Neuroscientist Answers Illusion Questions From Twitter | Tech Support | WIRED
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- Опубліковано 27 тра 2024
- Pascal Wallisch, NYU Professor of Psychology and Data Science, answers the internet's burning questions about illusions. What is motion-induced blindness? How do mirages happen? What's the explanation for "The Dress"? How did they make the Tupac hologram? Pascal answers all these questions and much more!
For more on these illusions: www.foxlabnyu.com/techsupport...
Director: Justin Wolfson
Director of Photography: Brad Wickham
Editor: Joshua Pullar
Expert: Pascal Wallisch
Line Producer: Joseph Buscemi
Producer: Justin Wolfson
Associate Producer: Paul Gulyas
Production Manager: Eric Martinez
Production Coordinator: Fernando Davila
Camera Operator: Claudio Corredor
Sound: Brett Van Deusen
Production Assistant: Ralphy Vasquez
Post Production Supervisor: Alexa Deutsch
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Assistant Editor: Paul Tael
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Thanks for having me on the show. Hopefully, it was sufficiently interesting/helpful.
Very well done. You have a lot of fans in the comments, including many former students; that says a lot! They should have you back.
It was extremely so! Thank you for all the insights!!
It was really fun, thanks dude.
You are amazing! Thank you. I hope you do a second video!
Your segment was fascinating. I’ve always been curious about the illusions you discussed but now I have an understanding. You did a wonderful job at explaining scientific topics in such an easy-to-understand manner. And your humor was a bonus!
This guy is so good at this, he's actually wearing a red plaid shirt.
I was going to reply on the other comment but it got deleted. Those are bots. They go through comment section and copy a comment so they look like like a real person, in hopes you go to their profile and follow links to scam pages. Also, your comment was hilarious!
Hahaha
It's not red, it's actually blue and black😂 or is it white and gold🙄🥴
Is it really a plaid shirt?? I mean there's no pattern 🤷 I'm really not sure on the terminology
looks like corduroy to me
“Our brains are immodest” is a great phrase
My guy treated it like a speedrun while still being incredibly informative and concise. Thanks so much!
Pascal!! The best professor I had at NYU! Can’t express in words how happy I am to see him in-front of more eyes. The best of the best
This man strikes me as one of the most intelligent I have ever seen in any context. And i have personally met a number of the most important theoretical physicists alive
haha in front of more eyes u say
@@quarkraven Well his answer to the Moon question was wrong. I'm sure he knows more about the brain than astronomy though.
@@HeroesBossesit is not wrong. He states that the reasons are not entirely known or agreed upon, and he states his favorite explanation. That is as correct an answer as you could give as far as I am aware.
I was just going to say his students must feel lucky.
"I'm taking psych next semester because Pascal's class is full."
I like how he said he was going to ruin ducks for everyone and then made them 10x better.
Hmmm I've tried like 4 times and I can't quite figure out what he means by 'dog masks'. I'm not seeing it. Interesting to think that some of you out there could immediately see the 'dog mask' once he pointed it out
You have to look at the duck's bill. The tip looks like a dog nose, the two points furthest back look like dog ears, and the nostrils look like the dog's eyes. It kind of reminds me of a corgi.
I watched the whole video and don’t remember anything about ducks, despite waiting for it. Anybody have the time stamp?
@@BrainyCrafter He attempts to ruin our lives at 18:57
@@gelatinguyomg AHAHAHA I love it
The most beloved Psychology Professor at NYU. WE STAN PASCAL
20:40 this is why some stores have bigger shopping carts, people tend to buy more when they don't think they're buying that much.
well... there's also the obvious reason, which is that you can fit more stuff in there.
One of my favorite instructors of all time. When I was a student at NYU, I took his sensation and perception class and it altered my entire life trajectory. Watching this was a fantastic reminder of how efficiently he communicates these sometimes dense concepts merely by exuding his palpable passion about how insightful these illusions can be with regards to the way the brain is creating models of external inputs.
I took his perception class and advanced psych stats. Man is a polymath. He taught coding and a course on psychopathy as well. I tried twice to get into the psychopathy course but was snubbed both times!
really? i thought he was actually terrible at explaining multiple times throughout this vid. where what he said was a complete abstract with no context, that you couldn't possibly understand unless you already know about it
@@R0DSTER This may be a bigger indictment of your abilities than his... but I concede that he may come off as a bit flight-of-thought-ish in his explanations.
