The Roles of Your Two Brains and the Importance of Communication
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- Опубліковано 9 бер 2021
- This video was only supposed to be about split-brain patients. But the more I read the more information I found, the more the fascination grew, and the more I wanted to share it. Besides, there are already videos on split-brain patients.
Recommended viewing:
Severed Corpus Callosum - • Severed Corpus Callosum (The video seen in this one)
Split Brain Behavioural Experiments - • Split brain behavioral... (More experiments with same patient as the first video)
Curious: Split Brain - • Curious: Split Brain (This video is of an AgCC patient)
Sources for continued reading:
I read a ton of papers, far more than I could ever fit in a video so these will be ordered by helpfulness/intrigue factor
BRAIN LATERALIZATION: A COMPARATIVE PERSPECTIVE - doi.org/10.1152/physrev.00006...
Autism, lateralisation, and handedness: a review of the literature and meta-analysis - doi.org/10.1080/1357650x.2013...
Handedness and hemispheric language dominance in healthy humans - doi.org/10.1093/brain/123.12....
How brain asymmetry relates to performance - a large-scale dichotic listening study - doi.org/10.3389/fpsyg.2013.00997
Laterality and Lateralization in Autism Spectrum Disorder, Using a Standardized Neuro-Psychomotor Assessment - doi.org/10.1080/87565641.2016...
Corpus callosum and autism - mappingignorance.org/2020/07/...
Handedness in Children With Autism Spectrum Disorder - doi.org/10.1177/0031512516637021
Asymmetric tail-wagging responses by dogs to different emotive stimuli - doi.org/10.1016/j.cub.2007.02...
"Proving left handed people are freaks"
Guilty as charged!
I'm both left-handed and autistic, but I don't have language processing difficulties... I think? Anyways, I've come to collect my freak pass.
Made me genuinely lol. Use humor sparingly for bigger effect, right? Some in the comments suggested Bo Burnham’s Left Brain / Right Brain song as a follow up to this. Actually, a really great idea. A funny illustration of the ideas in this video. ✌️
@@Th3Curs3dChild : Why did you write your entire comment in Spanish? 🤷♂️ Just kidding. I’m on, “the spectrum,” myself, and I sometimes wonder if my, “specialist,” wife married me, just so she could experiment on my brain in her spare time? She’s always having me do experiments for her and filling in psychology test forms. Still, our, “tests for sex,” economy keeps us both happy. 😉 I have Asperger’s apparently. You? . . .
@@ashroskell Same. Also, I didn't know paranoia is common in Autism.... ok I did know but I was worried it was only me
I thought he was cutting himself off from say “retards” and I was not super happy about that. Thanks for clearing that up with me
"... if they want to."
His final words made me chuckle.
I've watched three of his videos now and enjoyed them all.
Thank you!
When he said, “so this means, technically, you’re a freak,” I laughed out loud. Use of humor, sparingly, has such a bigger impact sometimes. 😉
Great, informative video. Love how you reference actual research journals in your videos. Most informative youtubers just kind of expect the audience to take what they say on faith. Keep up the awesome content.
search right brain left brain song! amazing!!
More like, "we get it! Your university let's you have access to research institutions!" (Thankfully these papers are open)
The papers he cited mostly seem to be on a niche of autism research focused on brain lateralization (worth pointing out that autism is one of the most hotly debated fields in neuroscience so I wish he provided secondary opinions here), and some stuff that demonstrates biological advantage from having lobed brains. Does that really support the presentation he provides?
Also frustrating is the lack of discussion about how split brain patients are actually treated and rehabilitated instead of doing the decades old split brain patient exploitation that's practically a cliche at this point. In fact, it might demonstrate the brains are capable of so much more than whats implied in this video. The rehabilitation of these patients actually shows a lot more about how the lobes interact than simply isolated experimental proofs because it takes into consideration environmental factors. I swear students forget that medicine has a practical purpose and they're talking about real patients!
man dude the more i look into this the more i just have myself shaking my head... the way he talks correctly about research regarding autistic enervation but then talks about how this somehow proves "having two brains is useful" even though there's nothing that suggests in the video or his research that autistic people have less lateralization? what even is his point in some parts of this video... I know my responses yesterday were just me firing my cannons but looking into this i am just. why does this kind of content get popular on youtube. working with a friend to pull this one apart, its a trainwreck.
Word he's the best
Humor, used sparingly has such a powerful impact. I genuinely laughed out loud when he said, “so this means that technically, you’re a freak.” 😁
Interesting, didn't know about that dogs.Thanks for the information. The outro scene with the syringe gave me the creeps.
Yeah, I’ve been watching Benny’s tail more closely ever since. Have you? I’m also curious about my cats now, too.
I've always noticed that there was a noticeable difference between what ear i use for what... It makes so much sense now!
Things we’re vaguely aware of, yet never articulated to ourselves, float to the forefront of our thinking and become, “knowledge,” as a result of watching these clever videos. Quite a service to humanity, when you think about it like that, don’t you think?
Just found out about your channel. As a first year bachelor student, it is really enjoyable to use my just acquired 'sciency knowledge' to really understand your video's and the actual science behind it. A much needed differentiation from standard pop-science channels! Keep up te good work, you've got a new subscriber!
I've been blind in my right eye all my life, so its intresting to reflect how I react to things, I always look at something creatively first, and then start breaking down the logic of it
Interesting, I’m blind in my left eye and also autistic, I have trouble with social cues, it makes sense that since I see with my right eye, my left brain is more active, also since I can’t see out of my left side, I pay more attention to sounds coming from the left. I sometimes feel heat on my left when people are close by. Since you’re blind out of your right eye, do you feel heat in your right side when people come close to you in that direction? I’m curious
This was a really cool video explaining a lot and in a coherent way. Keep it up!
Absolutely fascinating as your videos always are.
These videos are so high quality, I'm surprised this channel doesn't even have a million subscribers yet.
One of the best channel I have found ..... Thank you ..
such a great and informative video, this channel is so underrated. Hope your youtube career will take off!
Always great to discover new channels.
I heard somewhere that learning a musical instrument has an effect on the hemispheres connecting, I can't recall all the details but it was fascinating all the same.
Playing a musical instrument shapes an area of the brain to take on the literal physical shape of a treble clef, apparently. They first discovered this, when they recovered Albert Einstein’s stolen, now sliced, brain. Post mortem, of course. A true and utterly bizarre story that not a lot of people know. Thought you might be curious, given your interest? He played the fiddle, BTW. I know, crazy, right?
@@ashroskell What
@@ashroskell Que
This video was very good!! Please continue making videos!
Very interesting stuff and wonderfully explained.
I love these videos, please contine covering a wide array of topics from biology to physics! There's way too few biology channels for entertainment lol
I wish people that disliked videos were required to have some sort of explanation as to why they disliked it. Like is info in the video not entirely true? Or do they just not like the animation style? I like the animation btw 👍🏼
A few things, although I only glanced through the video
- it gives the implication that brains usually route to specific places. While patterns are observed, brains are over all generalized machines. This is obvious when looking at how born blind people use the occipital lobe
- brains can be retrained to navigate in New unpredictable ways (a lot of studies performed on ferrets demonstrate this, and its how people rehabilitate split brained patients). The organization of the brain in two hemispheres in pop science may be socially biased. Rather most significant structure actually appears in the center of the brain. And of course the corpus collossum is part of this central structure. Difference in hemispheres happens because the organization of signals in the center privileges one side for optimization which as the video correctly points out is advantageous. realistically your brain is far, far more than two. Bilateral symmetry, which is found in most of our bodily structure, is the reason why we have two lobes by the way.
- a lot of autism research can be pretty suspect and I question the video creator's ability to understand the paper or the authenticity of the sources... Left-right brain stuff sounds more like some researchers pressured to find correlations than an actual scientific breakthrough esp since neurology is far more sophisticated. I think autistic people deserve better than this.
So yeah i think your answer is that its another pop science video taking advantage of undergraduates who dont know better by repeating misinformation and oversimplification of serious illnesses that seriously impact people's lives.
Great content. I really like your animations too!
Great insights, thank you.
I love this video so much, I’ve been thinking about this a lot as a musician, because scientists have recently been realising that the left ear is attuned to tonality, and the right ear is attuned to percussiveness and transients, due to the two brain hemispheres having different functionalities.
And it got me thinking: isn’t it fascinating how in philosophy, we always come back to concepts like yin and yang, chaos and harmony, or as Nietzche puts it, apollo and dionysos, aka order and disorder within ourselves.
And isn’t it fascinating that in greek mythology, apollo, lord of order and beauty, chose for instrument of predilection the lyre, a plucked instruments that plays percussive sounds or transient notes, whereas Dionysos, lord of disorder, prefers the flute, an instrument that plays tonal, long sounds that pitch up and down and fade in and out?
It feels to me as if our whole approach in philosophy of seeing the universe as a struggle between chaos and harmony, or order and disorder, stems from us projecting the struggle we all have/feel: to make our two brains connect and wark together in harmony and synergy
Did you know, there’s a nerve centre in your brain that takes on the shape of a treble clef the more you play instruments? Literally. And the way they first discovered this is mind blowing! Look it up. Not a lot of people know this, but Albert Einstein’s brain was stolen, (post mortem of course) and there’s a whole tale around that, which ultimately lead to this bizarre, but nonetheless fascinating discovery. Useless information. But great for the dinner table conversation.
