3D face optical illusion: Rolling eyes on hollow mask 

Thank you for your kind words! We both now how difficult it is... I have been working with hands, too, and I have an example but it is hard to film. I have a project on torsos but it takes too long with real sculptures. Your videos are astounding!!!!! CONGRATULATIONS!

good lord that face is creepy as hell

i appreciate your reply and your intent to make another one. this one is great also, however, and i hope you keep it on as well. thanks very much

No comments except for CONGRATULATIONS!!!!

Great and a bit creepy too.

wow! That is bloody amazing! I had to look at this long and hard before I saw it was/seemed to be the colouring 'above' the eyes and 'under' the eyebrows that flipped the illusion on for me. And I couldn't stop it, even when thinking that the eyes on the concave side looked like lobster eyes. They did so until the 'eyebrows' came into view.

GRAND optical ilusion!!!!!!

It's not like with Chaplin's mask, this one is really easy to see~ and the added features, nose ring and eye balls, are a plus~

I did make four or five posts about it, but they were in reply to people talking about it. This whole schizophrenia/LSD thing is why I started looking up this illusion in the first place.

They also use this for testing schizophrenics, a healthy brain will see both sides as if they were normal. A sick or schizophrenic brain will not see the illusion at all and will see a pushed out face and a hollow pushed in face....so be glad if you cant tell the difference.

This is COOL~~~ Congratulations!!

Very detailed response. This agrees with what we have observed in formal experiments. THANK YOU!

Now I can't sleep... But nice illusion anyway!

You are right, up to a certain point. Namely, this illusion does not work in real life if you see it with both eyes FROM A SHORT VIEWING DISTANCE. However, if you see it from a long distance (more than 2-3 meters; this varies from viewer to viewer), then you still get the illusion. When you see it with only one eye, you get the illusion even at shorter distances.

This one was done really well. :)

I watch this video every time I feel like I'm going insane and it calms me down a bit. :)

i allways loved this ilusion ^.^

Really very nice done tricks those extentions of the hollow mask. I know how difficult it is. I send you some video's of my own work.

Some scientists noticed that non schizophrenic people, when looking at the hollow face, have 2 parts of their brain getting connected: the one that collect visual info and the fronto-parietal one that is charged of its interpretation. This connexion is supposed to allow the brain to use passed experiences: used to seeing human faces, the subjects tend to understand the hollow face as a normal one. They made out that this process has a defect in schizophrenic people who're not duped by the image.

I'm not going to sleep when this shit is in my head

Actually,this is a movie of passively filming a mask as it rotates. Both the convex and the concave mask have a nose-ring and a pair of physical spherical eyeballs stuck on the whites of the eyes. The power of the illusion is precisely in that there are no computer graphics tricks involved, and this is why it is emphasized in the video.

It is NOT a digital 3D sculpture. It is a physical plastic mask rotating on a turntable and passively videotaped by a stationary camcorder. The ONLY thing that's computer controlled is the rotation pattern of the turntable; it was choreographed to give a good impression of the illusion. In retrospect, I should have rotated it always in the same direction... It would have been a lot simpler and clearer.

i'm high, and i see hollow side

Thanks! I am glad you liked it.

you are awesome dude.....

@lossuperagentes101 I bought a regular plastic mask and had it painted. I added the nose-ring and eyeballs.

Thanks this was great.

Great job! I've seen a similar illusion at the Heureka Science Park in Vantaa, Finland, where encarved faces put in a wall and representing the Finnish presidents were staring at you passing over!

When the mask was horizontal I perceived it as hollow interesting...

awesome!

No this is not CGI. The Programming credit can have many different meanings according to the context. Not so for the Painting or Sculpture credit!!! This was an actual art piece and contest...you can find information about the 2008 Best Illusion of The Year contest on the web, it was held in Naples Fl. I will send you a link if you would like. The Hollow Mask Illusion has been around for Many years. Here are some Ytube examples /watch?v=G_Qwp2GdB1M /watch?v=drrxA5YOodc /watch?v=cN8plJyT0As

it would be nice if they let the mask just rotate in one direction a few times instead of that back and forth motion every single time

that creeps me OUT MAN!!!

OMG... :D Originally heard of this from the book The God Delusion and I thought, "Wtf, I need to check this out." and I saw this and well, this is pretty cool.

haha I didn't fall for it the second time. (: But the first time, I went nuts! Good video!

thats awesome and scary lmao!!!

Thats awesome! And it is real cos i've seen one at a science mueseum!

@TVPapathomas It's not really a hollow mask though, The eyes are still popping out on the hollow part, just as the other side. Probably if the eyes were not popping out you would see it as hollow. So this is definitely NOT a normal mask. It is made for illusions.

I wish I could send you one. Alas, I only have two. Here is how I had them made: I simply bought cheap plastic masks and had an undergraduate (at the time) art student paint them for me on both (hollow and convex) sides. I made the nose ring & eyeballs on my own; they are rather easy to make.

I can't agree with you more. However, it is really hard to video edit the movie. Instead, I am preparing a new one where I will do exactly that: rotate in one direction only. THANK YOU!

That's crazy!

