An analysis of the stages of sleep of human beings

These choices are shaped by a variety of factors, such as climate, protection from predators, housing type, technology, personal preference, and the incidence of pests.

Each is necessary for life, as deprivation of any one of those stages has been shown to reduce health and longevity in laboratory animals. The sound generated by the audio generator is the pleasing repetitive sound, as set forth above, amplitude modulated by the stage 3 and 4 EEG sleep pattern.

Regularly occurring periods of eye motility, and concomitant phenomena, during sleep. During sleep onset Stage 1, sleep is easily interrupted by very low intensity stimuli, like a door closing or a gentle nudge.

Notice that deep, slow-wave sleep is most prevalent at the start of the night, and that as the night progresses proportionally more and more time is spent in REM sleep. To mitigate the erroneous identification and to reduce the burden on doctors, a computer-aided EEG based system can be deployed in the hospitals, which can help identify the sleep stages, correctly.

The brain, especially, requires sleep for restoration, whereas in the rest of the body these processes can take place during quiescent waking. Breathing becomes more rapid, irregular, and shallow; eyes move rapidly in various directions and limb muscles become temporarily paralyzed.

Wakefulness is produced by such warning signals as auto horns, alarms, baby cries, etc. Neatly, this theory helps explain the irrationality of the mind during REM periods, as, according to this theory, the forebrain then creates a story in an attempt to reconcile and make sense of the nonsensical sensory information presented to it.

See the more complex graph below But beyond this simplified view, there is much more that can be said about both the characteristics of these two types of sleep and the way we move between their distinct stages of sleep throughout the night.

Normal Sleep Stages of Human Sleep Following the discovery of rapid eye movement REM sleep inresearchers learned that there are three basic states of consciousness: The spindles are short bursts of waves at a frequency of about 14 cps.

National Sleep Foundation

Namely, during REM sleep there is a lack of eye centering and fixation, which are essential to waking sight, but a presence of occasional slow, drifting movements that never occur during wakefulness.

Brain activity is at lowest, thought content is structured and analytical as during wakefulness. Although these nonbenzodiazepine medications are generally believed to be better and safer than earlier generations of sedatives, they have still generated some controversy and discussion regarding side-effects.

There are also, however, features of eye movements during REM sleep that are not real similar at all to that of wakefulness. This first REM episode of the night is often quite short-lived, usually lasting between 1 to 10 minutes.

Although it is common for people in many western societies to sleep in a single consolidated block of about eight hours during the night, this is by no means the only sleep pattern. It is well known in the prior art, as set forth above, that familiar, repetitive, pleasing sounds tend to produce drowsiness and sleep in an individual.

When Dement and Kleitman discovered that REM sleep was a distinct state init led them to reclassify the stages of sleep, separating REM from the other four stages of non-REM and giving us the model we use today.

All these steps take around ten minutes, and then there is a quick slide into a first period of deep sleep via a short light-sleep phase.

An accurate sleep stages classification system using a new class of optimally time-frequency localized three-band wavelet filter bank.

Different Needs for the Different Stages of Our Lives

Chapter 2 – Normal Human Sleep: An Overview Slow-wave sleep (stages 3 and 4) decreases across Thus, the most commonly used marker of REM sleep phasic activity in human beings is, of course, the bursts of rapid eye movements (Fig.

); muscle twitches and cardiorespiratory. Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, inhibition of nearly all voluntary muscles, and reduced interactions with surroundings.

The Five Stages Of Sleep & The Journey Through The Night

It is distinguished from wakefulness by a decreased ability to react to stimuli, but more reactive than coma or disorders of consciousness, sleep displaying very different.

A method of inducing sleep in a human being wherein an audio signal is generated comprising a familiar pleasing repetitive sound modulated by an EEG sleep pattern.

The volume of the audio signal is adjusted to overcome the ambient noise and a subject can select a.

An analysis of the stages of sleep of human beings

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A method of inducing sleep in a human being wherein an audio signal is generated comprising a familiar pleasing repetitive sound modulated by an EEG sleep pattern.

Natural Patterns of Sleep

The volume of the audio signal is adjusted to overcome the ambient noise and a subject can select a familiar repetitive sound most pleasing to himself.

An analysis of the stages of sleep of human beings
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The Five Stages of Sleep: Characteristics of non-REM & REM