@@R0DSTER he was quite intelligible to me. seems like a you problem
@@R0DSTER I know nothing about this stuff and thought he explained everything wonderfully.
Love how he is willing to admit that there are things we still don't know. Definitely am important thing to communicate: there are always more things to discover
Psychology in general is still an extremely new field of science when compared to every other field of science.
Agreed! All proper scientists will, and should!
that's what real scientists do!
I could never see the dress as black and blue until this video. I guess him holding up the dress first fixed my brain for a couple seconds and I could see the image as black and blue. Then half a second later I remembered what the white and gold "version" in my head looked like and it changed back to white and gold immediately. But now I can kinda trick my brain into seeing it as black and blue and it's the coolest thing I've ever seen.
I saw 1) light blue and 2) dark gold 😩
I think one time I was able to trick my brain into seeing white and gold, but only for a brief second, and I haven't been able to get that version back.
I think it starts with convincing my brain that the top of the dress's black part is actually gold, in a sepia-like filter or something. But I just can't do it again apparently lol
I have never and do not see white and gold. It makes zero sense to me. All this time I also believed that anyone who said they saw white and gold were just saying that to be artificially different and seem interesting.
i am a black/blue person and a night owl (so that makes sense!) and i always was reminded of the way white and blue can change with bad lighting and bad cameras, so i assumed it was some case of automatic brain color correction for the white/gold people. and it seems like it was and i wish he would have explained the morning/night person thing a bit more in detail. but it makes sense that the white/gold people with the help of this video can see the black/blue, but the black/blue people cannot see the white/gold. because why would they color correct a picture, if they already see the correct version! i am wondering now in what other situations the morning/night people see differently.
@@o0Donuts0o In other words, you not only instantly disregarded other people's experiences because they were different than your own, but chose to demonize those with different experiences than you?
What a delight you must be.
I came for the dress question but found myself engrossed in this ENTIRE video! I loved this way of explaining it so it’s easy to understand.
had him as my prof last sem for my data science class. hands down, he is one of the best at NYU. his passion for teaching and learning shines through in every second.
I wish these episodes were an hour long of these experts sharing their knowledge, I can never get enough of them!
This particular guest reminds of watching the show Brain Games back in the day.
May I recommend the podcast Ologies? Similar concept, longer format. I recommend the episode about bats
This was the best episode ever. This professor was the best at breaking it down and not making me feel like I either NEED a PHD to understand nor need a nappy time afterwards.
I can tell this guy has a lot of information in his head because he talks really fast AND slow because he knows it all but has to actually explain it slow enough for us to take the information in. I could listen to him for hours
This should be a series... like the one with the body language guy. The man knows his stuff.
it is lol . its one of their biggest series that makes the channell famous
the one with a hacker is great
these guys in the videos are all professionals, they all know their stuff
@@polanski2399 OK, Mr. Obvious.
Joe Navarro
My eyes lit up seeing Pascal in this video. I took two classes with him at NYU and they were delightful. He somehow made advanced statistics interesting and had such a bright and vibrant personality! His research on psychopaths and music is fascinating. Love seeing you doing well, Pascal! 😊
this was one of the more engaging "expert" sessions I've seen. Our brains are freaky!
I always asked my Physics teachers and adults in general as to why things like fidget spinners and tops spin in reverse at times and they were dismissive of my questions and said that it was not true. I thought the "wagon wheel illusion" as I know now, was something that happened exclusively to me. Finally got the answer to one of the most intriguing of my childhood queries.
P.S. I loved watching tops spin, and fans and in general anything in rotational motion for this very reason, I still do.
i love how deliberate scientists are with word choices . they use the best possible word for the context and its verry satisfying as a person with aspergers. no misscomunications for once .
Science people got us!! Great choice of words and always happy to answer questions if something isn't clear, it's like a dream come true
Speaking as a research engineer, I'm glad they are precise. Definitions matter (and can be difficult) and finding the boundary between two different things is part of what they do. I got an English degree so my instincts are for hyperbole. It helps my writing be relatable but I have to have that precision to keep me in line so that I can communicate well.
