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As sleep progresses

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    Grace W.
    UY
    Grace W.

    great

    Chontelle L.
    BM
    Chontelle L.

    The level of comfort in the patient determines the accuracy in the emg results

    David B.
    US
    David B.

    I enjoy this course hope i pass.

    Peter Awuni A.
    GH
    Peter Awuni A.

    What is the implication of rapid eye movement at sleep?

    Darrell L.
    US
    Darrell L.

    During a sleep study, are the first two nights of sleep ever useful? What is meant by the brain waves being higher in amplitude? Are they more drastic?

    Tamekia Dominquie T.
    US
    Tamekia Dominquie T.

    A lot of people go into deep sleep when they are tired or may have some type of health issue going on.

    Odongo M.
    UG
    Odongo M.

    Psychology -> As sleep progresses As sleep progresses As sleep progresses and becomes deeper and deeper, the EEG recordings reveal brain waves which are slower in frequency and higher in amplitude. Stages three and four of sleep reveal these slow waves which are called delta waves.(3-5 cycles per second). (Try to remember delta = deep sleep.) Delta Waves. Delta Waves. An electromyograph (EMG) is a device that measures electrical activity in the muscles through electrodes attached to the chin. This machine helps to establish if a person is in rapid eye movement (REM) sleep, as the output would show low activity due to relaxed muscles (atonia) in REM sleep. The electro-oculargram (EOG, eye movements) is used to measure eye movements by attaching electrodes to the skin around the eyes. It also assists in the recognition of REM sleep, as the EOG shows high activity due to rapid eye movements in REM sleep. Most sleep research takes place in a sleep laboratory. As a person's sleep is affected by their surroundings, a sleep laboratory attempts to mimic a home. It contains one or more small bedrooms and furnishings and decorations are as homelike and comfortable as possible. A subject may spend a couple of nights in the sleep laboratory before data is recorded from them, as it is expected that they may be unsettled for the first night or two because of the new environment. However, by the third night, sleep is essentially normal and from this point on, observations can be considered useful.

    Dominic M.
    KE
    Dominic M.

    It is intresting how one happens to be in a busy dream while in delta stage.

    Dominic M.
    KE
    Dominic M.

    waking up a sleeping child takes long than a adult-why?

    Enemchukwu E.
    NG
    Enemchukwu E.

    Interesting

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