Motion Perception Flashcards
(10 cards)
What are the functions of motion perception?
Help break camouflage
Help attract attention
Help segregate objects from the background
Help us interpret events
Help us determine the structure of objects
Help us determine what actions people are performing
How can motion allow us to interpret events?
You can infer causality relationships and social relationships.
What is a Point-Light Walker?
Placing lights on a person’s joints and having them perform an action.
What is akinetopsia?
A person with akinetopsia cannot perceive motion.
What is illusory motion?
When something appears to be moving but isn’t. Think of the rotating snake illusions.
What is a motion aftereffect?
When you stare at something moving in one direction for a period of time and then look at something stationary,
What is induced motion?
A moving background or object can cause a stationary object to appear to move.
What is motion-induced blindness?
When something is moving, it is harder to notice other changes to it. For example, if something is moving and changing colour, you might not notice the change in colour.
What does the footsteps illusion tell us?
That contrast affects motion perception. High contrast objects appear to move faster than low contrast objects.
What is the aperture problem?
When you can’t see the ends of a line, the movement of the line is ambiguous. Means that the line may appear to be moving horizontally and not vertically.
