How much of what you see is a hallucination? - Elizabeth Cox

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  • Опубліковано 25 чер 2018
  • Download a free audiobook version of "Hallucinations" and support TED-Ed's nonprofit mission: adbl.co/2Kpt43k
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    View full lesson: ed.ted.com/lessons/what-cause...
    A condition called Charles Bonnet Syndrome can cause blind patients to hallucinate scenes in vivid color. fMRI studies show that these hallucinations activate the same brain areas as sight - areas that are not activated by imagination. Other hallucinations also involve the same brain areas as real sensory experiences. What's going on? Elizabeth Cox details the science of hallucinations.
    Lesson by Elizabeth Cox, directed by Nerdo.
    Thank you so much to our patrons for supporting us on Patreon! Without you this video would not be possible! Mayra Urbano, Kostadin Mandulov, Alex Schenkman, Sdiep Sriram, Ivan Todorović, Antero Semi, Yanuar Ashari, Mrinalini, Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Dwight Tevuk, Stephen A. Wilson, Siamak H, Dominik Kugelmann, Katie Winchester, David Rosario, Samuel Doerle, Be Owusu, Susan Herder, Savannah Scheelings, Prasanth Mathialagan, Yanira Santamaria, Chad Harper, Dawn Jordan, Chris Mathew, Constantin Salagor, Activated Classroom Teaching, Kevin Wong, Umar Farooq, Goh Xiang Ting Diana, Dmitry Neverov, Tushar Sharma, Cristóbal Medina Moenne, Silas Schwarz, MJ Tan Mingjie, Yansong Li, Henry Li, Kyle Nguyen, Taylor Hunter, Noa Shore, Lex Azevedo, Merit Gamertsfelder, Bev Millar, Jhuval , SookKwan Loong, Daniel Day, Rodrigo Carballo, Marc Veale, Boytsov Ilya, Bozhidar Karaargirov, and ilya bondarik.

КОМЕНТАРІ • 3,2 тис.

  • @TEDEd
    @TEDEd  6 років тому +1063

    Download a free audiobook version of Oliver Sacks' "Hallucinations" here: adbl.co/2Kpt43k! Thanks to our partners at Audible, every free trial started with this link helps support TED-Ed's nonprofit mission.

    • @theconductoresplin8092
      @theconductoresplin8092 6 років тому +2

      TED-Ed
      You like pie

    • @vishwamithra3390
      @vishwamithra3390 6 років тому +4

      TED-Ed drrruuugssss

    • @VariantAEC
      @VariantAEC 6 років тому +3

      TED-Ed
      There is objective reality though.
      However I think the closing statement of this video softly suggested that objective reality isn't a thing.

    • @sisi-qw9xs
      @sisi-qw9xs 6 років тому +1

      TED-Ed Why does the channel speak about science in an atheistic way that should be neutral?

    • @EdWiley671
      @EdWiley671 6 років тому

      It says the audiobook isn't out yet. Why advertise it then?

  • @arithea389
    @arithea389 4 роки тому +7298

    "she was completely blind."
    That really got me wtf

    • @710rainbowzzz
      @710rainbowzzz 4 роки тому +272

      Yes but not born blind, they mentioned that only happens to those that lost their vision. People that are born like that have no idea what seeing is even like

    • @arithea389
      @arithea389 4 роки тому +162

      @@710rainbowzzz it's such a shame that people blind from birth can't see the world

    • @heavymeddle28
      @heavymeddle28 4 роки тому +9

      Me too. Crazy brains...

    • @pia1945
      @pia1945 4 роки тому +4

      spoiler :((

    • @arithea389
      @arithea389 4 роки тому +5

      @@pia1945 ahh sorry (๑¯ω¯๑)

  • @JustinY.
    @JustinY. 6 років тому +4631

    Lack of sleep definitely causes some hallucinations

    • @jaychang6723
      @jaychang6723 6 років тому +143

      Justin Y. Spotted

    • @l6e6i6n
      @l6e6i6n 6 років тому +250

      bruh are you on your computer 24/7

    • @thekingmeruem
      @thekingmeruem 6 років тому +63

      dude , i just saw you in pewdiepie's and linus's videos

    • @RiasnnerRye
      @RiasnnerRye 6 років тому +22

      There you are! 😄

    • @baldisbasics9215
      @baldisbasics9215 6 років тому +32

      Maybe... he's a... fake youtuber, and theres many of them. One are real.
      And those fake accounts comments every video

  • @tannerabbott1452
    @tannerabbott1452 4 роки тому +5031

    Mom: WHICH ONE OF YOUR FRIENDS CONVINCED YOU TO TRY LSD??!?
    Me: uhh, TED-ED

    • @flowerboyfozzie5033
      @flowerboyfozzie5033 4 роки тому +116

      Star Man ah can’t recommend that chemical enough :) happy tripping

    • @revenfox3592
      @revenfox3592 4 роки тому +88

      Actually I just want to know what goes on when u take it

    • @coyotehinderstein37
      @coyotehinderstein37 4 роки тому +114

      @@revenfox3592 its a suspension of ego your thoughts cease to be governed through the filter of self doubt and you think constantly, time cease to be as you experience more of everything at once and before you get used to it one may get lost in a single stream following a pathways to its conclusion without thinking to much about the flaws if they dont happen to come though this affected can be disuaded through learning to assume rather than belife and to governs oneself with higher brain funtion rather than ego

    • @DubstepIsWhat
      @DubstepIsWhat 4 роки тому +27

      Have fun. Wish I could relive my first trip lol.

    • @nicolep168
      @nicolep168 4 роки тому +19

      @@flowerboyfozzie5033 is it totally safe?
      Edit: THANQ FOR THE TIPS GUYS i probably think too much about the world and abstract ideas so idk if i could handle it 😔

  • @freakinstien4486
    @freakinstien4486 4 роки тому +970

    Rosali just vibin in her chair when suddenly she starts tripping

    • @samstuff8554
      @samstuff8554 3 роки тому +47

      All right who laced grannies tea ?

