Sentences with phrase «brain electrodes»

He says the new results represent only a minor advance, but Miller counters that the new system uses more brain electrodes than Moritz's — 100 rather than 12 — allowing better control.
Nicolelis says he's confident he has solved most of the technical problems once dogging brain electrodes, and he's mostly ignoring naysayers who think it can't be done.
He says the new results represent only a minor advance, but Miller counters that the new system uses more brain electrodes, allowing better control.
The scalp recordings let the scientists monitor the cortex, while the deep - brain electrodes let them monitor the thalamus.
Quiroga has begun testing this idea using improved techniques to extract more information from brain electrodes.
In a second surgical procedure less than a week after the brain surgery, Velly and his colleagues took readings from the deep - brain electrodes in 25 patients while also collecting electrode readings from their scalp.
The finding has already led to a better understanding of how to deploy deep - brain electrodes.
The firing of a single neuron is believed to be the basic unit of brain computation, and these studies are accomplished through the collaboration of neuroscientists and neurosurgeons, with the consent and participation of patients who undergo deep brain electrode placement for diagnostic or treatment procedures.

Not exact matches

Scientists at the University of Wisconsin and UCLA conducted the study, which implanted electrodes deep into the craniums of epilepsy patients to monitor their brain activity during seizures.
The gold - polyurethane material could someday be used in the form of implantable electrodes in the brain for treating movement disorders or in the heart to help regulate cardiac activity.
He suggested that humanity could either plug electrodes into our brains and upload them to computers, or have a deeper relationship with existing technology.
The device, developed by Dong Song, a professor of biomedical engineering at the University of Southern California, consists of electrodes implanted directly in the brain.
If one then asks the machine to make us happy, the computer might then simply implant electrodes into the pleasure centers of our brains.
Halo Sport uses electrodes to stimulate the brain's motor cortex, which controls planning and voluntary movements.
Can you design an experiment to actually confirm that you are not just a brain hooked up to electrodes by a mad scientiest who is stimulating your brain to make you believe you exist?
MILLIONS TO BE ASSASSINATED FOR THE SAKE OF $ $ $ LIABILITIES (mk - ultra, chip or electrode brain implants, electroshocks etc. performed on them) AND NEW WORLD ORDER (financial liabilities are 2 expensive for the government and it is cheaper to get read of you)!!!
I do not mean to suggest that one group of brain cells mapped out by researchers and excited by electrodes will produce visions of God.
He might even put some electrodes to my brain and register electrical impulses, say in some part of the cortex.
The only thing that would help Mitt would be an electrode in his brain that would shock him when he's about to say something stupid, or a complete lie.
Then pulses of electric current are passed through her brain via electrodes positioned on her head.
Electrodes connected to the babies» heads indicated a response in their brains that showed their expectation of what the rhythm would do next had been contradicted.
They continuously recorded the lizards» brain activity with electrodes over several weeks.
Inserting electrodes into the brains of two macaques, Tsao worked out which aspects of a face were mapped onto each neuron.
Suthana and her colleagues worked with 25 people with epilepsy who had electrodes already implanted in the brain for controlling seizures.
In contrast to invasive approaches using electrodes, Daniel Huber's team specializes in optical techniques for imaging and stimulating brain activity.
BOSTON — Conflicting results on whether brain stimulation helps or hinders memory may be explained by the electrodes» precise location: whether they're tickling white matter or gray matter.
Costa and Jin implanted tiny electrodes in each mouse's brain to record the activity of neurons within the striatum, a structure deep in the brain known to be involved in motor commands.
«The moment I first dropped an electrode into a slice of brain and heard all these neurons firing away like a thunderstorm, I was hooked,» Miller recalls.
Then, Feng recognized a novel opportunity to directly measure whether tDCS generates EFs in deep brain areas among patients with movement disorders such as Parkinson's disease, who are often treated by implanting DBS electrodes.
A noninvasive technique for brain stimulation, tDCS is applied using two small electrodes placed on the scalp, delivering short bursts of extremely low - intensity electrical currents.
These were subsequently fed into a part of the paw of an anesthetized rat, and then, with the help of electrodes in the brain and advanced analytical techniques, the researchers were able to measure the reactions in the neuronal networks.
The device is an improved version of a clinical tool called an electrode grid, which is a plastic or silicone - based grid of electrodes that is placed directly on the surface of the brain during surgery to monitor the activity of large groups of neurons.
They also had electrodes placed on their scalp to measure electrical activity in their brain.
With a large number of electrode channels distributed across the scalp, this method also detects which brain regions show more slow - wave activity than others.
Many neuroscientists had long believed that the only way to extract data from the brain specific enough to control an external device was to penetrate the cortex and sink electrodes into the gray matter, where the electrodes could record the firing of individual neurons.
Then, the patient returns to connect the electrodes in their brain to a battery implanted in the chest wall.
Both electrode grids identified normal functioning areas of the brain versus where the seizures were happening.
Implanted electrodes that sit next to neurons have in the past detected these signals, which are thought to help the brain build maps of the environment.
At Duke University Medical Center in North Carolina, researchers have surgically implanted electrodes in the brains of monkeys and trained them to move robotic arms at MIT, hundreds of miles away, just by thinking.
To discover why some people can sleep through noise while others awake at the faintest disruption, Jeffrey Ellenbogen and colleagues at Harvard Medical School used electrodes to monitor the brain activity of 12 people while they slept in a pitch - black, soundproof room.
Like ECOG, EEG relies on brain signals picked up by an array of electrodes that are sensitive to the subtle voltage oscillations caused by the firing of groups of neurons.
Neurosurgeons use electrode grids to identify which areas of the brain are diseased in order to avoid damaging or removing healthy, functional tissue during operations.
And we demonstrate that they can capture neural activity from the human brain at least as well as conventional electrodes that are orders of magnitude larger,» Gilja said.
To answer these questions, a team of MUSC investigators led by stroke neurologist and physician - scientist Wayne Feng, M.D., MS, attempted something that has never before been tried — they directly measured tDCS - generated EFs in vivo using deep brain stimulation (DBS) electrodes that were already implanted in patients with Parkinson's disease.
The exact location of neural activity is far more difficult to discern via EEG than with many other, more invasive methods because the skull, scalp, and cerebral fluid surrounding the brain scatter its electric signals before they reach the electrodes.
Peter Brown at University College London used electrodes to generate a small electrical current in the brains of 14 healthy volunteers.
Electrical signals between neurons generate electric fields that radiate out of brain tissue as electrical waves that can be picked up by electrodes touching a person's scalp.
Intricate, three - dimensional hand motions have been «read» from the brain using nothing but scalp electrodes.
It is done using electrodes placed in the brain, which recognise specific patterns of electric activity that occur when a person thinks about moving.
In the first, the team outfitted 17 8 - month - old babies with EEG caps, headwear covered with electrodes that measure the collective behavior of nerve cells across the brain.
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