Example: when you live next to a train station, the train sound is very apparent when you first move there. However, after a while, you don’t notice it anymore.
How does that work?
In: 3
Briefly, your brain is simply not concentrating (entering adaption) on that noise so it’s not ‘recognized’ and seen as abrupt in your pov. You simply just are not focused on it so it’s dulled out – just like you typing this post while your 10 year old dog is in your peripheral vision playing – your brain recognizes it as ‘meh’ and moves on – now if you didn’t have a pet dog – your brain would fire off – same deal with noise, smell or anything.
It’s not that you are not hearing it – you just aren’t concerned with it so your brain doesn’t send a cue to be alert. Can’t be exact but by evolution, if a lion roars next to you – your brain will fire off transmitters that alert you of danger, but if that lion roars for 5 years straight and has turned into your pet kitten, you won’t even flinch and your brain won’t fire off the same level of alertness thus you won’t perceive the same level of noise; key word is perceive – the noise level hasn’t changed, your brains perception is just turning a blind eye.
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