Sentences with phrase «of slow wave sleep»

«Dogs and humans have the same type of slow wave sleep (SWS) and rapid eye movement (REM) and during this REM stage dogs can dream.

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.

Many of us get about an hour to an hour and a half less sleep per night than we need... Naps of 90 to 120 minutes usually comprise all stages, including REM and deep slow - wave sleep, which helps to clear your mind, improve memory recall, and recoup lost sleep....

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

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.

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.

After only getting half of a night's worth of sleep, the children showed more slow - wave activity towards the back regions of the brain — the parieto - occipital areas.

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.»

One example is that a particular kind of «deep sleep» called «slow -(brain)- wave - sleep» helps memory by taking pieces of a day's experiences, replaying them and strengthening them for better recollection.

People's brains produce less slow - wave sleep after age 40, according to György Buzsáki of Rutgers University.

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.

Slow - wave sleep is also the time when neurons rest and the brain clears away the molecular byproducts of mental activity that accumulate during the day, when the brain is busily thinking and working.

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.

The next morning, the participants who had been beeped out of slow - wave sleep reported feeling tired and unrefreshed, even though they had slept just as long as usual and rarely recalled being awakened during the night.

Every time their brain signals settled into the slow - wave pattern characteristic of deep, dreamless sleep, the researchers sent a series of beeps through the headphones, gradually getting louder, until the participants» slow - wave patterns dissipated and they entered shallower sleep.

Sleep apnea disrupts slow - wave sleep, so people with the disorder often wake up feeling unrefreshed, even after a full eight hours of shut -Sleep apnea disrupts slow - wave sleep, so people with the disorder often wake up feeling unrefreshed, even after a full eight hours of shut -sleep, so people with the disorder often wake up feeling unrefreshed, even after a full eight hours of shut - eye.

Memory waves It is well established that sleep strengthens newly formed memories, and slow brain waves are thought to enhance the transfer of information from the hippocampus, a brain structure that is crucial to memory formation, to other parts of the brain for long - term storage.

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

As participants slept, right hemisphere regions showed consistent slow - wave activity regardless of the night.

So - called unihemispheric sleep happens in animals when one side of the brain shows waking activity while the other side is asleep (an electroencephalographic recording of brain activity under these circumstances shows slow synchronous waves).

During slow - wave sleep, the hippocampus — a region of the brain that stores recent, episodic memories about discrete events — replays its files for the neocortex, home to more permanent memories.

Walker says the team now plans to examine the effects of disruption of certain types of sleep, such as REM sleep or slow - wave sleep.

Scalp electrodes worn at night by nine villagers during nine nights revealed biological signs of relatively light sleep compared with Westerners, including shorter periods of slow - wave and rapid eye movement sleep.

It has a somnolent effect on fruit flies, whose sleep is most likely equivalent to our slow - wave (non-REM) sleep, says neuroscientist Amita Sehgal of the University of Pennsylvania School of Medicine in Philadelphia.

The evidence, thus far, points to an origin of REM and slow - wave sleep at least as far back as the common ancestor of reptiles, birds and mammals, which lived about 320 million years ago,» explains Laurent.

They found that sounding a buzzer during «slow wave» sleep triggered sleepwalking in three of the sleepwalkers under normal circumstances, and all 10 sleepwalkers when they had been kept awake for 25 hours prior to sleeping.

In humans, sleep is also characterized by brain activity: periods of slow - wave activity are each followed by short phases of Rapid - Eye - Movement sleep (REM sleep).

Gilles Laurent and members of his laboratory at the Max Planck Institute for Brain Research in Frankfurt, Germany, describe for the first time REM and slow - wave sleep in a reptile, the Australian dragon Pogona vitticeps.

Another common feature with mammalian sleep was the coordinated activity of cortex with another area during slow - wave sleep: in dragons this other area is the so - called dorsal ventricular ridge.

In their report, Laurent and his colleagues describe the existence of REM and slow - wave sleep in the Australian dragon, with many common features with mammalian sleep: a phase characterized by low frequency / high amplitude average brain activity and rare and bursty neuronal firing (slow - wave sleep); another characterized by awake - like brain activity and rapid eye movements.

In contrast, a higher percentage of energy from saturated fat predicted less slow wave sleep.

«The findings we have suggest that slow - wave sleep is a very important part of the process.»

During slow - wave sleep, groups of neurons firing at the same time generate brain waves with triple rhythms: slow oscillations, spindles, and ripples.

During a 90 - minute nap, one of the tunes was played over and over during slow - wave sleep, which is thought to be an important period for memory consolidation.

Until now, most sleep research has focused on global control of sleep, which occurs when the entire brain is awash in slow waves — oscillations of brain activity created when sets of neurons are silenced for brief periods.

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.

«During sleep, maybe specific brain regions have slow waves at the same time because they need to exchange information with each other, whereas other ones don't,» says Laura Lewis, a research affiliate in MIT's Department of Brain and Cognitive Sciences and one of the lead authors of the new study, which appears in the journal eLife.

Most of the sleeping we do is of the SWS variety, characterized by large, slow brain waves, relaxed muscles and slow, deep breathing, which may help the brain and body to recuperate after a long day.

The brain generates two distinct types of sleep — slow - wave sleep (SWS), known as deep sleep, and rapid eye movement (REM), also called dreaming sleep.

Once a person enters stage 3 sleep, the brain begins to produce the slow and deep waves of delta sleep.

Sleep endophenotypes of schizophrenia: slow waves and sleep spindles in unaffected first - degree relaSleep endophenotypes of schizophrenia: slow waves and sleep spindles in unaffected first - degree relasleep spindles in unaffected first - degree relatives

These brain waves are thought to emerge from the thalamus and are generally associated with slow - wave sleep (during stages three and four of the stages of sleep.)

By giving the brain a series of nudges — in other words, by triggering K - complexes — could they strengthen the waves into a pattern that mimicked slow wave sleep?

Numerous sleep researchers noticed the similarity of the K - complex to other brain waves, namely those that the brain produces during its most restful periods — slow wave sleep.

In the third section of his talk (around 30 minute mark), Dr. McConnell discusses an experiment they are working on that uses EEG to monitor sleep, and according to their protocol, turn on a TES device (tACS - like) in order to induce slow wave EEG activity.

The amount of time spent in each sleep phase — stage 1, stage 2, slow wave sleep (or SWS — stage 3 and 4 combined) and REM sleep — was determined and expressed in minutes and as a percentage of total sleep time.