What’s Perceptual Blindness?

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Perceptual blindness, also called perceptual blindness or inattentive blindness, is a type of visual perception. It is a phenomenon where people cannot see things in plain sight. The brain controls what is processed even if the eyes see the information. There are four factors that determine which visual information is processed by the brain and which is discarded – visibility, workload, expectation and capacity – and an imbalance in any of these can lead to perceptual blindness.

The senses of the human body are constantly collecting information. Unfortunately, not all of this information is processed for perception. This is because, while there is no limit to the information that comes in, there is a limit to what the brain can process. Because of this, the brain uses four factors to determine what information is processed. Perceptual blindness is likely to occur when one of these factors is out of balance.

Visibility is the first factor influencing perception. Sensory visibility is how the brain perceives things based on colors and shapes, while cognitive visibility is the amount of relevance the brain places on visual information. Both of these aspects can be manipulated by the brain. Some background information can be discarded if it doesn’t fit the brain’s goals of sensory or cognitive visibility, such as a specific flag flying among many others or one person wearing a black shirt among many people wearing black and white shirts. These are cases of perceptual blindness.

The workload is related to the workload of the brain. Perceptual blindness will occur more frequently while the brain is also trying to perform other tasks. Multitasking is common to many people, but performing two of the same types of perception tasks can reduce the amount of attention your brain provides. Two visual activities, such as watching a cyclist pass by and observing pedestrian crossing signs, can cause an increased workload for the brain, which can lead to missing information.

Expectation and ability are the last two factors that can influence perceptual blindness. People expect things to look a certain way, particularly if they’ve been the same for a while. If something changes, those items can be overlooked. Capacity is the amount of attention that each person can devote and varies according to each person’s mental capacity for learning.

Preventing perceptual blindness involves multiple steps and a little time. Distractions from the task at hand should be kept to a minimum. Focusing on specific tasks one at a time should be practiced. Big businesses can be broken down into smaller ones. When working on long tasks, short breaks can help organize your thoughts and allow your brain to rest for a few minutes.

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