[x]
Create

Here is what users have to say about Optical Illusions

useravatar
Entry added by CWAnswers Join us and contribute your knowledge as well.
Comment
Share this
Share with a friend: optical illusions
Your name
Your email
Recipient Email

Grey%20square%20optical%20illusion.PNG

This article is about visual perception. See Optical Illusion (Album) for information about the Time Requiem album.

Welcome to CWAnswers

CWAnswers is your guide to the sprawling world wide web. The directory aims to provide a useful guide made by users. You can share your knowledge as well - simply sign up and edit your first entry. For questions just contact the team at support - at - cwanswers.com.

Weblinks for Optical Illusions

Top 10 for Optical Illusions

Things about Optical Illusions you find nowhere else.

Select content modules

Comments about Optical Illusions

Please leave your comment using the comment button above the article
Share with a friend: optical illusions
Your name
Your email
Recipient Email

Images found for Optical Illusions

Optical Illusions 1Optical Illusions 2Optical Illusions 3
Optical Illusions 4Optical Illusions 5Optical Illusions 6
Optical Illusions 7Optical Illusions 8Optical Illusions 9

Blogs for Optical Illusions

Optical Illusions Etc...

... various forms of optical illusions with explanations, including illusions conveyed through fractals, ... the optical illusions on this blog may cause ...illusionsetc.blogspot.com/

Mighty Optical Illusions

Community blog dedicated to visual phenomena and real life illusions.www.moillusions.com/

Optical Illusions blog enjoy your tricky mind. - Optical illusions ...

Optical illusions, visual illusions, mind illusions all in one place. ... © 2007 Optical Illusions blog enjoy your tricky mind. - StudioPress Theme ...www.illusionsblog.com/

Optical Illusions Etc...: Recursive News Optical Illusion

Some of the optical illusions on this blog may cause dizziness or possibly epileptic seizures. ... This Blog. Optical Illusions Store. Optical Illusion Poster ...illusionsetc.blogspot.com/2005/10/recursive-news-optical-ill...

Cool Optical Illusions Blog

Cool Optical Illusions blog. Fun optical illusions from around the world. ... Well, it was about time for a cool optical illusions blog, so I finally did it. ...www.coolopticalillusions.com/blog/page/3/

Wikipedia About Optical Illusions

Grey%20square%20optical%20illusion.PNG

This article is about visual perception. See Optical Illusion (Album) for information about the Time Requiem album.

An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed and the brain to give a percept that does not tally with a physical measurement of the stimulus source. There are three main types of illusion - literal optical illusions that create images that are different from the objects that make them, physiological illusions that are the effects on the eyes and brain of excessive stimulation of a specific type - brightness, tilt, color, movement, and cognitive illusions where the eye and brain make unconscious inferences.

Physiological illusions

Physiological illusions, such as the afterimages following bright lights or adapting stimuli of excessively longer alternating patterns (contingent perceptual aftereffect), are presumed to be the effects on the eyes or brain of excessive stimulation of a specific type - brightness, tilt, color, movement, etc. The theory is that stimuli have individual dedicated neural paths in the early stages of visual processing, and that repetitive stimulation of only one or a few channels causes a physiological imbalance that alters perception.

The Hermann grid illusion and Mach bands are two illusions that are best explained using a biological approach. Lateral inhibition, where in the receptive field of the retina light and dark receptors compete with one another to become active, has been used to explain why we see bands of increased brightness at the edge of a color difference when viewing Mach bands. Once a receptor is active it inhibits adjacent receptors. This inhibition creates contrast, highlighting edges. In the Hermann grid illusion the grey spots appear at the intersection because of the inhibitory response which occurs as a result of the increased dark surround. Lateral inhibition has also been used to explain the Hermann grid illusion, but this has been disproved.

Cognitive illusions

Cognitive illusions are assumed to arise by interaction with assumptions about the world, leading to "unconscious inferences", an idea first suggested in the 19th century by Hermann Helmholtz. Cognitive illusions are commonly divided into ambiguous illusions, distorting illusions, paradox illusions, or fiction illusions.

  1. Ambiguous illusions are pictures or objects that elicit a perceptual 'switch' between the alternative interpretations. The Necker cube is a well known example; another instance is the Rubin vase.
  2. Distorting illusions are characterized by distortions of size, length, or curvature. A striking example is the Café wall illusion. Another example is the famous Müller-Lyer illusion.
  3. Paradox illusions are generated by objects that are paradoxical or impossible, such as the Penrose triangle or impossible staircases seen, for example, in M. C. Escher's Ascending and Descending and Waterfall. The triangle is an illusion dependent on a cognitive misunderstanding that adjacent edges must join.
  4. Fictional illusions are defined as the perception of objects that are genuinely not there to all but a single observer, such as those induced by schizophrenia or a hallucinogen. These are more properly called hallucinations.

