Sentences with phrase «about brain neurons»

«This study differs from what's been reported previously about brain neurons that control the gastrointestinal tract,» said R. Alberto Travagli, professor, Department of Neural and Behavioral Sciences, and lead investigator.

Not exact matches

Having studied experimental psychology as an undergraduate at Cambridge, Hinton was enthusiastic about neural nets, which were software constructs that took their inspiration from the way networks of neurons in the brain were thought to work.

«There are about 100 billion neurons in a human brain, which is about the same as the number of stars in the Milky Way galaxy.»

By collecting sequencing information about cells in the gut, for example, Kallyope can better figure out how they're connected to neurons in the brain in a series of circuits.

A study conducted by researchers at the University of London has revealed some interesting information about neurons in the male brain.

There is no god, see my previous post about the brain, neurons, etc for a full and complete explanation of god and spirituality.

These sensory neurons release substance P, a neuropeptide chemical messenger that tells the brain about pain...

These sensory neurons release substance P, a neuropeptide chemical messenger that tells the brain about pain or skin inflammation.

In these last few weeks before delivery, the billions of developed neurons in your baby's brain are helping him or her to learn about the in - utero environment — your baby can listen, feel, and even see somewhat.

However, little is known about how neurons in this brain region function as gatekeepers.

So Miguel Nicolelis at Duke University in Durham, North Carolina, and his colleagues recorded the electrical activity in almost 500 neurons in the somatosensory and motor cortex of a monkey's brain while it thought about using both its forelimbs.

«What's really exciting about this was that the activity differences were detected at a critical time in brain development: when neural progenitor cells are proliferating and expanding in number, just prior to producing neurons,» Silver said.

Many of Markram's colleagues think that he is too ambitious, that a model of billions of neurons, no matter how intricate, can not tell much about the functions of a real brain.

So far, researchers with the Allen Institute for Brain Science in Seattle have described the intricate shapes and electrical properties of about 100 nerve cells, or neurons, taken from the brains of 36 patients as they underwent surgery for conditions such as brain tumors or epilBrain Science in Seattle have described the intricate shapes and electrical properties of about 100 nerve cells, or neurons, taken from the brains of 36 patients as they underwent surgery for conditions such as brain tumors or epilbrain tumors or epilepsy.

By claiming that he could pry information from the brain without drilling deep inside it — information that could allow a subject to move a computer cursor, play computer games, and even move a prosthetic limb — Schalk was taking on «a very strong existing dogma in the field that the only way to know about how the brain works is by recording individual neurons,» Schmeisser vividly recalls of that day.

We know that in the human brain there are about one hundred billion neurons that communicate by means of electrical signals.

When the researchers tracked the stem cells in the mice's brains, they saw that only about 5 percent of them actually developed into neurons, suggesting the cells did not rescue memory by replacing dead neurons, LaFerla says.

Svendsen is more optimistic about his team's work involving human tests of a novel stem cell approach to treat ALS, a degenerative motor neuron disease in which cells that transmit messages from the brain and spinal cord to the muscles wither or die.

In 2002 ethnobotanist Paul Cox from the Institute for Ethnobotany at the National Tropical Botanical Garden in Kalaheo, Hawaii, and neurologist Oliver Sacks from the Albert Einstein College of Medicine in New York City introduced a shocking theory about how Chamorros might be ingesting enough BMAA to damage neurons in the brain and spinal cord.

Curiously, the researchers discovered that only about five percent of the stem cells injected into the brain - addled mice matured into adult neurons.

The human brain consists of about one billion neurons.

It comprises an estimated 500 million neurons — about five times as many as in the brain of a rat — and is around 9 metres long, stretching from your oesophagus to your anus.

Stanford University researchers studying how the brain controls movement in people with paralysis, related to their diagnosis of Lou Gehrig's disease, have found that groups of neurons work together, firing in complex rhythms to signal muscles about when and where to move.

Electrodes were implanted in the part of Idoya's brain that controls leg movement; these devices recorded the activity of 250 to 300 neurons that fired when her ankles, knees, hip joints, and feet moved or were about to move.

