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A Feature-Integration Theory of Attention, Slides of Psychology
It will experience you with 9 experiments testing predictions based on the theory.
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2021/2022
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A Feature-Integration Theory
of Attention
A. Treisman and G. Gelade (1980)
selective
divided
bottom-up
top-down
overt
covert
focused
sustained
alternating
attention
Feature Integration Theory
objects perception
separable
perception of
features (e.g.
color, shape,
orientation etc.)
combine / link
features in
objects
pre-attentive focused attention
Feature Integration Theory
support
9 experiments testing predictions based on
the theory
Visual Search
Texture Segregation
Illusory Conjunctions
Identity and Location
Interference from Unattended Stimuli
5 Areas
Feature Integration Theory
single features can be
detected in
parallel without
attention limits
conjunctions require
focal attention of
each object, resulting
in serial search
pre-attentive focused attention
find the S or blue
Visual Search
feature
find the S or blue
Visual Search
feature
Visual Search
T
X
T
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T
T
T
T
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T
X
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X
feature
Visual Search
T
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T
T
T
T
T
T
X
X
X
X
X
X
X
X
X
X
X
X
X
conjunction
Experiment 1
T
X
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S
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Feature
S
blue
Conjunction
Distractors: X ,T
Target: โS or blue ,โ T
Experiment 2
T X X T T X
X T T X X T
X T X X T X
T X T X T T
X T T T X T
X X T T X X
O N N O O N
N O O N N O
N O N N O N
O N O N O O
N O O O N O
N N O O N N
Condition: easy
Distractors: ,
Target:
Condition: difficult
Distractors: ,
Target:
O N
O
X T
T
Z
Q
Experiment 4
P+Q=
P =R
illusory โRโ
I+Z=I =T
illusory โTโ
Distractors: P , Q
Target: R
Distractors: P , B
Target: R
Distractors: P ( Q , B )
Target: R
P
P
P
P
P
P
P
P
P
P P
P
P
R P
P
P
P
P P
P
P
P P P
P
P
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P
P
B
B
B B
B
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R
P
P P
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P P
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Q
Q Q
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R
illusory conjunction
non-illusory conjunction
single feature