Оптичке варке и илузије

[Милан Меденица :)]

eeeeeeeee!

??????? ??? ?????, ?????? ?????? ?? ???? ?????????? ?? ?????????? ...

opa!!!

Tavita naisla na misolovku?

pa fino drugari

????????? ??, ????????? ??? ?? ?? ????????  dada

[Тавита]

eeeeeeeee!

??????? ??? ?????, ?????? ?????? ?? ???? ?????????? ?? ?????????? ... dada

opa!!!

Tavita naisla na misolovku?

pa fino drugari

????????? ??, ????????? ??? ?? ?? ????????  dada

?? ?????  :smiley:

????? ?? ????,?? ???? 

[Guest Izida]

[Милан Меденица :)]

Господ Исус Христос, довољно дуго гледајте у слику,  око минут и брзо скрените погледа на белу површину.

ова девојка се мени врти обично у смеру казаљке на сату. мада сам научио и да променим смер, а ви?

мозголомка

горе? не, не доле!

споља или изнутра?

пронађите скривену реч, на енглеском је.

штрафте или слика?

мени моја ме глава боли јако!

нагнута, нагнуто још, скроз коса? не, не, све три исте!

[Guest ага пије млеко]

мени је ова девојка што се окреће многа јака ствар....

[зеленизуб]

поздрав чика сербону

[зеленизуб]

Incredible Visual Illusions

Publisher: Arcturus Publishing, Ltd | 2006 | 256 Pages | ISBN: 1841931977 | PDF | 34.77 MB

Incredible Visual Illusions is the most comprehensive and amazing collection of optical illusions ever assembled, with close to three hundred different illusions, many of which have never before been published. You will be amazed as images flash and scintillate before your eyes, other images disappear right before your eyes, other images disappear right in front of your eyes, size and shape lose their meaning, and you see motion where there is no motion. The variety of different effects is almost endless, and many appear for the first time in this volume.

http://hotfile.com/dl/11763793/4f44e68/Incredible_Visual_Illusions.pdf.html

http://rapidshare.com/files/68116083/Incredible_Visual_Illusions.zip

[Милан Меденица :)]

???? ?? ??? ??????? ??? ?? ?????? ????? ???? ?????....

??? ?? ????? ?? ????? ???????? ??? ?? ????????? ?? ??????

? ?????? ?? ??????  0202_238

[bilja]

A koja je fora sa ovom djevojkom, ja gledam vec duze vrijeme i nista... Uvjek u istom smjeru...

[bilja]

Aaaaaaaaaaaaa, ludilo, kad gledam u sjenku!  0102_laugh

[Милан Меденица :)]

Aaaaaaaaaaaaa, ludilo, kad gledam u sjenku!  indijanac

???? ?? ???????? ?? ????????? ? ?????? ?????? ? ??????? ?? ?? ????? ???? ...

? ???? ?? ?? ? ???????? ??? ???????? ????? ??? ????? ...

?????? ??????? ??????? ??????? ??????? ????? ??????? ...

[bilja]

Aaaaaaaaaaaaa, ludilo, kad gledam u sjenku! 

???? ?? ???????? ?? ????????? ? ?????? ?????? ? ??????? ?? ?? ????? ???? ...

? ???? ?? ?? ? ???????? ??? ???????? ????? ??? ????? ...

?????? ??????? ??????? ??????? ??????? ????? ??????? ...

Ne znam bas da iskoristim osjecanje ovdje...  crvenilo

A u treptaju oka mi moze samo ispasti socivo!  indijanac

indijanac

[Милан Меденица :)]

Aaaaaaaaaaaaa, ludilo, kad gledam u sjenku!  klapklap

???? ?? ???????? ?? ????????? ? ?????? ?????? ? ??????? ?? ?? ????? ???? ...

? ???? ?? ?? ? ???????? ??? ???????? ????? ??? ????? ...

?????? ??????? ??????? ??????? ??????? ????? ??????? ...

Ne znam bas da iskoristim osjecanje ovdje...  crvenilo

A u treptaju oka mi moze samo ispasti socivo!  0202_238

?? ????????, ???? ???? ????? ?? ?? ?????????  0203_cool

[зеленизуб]

Behavioral/Systems/Cognitive

Neural Basis for a Powerful Static Motion Illusion

Bevil R. Conway,1,5 Akiyoshi Kitaoka,2 Arash Yazdanbakhsh,1,3 Christopher C. Pack,4 and Margaret S. Livingstone1

1Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, 2Department of Psychology, Ritsumeikan University, Kita-ku, Kyoto 603-8577, Japan, 3Cognitive and Neural Systems Department, Boston University, Boston, Massachusetts 02215, 4Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada H3A 2B4, and 5Harvard Society of Fellows, Harvard University, Cambridge, Massachusetts 02138

Most people see movement in Figure 1, although the image is static. Motion is seen from black -> blue -> white -> yellow -> black. Many hypotheses for the illusory motion have been proposed, although none have been tested physiologically. We found that the illusion works well even if it is achromatic: yellow is replaced with light gray, and blue is replaced with dark gray. We show that the critical feature for inducing illusory motion is the luminance relationship of the static elements. Illusory motion is seen from black -> dark gray -> white -> light gray -> black. In psychophysical experiments, we found that all four pairs of adjacent elements when presented alone each produced illusory motion consistent with the original illusion, a result not expected from any current models. We also show that direction-selective neurons in macaque visual cortex gave directional responses to the same static element pairs, also in a direction consistent with the illusory motion. This is the first demonstration of directional responses by single neurons to static displays and supports a model in which low-level, first-order motion detectors interpret contrast-dependent differences in response timing as motion. We demonstrate that this illusion is a static version of four-stroke apparent motion.

Key words: directional; prestriate; receptive field; striate cortex; primate; visual motion

Received March 19, 2005; revised May 3, 2005; accepted May 7, 2005.

http://www.jneurosci.org/cgi/content/short/25/23/5651

[Justin Waters]

Можда ће се чинити као да је ова слика анимирана, али није. На овој слици се ништа не помера, већ само у нашем мозгу: