News tagged with electrical impulses

Related topics: heart , brain , nerve cells , neurons




Australians implant 'world first' bionic eye

Australian scientists said Thursday they had successfully implanted a "world first" bionic eye prototype, describing it as a major breakthrough for the visually impaired.

Ophthalmology created Aug 30, 2012 | popularity 5 / 5 (9) | comments 0

Study indicates reverse impulses clear useless information, prime brain for learning

(Medical Xpress)—When the mind is at rest, the electrical signals by which brain cells communicate appear to travel in reverse, wiping out unimportant information in the process, but sensitizing the cells ...

Neuroscience created Mar 19, 2013 | popularity 4.9 / 5 (9) | comments 2 | with audio podcast

Hold that thought? Scientists find sensor that may explain working memory

(Medical Xpress) -- In many cases, a delay occurs between the time you are presented information and the time you respond with an action or decision. Most of us call it a thought, while some scientists call it working memory.

Neuroscience created Dec 21, 2011 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast

Scientists map the frontiers of vision

There's a 3-D world in our brains. It's a landscape that mimics the outside world, where the objects we see exist as collections of neural circuits and electrical impulses.

Neuroscience created Jan 06, 2012 | popularity 4.6 / 5 (7) | comments 0 | with audio podcast

Simple mathematical pattern describes shape of neuron 'jungle'

Neurons come in an astounding assortment of shapes and sizes, forming a thick inter-connected jungle of cells. Now, UCL neuroscientists have found that there is a simple pattern that describes the tree-like shape of all neurons.

Neuroscience created Jun 20, 2012 | popularity 4.6 / 5 (7) | comments 2 | with audio podcast

Learning requires rhythmical activity of neurons

The hippocampus represents an important brain structure for learning. Scientists at the Max Planck Institute of Psychiatry in Munich discovered how it filters electrical neuronal signals through an input ...

Neuroscience created Sep 26, 2012 | popularity 5 / 5 (6) | comments 2 | with audio podcast

A better brain implant: Slim electrode cozies up to single neurons

(Medical Xpress)—A thin, flexible electrode developed at the University of Michigan is 10 times smaller than the nearest competition and could make long-term measurements of neural activity practical at ...

Neuroscience created Nov 11, 2012 | popularity 4.8 / 5 (6) | comments 0 | with audio podcast

3 p.m. slump? Why a sugar rush may not be the answer

(Medical Xpress) -- A new study has found that protein and not sugar activates the cells responsible for keeping us awake and burning calories. The research, published in the 17 November issue of the scientific ...

Neuroscience created Nov 16, 2011 | popularity 4.3 / 5 (6) | comments 2 | with audio podcast

Neurons derived from cord blood cells may represent new therapeutic option

For more than 20 years, doctors have been using cells from blood that remains in the placenta and umbilical cord after childbirth to treat a variety of illnesses, from cancer and immune disorders to blood ...

Medical research created Jul 16, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Scientists identify molecules in the ear that convert sound into brain signals

For scientists who study the genetics of hearing and deafness, finding the exact genetic machinery in the inner ear that responds to sound waves and converts them into electrical impulses, the language of ...

Medical research created Dec 06, 2012 | popularity 5 / 5 (5) | comments 5 | with audio podcast

Ordinary heart cells become 'biological pacemakers' with injection of a single gene

Cedars-Sinai Heart Institute researchers have reprogrammed ordinary heart cells to become exact replicas of highly specialized pacemaker cells by injecting a single gene (Tbx18)–a major step forward in the decade-long search ...

Medical research created Dec 16, 2012 | popularity 5 / 5 (5) | comments 1 | with audio podcast

Protecting the brain when energy runs low

Researchers from the Universities of Leeds, Edinburgh and Dundee have shed new light on the way that the brain protects itself from harm when 'running on empty.'

Neuroscience created Oct 17, 2011 | popularity 4 / 5 (6) | comments 1 | with audio podcast

Researchers identify how cells control calcium influx

(Medical Xpress)—When brain cells are overwhelmed by an influx of too many calcium molecules, they shut down the channels through which these molecules enter the cells. Until now, the "stop" signal mechanism that cells ...

Neuroscience created May 09, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Virtual heart sheds new light on heart defect

(Medical Xpress)—A virtual heart, developed at The University of Manchester, is revealing new information about one of the world's most common heart conditions.

Cardiology created Jan 15, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

New therapy uses electricity to cancel out Parkinson tremors

A new therapy could help suppress tremors in people with Parkinson's disease, an Oxford University study suggests.

Parkinson's & Movement disorders created Feb 18, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast