Sentences with phrase «electrical activity»

Recently, physicians seeking to resolve a patient's conscious state have gone right to the source, searching for signs of awareness using brain imaging or recording electrical activity of neurons.

Her lab is capable of measuring changes in electrical activity in the membranes of those cells, and has already done the same with nerve cells made from stem cells.

The participants wore a portable monitoring device to measure muscle activity with the device recording electrical activity of muscles in the arms and legs for approximately eight hours.

They also had electrodes placed on their scalp to measure electrical activity in their brain.

But there are differences in the brain electrical activity between the two types.

They showed these images to two monkeys while recording electrical activity from individual neurons in three separate face patches in both animals.

An instance of abnormal electrical activity in the brain is called a seizure.

Small electrical probes on the skin detect electrical activity, giving an assessment of retinal function.

So instead of winding down and preparing your body for sleep, your brain increases electrical activity and keeps you wired.

That defect, which affects electrical activity between cells, occurs in both heart and brain cells.

This ability to precisely control electrical activity in one or more neurons is unprecedented.

Then an increase in electrical activity occurred in a second brain region.

A seizure results from excessive electrical activity in the cerebral cortex of the brain.

The drawings depict physiological systems with networks of delicate lines flowing like electrical activity in abstract patterns.

The team was also able to reverse the abnormal electrical activity associated with the fragile X syndrome.

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

To compare these patterns to the actual electrical activity in the brains, the researchers inserted electrodes capable of recording the firing patterns of individual neurons.

The electrodes directly capture electrical activity from throughout the brain while the patients participate in experiments from their hospital beds.

Testing showed a significant increase in light - induced electrical activity from the eyes to the brain, indicating the rods and cones were operating as they should in the visual cycle.

When it detects unusual electrical activity in the brain, it sends a charge through two electrodes to stop or even prevent a seizure.

The researchers then measured cell composition and electrical activity again and found that the cells dramatically changed when they were in contact with neurons from different regions.

Making the brain vibrant are its relentless electrical activities.

A seizure is a transient, self - limiting physical manifestation of chaotic electrical activity in the brain.

A seizure is when there is too much electrical activity in the brain, all at the same time.

They are the result of sudden electrical activity in the brain.

A great source of heat, surely, but an extremely inefficient electrical activity.

The researchers measured electrical activity of the neurons within the ensemble and compared it with nearby neurons that were not activated by the environmental cue.

It uses computers to record electrical activity of the brain in response to sound stimulation.

They recorded electrical activity just outside individual brain cells of interest, and compared the signal with sounds the birds made.

After experiencing a similar episode three weeks later, he went to a doctor and learned he had epilepsy, a neurological disorder caused by abnormal electrical activity in the brain.

When certain actions within the game triggered increased electrical activity, the subjects were encouraged to repeat those tasks by earning monetary rewards.

This is a type of generalized seizure where the excessive electrical activity occurs on both sides of the brain, so both sides of the body are affected.

Another goal is to record electrical activity from a million living cells at once; current systems record only a few hundred at a time.

He also measured physiological signs of stress, like electrical activity in the skin.

The cap also includes a collection of textile - based, dry sensors that measure electrical activity in the brain, including signs that indicate the onset of mild traumatic brain injury.

They decided to try a more direct way of monitoring electrical activity in the hippocampus and related structures.

The team is exploring controlling their exoskeleton via patients» electromyography (EMG) signal — which records electrical activity produced by skeletal muscles — so that they'll be more actively involved in their training.

fMRI works by tracking blood flow in the brain, which can be used as a real - time proxy for electrical activity when neurons fire.

This included monitoring a number of markers for obstructive sleep apnea, such as electrical activity within the brain, eye movements and also snoring.

In an initial test, 174 individuals who ranged in age from their 20s to their 70s played the game while wearing electroencephalography (EEG) caps that read electrical activity in their brains.

Electroencephalography (EEG), which measures electrical activity through the scalp, was previously considered too insensitive to relay the neural activity involved in complex movements of the hands.

The brain has a normal level of «background noise,» Bengson said, as electrical activity patterns fluctuate across the brain.

In a normal brain, the neurons of the central thalamus crackle with electrical activity when we struggle to pay attention to the world around us, and they accelerate their action as we emerge from sleep.

See how researchers keep tabs on electrical activity inside the heads of the youngest young to spot developmental challenges

In one patient, the FO electrodes revealed frequent bursts of electrical activity called spikes, often associated with seizures, most which were not detectible by scalp EEG.

The researchers also tested electrical activity in the muscles and stretch reflexes in the lower legs and wrists during both arm cycling and walking tests.

But once the animals had learned the best route, the firing pattern was starkly different: high - level electrical activity appeared as the animals entered the maze, and when they ate their reward, but in between — while following the now - learned route in a more automatic fashion — neuronal activity was much lower.

For example, the Center brings in a device that uses electrical activity from a muscle to control a robotic gripper, which demonstrates the concept of a brain - machine interface.

Your brain transmits information about your current location and memories of past locations over the same neural pathways using different frequencies of a rhythmic electrical activity called gamma waves, report neuroscientists at The University of Texas at Austin.

To examine the mice's social interaction and brain activity, Takumi and the team of scientists studied electrical activity between neurons in their brain, performed behavioral tests — measuring calls between the mice, for example — and analyzed brain scans.