Attention
Learning objectives: By the end of this presentation you will be able to…
compare feature to conjunctive searches and the typical outcomes of these visual search tasks
describe stages of Treisman’s feature integration theory and interpret outcomes of visual search tasks in terms of the theory; define “binding.”
define inattention blindness, describe three forms of it, and interpret inattention blindness in terms of feature integration theory.
Attention Binds: Inattention Blindness
Attention Binds: Inattention Blindness
I. Visual Search Tasks
A. Feature search
find the target by looking for a single feature.
what is the effect of increasing the number of other objects and what does this mean?
Attention Binds: Inattention Blindness
I. Visual Search Tasks
A. Feature search
B. Conjunctive search
find the target that combines two or more features (e.g. color and orientation)
what is the effect of increasing the number of objects and what does this mean?
Find the Blue Letter
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Find the Blue Letter`
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Find the Blue L
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Find the Blue L
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one last example: conjunction search x number of objects
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I. Visual Search Tasks
A. Feature Search
B. Conjunction Search
C. Findings
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Number of Items
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Conjunction
Feature
Attention Binds: Inattention Blindness
I. Visual Search Tasks
II. Treisman’s Feature Integration Theory
Steps in Treisman’s feature integration theory. Objects are analyzed into their features in the preattentive stage, and then the features are combined later with the aid of attention.
Attention Binds: Inattention Blindness
Attention Binds: Inattention Blindness
I. Visual Search Tasks
II. Treisman’s Feature Integration Theory
III. Inattention Blindness
A. Examples
Example 1
The next video is a test of the limits of your conscious attention. You’ll see people in white shirts passing a basketball along with people in black shirts passing a basketball. Pay close attention and see if you can keep track of how many passes are made by the white shirts.
How many times did the white shirts pass the ball?
Ans: 14
Oh, and Did You Happen to Notice the…
Attention Binds: Inattention Blindness
I. Visual Search Tasks
II. Treisman’s Feature Integration Theory
III. Inattention Blindness
A. Examples
Example 2: Change Blindness
Attention Binds: Inattention Blindness
I. Visual Search Tasks
II. Treisman’s Feature Integration Theory
III. Inattention Blindness
A. Examples
B. Explained
Attention Binds: Inattention Blindness
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Kurt Holzhausen