Use Gestalt Psychology to explain optical illusions Copyright Allyn and Bacon 2006 Perceptual Ambiguity and Distortion Illusions The incorrect interpretation of a stimulus pattern ID: 273621
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Slide1
I CAN
Use Gestalt Psychology to explain optical illusions.Slide2
Copyright
© Allyn and Bacon 2006
Perceptual Ambiguity and Distortion
Illusions
The incorrect interpretation of a stimulus pattern (shared by others in the same perceptual environment)
Ambiguous figures Images that are capable of more than one interpretationSlide3
Copyright
© Allyn and Bacon 2006
Perceptual Illusions
Do you see or ?Slide4
The Gestalt Laws of Perceptual Grouping
Max Wertheimer
(1923)
These laws suggest how our brains
prefer to group stimulus elements together to form a perceptSlide5
The Gestalt Laws of Perceptual Grouping
Similarity
Proximity
Continuity
Common fate
Prägnanz
ClosureSlide6
Tendency to fill in gaps in figures and see incomplete figures as complete
ClosureSlide7
Similarity
We tend to group similar objects
Proximity
We tend to group objects together when they are near each other.
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Continuity
We prefer perceptions of connected and continuous figures over disconnected and disjointed ones
Common Fate We tend to group similar objects together that share a common motion or destination Slide10
Prägnanz
We perceive the simplest pattern possible
This is what makes things such as proofreading a text so difficult
Reality is reduced to its simplest formSlide11
Law of Pragnanz and the ‘face’ on Mars
People mentally process visual information that…
is symmetrical
contains the simplest shapes possible
contains the fewest number of shapesSlide12
CAN I?
Use Gestalt Psychology to explain optical illusions.Slide13Slide14
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Necker CubeSlide15Slide16
There are only white circles at the intersectionsSlide17Slide18
Who is
this
a picture of?
If you said Clinton you are correct. If you said
Clinton and Gore, you Are wrong. Its a picture of Bill Clinton in the foreground and the same picture of him in the background, but with a different haircut.. Slide19Slide20Slide21Slide22Slide23Slide24Slide25Slide26Slide27
The rows of black and white squares are all parallel.
The vertical zigzag patterns disrupt our horizontal perception.
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The center circles are both the same size.
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Warped Squares?
There are no curved lines in these figures. You can use a ruler to check it out.
The diagonal patterns created by the tiny squares distort the perception of the pictures.
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Various Illusions
http://www.michaelbach.de/ot/mot_adapt/index.html
http://www.michaelbach.de/ot/mot_silencing/index.html
http://www.michaelbach.de/ot/mot_mib/index.html
http://www.michaelbach.de/ot/mot_kaleidoscope/index.html
Expanding spiral
Moving color dots
Motion Induced Blindness
Kaleidoscope MotionSlide31
Can you find "the hidden tiger"? Not the obvious one that everyone sees. Look for words in stripes
Can you see both the frog and the horse on this visual illusion?Slide32Slide33
You probably see Albert Einstein on this picture. However, if you stand up and step 15 feet away, you will see Marilyn Monroe on the same picture. Slide34Slide35Slide36Slide37Slide38Slide39Slide40Slide41Slide42Slide43
Old and Young - Crazy Optical Illusion Painting Slide44Slide45Slide46
Can you find the man’s face in the coffee beans?Slide47Slide48Slide49Slide50Slide51Slide52Slide53Slide54Slide55
1000
20
30
1000
1030
1000+ 20______
4100Slide56Slide57
Dogs in the yard– black & white/color
http://www.illusions.org/dp/color.htm
Beach scene – color/black and white
http://www.grand-illusions.com/opticalillusions/colour_illusion/Slide58Slide59
High Society, or a Donkey?