News tagged with neuronal circuit

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

created Oct 17, 2010 | popularity 4.7 / 5 (15) | comments 4 | with audio podcast

Neuroengineers silence brain cells with multiple colors of light

(PhysOrg.com) -- Neuroscientists at MIT have developed a powerful new class of tools to reversibly shut down brain activity using different colors of light. When targeted to specific neurons, these tools could ...

Medicine & Health / Neuroscience

created Jan 06, 2010 | popularity 4.5 / 5 (12) | comments 2 | with audio podcast

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

created Feb 02, 2011 | popularity 4.9 / 5 (10) | comments 8 | with audio podcast

Sleep helps build long-term memories

(PhysOrg.com) -- Experts have long suspected that part of the process of turning fleeting short-term memories into lasting long-term memories occurs during sleep. Now, researchers at the RIKEN-MIT Center for ...

Medicine & Health / Neuroscience

created Jun 24, 2009 | popularity 4.8 / 5 (9) | comments 1

Brain cells determine obesity -- not lack of willpower: study

An international study has discovered the reason why some people who eat a high-fat diet remain slim, yet others pile on the weight.

Medicine & Health / Medical research

created Sep 08, 2010 | popularity 3.9 / 5 (11) | comments 16 | with audio podcast

Web-crawling the brain

The brain is a black box. A complex circuitry of neurons fires information through channels, much like the inner workings of a computer chip. But while computer processors are regimented with the deft economy of an assembly ...

Medicine & Health / Neuroscience

created Mar 09, 2011 | popularity 4.4 / 5 (9) | comments 4 | with audio podcast

Japanese scientists aim to create robot-insects

Police release a swarm of robot-moths to sniff out a distant drug stash. Rescue robot-bees dodge through earthquake rubble to find survivors.

Technology / Hi Tech & Innovation

created Jul 14, 2009 | popularity 4.8 / 5 (8) | comments 0

Brain connections for stress -- lessons from the worm

Did you ever wonder how you are able to perform complex tasks - even under stress? And how do emotions and memories mould your ability to live your everyday lives? The answer is just beginning to be understood ...

Medicine & Health / Neuroscience

created Apr 18, 2010 | popularity 4.8 / 5 (8) | comments 0 | with audio podcast

Neurons work like a chain of dominos to control action sequences (w/ Video)

(PhysOrg.com) -- As anyone who as ever picked up a guitar or a tennis racket knows, precise timing is often an essential part of performing complex tasks. Now, by studying the brain circuits that control bird song, MIT researchers ...

Medicine & Health / Neuroscience

created Oct 24, 2010 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast

Illuminating the brain: Technique stimulates brain cells, reveals how those neurons influence the rest

There are about 100 billion neurons in the human brain, and each one belongs to elaborate networks that control our behavior, thoughts and emotions. A message from a single neuron can have far-reaching consequences ...

Medicine & Health / Neuroscience

created Jan 28, 2011 | popularity 4.6 / 5 (7) | comments 0 | with audio podcast

New model suggests how the brain might stay in balance

(PhysOrg.com) -- Physicists have theorized for decades about how neural networks might be able to accomplish the incredibly complex calculations the human brain performs all the time. But simply stabilizing ...

Other Sciences / Mathematics

created Sep 24, 2009 | popularity 3.9 / 5 (8) | comments 3

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

created Feb 12, 2009 | popularity 4.8 / 5 (6) | comments 0

This is your brain on fatty acids

Saturated fats have a deservedly bad reputation, but Johns Hopkins scientists have discovered that a sticky lipid occurring naturally at high levels in the brain may help us memorize grandma's recipe for cinnamon buns, as ...

Medicine & Health / Neuroscience

created Oct 30, 2009 | popularity 4.8 / 5 (6) | comments 1

Scientists show in unprecedented detail how cortical nerve cells form synapses with neighbors

Newly published research led by Professor Z. Josh Huang, Ph.D., of Cold Spring Harbor Laboratory (CSHL) sheds important new light on how neurons in the developing brain make connections with one another. This activity, called ...

Medicine & Health / Neuroscience

created Dec 21, 2010 | popularity 5 / 5 (5) | comments 1 | with audio podcast

Light instead of current: Activation of neurons with light by means of semiconductor photoelectrodes

(PhysOrg.com) -- Understanding the mechanisms by which the brain functions is one of the most complex challenges in science. One important aspect is the electrical conduction of stimuli in nerve cells. In order to study neuronal ...

Chemistry / Biochemistry

created Feb 20, 2009 | popularity 4.6 / 5 (5) | comments 0