Search results for Optical Illusions

optical illusion: Definition from Answers.com

optical illusion n. A visually perceived image that is deceptive or misleading. ... Artists have worked with optical illusions, including M. C. Escher, Bridget ...www.answers.com/topic/optical-illusion

BrainBashers : Optical Illusions

Optical illusions and other visual oddities. ... Spiral illusion. Light bulb afterglow. Coloured afterglow. Flag afterglow. Grey diagonal? ...www.brainbashers.com/opticalillusions.asp

Optical illusion images, pictures, tutorials and information

Illusion pictures, information on optical illusions and tutorials on visual illusions. ... Mini images for your site, Optical Illusions having No Comments " ...www.opticalillusion.net/

Free Optical Illusions Website

Our free optical illusion website has over 140 fun visual illusions that will ... We also have an optical illusions quiz page where you can find out just how ...www.illusion-optical.com/

Optical Illusions Etc...

A collection of various forms of optical illusions with explanations, including illusions conveyed through fractals, architecture, art, advertising and real life ...illusionsetc.blogspot.com/

Images found for Optical Illusions

Optical Illusions 1Optical Illusions 2Optical Illusions 3
Optical Illusions 4Optical Illusions 5Optical Illusions 6
Optical Illusions 7Optical Illusions 8Optical Illusions 9

News about Optical Illusions

eChalk: optical illusions

Times Education SupplementAn outstanding library of mind-boggling illusions and astounding optical effects designed specifically for teachers with data projectors and interactive whiteboards. Ideal for a five minute diversion in a particularly long lesson. Probably the best optical illusions in the world.http://www.tes.co.uk/article.aspx?storycode=6012899

Rooftop Films Sets Summer Series

indieWIRERooftop Films has announced the May and June portion of its 2009 Summer Series, dubbed their “13th year of Underground Movies Outdoors,” which will run every weekend from May 15-September 20 in New York City.http://www.indiewire.com/article/rooftop_films_sets_summer_s...

South Africa: Provincial Carve-Up a Stale Leftover From a Bygone Political Era

AllAfrica.comJohannesburg — MAYBE now they have lost the Western Cape and there are ructions about the appointment of premiers, the African National Congress (ANC) will wake up to the absurdity of provincial governments.http://allafrica.com/stories/200905070134.html

Briefs

Bluffton TodayThePalmetto Quilt Guildwill meetatthe Christ Lutheran Church,829 William Hilton Parkway,Hilton Head,at1p.m. May21todiscuss the“worldof opticalillusiontechniques in quilting.” Asocialmeeting will begin at 12:30, with speakerKaren Combs’ presentation starting at 1.http://www.npaper-wehaa.com/bluffton-today;see-70TrEey3eN1gu...

The Digitalia Collection

InDesignThe ‘Digitalia’ Collection has been designed by Karim Rashid for ABET LAMINATI. The new collection of 28 digitally printed décors complement ABET’s already extensive range of unique decorative High Pressure Laminate.http://www.indesignlive.com/articles/tv/the-digitalia-collec...

News about Optical Illusions

Dali, Vegetable Portraits Play Visual Tricks in Paris Exhibit

BloombergIt’s all about optical illusions and hidden meanings. Optical illusions are, of course, what representational paintings are about: They deceive the eye into taking for three- dimensional reality what is only a wafer-thin coat of colors. That ... http://www.bloomberg.com/apps/news?pid=20601088&sid=ajFNlLlw...

The roots of religious extremism

Evansville Courier-PressEver since the 9-11 terrorist attacks, I've wrestled with the mindset that would commit such violence. So I was in the audience when Dr. Dick Hamilton returned to Evansville to speak at Trinity United Methodist Church on "Extremism in Christianity ... http://www.courierpress.com/news/2009/apr/22/the-roots-of-re...

Their journey stops short

Boston GlobeA dance for three couples and six vinyl panels, it interspersed optical illusions with sinewy duets with, disturbingly, a tinge of misogyny at their core. Heads, arms, and feet jutted out, elongated, or were sucked back behind the panels. Carolina ... http://www.boston.com/ae/theater_arts/articles/2009/04/17/th...

Twists of the trade - Artist’s woven baskets not your grandmother ...

MissoulianThe weavings turn upon themselves like Mobius strips: optical illusions you can hold in your palm. “I actually graduated with honors with a degree in basketry from the University of Tennessee,” Dyer said. “I studied almost everything I wanted to ... http://www.missoulian.com/articles/2009/04/17/territory/ter1...

