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  2. Alexander Borbély - Wikipedia

    en.wikipedia.org/wiki/Alexander_Borbély

    Alexander A. Borbély (born 1939 in Budapest) is a Hungarian-Swiss pharmacologist known for his sleep research.. Borbély proposed the two-process model of sleep regulation in 1982 which postulates there are two complementary processes (S and C, which stands for Sleep and Circadian, respectively) which together account for one's sleep schedule. [1]

  3. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    In 1993, a different model called the opponent process model [98] was proposed. This model explained that these two processes opposed each other to produce sleep, as against Borbely's model. According to this model, the SCN, which is involved in the circadian rhythm, enhances wakefulness and opposes the homeostatic rhythm.

  4. Serge Daan - Wikipedia

    en.wikipedia.org/wiki/Serge_Daan

    Serge Daan, together with Borbély and Beersma, developed a model which convincingly explained the observations. It was called the two-process model of sleep regulation and explained human sleep regulation in terms of two key processes: a circadian pacemaker, and a homeostatic drive to sleep that increases during wake and decreases during sleep ...

  5. Sleep in bipolar disorder - Wikipedia

    en.wikipedia.org/wiki/Sleep_in_bipolar_disorder

    In the two process model of sleep, it has been proposed, that depression is characterized by a deficiency in the building up of process S. [27] Therefore, sleep deprivation might increase process S in the beginning, but a relapse occurs, when sleep deprivations isn't applied anymore and process S returns to a low level. [27]

  6. File:Two-process model of sleep regulation.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Two-process_model_of...

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  7. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    This model proposes a homeostatic process (Process S) and a circadian process (Process C) that interact to define the time and intensity of sleep. [71] Process S represents the drive for sleep, increasing during wakefulness and decreasing during sleep until a defined threshold level, while Process C is the oscillator responsible for these levels.

  8. Derk-Jan Dijk - Wikipedia

    en.wikipedia.org/wiki/Derk-Jan_Dijk

    1987: Demonstrated that sleep timing can be shifted by bright light [9] 1988: Identified gender differences in human sleep [11] 1994/5: Characterized the circadian process regulating human sleep [12] 1999: Discovered how circadian regulation of sleep changes with ageing [13] 2004: Discovered melatonin's effects on human sleep timing [9]

  9. Sleep and emotions - Wikipedia

    en.wikipedia.org/wiki/Sleep_and_emotions

    The dysregulation model is supported by neuroanatomical, physiological, and subjective self-report studies. Emotional brain regions (e.g. the amygdala) have shown 60% greater reactivity to emotionally negative photographs following one night of sleep deprivation, as measured by functional magnetic resonance imaging. [5]