visual perception Flashcards
(26 cards)
Biological Factors
depth cues and the eye
Depth cues
Monocular depth cues and Binocular depth cues
Monocular depth cues
accommodation, motion parallax and pictorial depth
Accommodation
lens flattens to focus on far objects, lens bulges to focus on near objects
Motion parallax
uses movement to help us gauge distance, less movement means further away
Pictorial depth cues
texture gradient, linear perspective, relative size, height in visual field, interposition
Pictorial depth cues definition
allows us to perceive depth on a 2D surface
Binocular depth cues
convergence and retinal disparity
Convergence
refers to the eyes turning inwards when an object is close. closer the object- greater the convergence
Retinal disparity
refers to the differences in the different images projected on to the retina of each eye
Psychological factors
visual perception principles and perceptual set
Visual perception principles meaning
rules that apply to incoming visual information to help organise and interpret
Visual perception principles include
visual constancies and gestalt principles
Visual constancies meaning
our ability to know that an object remains the same despite different images projected on our retina (e.g the tree from diff angles)
3 visual constancies
brightness, size, and shape
Gestalt principles meaning
organise and group information in to meaningful whole
4 Gestalt principles
figure ground, similarity, proximity, closure
Figure ground
some images make up the fore-ground (front) some the background
Similarity
tendency to group objects based in their similar features
Proximity
tendency to group objects based on their distance apart
Closure
ability to mentally complete an image that is incomplete
Perceptual set
a predisposition to perceive something in accordance with what we expect it to be
Example of perceptual set
historical experiences
Social factors
external factors relating to an individuals interactions with others, their environment, community and culture
