Perception Flashcards
sensation
information we receive from our senses processed by sense receptors
perception
organisation and interpretation of sensory information
difference between sensation and perception
sensation: detection of stimulus
perception: interpreting what it means
visual cues
features of the environment that give us information about movement, distance ect
constancies
seeing objects as the same despite seeing them from different angles and distances
monocular depth cue
way of judging depth with one eye
list all monocular depth cues
- height in plane
- relative size
- occlusion
- linear perspective
height in plane
objects higher up in the visual field appear further away
relative size
smaller objects in the visual field appear further away
occlusion
- objects in front of others appear closer to us
- objects behind others seem further away
linear perspective
when parallel lines converge in the distance the point at which they come together is perceived to be further away
binocular depth cue
way of judging depth with two eye
list all binocular depth cues
- retinal disparity
- convergence
retinal disparity
difference between the left and right eye’s view which the brain receives to give information about depth and distance
convergence
- the eyes become closer (converge) when objects are close to us
- eye muscles work harder to give information about depth and distance
size constancy
we keep our original perception of the size of an object even when the information received by the eye changes
eg-people are the same size whether they’re far away or close
misinterpreted depth cues
wrongly applying the “rules” of depth perception
objects in distance scaled up by brain to look normal size
examples of misinterpreted depth cues
- Muller Lyer Illusion
- Ponzo Illusion
- The Ames Room
ambiguous figures
when there is more than one interpretation of an image (brain can’t decide which one is correct)
examples of ambiguous figures
- Rubin’s Vase
- Necker’s Cube
fiction
creating an image (seeing something) that isn’t there
example of fiction
Kanizsa Triangle
Muller-Lyer illusion
misinterpreted depth cue
- ingoing fins: shape of outside of building, appears closer so scaled down
- outgoing fins: shape of inside of room, appears further away so scaled up