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  2. Music and sleep - Wikipedia

    en.wikipedia.org/wiki/Music_and_sleep

    Approximately 25% of the population facing sleep difficulties regularly use music as a tool for relaxation. [2] This process can be either self-prescribed or under the guidance of a music therapist. Music therapy is introduced into the medical field for treating sleeping disorders following scientific experimentations and observations.

  3. Hypnagogia - Wikipedia

    en.wikipedia.org/wiki/Hypnagogia

    To identify more precisely the nature of the EEG state which accompanies imagery in the transition from wakefulness to sleep, Hori et al. proposed a scheme of 9 EEG stages defined by varying proportions of alpha (stages 1–3), suppressed waves of less than 20μV (stage 4), theta ripples (stage 5), proportions of sawtooth waves (stages 6–7 ...

  4. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    Gamma waves are seen when a person is highly focused on a task or using all their concentration. Theta waves occur during the period of a person being awake, and they continue to transition into Stage 1 of sleep and in stage 2. Delta waves are seen in stages 3 and 4 of sleep when a person is in their deepest of sleep. [19]

  5. Slow-wave sleep - Wikipedia

    en.wikipedia.org/wiki/Slow-wave_sleep

    Slow-wave sleep (SWS), often referred to as deep sleep, is the third stage of non-rapid eye movement sleep (NREM), where electroencephalography activity is characterised by slow delta waves. [ 2 ] Slow-wave sleep usually lasts between 70 and 90 minutes, taking place during the first hours of the night. [ 3 ]

  6. Meditation music - Wikipedia

    en.wikipedia.org/wiki/Meditation_music

    Meditation music is music performed to aid in the practice of meditation.It can have a specific religious content, but also more recently has been associated with modern composers who use meditation techniques in their process of composition, or who compose such music with no particular religious group as a focus.

  7. Ambient music - Wikipedia

    en.wikipedia.org/wiki/Ambient_music

    Sounds of natural habitats are common in YouTube uploads of ambient music, with their thumbnails typically having images of natural landscapes (i.e. beaches, rainforests, etc) and as well as space, to attract listeners. Ambient music is a genre of music that emphasizes tone and atmosphere over traditional musical structure or rhythm.

  8. Brain activity and meditation - Wikipedia

    en.wikipedia.org/wiki/Brain_activity_and_meditation

    This investigation involved the creation of a "compassion meditation" state by novice and experienced meditators and testing the meditators response to emotionally charged sounds. fMRI results indicated heightened activity in the cingulate cortex but also in the amygdala , temporo-parietal junction, and right posterior superior temporal sulcus ...

  9. Sleep cycle - Wikipedia

    en.wikipedia.org/wiki/Sleep_cycle

    The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle , sleep–dream cycle , or REM-NREM cycle , to distinguish it from the circadian alternation between sleep and wakefulness .

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