How optical illusions trick your brain - Nathan S. Jacobs

[@brandonvillatuya9539]

I don't know but upside-down Abe is creeping me out

[@thatannoyinguy2522]

lol ikr

[@LunarFoxcatR00d]

XD WAT HAPPEN TO UR EYES LINKY!?!?

[@rugma1696]

thatannoyinguy 25 lol rapmon pic

[@Jamie31166]

I lost my mind looking at that one

[@alphaomegaprime3923]

why didn't he do that on Trump?

[@MS-gv6jd]

i learn more from ted-ed than in school

[@thegamergirl6164]

same

[@jasp3r3nr0b8]

It’s weird that that is true but we learn different rhings

[@lightlingzooma-69]

Dang bro just roasted the whole educational system

[@flop.a]

Nice but then you would have to score an A+ in KZbin

[@HeadlessDino]

FRRRRR

[@greenlionawesomeness]

I get why the illusions work the first time, but why doesn't the brain adjust it once it realizes that it's assumptions are false? :(

[@stellarlies9763]

Eden Kaufman because that's how the brain works. You're not being tricked by the environment, you're being tricked by your own cognitive process, the brain simply can't change the way it works with this kind of new information, because doing that would also change how you see 3D images. This illusions have place because the brain is always assuming we're watching tridimensional objects. You're brain isn't going to change itself for you to watch different something it doesn't even affects you. You see the concave for the lightening, and even if you know that's true, you can still perceive the lightning and will keep understanding the universe as it behaves outside laboratory testes like this one's.

[@stellarlies9763]

Eden Kaufman besides, the definition of am illusion is precisely that you can't stop perceiving it that way no matter which amount of new information.

[@0xVENx0]

didnt u hear what he said? ur brain tries to be as efficient as it can be, so it figures out that there is no need to keep them

[@thalespro9995]

Underated comment

[@gabrialtome4478]

Although that is true your eyes are just sending you raw data your brain interprets it and sometimes your brain interprets it as fake. Now is it a trick of the brain if the brain knows it an optical illusion.

[@thegamingchannel9899]

4:09 Oh my God that's creepy, especially with the shadow on the eyes

[@vomwiggins5497]

TheGAMING Channel

[@littlearttalks]

This is a great explanation that breaks down exactly how our eyes are led to see optical illusions!

[@volatileaxolotl707]

My brain is gonna be so pissed at me for watching like 50 of these in like an hour.

[@darshansk139]

What software do you use to make these videos? :O

[@TEDEd]

We mostly used Adobe After Effects for compositing, and Dragonframe for stop-motion animation.

[@fastndd]

TED-Ed Thx, I might use some tricks for some artwortks ^^ as i know a bit now how the brain work

[@jeerananatawimonporn6104]

Darshan

[@darshansk139]

Yes jeeranan?

[@hibak_]

This was very well explained thanks, Im always seeing optical illusions but never completely understood how they happened

[@Sam-tf9ip]

The Abe Lincoln didn't work on me...

[@benjohnson8256]

mlg

[@grrr1351]

Yup. I thought it was a Dracula version of him. Till now I don't understand what the narrator meant

[@namelessname5553]

+ROBIE Could it be related to autism in some way? You know, he said about how we focus on the mouth and eyes for knowing the emotions of the people you are seeing.

[@Sam-tf9ip]

Nameless Name wow.

[@aleaf01]

+Nameless Name No. I have autism and it kinda worked on me. Also that was harsh.

[@Aurora59730]

That upside down Lincoln creeped me out once it was the right side up :-/ Gonna haunt me in my sleep!

[@0901강민재]

착시현상이 우리들의 두뇌를 속이는 방법에 대하여 배워보는 시간이 되었습니다. 보는 눈의 시점으로 착시현상을 이해해보는 시간이 되었습니다. 정말 재미있는 시간이 되었습나다. 감사합니다.