    • @whi2gan
      @whi2gan 2 роки тому +5

      “hELP, I’ve faLLen & i caN’t geT Up”

  • @ramanrendersrandomly
    @ramanrendersrandomly 6 років тому +19406

    The animations were one of the best I've ever seen

    • @f.n30
      @f.n30 6 років тому +85

      COOL SARDARJI yeah very cool interesting and attractive

    • @singhanmolpreet5935
      @singhanmolpreet5935 6 років тому +47

      COOL SARDARJI we have the same photo.

    • @guesswhoami4723
      @guesswhoami4723 6 років тому +13

      COOL SARDARJI I was just about to say but I guess you beat me to it

    • @TommoCarroll
      @TommoCarroll 6 років тому +128

      They were so cool! The animators must have thought they hit the jackpot when they found out they got to just let their creativity fly with this hallucination episode!

    • @sajarov
      @sajarov 6 років тому +7

      Awesome animation!!

  • @jamdc2000
    @jamdc2000 6 років тому +3578

    I felt like it was an episode from Adventure Time.

    • @NucularDonkey12
      @NucularDonkey12 5 років тому +79

      I was scrolling through the comments to make sure I wasn't the only one that noticed similarities regarding character design and the overall minimal style. Reaally didn't help that the blue elephant essentially looks like Tree Trunks lol

    • @nadaotk
      @nadaotk 5 років тому +1

      Yup

    • @gackolpz
      @gackolpz 5 років тому +22

      wizard vision

    • @leafloaf3232
      @leafloaf3232 5 років тому +17

      Like the food chain episode

    • @justseffstuff3308
      @justseffstuff3308 5 років тому

      Ikr

  • @oilylondon5389
    @oilylondon5389 4 роки тому +1441

    "she was completely blind."
    *jazz music stops*

  • @magicmjk09
    @magicmjk09 2 роки тому +413

    The animation is AMAZING. As an artist, I appreciate such great endeavor for creating a visual environment for education to happen at it's very best. Salute to the director.

    • @wintermute8315
      @wintermute8315 2 роки тому +1

      You're definitely not a writer, haha.

    • @magicmjk09
      @magicmjk09 2 роки тому +1

      @@wintermute8315 That's for sure.😁

  • @CuriosityCulture
    @CuriosityCulture 6 років тому +6782

    I think it's so freaking impressive how ted's animations reflects to the storyline. Well done!

    • @CuriosityCulture
      @CuriosityCulture 6 років тому +8

      always leave knowing more. Thank you :)

    • @soufian2733
      @soufian2733 6 років тому +2

      Why are you everywhere

    • @alriefkywalangadi3873
      @alriefkywalangadi3873 6 років тому

      Yeah that's why i like watching TED-ED

    • @CuriosityCulture
      @CuriosityCulture 6 років тому +7

      Soufian 27 hahaha That means you're also everywhere too

    • @soufian2733
      @soufian2733 6 років тому

      Harshil Patel but you’re always the top comment lol

  • @deathisinevitable7178
    @deathisinevitable7178 5 років тому +2718

    Why doesn't the animator remake sonic

  • @trumanzim
    @trumanzim 2 роки тому +557

    Really makes you wonder, if our brain fills in a lot of our vision with stored info, what in real life are we actually seeing and what isn't actually real?

    • @Dragoon710
      @Dragoon710 2 роки тому +17

      That would be one if the upsides to having aphantasia, everything you see is real and there's nothing in your mind that may alter what is actually there.

    • @Willie6785
      @Willie6785 2 роки тому +15

      @@Dragoon710 Not sure. Think it's pretty bold to assume that one's perception of reality is "the rawest" just cause they can't imagine what things look like. Plenty can hallucinate and dream as normal.

    • @spongebob9682
      @spongebob9682 2 роки тому +13

      98% of it is real vision the rest is the eye filling it In. Everything we see is real

    • @duqan9060
      @duqan9060 2 роки тому +8

      We only fill in the blind spots we can't actually make it into something totally different. Kinda like when you're reading fast and sometimes you read something isn't actually written on the line and your mind fills it up as it is something that is usually on the sentence or next to the word. It won't give you a whole different sentence

    • @potentiallyinsane519
      @potentiallyinsane519 2 роки тому +5

      @@spongebob9682 Or is it? What if our brains are processing something illusory, such as data to which all of our brains take in - and what if this data isn't exactly "real," but just an illusion masking a nothingness. Time itself is illusory, and extremely confusing. It is important to remember you have no idea how or why the world works, or why or how you exist; so never attempt to believe that you understand.

  • @bluesky5384
    @bluesky5384 3 роки тому +18

    I’m now remembering the time a few years ago my clothes crawled around on my floor for a few days and I heard someone breaking down my door and terrorizing. May I never relive those days of my life again.

    • @maddieb4384
      @maddieb4384 2 роки тому +3

      i pray that you never have to deal with that ever again, ive had similar, allbeit shorter bouts of that kinda stuff. terrifying

  • @tvlogs7410
    @tvlogs7410 5 років тому +1921

    Well, we will fix this bug in the upcoming update

  • @jake-ip9vg
    @jake-ip9vg 5 років тому +4618

    once i started playing tf2 at around 11am and passed out on my keyboard at around 4am and when i woke up at 11am i could still hear the explosions and bullet fire of tf2, until i remembered i lived in south sudan and those sounds werent hallucinations

  • @gatlina6019
    @gatlina6019 3 роки тому +33

    The cuteness of the hallucination lill guy kinda makes me want to hallucinate just to maybe see it

  • @moon_roses5130
    @moon_roses5130 3 роки тому +239

    Ever had that hallucination right after you woke up, that you're holding your phone in your hand, but then you open your eyes and realize you're actually holding nothing?

  • @azizuladnan2957
    @azizuladnan2957 6 років тому +999

    When the narrator, Susan Zimmerman, said Rosalie was completely blind, with the build up of Rosalie seeing those real-life crowd of circus performers burst into her room, that just blows my mind!
    That's what I called a plot twist!

