What are the different stages of sleep and what are the characteristics of brain waves in each stage

Epilepsy diagnosis should be considered, and it is recommended to take regular medication under the guidance of a local doctor, and if the effect is not good, you can come to our hospital.

Chief Physician of the Children's Hospital Affiliated to Chongqing Medical University-** Center-Xiao Nong.

The answer is to burn the old bridge] :d

Knowledge: Basic Psychology Sleep.

Two contain a special state of consciousness, skin sleep and dreams. Depending on the changes in brain waves, sleep can be divided into four stages.

Answer: State laughs or]: b

Knowledge: Basic Psychology Sleep.

Two special states of consciousness, sleep and dreaming. According to the changes in brain waves, sleep can be divided into four liter stages.

a.Low frequency, high amplitude.

b.Low frequency, low amplitude.

c.High frequency, high amplitude.

d.High frequency, low amplitude.

Correct answer: High frequency, high amplitude.

It should be four phases, as REM is not strictly included in the four stages of sleep.

The REM phase is a special phase after the end of the fourth phase.

According to brain waves.

Sleep can be divided into four stages, the fourth stage of which the muscles are further relaxed and the functional indicators decline, that is, deep sleep.

Stage. The REM sleep stage occurs after the fourth stage, when the δ waves disappear, high-frequency and low-amplitude brain waves similar to waking appears, the eyes begin to move rapidly up and down, left and right, and dreams begin to appear. Then repeat the four stages of sleep again.

Analysis: The REM stage occurs after the appearance of δ waves, that is, the deep sleep stage, so dreams appear in the case of deep sleep, and dreaming is a manifestation of the brain fully resting.

Suggestions:

When the eyes are awake and the brain activity is tense;

Awake, quiet, with eyes closed;

Tired, trance-like waves; (arise in insomnia δ)

There are slow-wave sleeps and fast-wave sleeps.

The slow wave period is the sleepiness period (light sleep state), the waves gradually decrease, the low amplitude waves and waves are irregularly mixed together, and the brain waves are flat.

The stage is a light sleep period, with waves and a small number of δ waves, and sleep lozenges begin to appear.

The stage is moderate sleep, with high-amplitude δ waves, or waves (a combination of δ waves and waves).

The period is a period of deep sleep, with δ waves.

Fast-wave sleep manifests itself as irregular waves.

Answer] :d The electrical waves of the thick and vertical limbs of the brain are high-frequency and low-amplitude waves (14-30Hz) when awake, and low-frequency and high-amplitude waves (8-13Hz) when quiet. Electroencephalogram changes in the four stages of sleep: Stage 1:

The frequency, frequency, and amplitude of the mixture are lower. Stage 2: Occasional sleep lozenges (brief bursts of high-frequency, high-fibrillation brain waves, spindle waves).

Stage 3: Frequency decreases, amplitude increases, δ waves appear, and sometimes sleep ingots Stage 4: Persistent high-frequency and low-amplitude δ waves.

During the REM phase, there are high-frequency and low-amplitude brain waves like waking and eye movements, and dreams often appear in the rock world during this stage.

Answer]: Brother Bi C

Sleep onset occurs in the form of a wave (8 13 cycles per second): the brain is in a quiet and resting state, the frequency is lower than that of the patient, and the amplitude of the wave is slightly larger.