Sentences with phrase «nerve cells firing»

Heavy sedation would have had the effect of stopping the nerve cells firing very rapidly and becoming damaged, which is one of the changes caused by nerve agents.

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

Changing the concentration also alters slightly which nerve cells fire a signal to the brain.

A team of researchers from the University of Chicago, Northwestern University, the University of Illinois at Chicago and the U.S. Department of Energy's (DOE's) Argonne National Laboratory have engineered silicon particles one - fiftieth the width of a human hair, which could lead to «biointerface» systems designed to make nerve cells fire and heart cells beat.

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.

Not exact matches

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.

Brain waves created by the coordinated firing of huge collections of nerve cells pinball around the brain.

Now scientists think they have cracked the code: Insect nerve cells appear to fire in a sequence unique to each smell, says a report in the 14 November issue of Nature.

Glial cells in the spine may activate when pain - related neurons are firing, dosing both limbs with inflammatory substances that may trigger an excitatory response but that may also be toxic to nerves.

Approximately one out of every 20 people in the course of his or her life suffers an epileptic attack, during which the nerve cells get out of their usual rhythm and fire in a very rapid frequency.

When Lin's team repeated their experiment with nerve cells, they found that stimulating the quantum dots caused ion channels to open and the nerve cell to fire.

There was another intriguing connection: Acinetobacter are molecular mimics of proteins found in myelin, the nerve cell coating that the immune system attacks in MS.. That suggests the bacteria might trigger immune attacks that hit myelin, too, as when soldiers who inadvertently resemble the enemy get hit by friendly fire.

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.

What is paradoxical is that the average firing activity of individual nerve cells does not differ that much in deep sleep and quiet wakefulness.

Now Janet Richmond, Robby Weimer and Erik Jorgensen have discovered that UNC - 13 primes syntaxinmuch like a crank opening a catapultto fire neurotransmitters into the gaps, or synapses, between nerve cells.

In Parkinson's disease, they are used to turn down the excessive firing of discrete clusters of nerve cells that control movement.

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.

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).

Scientists from Harvard University and the University of Aberdeen in Scotland say the reason is that nerve cells, which fire during self - evaluation, also swing into action when people are asked to predict how another person might feel — if, that is, they believe the person would act similarly to them.

On any given day, he's equally likely to be analyzing enormous datasets of firing nerve cells, developing a software program to help visualize data or organizing coding events for the neuroscience community.

The researchers found that for a frog brain cell to recognize a short sound, it is inhibited from firing a nerve signal while the sound is occurring, then is excited into firing when the sound ends.

The researchers administered drugs to block neurotransmitters common to humans, frogs and other animals: GABA - A, which is responsible mainly for inhibiting nerve cells from firing, and glutamate receptors (AMPA and NMDA), which are involved primarily in exciting neurons to fire.

However, a paucity of information exists on the steps between taste receptor cell activation and afferent nerve fiber firing.

The channel - like property could have evolved, says Edwards, to meet the important need of moving large amounts of glutamate quickly, for while the other neurotransmitters are involved in modulating behaviors, such as mood, and therefore don't need to act with millisecond speed, glutamate functions by rapid - fire communication between closely placed nerve cells, and could require the fast action of the channel mechanism.

A faulty conduit into nerve cells that causes them to fire uncontrollably appears to trigger the brief seizures present in some forms of absence, or petit mal, epilepsy, say investigators from the...

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

Many of the most promising approaches fall into four categories: the retinal prosthetic, gene therapy, stem cell treatments, and a technique that uses optogenetics, a way to engineer nerves to fire in response to bursts of light.

A rotation of the head in the plane of a given semicircular canal (i.e. around V) increases the firing rate of the vestibular nerve cells in that canal above a resting rate (in spikes · sec − 1), or decreases the firing rate (axis opposite to V).

Exposure to excessive dietary glutamate can cause nerve cells to fire UNTIL THEY DIE.

Without gamma - aminobutyric acid the nerve cells will fire too easily and too frequently.

While our idea of physical exercise entails the rhythmic contraction and relaxation of muscles, mental exercises require the more efficient firing of various nerve cells in the brain.

Likewise, conscious stimulation of effort to move legs from the brain causes the nerves of the spinal cord to fire, releasing the same chemicals that can stimulate the local stem cells to heal the damaged spinal cord.

This results in a chain reaction (a «storm») in which the surrounding nerve cells are stimulated to fire off a shower of signals of their own to various muscles of the body.