    • @Kitkat-nr4zj
      @Kitkat-nr4zj 6 років тому +14

      Azizul Adnan hah this sounds like something id right for English class

    • @cocconoce
      @cocconoce 6 років тому +19

      Notice how the music turns off when she says blind at 00:42

    • @risingraisings7012
      @risingraisings7012 6 років тому +6

      M night shyalaman would be proud

    • @TommoCarroll
      @TommoCarroll 6 років тому +3

      "But it was all just a dream"....literally 😂

    • @crystalm4324
      @crystalm4324 5 років тому +4

      I think it’d be pretty cool to experience. Especially once you know you have the condition and realize what’s happening. Then you can relax and watch the show! Hopefully you can add your own sound effects if you’re alone.

  • @kirbymarchbarcena
    @kirbymarchbarcena 6 років тому +1043

    It's quite amazing and surprising that someone who is blind since birth can distinguish colors in their imagination. Yes, they may know the basic colors but having knowing how red is different from blue is another matter.

    • @TEDEd
      @TEDEd  6 років тому +109

      It really is quite amazing.

    • @conntee7945
      @conntee7945 6 років тому +12

      What could it be? God?

    • @benanderson6002
      @benanderson6002 6 років тому +73

      Conn T probably not

    • @VivitoArtist
      @VivitoArtist 6 років тому +70

      what if the color you call red is actually blue to her but she calls it red too. we will never know.

    • @benanderson6002
      @benanderson6002 6 років тому +12

      Lo Sh yea I've thought about that, that's why I think color issues with your eyes would be hard to know you had it

  • @ette_ca
    @ette_ca 2 роки тому +59

    This was a great talk! ♥ *I was really surprised, however, that you didn't mention the fact that no blind person has ever been diagnosed with schizophrenia.* To me, that's perhaps the most fascinating part, especially since the most common form of hallucinations for those suffering with schizophrenia are auditory.
    P.S. since everything we see is subjective, and is all experienced in the brain (for instance: how colorblind people see the world differently), isn't it technically _all_ a hallucination? :)

    • @Graphomite
      @Graphomite Рік тому +3

      Arguing semantics, but I think "illusion" and "hallucination" are different. Everything we sense could be considered an illusion. But I think a hallucination suggests a form representing something that cannot be confirmed by general consensus. The very chair you sit in could be some grand illusion, but the fact that others can confirm its existance and describe it as you do would suggest it is at least not a hallucination.
      If we want to go deeper and dismiss the idea of a general consensus by suggesting us observing others is in of itself also an illusion-- then we must define things by how consistant they are in our minds. Observing a pink elephant is a hallucination by definition because it is inconsistant. While a chair is consistant.
      But what if pink elephants become a consistant sight? So consistant, they are as ordinary to you as your chair? At that point, I don't think language is useful. At least no English language.

  • @atharvius7522
    @atharvius7522 3 роки тому +53

    The brain is so underrated! A lot of people would be fascinated if they’re told about the subject in the right way. Thanks so much TED-Ed :D

    • @thebirdee55
      @thebirdee55 Рік тому +1

      That's exactly why I watch TED-Ed videos. : )

    • @Graphomite
      @Graphomite Рік тому +1

      I get what you're trying to say, but "underrated?"
      Unappreciated. Undervalued. Misunderstood. I agree.
      But, _underrated?_

  • @Thesmus
    @Thesmus 5 років тому +572

    I think this explains why whenever I walk in the dark, with little to no light, I can see glimpses of obstacles in my way, even though I'm completely aware that there are none
    also, gorgeous animation as always :D

    • @JacobHollis96
      @JacobHollis96 4 роки тому +43

      I read about that somewhere just over a year ago. I think that's called phantom imaging. Basically your brain is trying to make sense of what little information its getting while also being aware of what's going on around you.

    • @ghgdjjx5929
      @ghgdjjx5929 4 роки тому +29

      That’s the opposite for me, my brain just imagines a dark path with zero obstacles in the way even when I know that there is a counter in front of me

    • @doodlescnof4424
      @doodlescnof4424 4 роки тому +4

      I honestly don’t try to look I can be closing my eyes not knowing so and I’ll be trying to remember the obstacles in my way

    • @nolestrono
      @nolestrono 4 роки тому +3

      @@ghgdjjx5929 just open your eyes

    • @ghgdjjx5929
      @ghgdjjx5929 4 роки тому +2

      Noah Stronach omg bro thanks I’ve never thought of that, I’ll make sure to try it next time 🤭

  • @semiha.5480
    @semiha.5480 4 роки тому +2842

    I've tried LSD a couple times and asked myself "why does every human beeing have such a different personality?"
    I came to the result that everyone has another perception of "their world" and this has been influencing their attitude since ever.
    So our way of perception determines who we are. This is what defines us as an individual, I believe.

    • @haj2715
      @haj2715 4 роки тому +219

      I had the exact same experience, but instead I decided that deep down, everyone is the same. All caring individuals with similar thought processes as everyone else, but mask their inner softness with their personalities, which are usually shaped by their society.

    • @semiha.5480
      @semiha.5480 4 роки тому +52

      @@haj2715 oh yeah that's right!
      Some people hinder others to flourish. Most people are not aware of that, but if someone is, he/she should look out for friends with similar thaughts. When the real personality is kept down, it can destroy.

    • @steppenwolf2259
      @steppenwolf2259 4 роки тому +35

      Man I had this exact thought during a trip.
      All the elements that define us as individuals are the result of the perception our brain has on the world, including the perception of ourselves. The reason why we may find an other person to have a similar personality, or a similar way of living the day, may be linked to a similar brain functioning.

    • @Desim26
      @Desim26 4 роки тому +130

      You had to take lsd to realize that?

    • @semiha.5480
      @semiha.5480 4 роки тому +67

      @@Desim26 Yes. Sorry Mr. Universe

  • @denizcan5240
    @denizcan5240 3 роки тому +11

    My grandma has this... Thank you Ted-ed for making this video, it helped me understand a little bit more what my granny is going through.

  • @kloves2influence
    @kloves2influence 3 роки тому +18

    I thank you for the content and for this topic exactly because my mother suffers from this syndrome, and when she was telling me about her seeing loud colors, I used to accuse you and say that it is just hallucinations, but now I really understand it makes us respect the difference in our perceptions Thank you for the topic TED

  • @ThZuao
    @ThZuao 6 років тому +251

    How to locate the part where your eye is "blind".
    1- Look straight forward, at a fixed spot, toward the horizon,
    2- Close your left eye.
    3- Extend your right arm and give a "thumbs up" to the horizon.
    4- Move your extended arm to the left, keeping the thumb aligned with the horizon.
    You'll see there's a spot you can't see your thumb at all. Try moving it. It's like it's not there!
    That's where your retina cuts out and the optic nerve begins. It's around 10-15 degrees horizontally to your focal point and it is effectively a blind spot. It's where your brain interpolates the surroundings so you don't see a gray spot all the time.
    The brain also does this somewhat to your nose and eyeglass rims, if you use glasses. I used to wear thick rim glasses with relatively small lenses (I don't anymore. PRK surgery is awesome ♥). And you don't notice them consciently after using glasses for a long time, even though you're well aware of your deficiency.

    • @kingzor100
      @kingzor100 5 років тому +5

      I had glasses forover 5 years and im still as annoyed by there existance today as 5 years ago. When will this kick in?

    • @heyimmary1876
      @heyimmary1876 4 роки тому +5

      AAAAH THIS IS CRAZY i found it!!!!

    • @caringheart34
      @caringheart34 4 роки тому +2

      I had glasses since I was 6 years old... Now I am 12.

    • @ThePsychoCzech
      @ThePsychoCzech 4 роки тому +3

      Strange... I had to move my arm to the right to see it.

    • @cimolcicil656
      @cimolcicil656 4 роки тому +2

      WHOAA

  • @jayvillasenor7089
    @jayvillasenor7089 6 років тому +2134

    Comments: 90% GOOD ANIMATION
    9% Justin.Y
    1% *DEM DRUGZ*

    • @jsanchez9840
      @jsanchez9840 5 років тому +12

      5% Kermit the Frog?

    • @IdiotToonz
      @IdiotToonz 5 років тому +4

      1% CaW jokes?

    • @springleman
      @springleman 5 років тому +9

      WHERE DO I GET DRUGS TO MAKE ME HALLUCINATE KERMIT THE FROG

    • @cringeedits4508
      @cringeedits4508 5 років тому +3

      *_DEM DRUGS_*

    • @Nobody-11B
      @Nobody-11B 5 років тому

      @@springleman The dmt Nexis will lead the way.

  • @MrChaluliss
    @MrChaluliss 3 роки тому +7

    The writing and animations were fantastic for this video. I got the feeling there was well grounded thought behind each line of this video. Fascinating topic.

  • @8amonas
    @8amonas 2 роки тому +3

    This art style is so calming. I just feel alive for once more.

  • @goatboy8032
    @goatboy8032 4 роки тому +579

    Once I got a fever of like 103 and I experienced hallucinations that made me feel like I was shrinking and growing, and to avoid feeling like I was totally gone, I had to grab a large object such as a pillow and curl into a ball around it

    • @studiousboy644
      @studiousboy644 4 роки тому +22

      I feel that.

    • @corgimations
      @corgimations 4 роки тому +23

      That is very interesting.

    • @ghgdjjx5929
      @ghgdjjx5929 4 роки тому +38

      NightcoRohak yeah I used to have that as a very young kid, if I was sick, I would have dreams of clinging onto one thing in the middle of a dark abyss that kept shrinking and growing, when the abyss shrunk, it would close up on me and I just felt overall claustrophobic. Dunno it was really scary lol

    • @Nilloc777
      @Nilloc777 4 роки тому +18

      I became a infinite line when I had the stomach flu once. Sole reason I haven’t done lsd I don’t want to go back to that place

    • @MoarteaLunii
      @MoarteaLunii 4 роки тому +3

      I'm hot blooded, I'm hot blooded

  • @Jonathan-sd8kg
    @Jonathan-sd8kg 6 років тому +583

    I don't know if I'm the only one, but I would feel absolutely terrified. What if you start hallucinating scary demons and devil's and creatures? You wouldn't be able to stop it, it would be too real. I'm sorry for anyone who has this.

    • @lilleanaaker5046
      @lilleanaaker5046 5 років тому +54

      I had hallucinations once and it scared me so much because I thought I heard my mom crying.

    • @kj4433
      @kj4433 5 років тому +83

      Have hallucinated them for most of my life (approx 25 years), before they started to taper off. You get accustomed to them once you've been talking to them for years, they just become a part of your expectations. Found angels to be far scarier than devils tbh, they're more approachable personality-wise. Also, no, I haven't been diagnosed with anything. None of the therapists I went to could figure out why, they just suggested I don't socialize enough so my mind was trying to compensate.

    • @bruhyouknowme2886
      @bruhyouknowme2886 5 років тому +15

      Biggie Cheese I get this all the time during episodes of sleep paralysis, you get used to it after a while.

    • @theyellowbadger7333
      @theyellowbadger7333 5 років тому +9

      I dont know why I hallucinate, but its almost always gory, violent, or just scary... it sucks lol.

    • @vandysok3436
      @vandysok3436 5 років тому +4

      Jonathan 102501 I had the demons and stuffs when I was 4 or 5.

  • @eldante4139
    @eldante4139 3 роки тому +27

    I sometimes hallucinate voices when I’m waking up. A couple of days ago someone said ‘carpets’ and I woke up. I live on my own but he voice was as if someone said that standing next to me. I know it was a hallucination. I find that in dreams otherwise you don’t really ‘hear’ voices, you know almost the same way as reading off of a page what the other person has said. The voice that said ‘carpets’ was also distinctive away from my own voice and louder than my inner monologue.

    • @thegreatestshenfan6484
      @thegreatestshenfan6484 2 роки тому

      This guy by any chance? ua-cam.com/video/6NRH-M38eRo/v-deo.html

    • @Willie6785
      @Willie6785 2 роки тому +1

      I like how you put it in regards to dreams and voices. It always feels to me like everything I'm experiencing in a dream is part of a "script" of sorts. If it's a nightmare about something scary like a monster or such I'd feel anxious all the time during the dream, even more during worse moments of it, sure, but still I can "feel" it was a bad moment. If it's a good dream about something joyful happening, then I always feel light and happy all the time. As such, the events of the dream always feel like they're already something I should be expecting to happen somewhat.

