this post was submitted on 13 Jul 2023
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I recently read that in a neurotypical human being, the succession of two experiences only has a big impact on brain activity for the first experience, while the second makes a smaller spike. In psychotic patients on the other hand, the impression makes two equally large spikes both times. In the experiment, the experience was hearing a ballpoint pen click. So maybe being dulled to former experience is important for the brain to function properly, just a side effect of our natural brain filter.
That's sad, but comforting in a way.
The prefrontal lobe is the part of your brain responsible for saying "hush"
i.e. that's not a novel idea/stimulus anymore
This makes a lot of sense to me. I am trying to link it to survival and evolution, but can't pin anything down off the top of my head. I'm going to continue mulling it over though.