Sentences with phrase «by electrodes»

The technique measures the resistance to a small current generated by electrodes on the scalp to gauge electrical activity in the brain.

The disasters looked calm during the interviews, but their physiology, measured by the electrodes, told a different story.

60 healthy subjects participating in the study received a low intensity current administered by electrodes to the frontal part of the brain through the scalp.

They focused on the so - called N400, a distinct pattern of electrical brain activity that can be measured by electrodes placed on the scalp.

The neural signals recorded by the electrodes are transmitted via a cable to a computer where algorithms developed in Shenoy's lab decode the participant's intentions and translate the signals into movements of a computer cursor.

In this nitric oxide (NO) generator, which can be incorporated into a mechanical ventilator or anesthesia machine, air is taken in through the inlet on the left and passes by the electrode at the top of the vertical segment, where a series of sparks generates NO gas.

Tennis balls impregnated with 5 grams of iron powder are detected by electrodes buried beneath the lines of the court.

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.

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.

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.

The electrical signals in the muscles are sensed by electrodes on the skin.

Both of the painful procedures, but not the other stimuli, elicited an identically large response, detectable by an electrode placed at the top of the head approximately half a second later.

One experimental group received only cognitive training; the second group received cognitive training and exercise; and the third group received cognitive training, exercise and noninvasive brain stimulation delivered by electrodes on the scalp.

In the meantime, the researchers followed the subjects» brain activity measured by electrodes glued to the scalp.

Although the results achieved by the electrode are clear cut, Nocera is as yet unsure of the exact chemical mechanism.

But not all the sunlight would be absorbed by this electrode: light with a wavelength longer than 600 nanometres isn't absorbed by the rust - coloured water in the top cell so would pass through to strike the lower electrode, powering the production of hydrogen.

But that the EEG signals, electro - encephalography by electrodes placed on the skull, show different signals, was not demonstrated yet.

They did it by penning the plasma in with magnetic fields generated by electrodes and magnets at each end of the long tube.

As the voltage of the signal is scanned over them, the dots represented by each electrode would change colour.

LEDs contain thin layers of semiconducting materials bounded by electrodes.

A univariate analysis made it possible to see which region of the brain was solicited during the task, electrode by electrode, contact by contact.

Researchers surgically redirect nerves that would normally control the arm into unused chest muscle, where nerve signals are interpreted by electrodes that guide the robotic limb.

In 2008, Andrew Schwartz of the University of Pittsburgh in Pennsylvania published a landmark paper describing how two rhesus macaques learned to feed themselves marshmallows and fruit using a crude robotic limb controlled by electrodes implanted in their brains (Nature, DOI: 10.1038 / nature06996).

«Another possibility is to use these bacteria as miniature factories on the surface of an electrode, where chemicals reactions take place inside the cell using electrical power supplied by the electrode through these proteins.»

At the same time, the dark particle should also jar loose some electrons from the germanium atoms, triggering an electric charge that will be recorded by an electrode.

Using a new type of optical imaging, Harvard Medical School researchers observed neurons as they were stimulated by an electrode.

Previously, users had to fully concentrate on one of three commands — turn left, turn right, or do nothing — creating specific brain wave patterns detected by an electrode - studded cap.

They found that the activity picked up by the electrodes at the two «hot spots» tracked with peak activity at these sites, as measured by fMRI.

Electric signals in the muscles are picked up by electrodes on the skin.

They were the amplified sounds of brain cells firing, picked up by the electrode and piped through a nearby speaker.

Probands were asked to perform a movement after a signal; the time it took for the muscles to respond was recorded by electrodes.