    • @sarahrivera4303
      @sarahrivera4303 2 роки тому

      i’ve also had a hallucination while waking up, and they are apparently pretty common when waking up and falling asleep. they have different names for visual and auditory ones but the only one i ever had was about a year ago, and it was vidual and auditory and im still curious about it.

  • @theprinceofflumes3674
    @theprinceofflumes3674 3 роки тому +4

    5:15 that circle was someones head

  • @flargarbason1740
    @flargarbason1740 5 років тому +410

    The reason the blind spot never bothers us is because we have two eyes. They each have a blind spot in a different place, so they both fill in the other’s blind spot.

    • @alaskavonenzberg6467
      @alaskavonenzberg6467 2 роки тому +2

      sweet

    • @flargarbason1740
      @flargarbason1740 2 роки тому +37

      @@alaskavonenzberg6467 an interesting experiment is to put two small dots about two inches apart on some paper. Cover one eye and stare at one of the dots. Slowly move the paper and eventually that dot you aren’t staring at (which should be in your peripheral vision) will vanish from existence since it’s in your blind spot.

    • @aplus1080
      @aplus1080 Рік тому +6

      No. Even if you had one eye you wouldn't notice the blind spot.

    • @PS1212
      @PS1212 Рік тому +2

      ima keep one eye closed for a few days, seeya in the psych ward

    • @flargarbason1740
      @flargarbason1740 Рік тому

      @@aplus1080 your brain fills it in with surrounding colors. You can notice it if something is totally in the blind spot where the rest of the eye cant see it and fill it in

  • @cheesecakelasagna
    @cheesecakelasagna 6 років тому +506

    Beautiful animation! Kudos to you, animator!

  • @abithemoon
    @abithemoon Рік тому +1

    TED-Ed really makes me question the world and I love that

  • @khanes5376
    @khanes5376 Рік тому +2

    Everything is gorgeous, from the sound effects to the visuals. And the explanation is clear and well put out. You never cease to amaze me!

  • @nymphaea96
    @nymphaea96 4 роки тому +225

    Ted ed is becoming my favorite thing to watch on youtube. These animations, just wow.
    Especially when under influence, absolutely mesmerizing.

    • @danielledavis9335
      @danielledavis9335 2 роки тому +8

      Fun fact: If you watch Drunk History while drunk, it just becomes history.

    • @benzell4
      @benzell4 2 роки тому +1

      You are both hallucinating. ; ^{)

    • @cristiyorke9507
      @cristiyorke9507 2 роки тому

      Hear hear!!

    • @DoofenSpyroDragon16
      @DoofenSpyroDragon16 6 місяців тому

      Watch this while hallucinating lol, same thing, it’s just history.
      But I will say, this makes me not want to hallucinate, EVER. this actually is motivation not to take harmful drugs, as seeing reality bend or break in strange unearthly ways would terrify me. I’m already sensitive, I don’t need to add to it lol

  • @sator6754
    @sator6754 6 років тому +273

    TED-Ed be making better plot twists than M.Night Shyamalan

    • @TommoCarroll
      @TommoCarroll 6 років тому +4

      ...that's actually such a strange coincidence, literally just commented on someone's comment about Sixth Sense....

  • @ellisnguyen4531
    @ellisnguyen4531 2 роки тому

    This video is beautifully put together. Not to mention the descriptions are the most accurate and simple I have ever heard.

  • @tm7171
    @tm7171 Рік тому +4

    I've always loved TED-Ed's animations but this one was especially brilliant!!

  • @aadivrath2407
    @aadivrath2407 6 років тому +410

    Q) What causes hallucinations?
    A) Our Brains, that what.

    • @Foxtrot-U-C-Kilo
      @Foxtrot-U-C-Kilo 6 років тому +24

      Aadiv Rath but how does the brain cause them? The mechanisms involved are varying and complex and measuring them objectively proves difficult.
      "If the human brain were so simple we could understand it, we would be so simple we couldn't"

    • @mparagames
      @mparagames 6 років тому +8

      That phrase tells evreything.

    • @FBIIlIlIlIIlIl
      @FBIIlIlIlIIlIl 5 років тому +2

      I stroke haved

  • @nuelaria6142
    @nuelaria6142 4 роки тому +568

    I hallucinate sounds even though I still have my hearing, some of them were calling names even Unknown songs

    • @howudoin1074
      @howudoin1074 4 роки тому +10

      Same

    • @literally-no-one9587
      @literally-no-one9587 4 роки тому +3

      Nuel Aria same

    • @gabrielrabelo6982
      @gabrielrabelo6982 4 роки тому +67

      It is possible that you have a pretty light hearing loss. I very recently realized that I have tinnitus and a couple months ago I constantly heard people calling my name. While it's just a correlation, it's something to look out for

    • @MrJonutz2000
      @MrJonutz2000 4 роки тому +32

      My brain makes music when I smoke weed

    • @divad2237
      @divad2237 4 роки тому +17

      I heard ppl i know call my name before even Tho they werent around. Was pretty scared the first time bc it just Sounded so real

  • @easiergone
    @easiergone 4 роки тому +54

    when they said, "she was comepletely blind" that creeped me out tho

    • @Dazzmi
      @Dazzmi 3 роки тому +1

      same. sent shivers down my spine

  • @AmberyTear
    @AmberyTear 4 роки тому +4

    I highly appreciate how this animation is done and how it communicates things.

  • @jungkooksbeautifulvoice7326
    @jungkooksbeautifulvoice7326 6 років тому +397

    The animations are amazing!!

    • @TommoCarroll
      @TommoCarroll 6 років тому +7

      They always are on Ted-Ed aren't they? Love how they change their style with each video - but this one blew me away! This was something that 10 years ago you'd expect as a short from Disney or another huge company - but from a UA-cam channel (granted, TED is a huge company) this is insane!!!

    • @marklee-rx1xu
      @marklee-rx1xu 6 років тому +5

      Baekhyun, Seulgi & Jungkook i see you everywhere

    • @JC-ri1jv
      @JC-ri1jv 5 років тому +1

      Hi army also I see u everywhere!