[@100Hasake]

I still don't understand the explanation about lateral inhibition

[@dig_deep_]

Lateral inhibition increases contrast, meaning when a light and a dark thing are near each other, the light thing appears lighter and the dark thing appears darker. The illusion in the video works because the intersections of the grid have less black near them than any other point on the lines, and the relative lack of contrast between the intersections and the background causes the intersections to appear darker than they are. I don't know why this is only noticeable in peripheral vision, maybe you can look that up if you're interested.

[@TheDarioSmiles]

Alabaster I guess that is because of the receptors that pick up black and white (or rather light and dark) and the lack of them in the middle of your retina.

[@SkeletonKingYoutube]

the pan is not defective the cup has inverted shadow

[@AndrewHelbig]

I can't believe I didn't notice that lincoln illusion when it was first shown upside down. Pretty cool stuff.

[@GinaaTheCheerleader]

When the Abe photo was upside down it looked creepy at first then I noticed what was up when it turned around.. it looks weird both ways tbh.

[@daameer]

Yeah, the same.

[@sambenjamin6321]

The abe one didn't trick me

[@tobiahgonzalez5381]

The narrator has got to be the best narrator I know, (well, 2nd to Morgan Freeman XD) He always makes the video soothing to hear and very clear. Kudos to the Narrator! ^^ (who ever he is)

[@zakariaabdimohamed7063]

He's Addison Anderson

[@StarlightNkyra]

4:00 Me when the water starts rising after squatting at the local taco bell

[@lightlingzooma-69]

😐

[@abigailjieyeelim6702]

if you change it into the colors used in graphs for math (green lines and white bg), could it have no effect on us?

[@OPinionssss]

i think no. my marks still gonna be constant and 0

[@BinkieMcFartnuggets]

The grid illusion works with other things too. If you stare at a woman's breasts long enough, your peripheral vision will not see her hand coming to slap you in the head.

[@CaritasGothKaraoke]

Yeah those upside down faces never work on me. I can instantly tell the eyes and mouth are flipped.

[@hmoodiealjunaibi1196]

4:00 this gave me nightmares for 2 weeks you should make a creepypasta about it XD lol

[@jasp3r3nr0b8]

I don’t like the Abraham Lincoln

[@lolbro8701]

I have a weird reflex when I clean my right ear I want to cough I know it's got nothing to do with the video but just saying

[@Equanimous69]

You you hatt gandu

[@jwilham]

im sorry... but i could tell abe's face was totally fucked up as soon as i saw it. lol

[@someperson3163]

I think I've watched too much of these vids cuz my head hurts... :I

[@astro-animation]

Ikr? These stupid things are addicting. :O

[@eine4768]

Upside down Abraham Lincoln will forever haunt me

[@reginald6183]

Mind Blown

[@Markus9705]

Damn you evolution! :P

[@MarioLuigi0404]

The muffin pan looks normal to me. Just the one looks like a flashlight is focused perfectly on one spot.

[@EricsWisdom]

Awesome channel!

[@Setb5ko]

I agree

[@AlfaAxel]

The white point is surrounded by more white on all four sides than any white point along a line segment. Does the language make sense? Does he refer to a Hermann grid where there is no highlighting of the intersections? I think there is an error in the text or the name of the grid. Wikipedia distinguishes between Hermann Grid illusion and the scintillating illusion. Wikipedia also shows that some researchers have contended (doubted) that the lateral inhibition actually can be used as an explanation - but then again, references are missing.

[@bakirev]

I have that same plastic eye model at 1:48. The quality is absolutely terrible.

[@adjoabaidoo6545]

Very interesting(as usual). Good work

[@andylee8602]

🧀🧀🧀🧀🧀

[@-Sanctuary-]

For some reason i wasn't tricked by the muffin pan illusion.

[@lindsayz2283]

Me either

[@Mackeye_]

Abe Lincoln looks so creepy!

[@MrYanliang]

i saw the muffin pan and when u said the one facing the other way popped up i was like what arent they all flat? also i found the second picture suspicious instantaneously

[@safayet269]

Excellent explanation :)

[@liruoyin]

IT CAN KILL YOU !!!!????