Previously, researchers had two theories about how neurons in the motor cortex might control movement: One was that these neurons fired in patterns that represent more abstract commands, such as «move your arm to the right,» and then neurons in different brain areas would translate those instructions to guide the muscle contractions that make the arm move; the other was that the motor cortex neurons would actually send directions to the arm muscles, telling them how to contract.

In an era of increasing excitement about mapping the brain's «connectome,» this finding fits with our growing understanding of complex brain functions as residing not in discrete brain regions, but in densely connected networks of neurons spread throughout different parts of the brain.

Vargas - Irwin used an analysis technique he developed, called SSIMS, that can accurately detect patterns of activity in collections of neurons without relying on any assumptions about what the brain is trying to do.

Comparing video footage of their stay with their brain activity (see video, above) revealed that the neurons remained virtually silent for most of the time, bursting into life only when the volunteers talked about numbers or numerical concepts such as «more than» or «less than».

«This technique measures the diffusion of water in the brain tissues, which can tell you a lot about the development of neurons and axons,» Monson said.

These insights about brain waves coincide with a shift in neuroscience away from a view that reduces the brain down to the behavior of single nerve cells, or neurons.

The brain harbors about 86 billion neurons, or nerve cells, that have to be born at the right time, migrate to the right place, and wire up in the right way if we are to survive and thrive.

The key finding of a research team based at Brown University is that neurons in the area of the brain responsible for planning grasping motions retain information about the object to be gripped as they make their movement plan.

A study published online Oct. 13 in the journal Current Biology describes how researchers used metal microelectrodes in a jumping spider's poppy - seed - sized brain to show that auditory neurons can sense far - field sounds, at distances up to 3 meters, or about 600 spider body lengths.

The visual neurons in the chick's brain are obviously not very fussy about the exact stimulus requirements.

The real human brain contains about 100 billion neurons, so scientists are getting close — in raw numbers, at least.

Even though the brain contains about a trillion glia — 10 times as many as there are neurons — the assumption was that those cells were nothing more than a passive support system.

A vital next question is how information about regret encoded by neurons in the OFC influences decision - making in the rest of the brain, Vaughan says.

You can remove someone's cerebellum — an ancient part of the brain that has about 50 billion neurons — and they may have motor problems and find it hard to walk around, but they will still be fundamentally the same person.

This is partly due to the fact that we still know relatively little about the rules that determine which neurons in the brain are connected to each other, and what information they exchange.

Each Purkinje cell receives messages from a climbing fiber, a type of neuron that extends from the brain stem and sends feedback about the associated muscles.

The human brain has approximately 100 billion neurons, and each, on average, connects to about 1,000 other neurons.

Kenyon cells make up only about 4 % of the entire fly brain and are extremely sensitive to inputs triggered by odors, in which only two connections between neurons, called synapses, separate them from the receptor cells at the «front end» of the olfactory system.

It'll be used to simulate the formation and inner workings of an entire mouse brain, which has about 70 million neurons.

A fetus starts to hear at about 24 weeks of gestation, as neurons migrate to — and form connections in — the auditory cortex, a brain region that processes sound, Stromswold explains.

However, the signals of individual brain cells can be noisy and imprecise — which means our brains can not rely solely on the activity of single neurons to make accurate decisions about our world.

Our body's master clock — a collection of about 50,000 neurons in the brain's suprachiasmatic nucleus — responds to external cues, such as light, and coordinates the cellular clocks in our organs and muscles.

These results indicated that, surprisingly, many brain regions surveyed contained separate but intermingled populations of neurons activated during fighting versus mating, with only a small degree (about 20 percent) of overlap.

But mapping a few neurons does not give Seung enough data to go after the really big questions about the brain.

Specifically, the team's findings suggest that neurons in two regions of the brain — the postrhinal association cortex and the lateral amygdala — help integrate information about external food cues and hunger state.

In both humans and rats, these neurons make up only about five percent of the neurons in the brain's central amygdala.