Sentences with phrase «cells in the brain fire»

Immediately after a concussion, all the cells in the brain fire at once — a massive electrical discharge «like a miniseizure,» he says — indiscriminately releasing an excitatory neurotransmitter called glutamate, which in turn triggers brain cells to release potassium.

Not exact matches

We can compare the diverse tasks performed by a colony to the many proteins generated by gene transcription, to various cell types of a developing embryo, or to the firing patterns of neurons in the brain.

It is considered an inhibitory neurotransmitter, which means it regulates brain and nerve cell activity by inhibiting the number of neurons firing in the brain.

Whether you're in need of great gifts for Christmas or birthdays or just want to get some tot's brain cells firing, consider these ideas smart investments in your child's future.

In 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellIn 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellin the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cells.

Neurons that fire in response to horizontal and vertical movements had already been found in the retinas of mammals, but the only cells known to be sensitive to approaching objects were in the brain.

When both mice and people navigate, specialised «place» cells in the brain's hippocampus fire.

Rats have cells in their brains» entorhinal cortex that appear to generate an internal grid of triangles, and which fire as the animals navigate around a space.

Chemogenetics builds on optogenetics, which involves genetically engineering brain cells so that they fire in the presence of light.

A technique that involves genetically engineering brain cells so that they fire in the presence of certain drugs has been used to treat epilepsy in rats, and it could soon be tested in humans.

In contrast, the new method used on mice causes certain nerve cells to fire at a specific rhythm, generating brain waves that researchers believe may clear A-beta.

Now, researchers have discovered that the drug changes the firing patterns of cells in a pea - size structure hidden away in the center of the brain.

Christof Koch, a neuroscientist at Caltech, and Itzhak Fried, a neurosurgeon at the University of California at Los Angeles, revealed this spring that their research team had discovered individual brain cells that fire in response to particular people and places.

A light guide implanted in a mouse's brain lets researchers stimulate selected neuron sand then study the effect of cells firing out of sync.

The team asked the patients to categorize a variety of images as fast as possible while their electrodes recorded the firing of nearly 1,500 single brain cells across the group in real time.

Mirror neurons were discovered in the early 1990s, and their existence was a neuroscientific revelation: brain cells not only fire when we perform a given action, they also fire when we see someone else doing the deed.

The rats were distinctly less ticklish, and their brain activity showed a suppression of the cells that had fired so enthusiastically in the previous experiment, even when they were stimulated with the electrodes, he says.

The resting brain is actually pretty busy, with nerve cells firing nearly as often as they do in a waking state.

By shining pulses of light on the altered cells, scientists can switch them «on» or «off,» resulting in the same flow of ions that occurs when neurons fire naturally in the brain.

His reputation was cinched when Stephen Colbert, on Comedy Central's Colbert Report, asked Pinker to explain how the brain works in exactly five words, and he replied, «Brain cells fire in patterns.&rbrain works in exactly five words, and he replied, «Brain cells fire in patterns.&rBrain cells fire in patterns.»

There's a lot of attention right now on how neurons fire and interact with each other, but the truth is, we don't even understand how a brain develops — even in the most simple of organisms like C. elegans, a worm with only 300 brain cells.

A technique that involves genetically engineering brain cells so that they fire in the presence of certain drugs has been used to treat an epilepsy - like condition in rats, and it could soon be trialled in humans.

Now researchers report that by inserting ultra-fine electrodes into the brains of live mice, they have identified which neural cells in the accessory olfactory bulb fire when one mouse checks out another's pheromonal fingerprint.

Whereas place cells in a rat brain may change their firing rates if their environment is altered even a little — for example by changing the colour of the walls — those of grid cells remain robustly unchanged.

When exposed to something new, groups of brain cells in the perirhinal cortex fire quickly, at a rate of about 30 pulses per second, or hertz.

Shenoy's lab pioneered the algorithms used to decode the complex volleys of electrical signals fired by nerve cells in the motor cortex, the brain's command center for movement, and convert them in real time into actions ordinarily executed by spinal cord and muscles.

A new study of brain cells in this area finds that firing these neurons at one frequency makes the brain treat novel images as old hat.

When the researchers looked at activity at the cellular level in the rats» brains, they saw that individual cells stimulated by the optogenetics would increase firing rates in the PER network and that many cells fired in sync with the optical flicker frequency.

When looking at a face, brain cells in the amygdala fire electrical impulses or «spikes» in response.

When these photoreceptors detect light, they send a signal to specialized neurons in the retina called retinal ganglion cells, or RGCs, which then transmit visual information to the brain by firing electrical pulses along the optic nerve.

Neurons, or nerve cells, in the brain communicate with each other by transmitting electric signals, or firing action potentials, through long processes named axons (which send out signals) and dendrites (which receive signals).

This involves synaptic depression, where brain cells fire less in response to some signals.

Cells in the targeted brain regions fired when researchers asked subjects about their own views; they would also activate if such questions were followed by queries about the character with whom the volunteer most identified.

In the approximately 30 seconds between a rat's last heartbeat and the point when its brain stopped producing signals, the team carefully recorded its neuronal oscillations, or the frequency with which brain cells were firing their electrical signals.

Studies have shown that the NMDA receptor appears to operate in brain cells as a «coincidence detector»: It springs into action when two neurons fire at the same time, creating an association between them, and has therefore long been suspected to play a role in learning.

The firing of the anxiety cells sends messages to other parts of the brain that turn on anxious behaviors — in mice, those include avoiding the dangerous area or fleeing to a safe zone.

John O'Keefe discovered that certain cells in a region of the brain called the hippocampus preferentially fired, or were activated, when an animal was in a particular environmental location — the first description of «place cells».

That feeling may be traced to the firing of newly identified «anxiety» cells deep inside your brain, according to new research from neuroscientists at UC San Francisco and the Columbia University Irving Medical Center (CUIMC), published online Jan. 31, 2018, in Neuron.

These symptoms are the result of the loss of specialized cells in an area of the brain called the substantia nigra pars compacta (SNc) that specialize in producing the chemical signal - molecule dopamine and are responsible for turning off excess firing of neurons that control muscles.

To this end, she developed a system of wireless deep brain stimulation that harnesses the ability of a magnetic field to elicit the firing of brain cells in mice.

They also compared the CSF lipoproteins with those secreted by astrocytes, helper cells in the brain that nourish and support the firing nerve cells.

In the brain, billions of excitatory neurons act like green traffic lights, driving other cells to fire in complicated networks of activitIn the brain, billions of excitatory neurons act like green traffic lights, driving other cells to fire in complicated networks of activitin complicated networks of activity.

Li Gan, PhD, hopes to use the microscope to image firing cells in live brain slices, while Leor Weinberger, PhD, is interested in studying the processes by which a virus enters a cell in real time.

Those genes now make certain proteins in their brain cells when those neurons fire.

A lack of necessary dietary fats, especially saturated fats, can cause reduction in the myelin sheath that coat kids» brain cells, causing uncontrolled or rapid fire impulses in the brain, which presents as ADD or ADHD.

He feels that sleeping clears away the information signals that build up in our brain during the day as our nerve cells fire away and buildup messenger molecules that carry information.

More blood in the brain should also boost mental function by delivering the nutrients needed for neurons and cells to fire.

This electrical current stimulates the brain cells (neurons) in a targeted brain area and causes them to fire (or send an electrical impulse).

Interesting though is the increase in free radical damage from too much glutamate allowing too much calcium into brain cells, so neurons fire too rapidly, and die.

When cats are having a seizure, they tend to have focal onset beforehand (this is when the brain's cells are firing abnormally in one area or multiple areas of the brain).