    • @williamjackson460
      @williamjackson460 5 років тому

      They always are

    • @_.kth_jjk._9371
      @_.kth_jjk._9371 4 роки тому +1

      Armyyyyyy💜💜

  • @saukhyatelge4879
    @saukhyatelge4879 6 років тому +261

    "We can pool information about experiences, but never the experiences themselves. From family to nation to every human group is a society of island universes."
    -Aldous Huxley, The Doors of Perception

    • @TommoCarroll
      @TommoCarroll 6 років тому +3

      What a complex quote. Really cool. What is The Doors of Perception?

    • @blizz3rd
      @blizz3rd 6 років тому +3

      "The author of nearly fifty books,[5][6] Huxley was best known for his novels (among them Brave New World, set in a dystopian future); for nonfiction works, such as The Doors of Perception, in which he recalls his experiences taking psychedelic drugs; and for his wide-ranging essays."
      en.wikipedia.org/wiki/Aldous_Huxley

  • @dkpqzm
    @dkpqzm 3 роки тому +2

    What an interesting topic. As a person with a lot of experience with hallucinogenics you really begin to understand how subjective the world really is. When you are able to identify when you are hallucinating it can be a pleasant experience but if you cannot it is very terrifying, I can only imagine life with schizophrenia.

  • @LucidDreamer54321
    @LucidDreamer54321 2 роки тому +3

    The leprechaun under my house says everything is real.

  • @bluesword9112
    @bluesword9112 6 років тому +15

    I'm gasping at every single frame, the animation and transitions are gorgeous

  • @KookiesNolly
    @KookiesNolly 6 років тому +36

    I thought this was going to be about drugs and I was already typing a joke about it and you dropped that « blind people have hallucinations » and my mind was bloooooooown!!

  • @erestube
    @erestube 2 роки тому +3

    When I had a fever, I had hallucinations. At the time I thought it was my brain taking the easy route to showing me what I was looking at. It was kind of an imaginary focus. I guess this video confirms it!

  • @chieeerrrr
    @chieeerrrr 4 роки тому +3

    can we just appreciate the beautiful artwork and animation. good job animators!!

  • @Tuesday_
    @Tuesday_ 5 років тому +54

    having psychosis I can tell you the anti psychotics really work wonders I was extremely paranoid of them at first but when I changed to the monthly injection it really allowed me to step back from delusions and hallucinations and I felt like a whole new person. they come with a few side effects but its definitely worth it if your life is out of control and I can tell you they also really do effect how lsd works. I took some on a holiday with a friend and even after a few tabs It didn't have that much of an effect beside the body load and having a great sense of humour while my friend was really enjoying his trip. hallucinations can be interesting and fun but in every day life they can get in the way and the delusions can really break you down, if anyone is experiencing voices or thinking people are talking in code or the tv is talking to you these can be signs of psychosis and its ok to get health care involved because if it gets worse its hard to trust anyone including your own reality.

    • @Nancy-ow9wy
      @Nancy-ow9wy Рік тому +1

      I'm experiencing this now and am on antipsychotics

    • @silverdweller2809
      @silverdweller2809 Рік тому +1

      I will say for me the meds don't just have a few side effects. They can be pretty awful too. I'm glad they help with psychosis but they make the avolition and cognitive effects worse and have caused me a permanent movement disorder and restless legs syndrome as well as 70 pounds weight gain.

    • @verlax8956
      @verlax8956 11 місяців тому +1

      i got psychosis when i took a heck ton of benadryl

  • @katcubed
    @katcubed 5 років тому +28

    CAN YOU BELIEVE HOW LONG IT TOOK TO MAKE THE ANIMATION.

  • @eatornator-ox2dx
    @eatornator-ox2dx 3 роки тому +7

    nobody,
    absolutely nobody:
    fever dreams:

  • @jaxolan9463
    @jaxolan9463 2 роки тому

    Can we just take some time to admire how fluid Ted-Ed's animations are while managing to deliver a perfectly understandable lesson to the viewers. Impressive.

  • @livtube6145
    @livtube6145 4 роки тому +6

    I am a teenage deaf girl who is on UA-cam a lot and you have just help so much as I have had hallucinating voices. Thanks for letting me know what was happening. Yours sincerely a teenage deaf girl👂

  • @gemma4622
    @gemma4622 6 років тому +85

    TedEd is the best . It's so helpful and informative. I love watching this channel. Thanks to all the people who make the animations and do voice overs and do the research themselves. We are grateful❤️

  • @npop3289
    @npop3289 2 роки тому

    The animations just so smooth and so fluent… it’s beautiful

  • @leixo
    @leixo 4 роки тому

    One time i was trying to go deep in meditation and i thought i sleep but i was awake, and I don't get any visuals that are more normal but i was hearing and controling a whole orchestra, i was hearing every instrument and i was able to focus on then individually, i never have heard this song that was playing, it feels like i was creating the sounds all at same time, it was beautiful

  • @chrisamon9645
    @chrisamon9645 4 роки тому +28

    I can confirm, I've had a lot of hearing issues over my life and I hear all sorts of strange auditory hallucinations.

  • @TamarZiri
    @TamarZiri 6 років тому +199

    This is so beautifully bade and so incredibly cute! filled me up with inspiration and need to create! thank you!

    • @TommoCarroll
      @TommoCarroll 6 років тому +1

      Completely agree! Filled me up with a desire to keep on improving animation and design skills - these were STUNNING! The flow of the video and the style of the animation itself were beautiful!

  • @merenzrot
    @merenzrot 2 роки тому +1

    This video is so visually appealing and calming. Great info as well, thank you!

  • @federativemapperholiday1580
    @federativemapperholiday1580 4 роки тому +1

    This got deeper than I wanted it.

  • @issa8263
    @issa8263 6 років тому +164

    The animations are amazing as always!

  • @AxolinaAxolotl
    @AxolinaAxolotl 4 роки тому +191

    When you look at a mirror in really dim light, almost all of what you see is a hallucination.

    • @AxolinaAxolotl
      @AxolinaAxolotl 3 роки тому +61

      @Hedgiethe Hog just look at yourself for 10 minutes. No distractions. You start to slowly see distortions in your sight. You might not even be able to identify yourself anymore. There’s even a study for this

    • @christyjoseph8963
      @christyjoseph8963 3 роки тому +3

      @Hedgiethe Hog yea i get that too

    • @Quazi-moto
      @Quazi-moto 2 роки тому +4

      @@AxolinaAxolotl Yep.
      Candlelight is best for this.
      Just stare at your reflection or another person... it will change drastically and many times.

