News tagged with electrical impulses

Related topics: heart , brain , nerve cells , neurons




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

Using human brain cells to make mice smarter

Glial cells – a family of cells found in the human central nervous system and, until recently, considered mere "housekeepers" – now appear to be essential to the unique complexity of the human brain. Scientists reached ...

Medical research created Mar 07, 2013 | popularity 3.7 / 5 (3) | comments 2 | with audio podcast

Scientists learn more about how inhibitory brain cells get excited

Scientists have found an early step in how the brain's inhibitory cells get excited.

Neuroscience created Jan 30, 2013 | popularity 5 / 5 (2) | comments 0 | 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

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

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 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

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

Blocking protein expression delays onset of multiple sclerosis in mice, study says

(Medical Xpress)—Blocking the expression of just one protein in the brain delays the onset of paralysis in mice with a form of multiple sclerosis, say researchers at the School of Medicine.

Medical research created May 10, 2013 | popularity 5 / 5 (2) | comments 0 | 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

Turning Alzheimer's fuzzy signals into high definition

Scientists at the Virginia Tech Carilion Research Institute have discovered how the predominant class of Alzheimer's pharmaceuticals might sharpen the brain's performance.

Neuroscience created May 07, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

App lets amputees program their own bionic hands

Double-amputee Jason Koger used to fly to visit a clinician when he wanted to adjust the grips on his bionic hands. Now, he's got an app instead. Koger this week demonstrated the i-limb ultra revolution, ...

Other created May 03, 2013 | popularity not rated yet | comments 0

Mystery disease solved by gene experts

(Medical Xpress)—A global team of researchers has identified the gene behind an Australian toddler's paediatric brain disorder in a discovery that is paving the way for the diagnosis and treatment of other ...

Genetics created May 03, 2013 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Pinning down the pain: Schwann cell protein plays major role in neuropathic pain

An international team of scientists, led by researchers at the University of California, San Diego School of Medicine, says a key protein in Schwann cells performs a critical, perhaps overarching, role in ...

Neuroscience created Mar 27, 2013 | popularity 3 / 5 (1) | comments 0 | with audio podcast

Nerve regeneration research and therapy may get boost from new discovery

A new mechanism for guiding the growth of nerves that involves cell-death machinery has been found by scientists at the University of Nevada, Reno that may bring advances in neurological medicine and research. ...

Neuroscience created Mar 25, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast