Attention to ecological information

We are surrounded by information - ecological information in the form of structured energy distributions - light, sound, etc. Our exquisitely attuned perceptual systems unconsciously detect complex and subtle mathematical paterns in this environmental, ecological energy - information. Ecological information is the basis of our perception, attention, and action.

A classic example is time-to-contact information for driving, walking, for any kind of locomotion, for any kind of organism. We directly see how long it will take for an object to contact us, or for us to contact an object, based on the rate of expansion of the optical structure in the environment (not retinal images - many organisms don't have images of any kind). This is not a calculation in the brain; it's a direct perception of the affordances of contact, based on real structure in the light - the information. This is a powerful example of how we directly perceive the affordances of the environment - what Gibson meant by "direct perception"...perception of affordances, where affordances are the perceivable possibilities for action in the world. This is a powerful example of how we directly perceive the affordances of the environment - what Gibson meant by "direct perception"...perception of affordances, where affordances are the perceivable possibilities for action in the world.

Our studies include the world's first research using real driving in real cars (not a simulator) demonstrating how mobile phone conversations can impair attention, driving control, and safety. We also showed how postural stability is the foundation of improved attention, better perception, and safer driving. My research has also focussed on multi-tasking, attention, and communication. Contrary to common belief, cognitive multitasking is only possible if one focusses attention on one topic at a time (or if they are cognitively unrelated). Switching between tasks is okay - but trying to do two things at once is inefficient and often impossible.

Attention, distraction, and safe driving are based on attention to - and detection of - information. This allows the perception of what actions the environment affords - the affordances of the environment. Information is detected; affordances are perceived.

Three kinds of distraction: cognitive, manual, and visual. Speaking on a phone while driving is a huge cognitive distraction (as well as a visual and manual distraction).

Key Findings

Publications: Driving stability, attention, and safety

See also: All publications