How can a memory of a traumatic event be so fast forward almost we couldn’t remember it?

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( for example falling from stairs, accident of you riding a motorbike etc )

excuse my English as i am not a native speaker

In: Biology

I was confused by the question at first, but when you said you’re not a native English speaker I did some interpretation. I think you mean why is it “slowed down” like the single second lasts minutes.

The simplest way to put it is your brain goes into overdrive at that moment. It senses the danger to your life so it starts to use more resources to process all the information your senses are giving it.

But that isn’t the norm for your brain. Normally you don’t consciously notice those senses. The brain just takes in the information, looks for changes and then gets rid of it if nothing has changed. In the traumatic event your brain is actively processing and remembering every detail it experienced, which is just an basic animal survival strategy. Meaning that memory “takes up” more brain cells then the memory of your breakfast.

Think of it in terms of cameras. Normally your brain is recording like a normal camera (about 60 frames every second). Now in the emergency it starts recording more frames every second meaning that it captures more information that when played back at normal speed looks super slowed down.