Sentences with phrase «as electrical activity»

It made him think of the timing of the heartbeat, as well as the electrical activity of the heart itself.

Not exact matches

Dr. Laurie Helgoe cites several studies in which researchers compared the two and found that introverts generally have higher levels of electrical activity in the cerebral cortex, which may explain why they limit external stimulation so as to maintain an appropriate level of arousal.

Those are converted into electrical impulses that pass to the part of the brain known as the hypothalamus, which governs our endocrine system and hormones, and much of our activity.»

Van Meter Industrial, a distributor of automation and electrical products, awards points for activities such as participating in its Biggest Loser contest and walking campaigns.

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.»

But these are regarded as epiphenomena, as the rattling of the train is to the motion of the train, or else phenomena equated with chemical and electrical activities in the brain.

2010 Lynford L. Goddard is honored as the first recipient of the AAAS Early Career Award for Public Engagement with Science for exemplifying an early career scientist eager to share his excitement about science and demonstrating excellence in reaching high school students with activities in electrical engineering, while simultaneously pursuing a competitive research career.

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.

As they slept, researchers recorded their electrical brain - wave activity using scalp electroencephalography (EEG).

Because the neural circuitry of the brain operates via electro - stimulation, applying small amounts of electrical current to the scalp (transcranially) has been investigated as a means of modulating brain activity.

«Just as it takes time to train a person to swing a squash racket like an expert, it takes time to train one's neurons to produce the ideal activity patterns,» says Byron Yu, associate professor of biomedical engineering and electrical and computer engineering at Carnegie Mellon.

Recording the electrical activity of neurons directly from the surface of the brain, the scientists found that for a simple task, such as repeating a word presented visually or aurally, the visual and auditory cortexes reacted first to perceive the word.

But at a certain threshold — like a tickle turning to a sneeze — the electrical activity suddenly spiked, and simultaneously the lamprey's tail began to swish back and forth, as if the creature were swimming, continuing for about 20 seconds.

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.

As signals are sent from one cell to the next, rhythmic patterns of electrical activity, commonly known as brain waves, are generateAs signals are sent from one cell to the next, rhythmic patterns of electrical activity, commonly known as brain waves, are generateas brain waves, are generated.

Brain activity is indeed rhythmic and appears as periodic electrical variations, classified according to their wavelength.

They in turn transmit messages to the brain as a pattern or code of electrical activity.

As Ray imagined moving the mouse, there was an increase in electrical activity among the neurons that would have controlled that action if his hand could move.

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.

George is referring to his role as editor - in - chief of Brain Stimulation, a journal launched three years ago to cover the growing list of technologies that can alter the brain's electrical activity.

He speculates that transient electrical signals flip dormant CPEB into their high - activity, prionlike state as part of memory formation.

Scientists in the US are planning to map the brain activity of the dragonfly as it hunts, using a specially built backpack to transmit electrical signals from the insect's active neurons to a computer.

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.

Under this procedure, a patient's brain is cooled to as low as 50 degrees Fahrenheit, which causes electrical activity in neurons to stop — suggesting that long - term memories are stored statically.

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.

A new study confirms that thunderstorms are linked to outbreaks of asthma, and researchers suggest that the storms» airflow patterns are to blame rather than other contenders such as thunder, electrical activity, or rain.

To map the speech centers, Chang and his colleagues recorded electrical activity from about 12 patients while they pronounced various sounds, such as «bah,» «dee» and «goo.»

«Most of our activity right now is related to safety testing for solar panels and modules as well as electrical components that would connect the solar panel to the house and grid.»

Interestingly, by recording the electrical activity in the spinal cords of mice depleted of NPY interneurons, the researchers discovered that the NPY neurons seem to selectively inhibit or gate light touch signals coming from hairy skin, but not the non-hairy (glabrous) skin, such as the skin found on your palm.

Although the electrical activity of muscles, he explained, is normally considered as artifact noise that needs to be filtered out to attain clean EEG signals that are of interest, they are still informative about how facial muscles move, such as during a wink.

«We found more changes in brain electrical activity in male subjects, than in females, which was a surprise, as we expected it would be the other way around.

In an electroencephalogram (EEG)-- a recording of the brain's electrical activity — the synchronous rhythm of the nerve cells manifests as a periodic pattern.

As in fMRI, scientists use these changes in blood flow to approximate electrical activity in neurons.

His lab has spent several years working out the mechanism for how presynaptic cells release neurotransmitter in response to spikes of electrical activity known as action potentials.

Imaging scans would reveal the additional blood flow and electrical activity as thousands of neurons flare in response.

As part of this therapeutic surgery, both epileptic and nearby regions with less or no epileptic electrical activity were also removed.

Intracortical BCIs such as BrainGate use a tiny array of implanted electrodes to pick up the electrical activity of neurons in the motor cortex of the brain.

The extracellular space's fluid — a reservoir of ions critical for electrical activity and synaptic transmission — appears as tiny black spaces among white filaments and blobs.

Brian Pollard at the University of Manchester, UK, and colleagues used a new method called functional electrical impedance tomography by evoked response (fEITER) to record the brain activity of 20 people as they responded to a general anaesthetic.

Furthermore, the scientists proved the device's mechanical durability through repeated bending and stretching, exceeding 10,000 times, of a conductor attached on the forefinger; they also established its reliability as an electrode for electromyogram recordings when its readings of the electrical activity of muscles were comparable to those obtained through conventional gel electrodes.

«Our goal in the project was to close the gap in knowledge that exists on role of serotonin in the brain cortex, particularly as it concerns brain circuitry, its electrical activity and function,» said Roberto Fernández Galán, PhD, Assistant Professor in the Department of Neurosciences at Case Western Reserve University School of Medicine.

Scientists recorded electrical activity in the brains of rat pups as their mamas nursed, licked and cared for their offspring.

This may help us to understand how processes such as learning and memory formation, which require long - term changes in the brain, arise from the short bursts of electrical activity through which neurons signal to each other,» Greenberg said.

The device is thought to modulate electrical activity in the circuitry of the dysfunctional brain, explains Oxford University neurosurgeon Tipu Aziz, who is exploring DBS as a treatment for cluster headaches.

They report this month in the Proceedings of the Royal Society B that changes in the heartbeat due to temperature (the heart slows as it cools and then speeds back up as the fish resurfaces) and adrenaline, released from the stress of diving, alter the electrical activity of the heart cells to sustain the constant calcium cycling needed to keep the heart going.

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.

Such studies could guide still - experimental therapies such as transcranial magnetic stimulation, which aims to suppress or boost brain activity in targeted areas through electrical currents.

Just as computers use programming languages such as Java, the brain seems to have its own operating languages — a bewildering set of codes hidden in the rates and timing with which neurons fire as well as the rhythmic electrical activities that oscillate through brain circuits.

To be clear, lightning itself poses very little danger to passengers inside an aircraft, as a plane's cabin is well - insulated against any external electrical activity.

Bettencourt and his colleagues at Arizona State University (A.S.U.), Dresden University of Technology in Germany and New Mexico's Santa Fe Institute, modeled the growth of a city according to three categories of factors: material infrastructure (road surfaces, electrical cable, etc.), human needs (such as total energy consumption and housing) and patterns of social activity, including total bank deposits, research and development, new cases of AIDS and new patents filed.