PERCEPTION

1
PERCEPTION
Translation of meaningless physical sensations
into meaningful experience

• Via
• Selection
• Organization
• Interpretation

2
Selection (of Signals)
Selective attention Focusing conscious awareness
on part of the environment
Neisser Becklen 75 selective looking
Cherry 59 shadowing task
Conclusion When task is challenging enough,
selective attention is nearly complete
3
Organization
Clustering of bits of sensory information into
meaningful wholes.
Visual/auditory
4
(No Transcript)
5
(No Transcript)
6
Necker cube
Animated Necker Cube
Is the dot in the front, or the back, of the cube?
7
CONTEXT EFFECTS
8
GESTALT PSYCHOLOGY
Principles
Figure-Ground relationship
Closure
Constancy Size Shape Brightness Color
9
DEPTH PERCEPTION
Binocular vs. Monocular
Retinal disparity
Linear perspective
Interposition
Relative Size
Relative Height
Texture Gradient
Relative Clarity
10
(No Transcript)
11
DEPTH PERCEPTION
Gibson Walk (1960)
12
Monocular Cues
Linear Perspective Size Constancy Relative
Height Texture Gradient
13
Monocular Cues in Art
Bateaux Tapestry (circa 1066)
The Waterfall M.C. Escher, 1961