SlideShare a Scribd company logo
Optical Illusions
By Miguel Cortinas and Ryan Longo
Main Objective

• Explain the idea of optical illusions and
their cause.
Introduction to Optical
Illusions
•
•
•

Optical Illusion- (visual illusion) caused by visually
perceived images that differ from reality.
The information gathered by the eye is processed in the brain
to give a perception that does not match up with the physical
measurement of the stimulus source.
Three main types: Literal, Physiological, and Cognitive.
Literal Illusions
•

•

Literal optical illusions are
images that differ from the
objects that create them.
Artists may use objects
such as fruit or foliage to
create a portraiture or
scenery.
Physiological Illusions
•

•

Physiological illusions are
the effects on the eyes and
brain of excessive
stimulation of a specific
type.
Artists may use color or
movement to confuse the
viewers' eyes and brains.
Cognitive Illusions
•

•
•

Cognitive illusions are
where the eye and brain
make unconscious
inferences.

They can also be known as
"mind games".
Perspective and color
heavily influence this
genre.
Idea of Optical Illusions
•
•
•

When we witness an illusion, we perceive something that
does not correspond to what is actually out there—what exists
in the real world.
Illusions fool us! They convince us of things that are not true.
Dictionary definitions of illusion usually state that an illusion
is a sensory perception that causes a false or distorted
impression, or a misrepresentation of a "real" sensory
stimulus.
Don’t Believe Your Eyes
•

•
•

Illusions are misperceptions that are perceived by most
people, and are based on a specific stimulus received under
certain conditions.
Some experiments with animals indicate that several species
of mammals and birds are "fooled" by illusions in much the
same way we are.

Illusions are different from both hallucinations and delusions.
Illusions
•
•
•

•

Illusion is a kind of wrong perception.
In illusion, an external stimulus is always present. In other
words, illusions are caused by external stimulations.
Illusion is almost universal.
The same situation arouses the same type of illusion in most
people.
Hallucinations
•
•
•

•
•

Hallucination is a false perception.
In hallucinations, no external stimulus is present. Hallucinations are
caused by internal stimulations.
A hallucination is seeing, hearing, tasting, smelling or feeling things
that do not really exist.
Certain drugs can cause hallucinations. Certain mental illnesses
can also cause hallucinations. People who have hallucinations are
not necessarily ill, lack of sleep can also cause hallucinations.
People who have hallucinations are not necessarily ill, lack of sleep
can also cause hallucinations. Hallucinations just before going to
sleep or just after waking up are considered normal.
Examples
This just looks like a
normal triangle right?
But where does it end?

At first look this cube
looks fine, but look at
the center stem.
Is It A Rabbit or A Duck??
Evaluation Questions
1. What is an optical illusion?
2.

What are the causes of optical illusions?

3.

What are the 3 types of illusions?

4. How do optical illusions differ from hallucinations and
delusions?
Any Questions??
Bibliography
•
•

•

Block, J. (n.d.). What is an Illusion?.sandlotscience.com. Retrieved
October 29, 2013, from
http://www.sandlotscience.com/EyeonIllusions/whatisanillusion.htm
Nierenberg, C. (n.d.). Optical Illusions: When Your Brain Can't Believe
Your Eyes. ABC News. Retrieved October 29, 2013, from
http://abcnews.go.com/Health/EyeHealth/optical-illusions-eye-brainagree/story?id=8455573
Nin, A. (n.d.). Causes of Optical Illusions.buzzle.com. Retrieved October
29, 2013, from http://www.buzzle.com/articles/causes-of-opticalillusions.html

More Related Content

What's hot

Disorders of perception (2)
Disorders of perception (2)Disorders of perception (2)
Disorders of perception (2)Nikhil Mp
 
Disorders of perception
Disorders of perceptionDisorders of perception
Disorders of perceptionSalman Kareem
 
Abnormal perception
Abnormal perceptionAbnormal perception
Abnormal perception
Dr. Imdadul Magfur
 
