Research on this has been done, as well. In a study titled, “Where the Eyes Wander: The Relationship Between Mind Wandering and Fixation Allocation to Visually Salient and Semantically Informative Static Scene Content,” a group of scientists attempted to observe how the mind orders and prioritizes visible information and how conscious we are of

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Using brain scanning and behavioural experiments, researchers at the Center for Integrative and Cognitive Neurosciences at Vanderbilt University have identified a unified attentional bottleneck in the human brain, which impacts both perception and action. Simply put, we’re bad at dividing our attention between different tasks.