Perception
Perception
Do you see what you think you see?
Visual attention: Piecing things together – Movie Change blindness
In what ways might selective attention be beneficial?
In what ways might it be detrimental? What individual differences might lead some
people to notice changes that others do not?
Do you see what you think you see?
The gorilla on the court - Movie Selective attention
What does this simple study tell us about the nature of human perception?
What are some of the important everyday implications of our tendency to focus on only a very limited aspect of experience?
What do you see?
What do you see?
Figure & ground
Figure = Foreground - what we focus on Ground = Background
Which line is the longest?
Ponzo Illusion What else? Linear perspective
Which line is longest?
Muller-Lyer illusion
How do lights move?
Phi Phenomenon
Selective attention
Give an example
What is visual capture?
E.g. Motion sickness from movies
What is retinal disparity?
E.g. sausage example
If we are looking at the Gestalt, what are we looking at?
Depth perception
Will a baby crawl off the cliff?
Infants will stop at the “cliff”
What does this tell us? The ability to perceive
depth is at least partially innate.
Stroboscopic movement
Cartoon book flip pages
What is our perceptual set?
Give an example in police work. Give another example.
Context effects
Give an example
Human factor psychologists
Organizing machines to fit our natural perceptions How could this natural map be made even better?
Human factor psychologists: Designing flight instrument displays for pilots
Give an example of: Telepathy
Mind-to-mind communication Clairvoyance
Perceiving remote events Precognition
Perceiving future events Psychokinesis
Mind over matter E.g. bending a spook or raising a table
There is no reliable evidence that anyone possesses ESP.
Grouping
Proximity Similarity Continuity Connectedness Closure