In the simplest terms, cognitive biases are errors in perception. They may arise from habits of thought–like jumping to conclusions. They may occur because of how your brain compensates for its inability to process all the information that exists at any one moment. Cognitive biases result in partial or prejudiced viewpoints that impact our interpretation of problems. They affect us all and can cause interferences with daily life–including making accurate medication selections.*
Dozens of different types have been identified. The biases we are illustrating here–inattentional blindness and change blindness–result in interferences with attention and accurate visual perception.