I have ALWAYS seen the dress as black & blue. Never understood how anyone could see different. To find out only night owls see black & blue is really interesting because I am an EXTREME night owl with a severe circadian rhythm sleep disorder.
Thank you for such a fascinating vid. I'd like to see more like this.
My 5 yr old daughter saw that dress as white and yellow, while me i saw it black and blue ,too and yes i am a night owl🤣🤣
I’m a night owl and see it yellow and white but I used to see it as black and blue so I was confused when I saw it again and changed colours
OMG I JUST SAW IT AGAIN AND SWITCHED AGIAN WTF IS BRAIN
i also thought that it might have related to the exterior lighting, i.e. daylight/nightlight, which would influence the brightness of the phonescreen, which could affect the result
This blew my mind too bc I have never seen gold and white too!!!
He is such a professor professor like if someone told me to imagine a professor I'd have conjured him before I ever saw him.
One interesting illusion I've experienced first hand was sitting in a room with dark green curtains on a sunny day and suddenly noticing everything outside that room looked kind of pink. So probably what happened there was my brain subconsciously adjusted to see colors "normally" in a room strongly lit by green light and also applied that adaptation to things that were not in the same green light environment, instead lit by white lamp light.
It makes me really happy that people in the comments had a good time in his class 🥺
I had him for three classes! He really is a gifted lecturer. He always made himself available to anyone
@@dfxgdg you guys have to stop. Making me jealous that I will never meet or be taught by what seems to be a fantastic teacher.
WIRED really finds the absolute best people to do these videos. I always enjoy all of them.
It's great that he debunked the "myth" about the dancing lady. I just love it when experts and professionals put out counterinformation to educate the masses, which is vital when there's just so much fake news and misleading information out there. Great video!
This AP Psych teacher is thrilled to see this video being put out there! Hooray for Sensation and Perception!
I really like that this episode wasn't as 'dumbed down' as some of the other ones. I understand there is real value in making a show like this accessible, but in that process there is often a loss of actual information, which wasn't true to the same extent for this one
Yeah! He managed to explain everything in a simple way that doesn't feel like he's dumbing down!
💯
exactly. there are ways to explain concepts to people who arent specialized in a field without just taking out the smart. simplifying shouldnt laways be dumbing it down
Agreed! (Sorry if this is Karen-ish, but awareness is important...let's try not to use the word dumb, even in quotes, as it is a slur against those who cannot speak...and although we don't mean it maliciously, it is a shot against ❤)
I would like to spend my life being surrounded by people like this. I swear no subject or topic would ever be boring.
In college, I worked in a vision psychology labs which dealt with all the stuff in this vid and more. Many people I met would find it interesting but also annoying for "ruining it" or "taking the fun out of it" lol especially when I told them the answer for the blue or gold dress when pic came out
Get a job at a uni!
There was a saying, forget who, said, if you think you are the smartest person in the room, you're in the wrong room. Or something to that effect. Surrounding yourself with intellectual and intelligent people is always a good idea
We need more people like this. Who can actually teach. As in deconstruct complex knowledge and tell it in an understandable way. This is a gift that many people lack.
I'm glad that you mentioned artists in the line illusion because when I first saw the illusion years ago I was quick to figure out that all the lines are the same length and I assumed it was because I'm a professional graphic designer
love this guy already - this is one of the more informative tech support episodes.
Oh great, one of these *ssh*l*s who educates the Derren Brown/David Blaine/Chris Angel non-Catholic involuntary lobotomy and induced narcolepsy club. F*ck this *ssh*l* and his f*ck*ng Imaginary degree!
seems like a wholesome character that Fred Armisen could play
yeah! very wholesome + instant crush
Came for the dress, stayed for the knowledge. This was awesome 🙌🏾
Same
i could tell right away how quickly Pascal blinks, as if in his mind he's trying to recall info so quickly while explaining stuff, kinda like an instant buffering, don't mean it in a bad way tho, but it's quite fascinating 'cause i tend to do the same as well
On the blue dress part: Interesting that when the actual dress was in the shot, I saw the dress as black and blue, but when it cut to a close up it flipped to white and gold. So cool. And I love that fact about morning or night people! That explains so much.
Fascinating video! Thanks so much for all this really cool information.
Wait, for real? When it cut to a closeup as he was holding the actual dress, or of the infamous photo? Thanks!
This guy confidence and how he KNOWS about what he's talking about is astonishing. Even he prepare the controversial dress and matrix glasses, lmao. Great man.
Pascal is amazing! Let's just appreciate his effort of bringing props which made the comprehension easier. Would love to see him in more videos!
You can actually see this man visualize things in his head and it's amazing to watch!
I love the way he talks. As a psychology student i rarely have lecturers who i enjoy listening to. But I'd love to go to his lectures
Oh my god this guy is a gifted teacher. What a pleasure that was to watch. Please please please bring him back for more videos.
This guy is amazing, you can tell he has soo much to say just by him talking soo fast and trying to fit his thoughts in the words. Great episode!
He just *knew* he ate when he pulled out those glasses lmaooooooo
Love the way he explains things. He keeps it joyful and entertaining and doesn’t make you feel dumb about things which helps you understand and grasp what he’s talking about better. You can tell he’s not only intelligent but charismatic in a way and has a passion for what he’s talking about. Kinda makes him really hot ngl. 😭😭
Pascal is very good at this. Fantastic instructor. I especially like that he didn't try to over explain and take the joy out of it. He didn't say "It's not trippy because..." He says "It IS trippy, and here is WHY...". Well done.
More neuroscientists/neuropsychologist pleaseee! Just freaking fascinating
Edit: can we stop with the red plaid shirt joke 😒
why is it a joke it looks nice.
Yeah I love red, it's fine
this is officially my favourite video on yt
Where all my night owls at
The face detection bias isn't only about enemies. We also crucially need others for connection, interaction, cooperation, protection. So, detecting faces, even at the risk of sometimes of sometimes "overdetecting" is also essential in a supportive way, not only a defensive.
It's also one of the first complex tricks we learn. We've been doing it all day every day since we were just weeks old.
it is ol' reliable
@@elkikex I saw on a vsauce short that there's evidence we do it Before being born.
Loved this guy.
You can definitely tell that he’s a true expert in his field.
I love the way he describes our brain evolution as "debugging"
Please do another one of these!
I could listen to this fantastic man all day long! We need more of him, if he'd be so kind to want to show up again.
Pascal isn't my favorite Fred Armisen character, but I do appreciate him none the less. He really makes me feel like he knows all that science
LMFAO
I would love to hear an explanation on how aphantasia works, since I have it. I heard most people can imagine visual images, and I can't at all, so I would love to know why my brain doesn't do that.
The dress is blowing my mind all over again because I have NEVER managed to see the picture as black and blue, ever, until just now when he showed me the original dress and then the picture right after.
I have NEVER been able to see white and gold in my life. When he was moving the printed picture around, I feel like I could for split-seconds at a time. Also, I am a night owl, like he says. Neat!
What about the thumbnail for the video? In that, I saw it as very light blue and bronze. But in the video itself, the actual dress on his desk looked clearly dark blue and black, whereas the images he showed were more like a sky blue and brown. (At least, that how I saw it.) Admittedly, when this phenomenon was all the craze a decade ago, I saw it as blue and black sometimes, and at other times, a very, very pale (almost white) blue and gold or light brown. Sometimes I was looking at the exact same image, but in one instance, it would appear one way and on another instance, it would appear as the other. The funny thing was that once I looked, looked away, and looked back at it, it's appearance always remained the same. It was only if I completely went on to something else and stopped thinking about it, but then saw it again, it would look the other way.
I never saw the white and gold and thought it was a joke. I feel so satisfied knowing I’ve been right this entire time the dress actually is black and blue. I believe using technology my entire life allows me to see what’s real vs fake
I recently came across the dress photo. I saw it twice in the same day but the color changed. I noticed my blue light filter was on when I re-viewed the photo. Turning on/off the blue light night mode made the dress change between black/blue to gold/silver at a push of the button. This likely factored in on people viewing the dress when it went viral.
It's just massively over exposed photo with 2700k lights... I put it on photoshop, make some minor tweaks and it looks just like the dress he has in the studio. Perhaps the white/gold people don't have the ability to process color like that... hence the "night vision" my brain just tells me... it's too light, so in the dark it's blue & black.
