Sensation & Perception Part 2
Perceiving Forms and Objects:
Perceptual Set
: a readiness to perceive a stimulus in a particular way
Inattentional Blindness:
involves the failure to see visible objects or events because one’s
attention is focused elsewhere
Bottom-up processing:
progression of individual elements to a whole (starting with
sensations)
Top-down processing:
a progression from whole to individual elements (start out with
idea of what your going to see, perceptual set is a top down process)
Gestalt Principles:
Phi Phenomenon:
the illusion of movement created by presenting visual stimuli in rapid
succession
•
Form Perception:
o
figure and ground
o
proximity
o
closure
o
similarity
o
simplicity
o
continuity
Vocabulary:
Distal
: stimuli that lie in the distance
•
world outside the body
Proximal
: stimulus energies that impinge on sensory receptors
Perceptual hypotheses:
an inference about which distal stimuli could be responsible for
the proximal stimuli sensed
Perceiving Depth or Distance:
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- Spring '07
- Smith
- Psychology, Depth perception, Binocular Depth Cues, sensory receptors Perceptual
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