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?

[@littlearttalks]

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

[@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

[@naillls1213]

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

[@HeadlessDino]

FRRRRR

[@thegamingchannel9899]

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

[@vomwiggins5497]

TheGAMING Channel

[@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.

[@hibak_]

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

[@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?

[@AndrewHelbig]

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

[@StarlightNkyra]

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

[@lightlingzooma-69]

😐

[@0901강민재]

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

[@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

[@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.

[@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.

[@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

[@CaritasGothKaraoke]

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

[@volatileaxolotl707]

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

[@EricsWisdom]

Awesome channel!

[@Setb5ko]

I agree

[@adjoabaidoo6545]

Very interesting(as usual). Good work

[@andylee8602]

🧀🧀🧀🧀🧀

[@Aurora59730]

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

[@reginald6183]

Mind Blown

[@ericswain4177]

The optical illusion of a material universe Trap. One of the many reasons we are in this fix.

[@missingno3391]

The 3D glasses in the top right are backwards. Idk if the colors are in the right place but left and right are in the wrong place.

[@chrisquint3656]

they are the old school cardboard 3d glasses folded up. red for right eye and blue for left...

[@94gsh]

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

[@SkeletonKingYoutube]

the pan is not defective the cup has inverted shadow

[@MarioLuigi0404]

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

[@safayet269]

Excellent explanation :)

[@nikolacode]

That Lincoln face is unsettling.

[@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

[@ajajgamers2965]

Who do u get these optical illusions from

[@JY-tq4ir]

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

[@wotgamerz9212]

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

[@hmoodiealjunaibi1196]

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

[@calhasbrouck1]

I love watching these

[@tomasguerra9761]

please put how do we know how we feel

[@matthewwatts6257]

I have that same eye model

[@flyerairy6889]

No way, that’s so cool!

[@zmanwitzplan3180]

on the first one it stayd gray for a few sec.

[@-Sanctuary-]

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

[@lindsayz2283]

Me either

[@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.

[@reececowan7403]

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

[@lucbriant]

Literally closed the video the moment they inverted Abe

[@jonahkruszyna8003]

I forgot to breathe during this video 😂

[@dayswillburn777]

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

[@PrakashBharti786]

you are too good...

[@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.

[@azaraftimos9146]

Thanks

[@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.

[@anishaghosh101]

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

[@user-nt4ve5hj2z]

this is so cool

[@carrinetrower141]

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

[@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

[@chrishomere6557]

Man, Lincons gonna give me nightmares

[@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

[@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

[@Markus9705]

Damn you evolution! :P

[@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

[@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?

[@ChanBerlin]

Oh!Inside Out!I like this movie

[@leungchoihung2465]

...

[@xxx_robloxmasteroof5160]

I don’t think the grid trick works if the white spots are a bit bigger

[@Dan-bw9vl]

Is anyone freaked out by that upside-down abe face thing? It's just starting into your soul...

[@YoHoOMirster]

+Plant Zart look closer

[@transformingbeast3482]

do a video about backwards messages

[@seiichimangat6444]

Very helpful thanks😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊

[@Im_A_Nerd]

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

[@dakshbadal7522]

4:09 I am officially closing this video.

[@Ray2311us]

memory bias of the mind

[@liberg101tm4]

Ted-ed its tricking my eyes it turns black when I change the spot

[@jwilham]

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

[@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

[@mrduke111]

I am immune to any illusions

[@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)

[@shaqman5335]

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

[@ajajgamers2965]

Whoa some of these are trickey

[@spartan9268]

they tell me about the eyes and how did i not notice. that but berd

[@rugma1696]

that upside down Abraham Lincoln... omg nightmaree

[@eine4768]

Upside down Abraham Lincoln will forever haunt me

[@rcuadra100]

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

[@Mackeye_]

Abe Lincoln looks so creepy!

[@CodyWhy]

Now my brain hurts

[@floydsteel1703]

I see black dots not grey

[@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?

[@smile-yl2sb]

i watch brain games so my perefreal vision is trained for this :) bring it on.

[@ismatara1260]

1:46 Is that the eye of cthulhu????

[@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!

[@mrsmamalove]

The Abraham Lincoln one gave me nightmare!

[@deusexmachina1253]

When u fall to Sharingan Genjutsu..

[@ThunderCatchers]

How did the muffin pan illusion work?

[@reesegil9627]

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

[@chaks94]

+Cango Mango Probably you are color blind

[@semvermeulen7039]

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

[@beastyfox]

whats up with the joker cards

[@Emily-xo7tu]

i didnt get it

[@olexandrantipov9882]

that fave upside down iss creeping me out to its creepy

[@aidan.6206]

POV: ur watching this for a school art

[@kyleight4523]

I will not be able to sleep tonight

[@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

[@pornpanjones4138]

the muffin pan works

[@Xx_zealand_xX]

My eye's hurt now....

[@respectableaf9061]

Like when other users complain about my profile pic.

[@Coolcat-zl7bl]

That's cool