Sentences with phrase «electrical waves of»

LA JOLLA — Every night while you sleep, electrical waves of brain activity circle around each side of your brain, tracing a pattern that, were it on the surface of your head, might look like the twin hair buns of Star Wars» Princess Leia.

Neuroimaging studies showed that such triggers set off an electrical wave of firing neurons that spread over the occipital cortex at a rate of several millimeters per minute.

Not exact matches

Brain waves are electrical pulses that fire between masses of neurons, allowing those neurons to communicate with each other.

The EEG promptly reads these electrical waves and relates them to memory, emotions and attention according to the activity in specific areas of the brain.

Second, it seems that the model does not correspond to Whitehead's idea of what makes up electrical waves.

I do not know of any that exactly fits these features, but the electrical field of the brain (i.e., the field of «brain waves») comes very close.

Thus, the electrical field is made up of complex patterns of waves upon waves.

A mechanistic physiologist analyses my sitting at my word processor in terms of light waves hitting my retina from the keyboard and the screen which then set in train chemical and electrical processes in my nerves and brain.

«This is a big step in determining the identity of key components of the molecular machinery that converts sound waves into electrical signals in the inner ear,» said the study's co-senior author, Gregory Frolenkov, of the Department of Physiology at the University of Kentucky.

During REM sleep, the brain generates high - frequency waves of electrical activity and the eyes flicker; in humans, REM is closely linked to dreaming.

In 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cells.

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 persoElectrical signals between neurons generate electric fields that radiate out of brain tissue as electrical waves that can be picked up by electrodes touching a persoelectrical waves that can be picked up by electrodes touching a person's scalp.

While these brain rhythms, occurring hundreds of times a night, move in perfect lockstep in young adults, findings published in the journal Neuron show that, in old age, slow waves during non-rapid eye movement (NREM) sleep fail to make timely contact with speedy electrical bursts known as «spindles.»

The stethoscope picks up brain wave activity through a pair of wearable electrodes that detect electrical emissions from the neurons beneath them.

Applying alternating electrical signal to the material causes the material to deform periodically and generate sound waves that grow on its surface, similar to earthquake waves that grow from the center of the earthquake.

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

At the University of Lübeck in Germany, neuroscientist Jan Born studies the deepest stage of sleep, known as the slow - wave stage because of its characteristic electrical rhythm.

The currently employed method of measurement, which makes use of a second metallic layer converting these magnetic waves into a measurable electrical signal, has so far not been able to allow for a distinct assignment of experimentally detected signals.

T - ray test Clough, an R.P.I. doctoral student in electrical, computer and systems engineering who hopes to complete his PhD within a year, has demonstrated a cost - effective technique for using sound waves to boost the effective distance of terahertz spectroscopy from less than a meter to several meters.

Detailed looks at how the brain uses these waves raise the possibility of tweaking the signals with electrical nudges — interventions that could lead to therapies that can correct memory problems and mental illness, for instance.

Associate professor Patricio Vela and graduate student Miguel Serrano, both from Georgia Tech's School of Electrical and Computer Engineering, developed software algorithms that allowed detailed analysis of the wave - forms seen on the X-ray movies as a function of time.

Brown and his colleagues have previously analyzed the electrical waves produced by the brain in different states of activity.

Some researchers hope to get around such problems by exploiting tiny waves of electrons that exist on the boundary between a metal and an electrical insulator such as glass or silicon.

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.

Led by Professor Christopher James, Director of Warwick Engineering in Biomedicine at the School of Engineering, technology has been developed which allows electronic devices to be activated using electrical impulses from brain waves, by connecting our thoughts to computerised systems.

NiO is a promising material for spintronic devices, where signals are transmitted not by electrical currents but rather by spin waves, consisting of propagating disturbances in the ordering of magnetic materials, in a domino - like fashion.

Hearing aids merely amplify sounds, while cochlear implants transform sound waves into electrical waves that the brain interprets, but they don't pick up all of the natural frequencies.

After the associations between smell and place were well established, the researchers could see a pattern of brain wave activity (the electrical signal from a large number of neurons) during retrieval.

