Sleep, Circadian Rythms and Dreaming – Consciousness (PSY, BIO)

by Tarry Ahuja, MD

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    Okay. So, why do we sleep? So an obvious thing is we need to sleep in order to survive. So that’s called the survival theory. And that we’re diurnal by nature, meaning that we’re creatures of the day. And that makes sense, right? A lot of animals are like this, is that they have better vision during the day, there are less predators during the day and so we function during the day and we go to bed at night. So the restorative theory is that sleep allows the body to heal and repair tissue to include -- including the brain, allows it to reorganize, consolidate, and store the memories that we have. Now, this theory is quite popular because, again, it makes a lot of sense because during the day you’re quite active. You’re spending energy, you’re using your muscles, you have a lot of tissue damage. At night time you need to shut down, let everything take care of itself, and all the interactions and engagement that you had during the day need to get consolidated and stored, which is another reason why a lot of times, your dream involved concepts of what’s happened to you that day. Okay? So during the day, you got up, you went to school and you heard your professor. You talked to that cute girl down by the coffee shop. You went and had dinner with some friends, you watched a sporting event, and then you went to sleep. It’s not a coincidence at night your dream involves, you know, the girl that you met, all of a sudden, you’re in a sporting event, you’re the star. You know, and so on. So concepts and pieces of what’s happened in your day start to show in that movie that’s playing in your...

    About the Lecture

    The lecture Sleep, Circadian Rythms and Dreaming – Consciousness (PSY, BIO) by Tarry Ahuja, MD is from the course Making Sense of the Environment.

    Included Quiz Questions

    1. Sigmund Freud
    2. Carl Jung
    3. Calvin Hall
    4. Wilheim Stekel
    5. Robert McCarley
    1. REM stage
    2. NREM stage 1
    3. NREM stage 2
    4. NREM stage 3
    5. NREM
    1. Lucid dreaming
    2. Daydreaming
    3. Somnabulism
    4. Unconscious dreaming
    5. Activation synthesis
    1. Circadian rhythm
    2. Infradian rhythm
    3. Ultradian rhythm
    4. Phase advance
    5. Phase delay

    Author of lecture Sleep, Circadian Rythms and Dreaming – Consciousness (PSY, BIO)

     Tarry Ahuja, MD

    Tarry Ahuja, MD

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