When the scientists
measured the electrical activity in the subjects» brains, they found that the brain's auditory cortex was stimulated by pictures associated with sounds, in less than 200 milliseconds.
After 2 to 4 weeks, the researchers
measured electrical activity in the Barrington's nucleus and the locus ceruleus.
«
We measured the electrical activity of groups of nerve cells within the subthalamic nucleus in patients with Parkinson's disease, who had recently been treated with deep brain stimulation.
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.
Then
they measured electrical activity while waiting for a seizure to happen.
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.
They also had electrodes placed on their scalp to
measure electrical activity in their brain.
The main problem is that it is extremely difficult to
measure electrical activity deep inside the brain of a living person, and differences between the brains of living people and those of the animals and cadavers that previous studies have used are significant.
Zapping the brain with magnetic pulses while
measuring its electrical activity is proving to be a reliable way to detect consciousness
Two techniques used in adults — functional magnetic resonance imaging (fMRI), which can measure blood flow; and electroencephalography (EEG), which
measures electrical activity in the outer layers of the brain — have their drawbacks.
Next, the team recruited 14 sighted participants to listen to these sounds through earbuds while strapped into a magnetoencephalogram (MEG), which
measures electrical activity in the brain.
These are the electrocardiogram (ECG), which
measures the electrical activity of the heart using leads on the chest, and fingertip pulse oximetry which uses photoplethysmography.
The team used a quantitative electroencephalogram (QEEG), which
measures electrical activity through 19 electrodes resting on the head during specific tasks.
Over in the corner of the lab, Thomas Hoellinger of the Free University of Brussels (ULB) in Belgium is wearing an EEG cap, which
measures electrical activity at various points across his scalp.
To observe brains on the brink of death, Borjigin and her colleagues implanted electrodes into the brains of nine rats to
measure electrical activity at six different locations.
Using a tiny sensor implanted in the dACCs of the monkeys, Platt's group was able to
measure the electrical activity of single neurons.
18 healthy volunteers were monitored by using EEG to
measure the electrical activity generated by their brains» neurons (the signalling cells) while simultaneously recording fMRI measurements.
Monkeys typically find other monkeys impossible to ignore, and this experiment was no exception: the monkeys often failed at the reward task because they looked at the faces, especially if the faces depicted emotion.When humans are torn between paying attention to two different things, it triggers a «conflict» circuit in a brain region called the dorsal anterior cingulate cortex (dACC) which is part of a larger brain structure controlling rational thought and emotions.Using a tiny sensor implanted in the dACCs of the monkeys, Platt's group was able to
measure the electrical activity of single neurons.
Simultaneously, we will use several electronic brain implants that can
measure the electrical activity of over a hundred neurons in the monkey's hippocampus and entorhinal cortex.
EMG really
measures the electrical activity produced in muscles when they contract.
An electrocardiogram (ECG)
measures the electrical activity of the heart and allows accurate determination of both heart rate and rhythm.
An ECG
measures the electrical activity and rhythm of your pet's heart.
Typically, our anaesthetized patients are monitored with the following: Capnograph (measures expired carbon dioxide and breaths), Apnea alarm (alarms if breathing stops), Pulse Oximetry (measures Oxygen levels in the blood), Scrolling EKG (
measures electrical activity of the heart), Blood Pressures (using a Oscillometric Cardell Blood Pressure unit), Thermometer (keeping the patient warm is critical to success) and of course a dedicated technician monitoring other parameters (like depth of anesthesia, pulse pressures, etc) continuously throughout.
During BAER testing,
we measure the electrical activity in your pet's auditory nerve pathway in response to a number of clicks that are transmitted to their ears through headphones.
The ERG is a test which
measures the electrical activity of the retina.
The helmet features a soft forehead - based sensor that uses EEG (electroencephalography) to
measure electrical activity in the rider's brain, along with an ear - based sensor that's used to remove noise from the EEG signal.
Not exact matches
For example, a standard measurement tool used by neuromarketing is the EEG (electroencephalogram), which
measures our brain's
electrical activity.
