Driving 5 Flashcards
What is the information available for controlling steering
Surface cues in world are made up of textures
Optic flow- gives information on speed, arises from relative move,don’t of points on surface
What causes car sicknesses
Vestibular system can tell you might be moving, optic flow also tells, these two in conflict
What did Gibson 1958 suggest
Optic flow is a key component
Interaction with world emerges by moving through the world
What Gibsons Ecological approach
Simple informational variables that do not require extensive processing or memory
What are some problems with optic flow
- Eye movements alter it, the brain has to process retinal flow and this can cause a problem
- Visual direction of steering target can be used to steer
- prism glasses in front of eye can shift where target appears, people walk toward where target is shifted unit they get close enough and it changes back (curved pattern)
What did land and lee 1994 find about tangent point
Tangent point (inside of bend) found useful information in steering separate from optic flow
80% time looking at tangent point before entry to bend
Causes gaze angle info to indicate the future curvature of the road
Steering wheel held at angle proportional to gaze angle will steer you round the bend
What were the problems with land and lees experiment
Evidence from 3 p’s
Evidence from one unique road, one way, no traffic
Unclear what trajectory drivers took
What is driving an example of
Every day locomotion- steering ourselves through obstacles, a course, obtaining a particular goal
Visual motor control of steering, braking, ensuring speed and direction are correct
What did they find in Leeds for steering in controlled conditions
Real world: cannot control speed, road, pedestrians so in lab have repeatable conditions to see where p’s steering and looking
Found they spent most time looking in middle of road, towards points they wanted to turn to
