OOooh, good question!!! The short answer is : it depends 🙂
Here is the long answer: People attend to objects that are ‘salient’ meaning that they are different than the rest of the world. A salient object could be a single object that is moving against a still background (like a bird that is coming at your head!). A salient object could be one that is different from others (like some bloke in a oragne t-shirt among the England fans at the world cup). These kinds of differences are picked out by our brains almost automatically.
BUT- what our current GOALS are also influence which objects we attend. When we are walking into the kitchen to make a cup of tea, we are more likely to attend to the kettle than when we are walking in to find some crisps.
All together: our brain uses information both about an objects saliency AND whether an object is part of our current goals in determining where we attend.
Hope that helps! 😉
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