Optical illusion
Optical illusionOptical illusion
Optical illusion
hinamehboob
 
Perceptual abnormalities
Perceptual abnormalitiesPerceptual abnormalities
Perceptual abnormalities
Aman Agarwal
 
ILLUSION
ILLUSION ILLUSION
What is Hypnosis?
What is Hypnosis?What is Hypnosis?
What is Hypnosis?
Hypnotic_Healings
 
Disorders Of Perception
Disorders Of PerceptionDisorders Of Perception
Disorders Of PerceptionSamin Sameed
 
Presentation optical illusions.
Presentation optical illusions. Presentation optical illusions.
Presentation optical illusions.
LindseyfUF
 
Illusion with excercises!
Illusion with excercises!Illusion with excercises!
Illusion with excercises!
Mohammad Ali Jinnah University
 
Optical illusions
Optical illusionsOptical illusions
Optical illusions
Osman Uzun
 
Thought disorders 1 dr. arpit
Thought disorders 1   dr. arpitThought disorders 1   dr. arpit
Thought disorders 1 dr. arpit
Arpit Koolwal
 
Hypnotic Storytelling
Hypnotic StorytellingHypnotic Storytelling
Hypnotic Storytelling
Francois Coetzee
 
Disorders of thought
Disorders of thoughtDisorders of thought
Disorders of thought
niranjan hebbar
 
Final Illusion^^Phanish
Final Illusion^^PhanishFinal Illusion^^Phanish
Final Illusion^^Phanishguestddc76e
 
Visual illusions
Visual illusionsVisual illusions
Visual illusionstessywyatt
 
Dreams
DreamsDreams
Dreams
biomedicz
 
Psychology: Dreaming. by Janice Fung.
Psychology: Dreaming. by Janice Fung.Psychology: Dreaming. by Janice Fung.
Psychology: Dreaming. by Janice Fung.Janice Fung
 
Stepping into Coherence
Stepping into CoherenceStepping into Coherence
Stepping into Coherence
Francois Coetzee
 
Senstation and Perception
 Senstation and Perception Senstation and Perception
Senstation and Perception
Subodh Sharma
 

What's hot (20)

Disorders of perception (2)
Disorders of perception (2)Disorders of perception (2)
Disorders of perception (2)
 
Disorders of perception
Disorders of perceptionDisorders of perception
Disorders of perception
 
Abnormal perception
Abnormal perceptionAbnormal perception
Abnormal perception
 
Optical illusion
Optical illusionOptical illusion
Optical illusion
 
Perceptual abnormalities
Perceptual abnormalitiesPerceptual abnormalities
Perceptual abnormalities
 
ILLUSION
ILLUSION ILLUSION
ILLUSION
 
What is Hypnosis?
What is Hypnosis?What is Hypnosis?
What is Hypnosis?
 
Disorders Of Perception
Disorders Of PerceptionDisorders Of Perception
Disorders Of Perception
 
Presentation optical illusions.
Presentation optical illusions. Presentation optical illusions.
Presentation optical illusions.
 
Illusion with excercises!
Illusion with excercises!Illusion with excercises!
Illusion with excercises!
 
Optical illusions
Optical illusionsOptical illusions
Optical illusions
 
Thought disorders 1 dr. arpit
Thought disorders 1   dr. arpitThought disorders 1   dr. arpit
Thought disorders 1 dr. arpit
 
Hypnotic Storytelling
Hypnotic StorytellingHypnotic Storytelling
Hypnotic Storytelling
 
Disorders of thought
Disorders of thoughtDisorders of thought
Disorders of thought
 
Final Illusion^^Phanish
Final Illusion^^PhanishFinal Illusion^^Phanish
Final Illusion^^Phanish
 
Visual illusions
Visual illusionsVisual illusions
Visual illusions
 
Dreams
DreamsDreams
Dreams
 
Psychology: Dreaming. by Janice Fung.
Psychology: Dreaming. by Janice Fung.Psychology: Dreaming. by Janice Fung.
Psychology: Dreaming. by Janice Fung.
 
