Inattentional Blindness, Also Known as Perceptual Blindness Essay Example

or to keep count of bounce passes vs. aerial passes. In different versions of the video a woman walks through the scene carrying an umbrella, or wearing a full gorilla suit. In one version the woman in the gorilla suit even stops in the middle, faces the camera, and pounds her chest before walking out of the scene. [1] After watching the video the subjects are asked if they saw anything out of the ordinary take place. In most groups, 50% of the subjects did not report seeing the gorilla. Simons interprets this by stating that people are mistaken with regard to how important events will automatically draw their attention away from current tasks or goals.

This result indicates that the relationship between what is in one's visual field and perception is based much more significantly on attention than was previously thought. Another experiment was carried out by Steve Most, Daniel Simons, Christopher Chabris, and Brian Scholl. They had objects moving randomly on a computer screen. Participants were instructed to attend to the black objects and ignore the white, or vice versa. After several trials, a red cross unexpectedly appeared and traveled across the display, remaining on the computer screen for five seconds. The results of the experiment showed that even though the cross was distinctive from the black and white objects both in color and shape, about a third of participants missed it.

They had found that people may be attentionally tuned to certain perceptual dimensions, such as brightness or shape. NASA conducted an experiment in a flight simulator in which commercial pilots were tested to see if they would notice distractions on a runway during

simulated landings. Those who were trained pilots did not notice and landed directly on top of the distraction 1/4 of the time, while untrained pilots didn't know what to expect of a typical landing and thus saw the distraction.

Exploitations Inattentional blindness is exploited by illusionists in the presentation of "magic shows" in the performance of some tricks by focusing the udience attention upon some distractive element, away from elements of the scene under manipulation by the performer. This is called misdirection amongst magicians.

A good example is Derren Brown who repeats several of the original change blindness experiments, including the person change trick, where someone is asked to give directions to a 'lost' tourist clutching a map (conducted by Daniel Simons and Daniel Levin). Something like a door or a large object is passed between them by some workmen. When the door or object has gone past, the person who is asking for directions and clutching the map has changed. In the original experiments, about 50% of people didn't notice this.