News tagged with neural circuit
Neurobiologists find that weak electrical fields in the brain help neurons fire together
The brain -- awake and sleeping -- is awash in electrical activity, and not just from the individual pings of single neurons communicating with each other. In fact, the brain is enveloped in countless overlapping ...
Medicine & Health / Neuroscience
Feb 02, 2011 |
4.9 / 5 (10) |
8
|
Smelling the light: 'What if we make the nose act like a retina?'
(PhysOrg.com) -- Harvard University neurobiologists have created mice that can "smell" light, providing a potent new tool that could help researchers better understand the neural basis of olfaction.
Medicine & Health / Neuroscience
Oct 17, 2010 |
4.7 / 5 (15) |
4
|
From eye to brain: Researchers map functional connections between retinal neurons at single-cell resolution
By comparing a clearly defined visual input with the electrical output of the retina, researchers at the Salk Institute for Biological Studies were able to trace for the first time the neuronal circuitry that ...
Medicine & Health / Medical research
Oct 06, 2010 |
4.9 / 5 (12) |
0
|
When do newborns first feel cold?
Cold sensing neural circuits in newborn mice take around two weeks to become fully active, according to a new study.
Medicine & Health / Neuroscience
Jun 17, 2010 |
3 / 5 (2) |
0
|
Alcohol withdrawal symptoms caused by molecules in the brain
(PhysOrg.com) -- Researchers in Britain have discovered the molecular basis of some of the symptoms of hangover and alcohol withdrawal that appear as the body attempts to adapt to reduced levels of alcohol.
Medicine & Health / Neuroscience
May 12, 2010 |
4.8 / 5 (5) |
0
|
Why humans believe that better things come to those who wait
New research reveals a brain circuit that seems to underlie the ability of humans to resist instant gratification and delay reward for months, or even years, in order to earn a better payoff. The study, published by Cell ...
Medicine & Health / Neuroscience
Apr 14, 2010 |
4 / 5 (7) |
2
|
Scientists discover a controller of brain circuitry
By combining a research technique that dates back 136 years with modern molecular genetics, a Johns Hopkins neuroscientist has been able to see how a mammal's brain shrewdly revisits and reuses the same molecular ...
Medicine & Health / Neuroscience
Dec 28, 2009 |
4.9 / 5 (20) |
4
Scientists develop DNA origami nanoscale breadboards for carbon nanotube circuits
In work that someday may lead to the development of novel types of nanoscale electronic devices, an interdisciplinary team of researchers at the California Institute of Technology has combined DNA's talent ...
Nanotechnology / Nanomaterials
Nov 10, 2009 |
5 / 5 (7) |
0
Nerve cells live double lives
(PhysOrg.com) -- Scientists at the Friedrich Miescher Institute for Biomedical Research (part of the Novartis Research Foundation) have identified a new neural circuit in the retina responsible for the detection ...
Medicine & Health / Neuroscience
Oct 06, 2009 |
4.6 / 5 (7) |
2
Scientists ID gene key to Alzheimer's-like reversal
(PhysOrg.com) -- A team led by researchers at MIT's Picower Institute for Learning and Memory has now pinpointed the exact gene responsible for a 2007 breakthrough in which mice with symptoms of Alzheimer's disease regained ...
May 06, 2009 |
4.9 / 5 (9) |
2
Research defines neurons that control sociability in worms
(PhysOrg.com) -- Ants colonize. Fish shoal. Flamingos flock and caribou herd. Earth is populated by inherently social beings. Even lowly worms seek out the benefits of companionship. New research at The Rockefeller ...
Medicine & Health / Neuroscience
Apr 10, 2009 |
4.3 / 5 (4) |
0
How You Feel the World Impacts How You See It
In the classic waterfall illusion, if you stare at the downward motion of a waterfall for some period of time, stationary objects -- like rocks -- appear to drift upward. MIT neuroscientists have found that ...
Medicine & Health / Neuroscience
Apr 03, 2009 |
4.9 / 5 (7) |
1
Involuntary maybe, but certainly not random
Our eyes are in constant motion. Even when we attempt to stare straight at a stationary target, our eyes jump and jiggle imperceptibly. Although these unconscious flicks, also known as microsaccades, had long ...
Medicine & Health / Medical research
Feb 12, 2009 |
4.8 / 5 (6) |
0
Vertebrates share ancient neural circuitry for complex social behaviors: study
Humans, fish and frogs share neural circuits responsible for a diversity of social behavior, from flashy mating displays to aggression and monogamy, that have existed for more than 450 million years, biologists at The University ...
May 31, 2012 |
not rated yet |
0
|
A post-coital switch: Mapping the changing behaviors in the female fruit fly's mind
If men are from Mars and women are from Venus, then it shouldn't be surprising that their neural circuits differ. In research published today in the journal Current Biology, researchers have used dramatic change ...
May 31, 2012 |
not rated yet |
0
|
Biological neural network
In neuroscience, a neural network describes a population of physically interconnected neurons or a group of disparate neurons whose inputs or signalling targets define a recognizable circuit. Communication between neurons often involves an electrochemical process. The interface through which they interact with surrounding neurons usually consists of several dendrites (input connections), which are connected via synapses to other neurons, and one axon (output connection). If the sum of the input signals surpasses a certain threshold, the neuron sends an action potential (AP) at the axon hillock and transmits this electrical signal along the axon.
In contrast, a neuronal circuit is a functional entity of interconnected neurons that influence each other (similar to a control loop in cybernetics).
For more information about Biological neural network, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