Stepping into Coherence
Stepping into CoherenceStepping into Coherence
Stepping into Coherence
 
Senstation and Perception
 Senstation and Perception Senstation and Perception
Senstation and Perception
 

Viewers also liked

Optical Illusions By Saina
Optical Illusions By SainaOptical Illusions By Saina
Optical Illusions By Sainamswilsonri2
 
Optical illusions
Optical illusions Optical illusions
Optical illusions pantsleg
 
Can you trust what you see? The magic of visual perception
Can you trust what you see? The magic of visual perceptionCan you trust what you see? The magic of visual perception
Can you trust what you see? The magic of visual perception
Förderverein Technische Fakultät
 
Optical illusion project
Optical illusion projectOptical illusion project
Optical illusion project
hcps-pateld1
 
optical illusions
optical illusionsoptical illusions
optical illusions
Feto_10531
 
Optical illusion compilation
Optical illusion compilationOptical illusion compilation
Optical illusion compilation
tiben26
 
Light
LightLight

Viewers also liked (10)

science sympossium
science sympossiumscience sympossium
science sympossium
 
Optical Illusions By Saina
Optical Illusions By SainaOptical Illusions By Saina
Optical Illusions By Saina
 
Optical illusions
Optical illusions Optical illusions
Optical illusions
 
Can you trust what you see? The magic of visual perception
Can you trust what you see? The magic of visual perceptionCan you trust what you see? The magic of visual perception
Can you trust what you see? The magic of visual perception
 
Op art intro
Op art introOp art intro
Op art intro
 
Physics form 4 chapter 5
Physics form 4 chapter 5Physics form 4 chapter 5
Physics form 4 chapter 5
 
Optical illusion project
Optical illusion projectOptical illusion project
Optical illusion project
 
optical illusions
optical illusionsoptical illusions
optical illusions
 
Optical illusion compilation
Optical illusion compilationOptical illusion compilation
Optical illusion compilation
 
Light
LightLight
Light
 

Similar to Optical illusions

Optical Illusions
Optical IllusionsOptical Illusions
Optical Illusionskickerboy
 
Perception
PerceptionPerception
Perception
Leena Shingavi
 
Terminologies of psychiatry
Terminologies of psychiatryTerminologies of psychiatry
Terminologies of psychiatry
Bonsy Scaria
 
Terminology in psychiatry
Terminology in psychiatryTerminology in psychiatry
Terminology in psychiatry
GIAS UDDIN
 
Disorder of Perception - 2.pptx
Disorder of Perception - 2.pptxDisorder of Perception - 2.pptx
Disorder of Perception - 2.pptx
RobinBaghla
 
Concept of hallucination.pptx
Concept of hallucination.pptxConcept of hallucination.pptx
Concept of hallucination.pptx
rashaabouelmagd1
 
Illusion and hallucination
Illusion and hallucinationIllusion and hallucination
Illusion and hallucination
Sushma Rathee
 
disorders of perception
disorders of perceptiondisorders of perception
disorders of perception
RuchiMittal34
 
Hallucinations_-dr Hareesh Krishnan
Hallucinations_-dr Hareesh KrishnanHallucinations_-dr Hareesh Krishnan
Hallucinations_-dr Hareesh KrishnanHareesh R
 
Lucid dreams
Lucid dreamsLucid dreams
Lucid dreams
Saalini Vellivel
 
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptxSYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
Happychifunda
 
Psychopathologynew.pptx
Psychopathologynew.pptxPsychopathologynew.pptx
Psychopathologynew.pptx
Zelekewoldeyohannes
 
B.perception 12feb,13
B.perception 12feb,13B.perception 12feb,13
B.perception 12feb,13
DR.SOUMITRA DAS
 
Forensic psychology- psychological disorders
Forensic psychology-  psychological disordersForensic psychology-  psychological disorders
Forensic psychology- psychological disorders
RavinderKaur194
 
Disorders of perception
Disorders of perceptionDisorders of perception
Disorders of perception
Nidhil Narayanan
 
Forensic Psychiatry
Forensic Psychiatry  Forensic Psychiatry
Forensic Psychiatry
Dr Arman Hossain
 
CLINICAL PSYCHOPATHOLOGY.pptx
CLINICAL PSYCHOPATHOLOGY.pptxCLINICAL PSYCHOPATHOLOGY.pptx
CLINICAL PSYCHOPATHOLOGY.pptx
Douye1
 
Hallucination Psychopayhology, Disorder .pptx
Hallucination Psychopayhology, Disorder .pptxHallucination Psychopayhology, Disorder .pptx
Hallucination Psychopayhology, Disorder .pptx
Psyvijaylal
 
Mental Illness: The Myths vs The Realities
Mental Illness: The Myths vs The RealitiesMental Illness: The Myths vs The Realities
Mental Illness: The Myths vs The Realities
ZCLoki
 
DISORDERS OF THOUGHT self.pptx
DISORDERS OF THOUGHT self.pptxDISORDERS OF THOUGHT self.pptx
DISORDERS OF THOUGHT self.pptx
RobinBaghla
 

Similar to Optical illusions (20)

Optical Illusions
Optical IllusionsOptical Illusions
Optical Illusions
 
Perception
PerceptionPerception
Perception
 
Terminologies of psychiatry
Terminologies of psychiatryTerminologies of psychiatry
Terminologies of psychiatry
 
Terminology in psychiatry
Terminology in psychiatryTerminology in psychiatry
Terminology in psychiatry
 
Disorder of Perception - 2.pptx
Disorder of Perception - 2.pptxDisorder of Perception - 2.pptx
Disorder of Perception - 2.pptx
 
Concept of hallucination.pptx
Concept of hallucination.pptxConcept of hallucination.pptx
Concept of hallucination.pptx
 
Illusion and hallucination
Illusion and hallucinationIllusion and hallucination
Illusion and hallucination
 
disorders of perception
disorders of perceptiondisorders of perception
disorders of perception
 
Hallucinations_-dr Hareesh Krishnan
Hallucinations_-dr Hareesh KrishnanHallucinations_-dr Hareesh Krishnan
Hallucinations_-dr Hareesh Krishnan
 
Lucid dreams
Lucid dreamsLucid dreams
Lucid dreams
 
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptxSYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
SYMPTOMATOLOGY IN PSYCHIATRY ILLNESS.pptx
 
Psychopathologynew.pptx
Psychopathologynew.pptxPsychopathologynew.pptx
Psychopathologynew.pptx
 
B.perception 12feb,13
B.perception 12feb,13B.perception 12feb,13
B.perception 12feb,13
 
Forensic psychology- psychological disorders
Forensic psychology-  psychological disordersForensic psychology-  psychological disorders
Forensic psychology- psychological disorders
 
Disorders of perception
Disorders of perceptionDisorders of perception
Disorders of perception
 
Forensic Psychiatry
Forensic Psychiatry  Forensic Psychiatry
Forensic Psychiatry
 
CLINICAL PSYCHOPATHOLOGY.pptx
CLINICAL PSYCHOPATHOLOGY.pptxCLINICAL PSYCHOPATHOLOGY.pptx
CLINICAL PSYCHOPATHOLOGY.pptx
 
Hallucination Psychopayhology, Disorder .pptx
Hallucination Psychopayhology, Disorder .pptxHallucination Psychopayhology, Disorder .pptx
Hallucination Psychopayhology, Disorder .pptx
 
Mental Illness: The Myths vs The Realities
Mental Illness: The Myths vs The RealitiesMental Illness: The Myths vs The Realities
Mental Illness: The Myths vs The Realities
 
DISORDERS OF THOUGHT self.pptx
DISORDERS OF THOUGHT self.pptxDISORDERS OF THOUGHT self.pptx
DISORDERS OF THOUGHT self.pptx
 

Recently uploaded

Improving profitability for small business
Improving profitability for small businessImproving profitability for small business
Improving profitability for small business
Ben Wann
 
ikea_woodgreen_petscharity_dog-alogue_digital.pdf
ikea_woodgreen_petscharity_dog-alogue_digital.pdfikea_woodgreen_petscharity_dog-alogue_digital.pdf
ikea_woodgreen_petscharity_dog-alogue_digital.pdf
agatadrynko
 
What is the TDS Return Filing Due Date for FY 2024-25.pdf
What is the TDS Return Filing Due Date for FY 2024-25.pdfWhat is the TDS Return Filing Due Date for FY 2024-25.pdf
What is the TDS Return Filing Due Date for FY 2024-25.pdf
seoforlegalpillers
 
FINAL PRESENTATION.pptx12143241324134134
FINAL PRESENTATION.pptx12143241324134134FINAL PRESENTATION.pptx12143241324134134
FINAL PRESENTATION.pptx12143241324134134
LR1709MUSIC
 
falcon-invoice-discounting-a-premier-platform-for-investors-in-india
falcon-invoice-discounting-a-premier-platform-for-investors-in-indiafalcon-invoice-discounting-a-premier-platform-for-investors-in-india
falcon-invoice-discounting-a-premier-platform-for-investors-in-india
Falcon Invoice Discounting
 
The key differences between the MDR and IVDR in the EU
The key differences between the MDR and IVDR in the EUThe key differences between the MDR and IVDR in the EU
The key differences between the MDR and IVDR in the EU
Allensmith572606
 
Set off and carry forward of losses and assessment of individuals.pptx
Set off and carry forward of losses and assessment of individuals.pptxSet off and carry forward of losses and assessment of individuals.pptx
Set off and carry forward of losses and assessment of individuals.pptx
HARSHITHV26
 
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdfMeas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
dylandmeas
 
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdfModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
fisherameliaisabella
 
Business Valuation Principles for Entrepreneurs
Business Valuation Principles for EntrepreneursBusiness Valuation Principles for Entrepreneurs
Business Valuation Principles for Entrepreneurs
Ben Wann
 
-- June 2024 is National Volunteer Month --
-- June 2024 is National Volunteer Month ---- June 2024 is National Volunteer Month --
-- June 2024 is National Volunteer Month --
NZSG
 
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Lviv Startup Club
 
The Influence of Marketing Strategy and Market Competition on Business Perfor...
The Influence of Marketing Strategy and Market Competition on Business Perfor...The Influence of Marketing Strategy and Market Competition on Business Perfor...
The Influence of Marketing Strategy and Market Competition on Business Perfor...
Adam Smith
 
Buy Verified PayPal Account | Buy Google 5 Star Reviews
Buy Verified PayPal Account | Buy Google 5 Star ReviewsBuy Verified PayPal Account | Buy Google 5 Star Reviews
Buy Verified PayPal Account | Buy Google 5 Star Reviews
usawebmarket
 
Cracking the Workplace Discipline Code Main.pptx
Cracking the Workplace Discipline Code Main.pptxCracking the Workplace Discipline Code Main.pptx
Cracking the Workplace Discipline Code Main.pptx
Workforce Group
 
CADAVER AS OUR FIRST TEACHER anatomt in your.pptx
CADAVER AS OUR FIRST TEACHER anatomt in your.pptxCADAVER AS OUR FIRST TEACHER anatomt in your.pptx
CADAVER AS OUR FIRST TEACHER anatomt in your.pptx
fakeloginn69
 
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
BBPMedia1
 
The Parable of the Pipeline a book every new businessman or business student ...
The Parable of the Pipeline a book every new businessman or business student ...The Parable of the Pipeline a book every new businessman or business student ...
The Parable of the Pipeline a book every new businessman or business student ...
awaisafdar
 
Digital Transformation and IT Strategy Toolkit and Templates
Digital Transformation and IT Strategy Toolkit and TemplatesDigital Transformation and IT Strategy Toolkit and Templates
Digital Transformation and IT Strategy Toolkit and Templates
Aurelien Domont, MBA
 
