2015-2019" ... and Markets ( ) has announced the ... report to their offering. ...
Breaking Medicine Technology: