why does our brain play tricks on us? Shouldn’t it “protect us” by not scaring us?

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I”ve posted this in another sub too but thought maybe I get a more detailed info about our brain here.

Basically I read on the good old internet that if you stare for a period of time into the mirror that your brain will start playing tricks on you and scare you. Well I wanted to see for myself, indeed it did happen. A few times I thought I’ve seen someone behind me for a split second, or that my face moves even tho I didn’t move a muscle etc. Why would our brain do that to ourselves since it could harm us by making us panic therefore it being bad for our brain? Is there any reason that our brain does that? I’m quiet certain it’s not to protect us is it?

Additionally does this maybe explain why people say they seen bloody marry or other ghost storys connected to mirrors? That our brain for some reason plays tricks on us? Since if we go into the bathroom and we expect to see bloody marry by doing that ritual that our brain tricks us and makes us see it just cause we expected it to be there?
Maybe Im thinking too far

Why does our brain do this? Shouldn’t it do the opposite and protect us from it?

In: Biology

5 Answers

Anonymous 0 Comments

I’m sure someone will give you a more detailed answer but to simply explain what our brain is up to:

Or brain is wired to protect us from physical danger and harm, but it can cause us psychological distress while doing so. So when you’re staring into a mirror, as you get used to the view in front of you, your brain start scanning for threats around you, and since the greatest threat cash come from behind you where you can’t directly see, in a reflective surface your brain gets more active making sure there are no threats behind you.

Now if in this situation you start to panic, small things like a dark spot in your vision from increased blood pressure can be taken as a threatening shape that you saw in your mirror. And since your brain can’t fully process what it saw, it can make you think of ghosts of macabre images to match what you might have glimpsed at.

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