Enterprise Excellence is Inclusive Excellence.pdf
Enterprise Excellence is Inclusive Excellence.pdfEnterprise Excellence is Inclusive Excellence.pdf
Enterprise Excellence is Inclusive Excellence.pdf
KaiNexus
 

Recently uploaded (20)

Improving profitability for small business
Improving profitability for small businessImproving profitability for small business
Improving profitability for small business
 
ikea_woodgreen_petscharity_dog-alogue_digital.pdf
ikea_woodgreen_petscharity_dog-alogue_digital.pdfikea_woodgreen_petscharity_dog-alogue_digital.pdf
ikea_woodgreen_petscharity_dog-alogue_digital.pdf
 
What is the TDS Return Filing Due Date for FY 2024-25.pdf
What is the TDS Return Filing Due Date for FY 2024-25.pdfWhat is the TDS Return Filing Due Date for FY 2024-25.pdf
What is the TDS Return Filing Due Date for FY 2024-25.pdf
 
FINAL PRESENTATION.pptx12143241324134134
FINAL PRESENTATION.pptx12143241324134134FINAL PRESENTATION.pptx12143241324134134
FINAL PRESENTATION.pptx12143241324134134
 
falcon-invoice-discounting-a-premier-platform-for-investors-in-india
falcon-invoice-discounting-a-premier-platform-for-investors-in-indiafalcon-invoice-discounting-a-premier-platform-for-investors-in-india
falcon-invoice-discounting-a-premier-platform-for-investors-in-india
 
The key differences between the MDR and IVDR in the EU
The key differences between the MDR and IVDR in the EUThe key differences between the MDR and IVDR in the EU
The key differences between the MDR and IVDR in the EU
 
Set off and carry forward of losses and assessment of individuals.pptx
Set off and carry forward of losses and assessment of individuals.pptxSet off and carry forward of losses and assessment of individuals.pptx
Set off and carry forward of losses and assessment of individuals.pptx
 
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdfMeas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
Meas_Dylan_DMBS_PB1_2024-05XX_Revised.pdf
 
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdfModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
ModelingMarketingStrategiesMKS.CollumbiaUniversitypdf
 
Business Valuation Principles for Entrepreneurs
Business Valuation Principles for EntrepreneursBusiness Valuation Principles for Entrepreneurs
Business Valuation Principles for Entrepreneurs
 
-- June 2024 is National Volunteer Month --
-- June 2024 is National Volunteer Month ---- June 2024 is National Volunteer Month --
-- June 2024 is National Volunteer Month --
 
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
Evgen Osmak: Methods of key project parameters estimation: from the shaman-in...
 
The Influence of Marketing Strategy and Market Competition on Business Perfor...
The Influence of Marketing Strategy and Market Competition on Business Perfor...The Influence of Marketing Strategy and Market Competition on Business Perfor...
The Influence of Marketing Strategy and Market Competition on Business Perfor...
 
Buy Verified PayPal Account | Buy Google 5 Star Reviews
Buy Verified PayPal Account | Buy Google 5 Star ReviewsBuy Verified PayPal Account | Buy Google 5 Star Reviews
Buy Verified PayPal Account | Buy Google 5 Star Reviews
 
Cracking the Workplace Discipline Code Main.pptx
Cracking the Workplace Discipline Code Main.pptxCracking the Workplace Discipline Code Main.pptx
Cracking the Workplace Discipline Code Main.pptx
 
CADAVER AS OUR FIRST TEACHER anatomt in your.pptx
CADAVER AS OUR FIRST TEACHER anatomt in your.pptxCADAVER AS OUR FIRST TEACHER anatomt in your.pptx
CADAVER AS OUR FIRST TEACHER anatomt in your.pptx
 
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...
 
The Parable of the Pipeline a book every new businessman or business student ...
The Parable of the Pipeline a book every new businessman or business student ...The Parable of the Pipeline a book every new businessman or business student ...
The Parable of the Pipeline a book every new businessman or business student ...
 
