Hey Here. Welcome to Life Noggin.
You may think that since I’m merely an animation,
I wouldn’t be able to dream, right?
Well, you’re wrong.
Last night I had a dreamI had human-like facial features
and I wasn’t confined to the screen of your computer.
And I was able to explore the human world,
and look at all those fancy toilets.
I mean look at this weird thing.
A lot of people can’t remember their dreams.
And it’s kind of strange that we can’t recall something we do every single night.
We are asleep about a third of our lives
and dream at least 25% of that time.
Most of our dreaming occurs during a stage of sleep called rapid-eye movement or REM.
在这个阶段 就像它的名字说的那样 我们的眼睛一直在绕来绕去
In this stage, as the name suggestsour eyes move around
but the rest of our body becomes paralyzed.
That may seem terrifying,but it stops you from acting out your dreams
which could have some serious consequences,
like you falling off your bed
or flying into the sun.
But dreaming isn’t limited to just REM.
Dreams have been reported even when the sleeper had only non-REM sleep.
And even if a person getsa normal amount of REM sleep,
lesions in their temporo–parietal junction andmedial prefrontal cortex
are associated with a loss of dream recollection.
But luckily most of us don’t have that problem.
So then why do we forget most of our dreams?
Well, as we talked about in our videoabout why we forget things,
humans are really good at filtering outinformation that doesn’t matter.
If someting doesn’t grab our attentionor isn’t essential to know,
you don’t remember it.
Think about the stream of consciousness you have when you’re making breakfast in the morning.
Chances are you can’t recite it back to me.
Some scientists think the same is true of dreams.
But perhaps there is a neurological difference
between those who recall most of their dreamsand those who do not.
To test this, researchers studied the brain waves ofboth types of sleepers.
They primarily studied alpha wavesbetween 8 to 12Hz
which are also present when you are awake.
Interestingly, oscillations of these alpha wavesare associated with inhibition,
meaning that a decrease in amplitude would correspond to release in inhibition
and therefore increased excitability.
So let’s relate that back to our dreams.
While the volunteers were awake,
tones were played in their ears alongwith occasional and random first names.
Those who recall their dreamsfour or more times a week
had a more sustained decrease in their alpha waves
compared to those who only recall their dreams once or twice a month.
In other words, the high recalling group had a deeper processing of the first names while they were awake.
However this difference was notthere during REM sleep.
Instead, the alpha waves increased,
possibly causing the volunteer to wake up.
In fact the main difference between groups was that
those who recalled their dreams often woke up more throughout the night.
This led scientists to believe that the time awake
allows the dreams informationto be encoded into long-term memory,
allowing the sleeper to remember it the next morning.
More time awake, more time to store the information.
Make sense, right?
But before we can say anything conclusivewe need more research.
We are just at the tip of the iceberg when it comes to our knowledge about dreams.
And my knowledge about toilets.
What is happening there?
Anyway why we forget dreams is still not exactly known.
So tell me, do you remember most of your dreams?
And if so, what’s the weirdest dream you’ve had?
If you want to see Life Noggin make more awesome content,
consider contributing to our patreon page.
Head over to patreon.com/lifenogginstudios.
As always, my name is Blocko.
This has been Life Noggin.
Don’t forget to keep on thinking.