Whose name is linked to the famous illusion showing that people can be unaware of obvious changes?

Daniel Simons, a psychologist, is known for the ‘invisible gorilla’ experiment with Christopher Chabris, published in 1999. In the study, many participants focused on a counting task and failed to notice a person in a gorilla suit walking through the scene. The experiment became a landmark example of inattentional blindness, showing that attention is limited and selective. It is one of the most famous demonstrations in cognitive psychology.