Sentences with phrase «slow waves in»

Green and Arduini described an inverse relationship between hippocampal and cortical activity patterns, with hippocampal rhythmicity occurring alongside desynchronized activity in the cortex, whereas an irregular hippocampal activity pattern was correlated with the appearance of large slow waves in the cortical EEG.

The researchers believe the TRN fine - tunes the brain's control over local brain regions, enhancing or reducing slow waves in certain regions so those areas can communicate with each other, or inducing some areas to become less alert when the brain is very drowsy.

However, recent studies have shown that sleep - deprived animals can exhibit slow waves in parts of their brain while they are still awake, suggesting that the brain can also control alertness at a local level.

Some of the subjects learned, via feedback on a computer screen, how to control the slow waves in the alpha and theta ranges.

Electroencephalograms of other invertebrates show spiky static — «like bacon frying,» says neurophysiologist Ted Bullock of the University of California at San Diego, who nonetheless found vertebratelike slow waves in octopuses and cuttlefish.

Not exact matches

The spike in the use of sleeping pills has caused some alarm, with critics warning that these pills — sometimes known as benzos — actually cut down on critical REM sleep and slow - wave sleep during which we consolidate information, and pose a risk of dependence.

But in another session, a tone would wake them and prevent them from entering a slow - wave sleep stage.

In a study of isolated rats, they exhibited less slow - wave sleep.

The M&A wave has slowed in 2016, thanks in part to a string of deal - busting decisions by U.S. antitrust regulators.

The government's slow pace in filling vacancies on the Immigration and Refugee Board has led it to declare that it will no longer be meeting legislated timelines in the face of a wave of irregular asylum seekers crossing the Canada-U.S. border.

There are many different types of changes in an ambient environment — some very fast like electromagnetic waves, some very slow like the accumulation of pollutants in the air, and some with rapid onsets and offsets but long durations like rainfall.

It is more likely that one would find changes in the phase relations between slow waves and intracellular potentials.

you hear the grating roar Of pebbles which the waves draw back, and fling, At their return, up the high strand, Begin, and cease, and then again begin, With tremulous cadence slow, and bring The eternal note of sadness in.

Like all the ships caught by the chain in the past four centuries, in time this freighter will be taken apart by the waves and digested by the slow chemical processes of the sea.

Coming back down the strip, Garlits smiled and waved his arm in a slow pirouette that seemed more like a long sigh than a gesture.

«I think when the FIA brings the safety, to slow down a lot under double waved flags, the Halo is coming in... But launching a qualy which shouldn't have taken place, or at least after the out lap didn't seem that it was possible to run, I believe that decision should've been made a bit more differently.»

Your milk ejection reflex comes in waves — milk flows quickly, then slows down, then flows quickly again.

But your reality show will probably be a little different, first, because fewer than 15 percent of women experience a rupture of the membranes before labor begins, and second, because if your water does break in public, it's less likely to come as a torrential tidal wave and more likely to come as a slow leak, trickle or small gush.

As Lisa Belkin writes in her New York Times article, «Let the Kid Be,» there is a new wave of parents who are exploring «slow parenting» or «free - range parenting» as an alternative to the rigors, pressures, and competition of the over-involved approach.

That's in part because night sleep involves longer periods of deep, slow - wave slumber, and «you need to have an adequate amount of slow - wave sleep for brain restoration to happen,» explains Mark Mahone, a child neuropsychologist at the Johns Hopkins — affiliated Kennedy Krieger Institute.

In one study, children who consumed low levels of DHA had reduced amount of slow - wave (deep) sleep (Faglioli et al 1989).

Decrease of slow - wave sleep in children with prolonged absence of essential lipids intake.

I still believe, as I put it in chapter two, that «software», not «hardware» — the long, slow waves of cultural change, not the more obvious technological and economic changes that figure so prominently in public debate and academic social science — hold the key to the British predicament; that our ills form an interdependent system or, in medical language, a «syndrome»; and that they reflect the bewilderment and disorientation of a people who have forgotten the history that shaped them, and who therefore no longer know who they are.

Punctuating REM are interludes of slow - wave sleep, a state in which brain activity ebbs and the waves become more synchronized.

The two frequencies alternated every 40 seconds, reminding Laurent of the regular oscillations between high - frequency REM and slow - wave sleep found in mammals and birds.

«It slows down reconnection, and it can contribute to the generation of waves that, in turn, accelerate particles in other parts of the magnetosphere.

Inspired by a 2012 paper that proposed a correlation between such hotspots and the velocity of seismic waves moving through Earth's interior, UC Santa Barbara geochemist Matthew Jackson teamed with the authors of the original paper — Thorsten Becker of the University of Texas at Austin and Jasper Konter of the University of Hawaii — to show that only the hottest hotspots with the slowest wave velocity draw from the primitive reservoir formed early in the planet's history.

BOOSTING brain waves can make people move in slow motion.

The findings suggest a link between the slowing of movement and greater beta wave activity seen in people with Parkinson's.

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.»

To amplify slow waves and get them into optimal sync with spindles, researchers plan to apply electrical brain stimulation to the frontal lobe in future experiments.

The EEG results showed that in older people, the spindles consistently peaked early in the memory - consolidation cycle and missed syncing up with the slow waves.

Meanwhile, seismologist Don Helmberger of the California Institute of Technology in Pasadena and his colleagues saw seismic waves slow down dramatically in a patch at the bottom of the mantle under Iceland.

Seismic waves extracted from another hydrothermal feature in the north slowed down and scattered significantly in nearly the same area suggesting somewhere west of Old Faithful was an underground feature that affects the seismic waves in an anomalous way.

On the other hand, moderate levels of humidity slowed transmission in the central and northern states precluding a pandemic wave prior to summer break.

«Past studies have shown that brain waves travelling at slower speeds tend to be important for memory, while slightly faster speed brain waves play a role in our attention,» said Rondina.

While participant accuracy in the memory tasks was consistent across both groups, younger adults showed a surge in theta power (slower brain waves) that was predictive of their memory accuracy.

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.

But slower, more goal - directed waves, a mix of alpha and beta waves, are deeper in the brain.

In contrast, slower 12 to 30 Hz beta waves are the messages that help keep us on task by guiding the brain toward the sensory signals worth paying attention to.

It converts the rapid oscillation of the optical laser light wave into a fluctuation in the laser intensity that is precisely a factor of one million slower.

The changes in sleep architecture we observed are in an optimal direction, that is, more rich, slow wave sleep and less light or Stage 1 sleep, is a shift in the positive direction.»

They spent a significantly greater part of the night in deep, slow - wave sleep, a sleep stage where memories are replayed and consolidated to long - term storage.

While slow wave sleep was greater in those with a TBI they also had less non-REM stage 1 sleep, a form of very light sleep seen during the wake - to - sleep transition.

They noticed that the waves traveled faster in two vast arc - shaped regions under the margins of the Pacific Ocean (blue in the illustration), while they slowed down in two equally large plume - shaped regions below the central pacific and Africa (red).

«As such, they are even slower than phonons, the analogue to the water wave in the solid state, and this makes them detectable in our experiment.»

The waves slow down in relatively warm spots and speed up in cool ones.

«However, when we need to remember where we are going, like when finding our parked car later in the day, the hippocampus tunes into slow gamma waves.»

In contrast, CA3 sends its signals on slow gamma waves, which have a frequency of about 40 Hz.

Slow oscillations in brain activity, which occur during so - called slow - wave sleep, are critical for retaining memorSlow oscillations in brain activity, which occur during so - called slow - wave sleep, are critical for retaining memorslow - wave sleep, are critical for retaining memories.