Inattentional blindness, also known as perceptual blindness, is failure to notice an unexpected stimulus that is in plain sight. This typically happens because humans are overloaded with stimuli. It is impossible to pay attention to all stimuli that is present in one's environment. A person’s attention cannot be focused on everything, and therefore, everyone experiences inattentional blindness. This is due to the fact that they are unaware of the unattended stimuli. Inattentional blindness also has an effect on people’s perception. There have been multiple experiments performed that demonstrate this phenomenon.
Read more about Inattentional Blindness: Experiments Demonstrating Inattentional Blindness, Possible Causes, Exploitations
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