Perception Flashcards
What is featural analysis?
Recognition of a whole object depends on its features
What is template matching?
Every object, event or other stimulus we encounter and want to derive meaning from is compared to some previously stored template
In terms of Marr’s theory, what is primal sketch?
2D sketch description of main light-intensity changes of a visual stimulus, includes info about edges, contours & blobs
Observer centred
In terms of Marr’s theory what is 2 1/2 D sketch?
Shading, texture, binocular disparity and very basic info about depth
Observer centred
In terms of Marr’s theory what is 3D model representation?
3D aspects of an objects shape
Viewpoint invariant
What is Bierdermans Recognition-by-component theory suggesting about how object perception is achieved?
What are they called?
Object perception is achieved via volumetric primitives
Geons
How many geons?
36
What is the whole picture?
A perceptual or structure possessing qualities as a whole that cannot be described merely in subparts
What are GESTALT principles?
FCCPSC
Figure and ground Closure Continuity Proximity Similarity Common fate
What is common fate?
Elements are likely to be perceived as a unit if they move together e.g. Flock of birds
What is similarity?
What are dissimilar objects thought of as?
Object look similar to one another people perceive them as a group or pattern e.g. A sigil
Anomaly
What is continuity?
When the eye is compelled to move through one object and continue through another e.g. A curve
What is closure?
When an object is not completed we fill in the gaps e.g. WWF Panda
What is proximity?
When objects are placed close together they are perceived as a group
What is figure and ground?
The eye differentiates an object from its surrounding area a shape is perceived as figure surrounding area is background
What did Davenport and Potter find?
Inconsistent objects (priest/ Rugby player) and inconsistent background (church/playing field) were less accurate than consistent
What is top down processing?
How our brains make use of info brought into brain by one or more sensory systems
What is prototype matching?
An extant match between the stimulus and template is not required only an approximate match
What is a prototype?
Abstract forms representing the basic elements of a set stimuli
What makes objects become more salient in the environment?
Joint attention between caregiver and infant
Taylor found New Guinea have two terms, what are they?
Mola- white, red, orange, yellow, pink, purple
Mill- black, blue, green
What do many languages not have?
Separate terms for green and blue but one term
How many Berlin and Kay’s universal colour terms were there?
What did Berlin and Kay argue their study suggest?
11 basic colour terms (monolexemic)
Different native speakers can perceive the world the same way
What did Roberson find about grue?
Distinguished less between green and blue squares