Digital Transformation and IT Strategy Toolkit and Templates
Digital Transformation and IT Strategy Toolkit and TemplatesDigital Transformation and IT Strategy Toolkit and Templates
Digital Transformation and IT Strategy Toolkit and Templates
 
Enterprise Excellence is Inclusive Excellence.pdf
Enterprise Excellence is Inclusive Excellence.pdfEnterprise Excellence is Inclusive Excellence.pdf
Enterprise Excellence is Inclusive Excellence.pdf
 

Optical illusions

  • 1. Optical Illusions By Miguel Cortinas and Ryan Longo
  • 2. Main Objective • Explain the idea of optical illusions and their cause.
  • 3. Introduction to Optical Illusions • • • Optical Illusion- (visual illusion) caused by visually perceived images that differ from reality. The information gathered by the eye is processed in the brain to give a perception that does not match up with the physical measurement of the stimulus source. Three main types: Literal, Physiological, and Cognitive.
  • 4. Literal Illusions • • Literal optical illusions are images that differ from the objects that create them. Artists may use objects such as fruit or foliage to create a portraiture or scenery.
  • 5. Physiological Illusions • • Physiological illusions are the effects on the eyes and brain of excessive stimulation of a specific type. Artists may use color or movement to confuse the viewers' eyes and brains.
  • 6. Cognitive Illusions • • • Cognitive illusions are where the eye and brain make unconscious inferences. They can also be known as "mind games". Perspective and color heavily influence this genre.
  • 7. Idea of Optical Illusions • • • When we witness an illusion, we perceive something that does not correspond to what is actually out there—what exists in the real world. Illusions fool us! They convince us of things that are not true. Dictionary definitions of illusion usually state that an illusion is a sensory perception that causes a false or distorted impression, or a misrepresentation of a "real" sensory stimulus.
  • 8. Don’t Believe Your Eyes • • • Illusions are misperceptions that are perceived by most people, and are based on a specific stimulus received under certain conditions. Some experiments with animals indicate that several species of mammals and birds are "fooled" by illusions in much the same way we are. Illusions are different from both hallucinations and delusions.
  • 9. Illusions • • • • Illusion is a kind of wrong perception. In illusion, an external stimulus is always present. In other words, illusions are caused by external stimulations. Illusion is almost universal. The same situation arouses the same type of illusion in most people.
  • 10. Hallucinations • • • • • Hallucination is a false perception. In hallucinations, no external stimulus is present. Hallucinations are caused by internal stimulations. A hallucination is seeing, hearing, tasting, smelling or feeling things that do not really exist. Certain drugs can cause hallucinations. Certain mental illnesses can also cause hallucinations. People who have hallucinations are not necessarily ill, lack of sleep can also cause hallucinations. People who have hallucinations are not necessarily ill, lack of sleep can also cause hallucinations. Hallucinations just before going to sleep or just after waking up are considered normal.
  • 11.
  • 12. Examples This just looks like a normal triangle right? But where does it end? At first look this cube looks fine, but look at the center stem.
  • 13. Is It A Rabbit or A Duck??
  • 14. Evaluation Questions 1. What is an optical illusion? 2. What are the causes of optical illusions? 3. What are the 3 types of illusions? 4. How do optical illusions differ from hallucinations and delusions?
  • 16. Bibliography • • • Block, J. (n.d.). What is an Illusion?.sandlotscience.com. Retrieved October 29, 2013, from http://www.sandlotscience.com/EyeonIllusions/whatisanillusion.htm Nierenberg, C. (n.d.). Optical Illusions: When Your Brain Can't Believe Your Eyes. ABC News. Retrieved October 29, 2013, from http://abcnews.go.com/Health/EyeHealth/optical-illusions-eye-brainagree/story?id=8455573 Nin, A. (n.d.). Causes of Optical Illusions.buzzle.com. Retrieved October 29, 2013, from http://www.buzzle.com/articles/causes-of-opticalillusions.html