The changes to and propagation of light waves in an electrical field take place on a time scale of a few hundred attoseconds — in other words, within one billionth of a billionth of a second.

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.

Imagine an electromagnetic wave moving through a flat surface made of thousands of tiny electrical cells.

In deep, slow - wave sleep, recordings of the brain's electrical activity show sparse bursts of big, slow waves.

In a new paper, electrical engineers at Duke University demonstrate the first completely dielectric (non-metal) electromagnetic metamaterial — a surface dimpled with cylinders like the face of a Lego brick that is designed to absorb terahertz waves.

Three images, left to right, of the same thundercloud depict a less - than -10-milliseconds-long sequence of events: (left) formation within the cloud of a small channel, or «leader,» of electrical conductivity (yellow line) with weak emission of radio signals (ripples), to (middle) a burst of both dark lightning (pink) and radio waves (larger ripples), to (right) a discharge of bright lightning and more radio waves.

There may not yet be a market for underwater turbines or wave - riding electrical generators designed to use ocean turbulence as a source of renewable energy, but that has not stopped a handful of entrepreneurs from trying to create one.

In addition, during sleep the brain - wave patterns of dogs are similar to people's, and they exhibit the same stages of electrical activity that are observed in humans — all of which is consistent with the idea that dogs are dreaming.

Last year, Albert Polman at the FOM Institute for Atomic and Molecular Physics in Amsterdam and Nader Engheta, an electrical engineer at the University of Pennsylvania, developed a tiny waveguide device in which light waves of a single wavelength also achieved epsilon - near - zero.

In a project funded by electronics giant Samsung, a team of Penn State materials scientists and electrical engineers has designed a mechanical energy transducer based on flexible organic ionic diodes that points toward a new direction in scalable energy harvesting of unused mechanical energy in the environment, including wind, ocean waves and human motion.

A sound enters the ear and triggers a stream of action potentials, which nudge the waves of electrical activity coursing through the cortex into a particular chaotic pattern, or attractor.

In contrast to the variable radio waves of analog broadcasting, digital TV (or DTV) uses electrical pulses to transmit information precisely and efficiently.

The findings, in the Journal of Neuroscience, builds on Durand's work published late last year, identifying brain waves that appear to be spread through a mild electrical field — not the known transmissions through synapses, diffusion or gap junctions.

A spin wave can be thought of as similar to an ocean wave, which keeps water molecules in essentially the same place while the energy is carried through the water, as opposed to an electric current, which can be envisioned as water flowing through a pipe, said principal investigator Kang L. Wang, UCLA's Raytheon Professor of Electrical Engineering and director of the Western Institute of Nanoelectronics (WIN).

Mirkin's team used the technique, reported online this month in Nature Communications, to make working electrical devices including inductors, capacitors, and surface acoustic wave transducers, and even drew a 9 - millimeter - square map of the world.

The cochlea has the all - important job of transforming mechanical energy in the form of sound waves into electrical signals that run along auditory nerves to the brain.

Previous studies have shown that when a typically developing 20 - month - old child hears a word that she doesn't know, a characteristic uptick in brain waves in the left hemisphere of the brain can be detected through electroencephalography (EEG), a noninvasive method of measuring the brain's electrical activity.

When a pattern of electrical pulses passes round the ring, the distortions create a travelling wave which extends or contracts the lens to focus it.

The clever arrangement of two electrical conductors around the carbon nanotube leads to an efficient signal transmission between the carbon nanotube and a much larger conductor for electromagnetic waves.

A team of researchers have invented a new method to identify the origin of irregular electrical «storm waves» in the heart.

While the hull remains relatively stable, the buoys would bob up and down on the waves, causing the arms to pivot back and forth and drive a generator producing up to 1 megawatt of electrical power.

In the journal Applied Physics Letters, which is produced by AIP Publishing, the scientists describe the theoretical framework for an acoustic diode — a device that achieves a one - way transmission of sound waves much the same as an electrical diode controls the one - way transmission of electrical impulses.