    • @zurkez
      @zurkez 2 роки тому

      Link ?

    • @Quazi-moto
      @Quazi-moto 2 роки тому +7

      @@zurkez No link really needed. Just light a candle and stare at the mirror. You'll see it.

  • @maxkrug5501
    @maxkrug5501 2 роки тому +1

    Once again an impressively good video from one of my faovorites channels. Don't stop making this content cause I won't stop appreciating it !

  • @sophiadellacroce9445
    @sophiadellacroce9445 3 роки тому +1

    1:37
    THIS WAS SO SATISFYING TO WATCH-THE NOISSEEE

  • @okeoi
    @okeoi 5 років тому +171

    Not here to encourage drug use, but I believe psychedelics, when used properly and with respect; can be a very positive, introspective and meditative tool. LSD, DMT, Ayahuasca, Psilosybin, Peyote- all hold a place than can benefit us when used in a way that promotes insight to the world around us. The concept of an 'ego-death' is, in the moment, often scary, awful and profound; but when you come back to a sober state, it allows you to reflect and feel humbled, almost. Able to see things in a new light and hopefully gain new respect for things you may overlook in daily life. You see details you never would have noticed. Feel things that you may have ignored otherwise. Often times, people generally go back to a child-like state of understanding. Not in a 'childish' way necessarily, but in that your perception changes to see things fresh and in a new light. One you may have never considered before.

    • @futurehofer1564
      @futurehofer1564 3 роки тому +5

      Post nut clarity >>

    • @campkira
      @campkira 3 роки тому

      it when your brain try to fill in emtry space...

    • @riddlezastra1496
      @riddlezastra1496 3 роки тому +8

      hahahhaha you started with "Not here to encourage drug use.." and then TOTALLY endorsed drug use in the next ten lines.. so much so that I'm convinced LOL

    • @okeoi
      @okeoi 3 роки тому +12

      @@riddlezastra1496 Haha, well, I don't think talking about psychedelics in a positive light is specifically endorsing or encouraging their use. These are just my beliefs and what I've experienced. The one thing I do encourage everyine to do is research for themselves.

    • @riddlezastra1496
      @riddlezastra1496 3 роки тому +2

      @@okeoi Sure.. I am ALL for that, actually.. but you know there are things like psychosis, bad trips.. and impulsive and dangerous behavior ("I believe I can fly") so maybe it's not for EVERYBODY, that's for sure.. but there is this study that says that microdosing everyday has cognitive benefits and stuff.. so maybe that'll work for all of us

  • @cup_check_official
    @cup_check_official 6 років тому +896

    What causes hallucinations?
    them drugs

    • @pear6554
      @pear6554 6 років тому +10

      Hey look, it's justin y's long lost cousin

    • @milhouse14
      @milhouse14 6 років тому +16

      Religion

    • @SuviTuuliAllan
      @SuviTuuliAllan 6 років тому +4

      I've been telling them! It's the faulty software, man!

    • @catherine_404
      @catherine_404 6 років тому +9

      No, it's them substances ) I mean, including those naturally present in the body.

    • @Chronically_ChiII
      @Chronically_ChiII 6 років тому +10

      Our consciousness is a product of the working neurons of our brain and we have no free will over it.
      *That* is why we can be controlled by biochemical interaction of ingested drugs, because we are already controled by the existing drugs in our brain.

  • @uriel_bot
    @uriel_bot 2 роки тому

    what a wonderful animation, I loved how this is not just a vectorial animation, rather this has ( on purpose i believe ) pixel imperfect lines

  • @santoshigupta3855
    @santoshigupta3855 2 роки тому +1

    It is so scary that the possibility exists that one day we just went blind and have been hallucinating since then. This is pretty similar to the Lucid Dream theory where we might have just entered a lucid dream one day and we are just dreaming right now. How disturbing.

  • @tommeng6522
    @tommeng6522 6 років тому +47

    I feel that the video is a Hallucination

  • @whimsycole246
    @whimsycole246 2 роки тому

    Thank you for making this video as trippy as possible.

  • @niamh69
    @niamh69 3 роки тому +1

    4:56 this part of the animation is so cool idk why

  • @redcharget5894
    @redcharget5894 4 роки тому +161

    Boy: granny can you see me?
    Granny: wow mr. Triangle you can talk,
    Boy: I’m your grandson. Are you hallucinating

    • @nabeehakhan6197
      @nabeehakhan6197 2 роки тому +3

      Dang 70 likes and no comments…

    • @zayan8404
      @zayan8404 2 роки тому

      This needs more likes

    • @Cypher791
      @Cypher791 2 роки тому +1

      She knows her grandson is a square…

  • @vinnubanb6602
    @vinnubanb6602 5 років тому +22

    2:16 Maybe that's the reason for dreams

    • @bludandtears8698
      @bludandtears8698 4 роки тому +1

      Vinnuban B YOU MIGHT BE ONTO SOMETHIN!

    • @mandarinsandclementines2997
      @mandarinsandclementines2997 4 роки тому +1

      What about lucid dreams? I have them, their fun but why can't everyone have them?

    • @vinnubanb6602
      @vinnubanb6602 4 роки тому +1

      @@mandarinsandclementines2997 I have never had them in my lifetime even though I am already 15 years old lol :)

  • @shannonreynolds3719
    @shannonreynolds3719 4 роки тому +1

    Y’all animate your videos to fit with the video so we’ll. Not only with what you’re actually animating but also with the style of animation. It’s amazing!

  • @ArtisticAnanya
    @ArtisticAnanya 3 роки тому

    The animation was mesmerizing, ABSOLUTELY BEAUTIFUL!

  • @scube1567
    @scube1567 6 років тому +13

    The green head character is so cute

  • @krimestak
    @krimestak 6 років тому +34

    "Even..Kermit the frog?"