The $ 299 device
measures brain
electrical activity via 16 scalp sensors, which the company claims allow recognition of basic emotions and up to 30 specific thoughts, such as «lift this object,» «fire death ray,» or «fly forward.»
Also there is evidence of molecular mechanisms in the cell membranes that can amplify small changes in the field to produce large changes in neural
activity.13 On the other hand, earlier tests of Kohler's theory found that interference with
electrical gradients over the cortex had no effect on behavioral
measures (see note 11 for reference to these studies).
We drew blood samples to
measure hormone levels and detected shivering by special devices placed on the skin that sense muscle
electrical activity.»
Structural magnetic resonance imaging (MRI), which
measures the anatomy and structural integrity of the brain, and magnetoencephalography (MEG), which
measures magnetic fields created by the brain's
electrical activity, were used to track potential age - related differences as groups of younger and older adults performed a memory task.
Their research technique of
measuring electrical brain
activity using an electroencephalogram (EEG) in these brain regions also predicted mild cognitive impairment (MCI), a condition that is likely to develop into Alzheimer's, with 80 per cent accuracy.
Speech, emitted or received, produces an
electrical activity in neurons that neuroscientists
measure in the form of «cortical oscillations.»
Lamm and his group recently sought the answer to answer this question by combining
measures of
electrical activity in the brain (via electroencephalogram) with functional magnetic resonance imaging to show blood flow patterns in 25 participants getting rounds of shocks on their hands.
This method was mainly invented to overcome the technological barrier to
measure the
activity from many neurons simultaneously, using the assumption that each neuron tends to fire spikes of a particular waveform which serves as its own
electrical signature.
Their team persuaded 22 volunteers — some Doom experts, some casual players, and mostly male — to spend two nights in their laboratory hooked up to an electroencephalograph (EEG), which
measures the brain's
electrical activity.
The team examined the brainwave patterns of 36 infants (17 in the first experiment and 19 in the second) using electroencephalography (EEG), which
measures patterns of brain
electrical activity via electrodes in a skull cap worn by the participants.
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.
After getting a full night's rest at the lab, which researchers monitored by
measuring neural
electrical activity, their brains were scanned via functional MRI as they waited to be shown, and then viewed 90 images during a 45 - minute session.
He also
measured physiological signs of stress, like
electrical activity in the skin.
One answer is to
measure the brain's
electrical activity using a common tool we call the electroencephalogram (EEG).
Binghamton researchers encrypted patient data using a person's unique electrocardiograph (ECG)-- a measurement of the
electrical activity of the heart
measured by a biosensor attached to the skin — as the key to lock and unlock the files.
«Until now, it was quite challenging to accurately
measure the
electrical patterns of stomach
activity in a continuous manner, outside of a clinical setting.
The EPOC detects brain
activity noninvasively using electroencephalography (EEG), a
measure of brain waves, via external sensors along the scalp that pick up the
electrical bustle in various parts of the furrowed surface of the brain's cortex, a region that handles higher order thoughts.
To go further, the pair started combining their electrode recordings of individual neurons with readings from an intracranial EEG, which
measures overall
electrical activity in a larger area of the brain.
«We wanted to address this by
measuring the exact location and timing of
electrical activity in the subthalamic nucleus and comparing the results with behavioural data collected while a decision - making task is being performed.»
Scientists built miniature devices to
measure avian head movement, brain
electrical activity and GPS location, and they attached them — almost like hats and backpacks — to great frigatebirds of the Galapagos Islands in Ecuador.
«
Measures of
electrical brain
activity found that the hormone progesterone influences sleep, even at this late reproductive stage in perimenopausal women.»
Using electrophysiological methods to
measure electrical currents through cell membranes, the research group at the Institute for Physiology and Pharmacology, led by Marjan Slak Rupnik, showed that dextromethorphan extends the periods of
electrical activity in beta cells.
Having outfitted the twelve participants with electrode caps, the researchers used a
measure of the brain's
electrical activity known as event - related brain potentials (ERPs) to monitor their physiological responses to different outcomes.