[@susanmcdonald6879]

thanks, enjoyed this very much! It just shows to go ya', that our visual sense is a bit unreliable, in the Platonic sense that is :) we are easily fooled...we are chained in the cave viewing shadows of reality, not reality itself, . and what about the Parthenon?...how there is not a straight line in the entire building (to compensate for heaviness, etc) you can actually put a hat on the steps on one end, and you can't see it at the other end.... It's also interesting that our sense of hearing, the last sense to go when we die, is much more "rapid" in its translation & connection to the world, no upside_down screen that is reversed only in the brain, takes time to do all that, not so with hearing....& more than vision is the Greek "logos", reason, logic , sound.... speech, discussion, debate, communication.... interesting implications there, don't you think? that reality is largely invisible....

[@andylee8602]

🤪🤪🤪

[@ThatFoxxoLeo]

This looks like complete word mush, the ramblings of someone trying to seem smart

[@fotiskoutsou2089]

Sociologist: Upside down Abraham Lincoln doesn't exist, he can't hurt you. Upside down Abraham Lincoln:👺

[@vixen_9962]

I wonder what would happen if you raised a child from birth with real optical illusions and separated them from others then sat them down to look at these images. What would they see?

[@anishaghosh101]

You know I could not complete the video because that grid kinda bothered me

[@johnevanderhubahib4109]

Is it weird that i only see concave or convex on all of the circles in the muffin pan by just the way i think what i want to see? I cant see any any optical illusion in there. It is either all convex or all convave to me. 😂

[@Im_A_Nerd]

the muffin pan and abe lincoln painting things at the start didnt work on me? weird

[@rcuadra100]

that abehr ham lincoln one scares me srry bout my spellling in in 3rd grade im 9

[@aidan.6206]

POV: ur watching this for a school art

[@respectableaf9061]

Like when other users complain about my profile pic.

[@shaqman5335]

i dont get the muffin pan they all look the same to me right side up and upside down

[@wotgamerz9212]

Wait I didn't see grey flashes in the grid, does that mean my eyes are defective?

[@andylee8602]

🍏🍏🧠🧠

[@noelle1317]

BOOOOOOOOOOOOOOOOOOOOOOORING!

[@reesegil9627]

Instead of seeing gray in the first optical illusion I see red. Anyone else?

[@chaks94]

+Cango Mango Probably you are color blind

[@BallotBoxer]

The Lincoln illusion didn't work for me. The manipulated photo looked just as busted upside-down as it did rightside-up. A better illustration of finding faces in nothing would have been pictures of car bumpers, knots in bark or wherever faces coincidentally appear.

[@SamuelMinear]

So Optical Illusions Created Us?

[@TommyDerminer]

Check out this mind-blowing shit!

[@semvermeulen7039]

dan dis illusion is so real it work even it is post

[@reececowan7403]

1:50 I have the same eye model on my desk. Go figure.

[@franzbi8465]

Now you know your life is a lie. Haha.

[@jonahkruszyna8003]

I forgot to breathe during this video 😂

[@TheGreatWallOfJapan_]

i did not fell for any of those illusions

[@gilangp2011]

Addison Anderson Your Voice is so handsome I'm curious how handsome your face really is. Thanks, from me in Indonesia

[@xjlmt]

Lincoln didn't fool anything here.

[@nikolacode]

That Lincoln face is unsettling.

[@94gsh]

I don't understand very much what is lateral inhibition. Could you explain me, please?

[@Shiri_Yam]

The Abe Lincoln illusion doesn't work. Then again, perhaps it's because I already know the illusion.

[@eliaskivenmaa4609]

Okey so again once more I find out optical illusions don't work on me. Can anyone explain or guess what the heck is wrong with my brain. Why doesn't it try correct and fill in my reality???

[@kyleight4523]

I will not be able to sleep tonight

[@HBKnowItAll]

Every animation you do or Disney is optical illusion because they look like they are moving when they are not (Rip Disney paper animation 1937-2009)

[@dayswillburn777]

Am I the only one that recognized the weirdness of the upside-down Lincoln from the start lol?