  • @shadabsaleem4005
    @shadabsaleem4005 3 місяці тому

    Each video of ted ed is a gem

  • @stonesheeva7158
    @stonesheeva7158 2 роки тому +3

    Every trip can be a bad trip depending on how you perceive it. I've been in a room full of people on LSD and we all seen the same exact thing. Or the same exact thing happened to us during the trip that seemed to stand out from the rest of the trip. I believe it lifts a vail of what normal perceiving people see. I also had a near death experience and was completely Atheist "Never religious in my life" before this happened. I saw my entire life "Like a movie" play out in front of me. Then I was shown a baby sitting in the middle of the bed with her arms out wearing a ponytail on the top of her head. Then I awoke looking down on myself from an aerial view staring down at my own body. I couldn't see or feel my body from where I was. I only had my thoughts, my sight, and my hearing. I could hear people from below me frantically trying to revive me. I felt calm, warm, like a baby being cradled by it's mother. I was slowly drifting upwards ever so slightly as the seconds past. I asked questions in my head and they were all answered. I was eventually revived and a year later had a baby girl that looked exactly like the little girl from my "Life review". The whole time I was floating I felt as if someone was next to me but I was never able to turn to see who it was. I knew from that moment there is more to this world than we could truly ever understand. Almost feels futile sometimes. Especially to explain it to others. Near death experience studies are fascinating. Seems to hold a lot of keys to the answers of consciousness and the human brain. I was experiencing thing I shouldn't have been experiencing in a time when I should not have been conscious at all. I was dead for 15 minutes.

  • @kingo549
    @kingo549 4 роки тому +107

    It was the day before my 9th grade result of BOARD exams and I was so much stressed out it literally was nerve racking at last I finally slept at 🕝 two thirty n then I woke up at five to Offer prayer (I’m Muslim) and I clearly remember that I was standing and due to extreme sleep deprivation my eyes just closed themselves and I literally saw the same scene but everything was dark mustard in colour and I also saw three to four ME(S) standing on my either side and then I subconsciously say in my mind NOW WE ALL ARE GOING TO PRAY TOGETHER and then I open my eyes just at that moment all of the other ME(S) fuse with me ...I was so scared I immediately finished the prayer and then went to 🛏 bed !!!... I remember that vividly for sure...
    As a side note I scored 97% ( not bad though)
    Also I’m myopic but wasn’t born with it
    Does it mean I have C.......?😱

    • @jewlswaterpower
      @jewlswaterpower 4 роки тому +3

      Shazia Jamshaid woah

    • @kingo549
      @kingo549 4 роки тому +1

      tippity tap yeah mind blowing isn’t it

    • @janarabarr5428
      @janarabarr5428 4 роки тому +13

      Maybe u were just stressed....
      I got hallucinations when I was highschool bcos of depression which causes lack of sleep, crying every afternoon and always alone. I even saw my feet standing in front of me and it was creepy, I even heard someone like a old lady calling my name with a thirsty sound (they were all sleeping that time except me bcos I had insomnia)... For now I stopped hallucinating (maybe) bcos I overcome my depression but I only hallucinate when I'm having sleep paralyze...

    • @kio3370
      @kio3370 4 роки тому +1

      R/thathappened

    • @sammyjero1986
      @sammyjero1986 4 роки тому +4

      Wow I've had nearly the same exact vision of my room being dark and yellowish when I close my eyes, only difference is I was tripping lol. You were probably in a very meditative state from praying which can cause some strange things to happen

  • @mikefelber5129
    @mikefelber5129 5 років тому +184

    I have no problem volunteering for your lsd/psilocybin research!:) #SignMeUp #GreatVideo

  • @onal12345
    @onal12345 Місяць тому

    I have always wondered about hallucinations and I was so happy when I so a Ted-Ed video about it. Thanks. And the animation is just BREATHTAKING espasily 2:53 . You are amazing.

  • @rosequartz4102
    @rosequartz4102 2 роки тому

    I've always been too afraid to take hallucinogens but I remember a few times hearing such real classical music while I was trying to fall asleep. It lasted for 5 or 10 minutes. There's no rhyme or reason for it. Great video!

  • @alexbjarnesen8905
    @alexbjarnesen8905 4 роки тому +8

    The animation is just amazing. So artistic, I'm in love!

  • @gmmg8734
    @gmmg8734 6 років тому +11

    I had only one auditory hallucination when I was a kid. I was by myself and remember vividly being alone in a park near my house. I heard someone whisper in my head and I immediately looked behind me to find nothing. I don't know why it happened, now I only have these occurrences in the twilight zone of sleep, but it was as clear as any voice I've heard. And I'm positive it was in my head as no trees or places to hide to were around. I wonder if I conjured up this memory but it couldn't have been the case, As I remember every detail to the letter.

    • @anissa911
      @anissa911 6 років тому

      gmmg same, i had a few auditory ones when i was younger, they never came back

    • @blaster1185
      @blaster1185 5 років тому

      What did the whisper say?

    • @natmuchthere
      @natmuchthere 5 років тому

      that was a ghost..

  • @pablo4890
    @pablo4890 4 роки тому +1

    This animation was amazing! Ted Ed really does it great!

  • @amaliabarefoot8931
    @amaliabarefoot8931 3 роки тому

    The animations are the best- The elephant in the beginning is adorable

  • @capuchinosofia4771
    @capuchinosofia4771 5 років тому +3

    Top notch animation and great content as always! Keep the good job Ted-ed!

  • @alyssa_faith
    @alyssa_faith 4 роки тому +7

    A lot of times I “hear” my dog moving in her crate, even tho she is outside. I hear those little sounds all the time, so I guess my brain just is used to it lol

  • @dioni5988
    @dioni5988 2 роки тому

    The animations is just pure gold

  • @malikm9226
    @malikm9226 3 роки тому

    The animations were exceptionally well made and presented so well

  • @beegee3709
    @beegee3709 5 років тому +3

    3:17 I've experienced the effect of surfaces breathing while falling asleep many times.

    • @Nilloc777
      @Nilloc777 4 роки тому

      Tornado House same!! It freaks me out

  • @cuttlesquish6723
    @cuttlesquish6723 4 роки тому +2

    The animation was incredible and fascinating! Really cool video

  • @len5329
    @len5329 3 роки тому

    the animation and color palette is chefs kiss

  • @SoGood09
    @SoGood09 2 роки тому

    Now this is something I completely had no idea about. I've learned something today.