Potential Bidders Tour Tavern on the Green

New York Times ... the eccentric art collection, which includes oils, deer statues, burnished copper sculptures, as well as faux Tiffany windows, planters groaning with tulips, floral rugs, floral chairs and mirrored doors and walls that create quirky optical illusions ... http://www.nytimes.com/2009/04/15/nyregion/15tavern.html?em

Search results for Optical Illusions

Optical Illusions - Free Picture Illusions

Archive of optical illusions and weird illusions to challenge your mind. Many of these optical illusions can boggle anyone.http://www.123opticalillusions.com/

Optical Illusions | Optical Illusions Pictures

Prepare to be amazed….no really. ... Wee Planets by Alexandre Duret-Lutz. This series is created by a French photographer called Alexandre Duret-Lutz, he has coined the type of ... http://o.pticalillusions.com/

Optical illusion - Wikipedia, the free encyclopedia

There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and ... http://en.wikipedia.org/wiki/Optical_illusion

Optical Illusions

What’s the missing word? Go figure it out. Get right up next to the screen. See anything? Now back up. NOW do you see anything? This optical illusion was submitted by MMM.http://www.newopticalillusions.com/

Optical Illusions

The largest collection of optical illusions pictures on the planet, new illusions every dayhttp://opticalillusions.net

Wikipedia results for Optical Illusions

Optical illusion - Wikipedia, the free encyclopedia

There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and ... http://en.wikipedia.org/wiki/Optical_illusion

Category:Optical illusions - Wikipedia, the free encyclopedia

An optical illusion is any illusion that deceives the human visual system into perceiving something that is not present or incorrectly perceiving what is present.http://en.wikipedia.org/wiki/Category:Optical_illusions

Illusion - Wikipedia, the free encyclopedia

An illusion is a distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation. While illusions distort reality, they are generally shared ... http://en.wikipedia.org/wiki/Illusion

Illusion (disambiguation) - Wikipedia, the free encyclopedia

An illusion is an error in perception such as an optical illusion or auditory illusion. Illusion or Illusions may also refer to: Illusion (2007 film), a spiritual cinema film featuring ... http://en.wikipedia.org/wiki/Illusions

Stereogram - Wikipedia, the free encyclopedia

... to believe that the word stereogram is synonymous to autostereogram. [3] Salvador Dalí created some impressive stereograms in his exploration in a variety of optical illusions.http://en.wikipedia.org/wiki/Stereogram
  • Recent
  • Mine
  • Watched
  • Commented
You must be logged in to perform this operation
You must be logged in to perform this operation

Search this site

Videos found for Illusions

10 optical illusions in 2 minutes

10 optical illusions in 2 minutesSamsung presents 10 optical illusions in 2 minutes to promote the new SOUL mobile phone.Flash - Video

Wire Illusion

Wire IllusionClick here to watch the videoVideo - Video

Learning optical illusions with Whi...

Learning optical illusions with Whitest Boy AliveThis is a fun way of learning what an optical illusion is, with clear examples and good music in the background ;)Flash - Video

Illusions from Bill Nye

Illusions from Bill NyeThis is the "Way Cool Scientist" section of Bill Nye The Science Guy: The Brain episode. Pretty neat. They work very well.Flash - Video

Anti-Gravity Mystery Illusion!

Anti-Gravity Mystery Illusion!How do you make an object suddenly appear to defy gravity? I'll show you! No camera tricks. Ranked 3.62 / 5 | 1,231 views | 11 comments Click here to watch the item Submitted By:...Flash - Video

Answers for Optical Illusions

crazy_frog462Optical Illusions?crazy_frog462Here are I few that I think will work, hope this helps a lot! ~Nicole http://lovethosekids.com/illusions/terrace.jpg http://www.freevisiontest.com/images/tests/illusions6.gif http://funschool.kaboo...PlayasChangeButGameStaysTheSameWhat topics in a speech about optical illusions?PlayasChangeButGameStaysTheSameI would approach this topic from a slightly different angle. It is fairly easy (but still interesting) to search the web and show many different types of illusions. What is more unusual is to explai...sheknows94What parts of the brain causes us to see optical illusions?sheknows94well, the visual cortex is the main section of the brain that processess all visual info. our brain processes info using certain rules, like we recognize basic shapes like straight lines -- == __ et...^________^Can images that you see everyday be seen as optical illusions?^________^Yeah, sometimes.Alexis LCan you tell me everything you know about optical illusions? How and why do they happen?Alexis LIt's all about your brain messing with the signals you receive through your eyes. Check out the link for thousands of really interesting examples of different kinds of illusions. Lots of examples fo...
Contact Us[X]
Your name
Email
Subject
Your comment
[X]