Question

When you hear the word dream you think of sleep. What do you think of
when you hear the words 'moon' and flowers. Write down about each in the
given space
Moon
Flowers​

Answer 1

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Answer 2

1. Why are dreams so weird

There’s a good reason why dreams are so skittish and peculiar.  Memories of life events – so-called episodic memories – are stored in a part of the brain called the hippocampus, and in rapid eye movement (REM) sleep signals coming out of the hippocampus are shut off. That means we can’t access specific memories of things that happened in the past while we dream.

But we can still access general memories about people and places, which form the backbone of our dreams. At the same time, activity in brain regions involved in emotional processes are cranked up, forming an overly emotional narrative that stitches these memories together. Bear with me while I use one of my recent dreams as an example.  I dreamed that a flood had surrounded the house I grew up in; I needed to try and fly out of the window to escape but I’d forgotten how to fly. The overwhelming feeling was emotion – fear and anxiety about the rising water levels and my inability to fly.

Another part of the brain, the dorsolateral prefrontal cortex, which controls our powers of both logical reasoning and decision making, is also shut down. I don’t stop to question why the flood water is rising so fast, nor why I’m back in my childhood home, nor even why flying to safety is an option.

This difference in brain activity compared to when we are awake helps explain why we feel like we have such scant control over our dreams – we are observers, along for the ride – and why when weird things happen we don’t raise an eyebrow until we wake up. In my dreams of water I often end up breathing underwater, as if it were completely natural.

2. Do we only dream in REM sleep?

The study of dreams – which for centuries was more of an exercise in imaginative explanation than anything approaching science – started properly in 1953, when Eugene Aserinsky and Nathaniel Kleitman at the University of Chicago hooked volunteers up to EEGs and woke them up during different sleep stages. They discovered REM sleep and its association with dreaming.

Recent experiments have shown that we dream throughout our sleep, and not just in REM sleep, but we forget most of them. Dreams that occur in deep sleep tend to be unemotional, non-vivid, concerned with simple things, and hard to remember. In short, they are boring. REM sleep is where the classic dreams occur, those with bizarre juxtapositions, physically impossible feats, disturbing, moving and puzzling experiences. If we cut short REM sleep, we lose these experiences.

Incidentally, many people have wondered if in REM sleep our eyes are moving to “look” at dream images. Some evidence suggests that this is indeed the case.