But I can see the layout of the mask and it's easy to tell the back side apart from the front side of it... This is something that happens in our everyday life. We use shadows and light to distinguish what is what but if they are not present, we use things like height, depth and movement... If these don't work either, we touch or smell or hear whatever it is we want to distinguish... It's an automated procedure. You dont do it willingly but it always happens...

That's cool! :)

Oh shit this is so weird. Interesting optical illusion...

AGHH! It gets me EVERY TIME! D:

I think the fact that you are even worrying about that.... is probably a sign.

I just read an article about this, its because the brain perceives all faces to be convex, regardless of what they really are.

can schizophrenics really see this when they look at the hollow side. can they really see it is hollow or can they see it when it is rotated?this is weird. i am very curious now.

You are right; this is freaky. I am working on a more "benign" version. As for the eyes, I do not know what you mean by "hollow eye sockets". I have tried hollow eyeballs and they pop out in front of the sclera (the "white of the eye").

VERY ORIGINAL! Thank you for sharing! I can't wait until the next snow... Please see the other video in my site.

is the illusjon just as strong in real life? i mean considering retinal disparity and such..

Well, training your brain to see it differently is of course another thing. I'm just arguing if you were possibly suggesting that it's actually healthier to not see the illusion. But I agree that it's possible for a normal brain to see it both ways.

"HEY MOM! what are you doin on RU-vid!?"

Cool and fun

Also, people on LSD see through the illusion. I don't about salvia, ayahuasca, sonora desert toad venom, etc.

i saw something like this in psychology... it was awesome. it all has to do with perception.

Thanks.

The illusion is as strong in real life as this one when viewed monocularly (viewing distance, say, >1.5 meters), as well as when viewed binocularly, provided the viewing distance is adequately large (say, >3 meters).

1:28 :)

I've stared at this so many times now that I can easily see the mask as hollow. Not at first, but once it turns once, I can make myself see it as hollow for the rest of the video. What does that make me?

True...But doing so doesn't make it unhealthy...It's just trained to notice reality...

For a split seconds in the beginning I could see the hollowness of the mask but the moment I saw more than the 50% of backside it morphed into protruding face with rolling eyes and all that. So what does that mean. When looking at the complete back side I can never see the hollow mask

Why is the nose ring on the inside of the mask?

WTF ! Weird & Scary !

it is possible to force yourself to see the hollow side of the mask as hollow. i can. it's fun.

i dont get it, what am i tryinto see, or what is the illusion?

Seeing patterns and images like the face on mars is different to seeing the front or the back side of the mask...

hahhahha bravo!!! this is the optical illusion

The eyeballs are perfect spheres; they are not elongated.

Вижу и выпукло и вогнуто. :) I see and convex and concave. :)

I don't get fooled until its at a 45 degree angle

it appears to be spinning the opposite way when on the concave side if you imagine it as the convex side.

is it possible to buy a replica of this mask somewhere?

Apparently, schizofrenics and stoners see right through the illusion. I shall have to try this whilst high.

LMAO that was freakin awsome!! lol

im confused... which side is which??

Illusion: -Under "Convex side", viewers see convex, indeed; mask appears to rotate in the SAME direction as the physical rotation. -By contrast, under "Hollow side", viewers see a regular mask - not a hollow mask - that rotates in the direction OPPOSITE to the physical rotation. -In addition, the nose ring and eyeballs appear to move *with* the mask under "Convex side". -By contrast, under "Hollow side", the nose ring and eyeballs appear to rotate in a direction *opposite* to that of the mask.

Sure, but you said that "[the] healthy thing is to watch things for what they truly are". Our brains are hard-wired to recognize human shapes (even if they aren't there [see pareidolia]). In some cases it's almost impossible for us to look through the image and recognize it for what it is.

Is this inside of the mask where the eyes aren't bugging out?

i agree with you , may explain why everyone thinks im nuts while im casually and calmly explaining things to them with logic while they get emotional. Am i crazy or awake? fucking elite psychological warfare damn robots.....

I can sort of see through the illusion... Then I saw something that said that schizophrenics can. FML

*shivers* that gives me a case of the heebi jeebies....bwah!

I saw the same article. Am I schizophrenic?!

Yup, I saw the hollow side alright... I seem didn't like it much... I can see the hollow side.... But if I adjust my eyes I can't But I can unsee it...

what majors usually take this class?

I can see the mask hollow on one side, but i can also see the illusion. What does this mean for ne?

Whaaa thats scary ....

It works, but not as well. It will work in real life if you use only one eye, OR step far enough to not see all the fine details accurately.

Oh gosh! I got vertigo

@thre4t What if, in the beggining i can see the hollow side looking like a mask. Then after a few minutes i can see it regularly.

Like pseudoscope effect

why does this make me feel the same way after looking at it as when I get carsick?

i see it hollow in 0:20 is that a problem

If you cover the eyes with paper you see the trick much clearer,because no one saw eyes from behind .thats the most irritating factor here.

the reason it is movin is becoz as you move it the marble and the ring moves

where can i buy one of these??

Yup, I saw the hollow side alright...

You are right, Catrina. Das so no CG. abrptb, come to my lab, if you are near New York, to see the actual mask rotate.

that looks fuckin scary!

cool