I'm completely the opposite. I still cannot see the picture as anything other than a white and gold dress even after years of knowing the actual dress is blue and black
"I'm going to ruin ducks for you" is a sentence I never thought I'd hear anyone say to me
i love that as he's holding the photo of the dress and the light is reflecting over the photo when it's titled, the image actually does look black and blue.
For the dress: I can see black/blue and white/gold, and flip them at will. I'm not entirely sure how I make them flip, but it feels like I'm focusing on bringing forward the colors I want to see, or sometimes focusing on the lighter or darker parts of the dress, and then it abruptly comes into focus as the color combination that I intended. This is also the case with the pink/white, gray/teal sneaker photo.
Admittedly, I initially saw it as white/gold, then after I scrolled down a page and back up, it was black/blue, stuck at black/blue for a few minutes, then it kept flipping nearly every time I saw it, until I could eventually see both entirely at will.
With the sneaker, I could immediately flip it at will, perhaps due to the experience I had with the dress?
Anyone else?
always seen blue and gold, sometimes white and gold
I saw blue and black years ago when it was viral. Then about a year ago, my family a spirited debate about at dinner and convinced me to see gold and white! Now I see gold and white at first, but when I recall what I used to see, I can recognize blue and black again.
i dropped a Sensation and Perception course last fall bc i didn’t realize that meant it would be neuroscience (they didn’t have many prerequisites yet as it was a new class), so this is a nice casual coverage of the neuroscience behind optical & visual illusions! i’m glad i saw this video & thanks to the professor!
I've experienced the frame rate thing myself in real life. I've woken up, really tired, on a flight and noticed the propellers spinning slowly backwards. I thought everyone experienced this.
Don’t believe I ever have, weird now I’m curious
I’ve experience it too-used to spend a lot of time staring at my ceiling fan
That was absolutely great video!!!
Really want to know more about this theme!
This was one of the best of these Wired Support videos.
10:00 Wagon-wheel effect; Street Lamps are 60Hz. Thus can induce the Wagon-wheel.
It happens to me at daylight
@@huawafabeditto with trucks
"Ruin ducks" by telling us they're all wearing cute little dog masks? Ducks just got bumped up a few points XD
This was genuinely one of the most interesting videos I've seen in a very long time.
11:06 with that thumbnail and intro I didn't expect epistomology
That ballerina illusion is soooooo frustrating! I make myself insane trying to switch direction and it seems to happen randomly and then I can't change it back.
To me it always looks counter-clockwise (guess i'm left brain, jk). Ive never seen it switch.
if you're looking to see the switch, the frame happens exactly at 1:37 when he says "changes" you can see her arm positions switch and her lifted leg is now on the opposite side
I found out how to easily switch. Instead of looking at her arms, looks at her legs. Pause when she’s facing a side and tell yourself that the legs are switched. Unpause and your brain will tell you she’s spinning the other way.
@@dccaleb5529 😯 NICE
To me is the oposite, to me it never changes randomly, but I do not have a hard time switching direction at will
I just wanna say I love the name Pascal. Blaise Pascal is probably one of the coolest sounding names out of science imo.
I really enjoyed your insight on these questions! Thank you for answering in such an informative and interesting way. Great job!
Easily one of the most interesting episodes of tech support, Professor Wallisch also seems super interesting
Really good video! Would love a part two
You forever destroyed the dress picture for me by showing the actual one. I always wondered why people said that it is blue and black. I was so sure it’s gold and white. Now I can’t unsee
it has ALWAYS been black and blue. Wtf is wrong with people for seeing something different?
@@tfulookinatm8 same i could never force myself to see it white and gold
I couldn’t believe it when he said 2/3rds of people see gold and white! I thought the vast majority were like me - seeing black and blue is just so obvious that it must be true. Laughed when I realised I’m a night owl too… 🦉
I never could see it as the gold and white. Black and blue here, and I am a night owl. I can also see the car wheels spinning backwards and never thought until now that it was not something everyone could see.
@@tfulookinatm8 the guy literally explains how or why ppl might see it differently 😅
This was the best WIRED TS I've ever seen. Please more.
Thank you, Professor! I'm still trying to learn more about my brain AND you gave me six facts that I had never heard or known before. Clearly there's a reason why Socrates never wrote anything down AND why Plato wrote in dialogues & dialectics. You also helped enrich my understanding of Plato's Allegory of the Cave - the foundation of the MATRIX film franchise.
This was an amazing reminder of why I love this field of study so much. Life is so much more than what is face value, how incredible is that?!
"user name checks out" 11:17 lmao
I could listen to this guy speak for hours. Fascinating stuff.
more with him please! i love this
1:40 For me, the image is always spinning counterclockwise. I can watch it ten times and it still appears to go counterclockwise.
You know someone is a great teacher when you are fully engaged in every moment. That's how I felt here. This man must be a brilliant professor.
I agree, he had me hooked. Lots of practical demos to keep me engaged and technical stuff my friend beside me was loving too
Wow this was amazing ❤ thank you for this ❤ I love the way you speak and how you clarified everything ❤ I am also amazed by the amounts of props you came with
I really surprisingly enjoyed this. So many of the things covered here, I've always wondered about. Great video.
Love this dude. Bring him back.
“You might die” is just amazing.
3:50 okay, only issue I got with this is that this video is at 30fps. So that 60fps example won't do anything because the video isn't at 60 😅
This!!
(the video is actually 24fps, but it changes nothing)
tbh, its much better than i expected. this guy is fun and very knowledgeable
Wait! 9:21 - this doesn't happen to everyone in real life???? I thought it was just a general principle that is something spins fast enough it'll eventually look like it's going backwards ... I need more research on this!
I didn not realise this video was as long as it is. I can listen to this guy for hours
This is amazing and I love the detail for explaining what's happening in each instance. The simplest overview I've heard about some of these is "your brain is smart, your eyes are dumb".
Thanks so much for sharing this. Very good answers!
Imagining that our brains “run on unique frame rates” is a beautiful one. Thank you for this wonderfully stimulating and educational vid!
Love to see my friend Pascal on WIRED! Such a great teacher!
This one should get a sequel
One of my favourite episodes ever, go so hooked on that those 20 minutes just flied. Illusion of time as well...
what a brilliant video, Pascal you are the goat of explaining things well enough for me to understand
Love these in general, but this one in particular has to be the most interesting I've seen. Fascinating subject, thank you wired and Prof. Wallisch!
Another kind of interesting thing is how everyone is very good at instantly counting small amounts. Like if there's 3 Skittles left in a bowl you don't count 1 then 2 then 3, you just look and immediately know it's 3. And that applies to all numbers under 7 or 8ish. The reason for that that I've heard is similar to the pareidolia where it's better to see a face that isn't there than to not see a face that is there. The reason for the numbers again goes back the prehistoric times and it's because there's a HUGE difference between 1 or 2 or 3 lions chasing you, but not much of a difference between 11 or 12 chasing you. Just another thing we've adapted to quickly and accurately analyze the important things we needed to survive
Human's relationships to numbers is actually pretty trippy all on its own...
There's an indigenous tribe in South America, that only has 3 numbers in their counting system. 1, 2, and "Many" in their language... I'm not sure where that gives your theory credibility (exactly) though I know it adds something to it...
The concept of "zero" is also fairly recent for "official arithmetic"... Negative numbers even moreso. Up until that, if you had "zero" of anything, you simply didn't have it at all. There was no need for "zero" and even after it came to academics, it was largely an academic exercise until the lawyers and accountants could start to make heads and tails out of the concept of "negative" numbers, meaning you could owe something you didn't already have and had no real expectation to speak of.
Supposedly (depends on who you ask) the Maya was among the earliest peoples to adopt a concept of "zero" as a value... ;o)
@@gnarthdarkanen7464 It isn't so much that "zero" was rejected. It is quite obvious (even to mathematicians) that someone can have no money. The discussion was if zero is a number or the absence of a number. Does your purse contain "zero dollars" or does it contain "nothing"? Or is "0" and "nothing" actually the same?
We now know that zero and nothing are not the same thing, they need to be treated as separate things.
@@HenryLoenwind can you tell me why zero and nothing should be taken separately ?
Sorry i don't know 😅
@@randomdude8327 Sure. Let me give you a simple example: "What's the account balance of your account at XY Bank?" Here "$0" and "I don't have an account there" are two very different values.
I could try to write a more in-depth explanation, but it is a bit hard to explain properly---as proven by people arguing about it for centuries ;).
Im pretty new, but he is the best guest I've seen so far! Very informative!❤
That was soooo much information.
What an awesome and smart guy!