Sentences with phrase «by electrodes placed»

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

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

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.

Not exact matches

It works by sending comfortable, gentle pulses to the nerves through four electrode pads placed on the skin.

Standard cochlear implants function by stimulating nerves using an electrode placed inside the cochlea, a tiny spiral cavity inside the ear.

By placing electrodes on top of the brain, they hope to avoid the problems associated with devices that use implanted probes, which may cause scarring and swelling.

«We demonstrated the high design variability in the packaging of our electrode device, and in vivo neuronal recordings were performed by simply placing the device on a mouse's brain.

Krupenkin's inspiration is a technique called electrowetting, in which a conductive liquid droplet, placed on an electrode, is physically deformed by an applied electric charge.

The team started by precisely placing arrays of 32 electrodes in four brain areas of the mice.

Using electrodes placed on the scalp and powered by a 9 - volt battery, a tDCS unit delivers weak constant current through the skull to the brain tissue below.

«Seizure activity can often be temporarily disrupted by the placing of electrodes during surgery,» Dr. Elisevich said.

Now that the biologists had identified one site — out of many — housing neurons that activated selectively for social encounters, they listened in on the goings - on by placing very fine electrodes in proximity.

Small electrodes placed on or inside the brain allow patients to interact with computers or control robotic limbs simply by thinking about how to execute those actions.

By applying the method developed in this research, measurement of the negative ion flow at places still closer to the plasma electrode is possible for clarifying more detailed mechanism of the negative ions extracted as a beam.

Ortigue and Bianchi - Demicheli put the improved EEG to the test by placing a set of 128 electrodes on a group of healthy volunteers and showing them pictures of people in swimsuits.

In that earlier work, the group designed tiny rubber pillars containing electrically conductive carbon nanotubes, which were placed over a pair of electrodes side by side.

When one attempts to recharge a battery by reversing the direction of electric current flow, the opposite takes place: a reduction reaction proceeds at the negative electrode, and an oxidation reaction takes place at the positive electrode.

To increase the current produced by the structures, the group created bundles of several microtubes and placed them between needle electrodes to measure the structures» properties.

This is done by placing electrodes on the head and recording brain wave responses.

Surface EMG recording electrodes (MediTrace Pellet Ag / AgCl electrodes, disc shape, and 10 mm in diameter, Graphic Controls Ltd., Buffalo, NY, USA) were placed over the muscle belly of the rectus femoris, measured by half the distance between the anterior superior iliac spine and the patella, as suggested by Mesin et al. (21).

The color in the display is presented by using colored particles in an electrode placed above the grayscale unit.

The ERG is done by placing a contact lens on the eye and 2 small electrodes on the head.

A nerve conduction test is done by placing electrodes on an individual's legs or arms (depending on where the injury occurred and where numbness, tingling, etc. is felt).

First, while electrodes were placed for the ERP recording (average time to complete, 20 minutes; range, 17 - 22 minutes), the number of the spontaneous comments made by every participant was counted.

The shyness - BI index significantly predicted the number of spontaneous comments made by children (mean ± SD, 3.39 ± 4.87; range, 0 - 17) while the electrodes were being placed on their scalps, and the number of lifetime symptoms of social phobia (mean ± SD, 2.26 ± 2.72; range, 0 - 8) collected by the K - SADS interview, but no other symptoms of mental disorders assessed with the K - SADS (the prediction closest to significance pertained to separation anxiety, with P =.18).