Gibson And Gregory Flashcards
What’s meant by direct theory?
Perception is the same as sensation
Define motion parallax
Monocular depth cue that provides the brain with important information to do with movement
What’s the optic array?
Everything we can see at one time
What’s an inference
Interpretation of what something actually represents or means
What’s an optic flow pattern?
When we are moving, the information in our brain allows us to make judgments on how fast we are going and the direction of our movement. If there’s no ‘flow’ our brain knows we aren’t moving.
Define motion parallax
When the observer is moving, things nearby appear to move faster then things further away.
Evaluation points of Gibson’s theory.
Strength - developed using research of real life pilots
World War Two pilots, very good at explaining the everyday perception of things like how movement and depth occur. Real world relevance
Weakness - can’t explain perceptual errors - visual illusions prove him wrong, Gregory’s more useful
Strength - young infants support Gibson - reluctance to crawl off cliff would not have been learned - human perceptions are innate
Define constructivist theory
Argument that we make sense of the world around us by building our perceptions based partly on incoming data and partly using clues from what we know about the world
Define nurture
Refers to those aspects of behaviour that are acquired through experience.
Evaluation points of Gregory’s theory?
Strength - shows cultural differences, nurture plays a key role - better explaining then Gibson’s direct theory
Weakness - unusual examples of perception - don’t really tell us how perception works in the real world.
Another weakness - doesn’t tell us how perceptions start in the first place - struggles to explain innate perception