[@pammiefay16]

Ok thx see you there are any problems with the same time I'm in love with a few years ago and I am a little bit more. we have to work. the only one who can help me with a new job. the only one that has made me think that you may not know the truth, but the fact

[@maliktanveer6722]

i didn't understand why Abraham is subject for all optical illusion:-!

[@liberg101tm4]

Ok this is so not cool of the toys

[@beastyfox]

whats up with the joker cards

[@satire9298]

Further proof that God exists.

[@officialJellyfishSquid]

....LOL?

[@reinatr4848]

what? These assumptions can be explained with the possible results and risks of the natural environment where primates lived.

[@doof339]

Well my brain is really stubborn. Though it now knows the reason it still showing that muffin mould upside down and the grid something like blinking

[@Ray2311us]

Now... I wonder. How do people train themselves to be delusional optimists and succeed at it as opposed to not succeeding at it? Like Kanye West for example being both a success and a failure.

[@AtreauStallings-r2i]

The Lincoln is weird bruh

[@infinitytower8957]

I didn't get tricked by the grid

[@ekarin7778]

Last one cant trick me

[@stifhenlandaeta773]

FALLOS CEREBRALES NADA MAS.

[@MichaelPomeroyinmauritania]

damn! that grid makes my head swim. If i look for even a moment, i get all dizzy and the lines pulse and the intersections flash grey, black, and white. Thats not what the video said was supposed to happen. Am I broken?

[@leelamh7768]

ermm.... is it just me, or does the man in the first graphic sort of look like ted cruz?

[@rugma1696]

that upside down Abraham Lincoln... omg nightmaree

[@kittencraze7278]

Now that creepy Abraham Lincoln fve will give me nightmares.

[@JY-tq4ir]

great video 4:10 brain shortcut is to focus only eyes & mouth to picture FACE

[@tinypenuscletus6471]

hi jpms kids who picked this

[@floydsteel1703]

I see black dots not grey

[@umaninstrumentalityprject2989]

if u look at the upside-down Lincoln then focus on his eyes u will see something u will not be able to un-see and it will haunt u for your life

[@MrYanliang]

i saw the muffin pan and when u said the one facing the other way popped up i was like what arent they all flat? also i found the second picture suspicious instantaneously

[@vaibhavsalunke7733]

The muffin pan illusion doesn't work as well as the grid(for me personally atleast) since I expect a shadow of the dome on the pan

[@Robert6P6M]

The spots were brown.

[@stephtoms6444]

I wasn't fooled by the Abraham Lincoln, and I don't get how the muffin pan has a dome not dip…. I love the grid one too!

[@서은영-k8b]

I am immune to any illusions

[@Ray2311us]

memory bias of the mind

[@carrinetrower141]

Why do I see a grey cloud looking vertex when I look into the sky that looks like a hole in the middle

[@joesutherland672]

Ummmm... Is it bad that I didn't see any of the illusions and I'm not blind?

[@collwow1060]

yap gray

[@danielduran7216]

ol🤗🤗🤗

[@Toorxo7]

I just woke up from dream and when i woke up that was also dream an its very scary and now i’m afraid that if i lost in my brain forever thats very dangerous and i start crying but i could’t find any video which can show how scary and weird illusion can happen in ur brain and you can’t do anything. I’m scared and i do’t wanna fall sleep just because of weird dreams. Please if anyone have suggestion let me know . I think death is easy than scary things in mind

[@koda_dawgg]

this kind of sounds like sleep paralysis. you can be awake during sleep paralysis but you might see illusions and you can't move during these. if this isn't what it is, then i'm unsure of what you're dealing with. i'm sorry this is happening to you. :(

[@Toorxo7]

@@koda_dawgg i was smoking weed vape for last three month i went to doctor and told him that i could’t sleep because of scary dreams and illusion and sometime i doubt on reality , he said you must have fentanyl for so long and i told i smoked weed vape he said in california drug dealer mix fentanyl with weed liquid and it create Brain fog in your brain that mean Dreams feels like reality and reality feels like dream but its gonna be like 2-3 weeks , he gave me Sleep medication . Now i’m good , Thanks fr asking

[@nehabadvel1688]

UUUUGH Abe looks creepy