how our brains notice when something has changed?

Question

For example, if I go into my room and something is moved, my brain will unconsciously realize and bring it into conscious awareness that something has changed. How does the brain detect these changes and decide it’s important enough to bring to awareness? What processes are happening when we notice changes?

In: 15

Answer 1

This is also the reason for the “doorway effect”. You walk into a room, your brain absorbs information about the new surroundings and you can’t remember that you were grabbing your car keys.