快速動眼期

出自維基百科,自由嘅百科全書
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紅色框框入面嘅係一個人 REM 嘅腦電活動:圖中顯示 REM 嗰時個人嘅腦有高頻嘅電活動。

快速動眼期rapid eye movement sleepREM)係一種喺哺乳類鳥類當中先會見到嘅睡眠階段,特徵如下:

  • 喺 REM 嗰時,隻動物會快速噉郁動,而且全身嘅肌肉會偏向放鬆;
  • 腦電圖(EEG)研究發現,REM 係一個「好似醒咗」噉嘅睡眠階段,一個處於 REM 嘅人嘅腦會有 gamma 波等高頻率嘅電活動[註 1],而且呢啲高頻電活動仲強到同一個清醒嘅人嘅相似-相比之下,非 REM 嘅睡眠階段特徵係腦電活動由 delta 波等嘅低頻活動主宰[1]
  • REM 同發夢好有啦掕,
    • 研究發現,人喺身處 REM 嗰時零舍有可能會發夢-據研究,如果喺 REM 嗰時俾人叫醒,大約 80% 嘅人會話自己醒之前喺度發緊夢,而如果喺非 REM 嘅睡眠階段俾人叫醒,得 40% 左右嘅人會話自己臨醒之前發緊夢;
    • 而且 REM 嗰時嘅夢更加生動-喺 REM 嗰陣俾人叫醒嘅人喺描述自己醒之前嗰個夢嗰陣,能夠對個夢作出更加詳細以及敘事式嘅描述,而且更加有可能會覺得個夢像真度高[2][3]

註釋[編輯]

  1. 有關電活動頻率嘅詳情,可以睇吓腦電波

睇埋[編輯]

[編輯]

  1. Luca Matarazzo, Ariane Foret, Laura Mascetti, Vincenzo Muto, Anahita Shaffii, & Pierre Maquet, "A systems-level approach to human REM sleep"; in Mallick et al, eds. (2011).
  2. Edward F. Pace-Schott, "REM sleep and dreaming", in Mallick et al, eds. (2011), p. 8. "A meta-analysis of 29 awakening studies by Nielsen (2000) revealed that about 82% of awakenings from REM result in recall of a dream whereas this frequency following NREM awakenings is lower at 42%."
  3. Dmitri Markov, Marina Goldman, & Karl Doghramji (2012). "Normal Sleep and Circadian Rhythms: Neurobiological Mechanisms Underlying Sleep and Wakefulness". Sleep Medicine Clinics, 7(3), September 2012.