P.S. Einstein played the fiddle, if you were wondering.
@@ashroskell
Source?
"wark"lol
@@iaimboti Just look it up, it's on his wikipedia page. You can't expect people to add a bibliography to their UA-cam comments every time they want to share a fact.
So good and complete I'm speechless, I just wanted to comment anything because, you know... Algorithm!
Nice and attractive content
Good video
9:19 I’m right handed and hold my phone to the right ear during a phone call etc., but I always remove the left side of the headset to listen to somebody when they want to talk to me
Im all over the place, im mostly right handed but can also write with my left. On the Phone/ talking to someone i mostly pull the Headset completly down, exept if i dont do that i pull up the earpiece that is on the side that the Person is at and if the Person is infront of me its random
same
What a great video, i have been thinking about this for decades :P. One interesting thing i personally always wondered is, i wonder if there is a 'frequency'/hz between the two hemispheres, and could somehow it create a balance or equilibrium and then be able to efficiently react to important stimuli while they are incoming... hmm
As they are electrical impulses, it is a physical certainty that they will have frequencies, “Hz,” (probably varying) and that these must be known, as they have been detected. QED. Therefore, it follows that they could be manipulated. The question really is; have they ever found such experiments to be efficacious? Has technology caught up yet? And to what end could you use it? I would imagine that any such discoveries would have global implications (both, “globally,” regarding the brain, not just that area, and, “globally,” planet wide) and be a well guarded secret? After all, we’re talking, “mind control,” techniques by implication. But, we could also be adding fuel to nut jobs who complain about phone towers and 5G, which would be unhelpful to human kind too?
So my left brain knows how to move my ear and the right brain is jealous.
I've never subbed so hard in my life
"...if they want to." Another great video. I like the brain surgery and it's scalpel. For whatever reason it reminds me of the scissors in the Big Lebowski dream sequence.
Fascinating . . .
fascinating! 🎧
ok, i have a question from this video. it was mentioned that music and vocals have a preferred side. if i listen to stuff like music or video on my earbuds (as example), if one of them if a bit blocked and audio does not sound like it is in the center of my brain but slightly to one side (either or) it really bugs me. can this be explained in some way due to this? as a not i am most likely on the spectrum and have adhd + dyslexia.
I’d love to know how people who have mirrored bodies (heart more to the right, liver and stomach more to the right, etc) reflect these trends
Yeah, this whole channel seems like something pulled directly out of a HFY setting.
I like your explanations and you manage to pull me in with the informationally dense presentations.
subbed.
"Hey wait wasn't this debunked?" -me
The dominance of one side was debunked, but the different roles of one side of the brain and the other are pretty clear-cut.
I disagree with the claim that the “dominance of one side was debunked”. I’m totally left brained, to the point of being completely factual and logical. I’m very smart logically and mathematically, but my social skills and spatial skills aren’t as great
@@charlesg7926 Maybe I misspoke: there isn't more neurological activity in your left brain, the right side is just as active. The myth that was debunked was that, specifically, the "dominant" side was more active than the other, rather than being better at its respective job. Didn't mean to imply that being smart with academia guaranteed that you'd be good with social skills.
7:07 For right-handled people, it may not look like the left side is dominant but it feels like to be the preferred side.
9:41 you matched the video with the music. nice
this _explains_ why some UA-camrs only put sound on the left channel
As always..🙌🏽😊
so ur telling me i'm autistic and if i become right handed ill feel more positive emotions. epic and understandable my guy.
Ummm? . . . 🤔 . . . Not telling you anything about, “you,” but, good that you enjoyed it? . . . I guess? 🤷♂️
I feel alienated at the very first seconds of the video. Im supposed to keep one ear on when someone wants to talk to me and Im listening to music? How would I be able to enjoy the song properly, or talk to someone else properly, with my attention being pulled apart by two completely opposite ends? If Im listening to a song, depending on how much Im involved in the song Ill either tell them to wait if (its not a long song), or pause the song, listen to the person attentively and then restart the song. Is this "music" supposed to be background music? Do people with headphones usually listen to ambiance mostly? Am I the weird one? Im very confused as to how this is a practical example, it seems terribly illogical and rude to split your attention to music you would put headphones on for and to someone inquiring you.
for the past half a year ive become increasingly convince that i have autism since i have most of the symptoms. while watching this vid i remembered that a few times in my teenage years where i was sleep deprived, stressed and overstimulated & i would have instances, either when fully awake or falling asleep, where my consciousness would split into two. It felt exactly how it sounds like. I had one dominant consciousness with a certain thought train and less than a second after i would remember what happened simultaneously in my other consciousness and it was one of the weirdest phenomena my brain has conjured.(ive had other weird stuff happen) Im not sure if it proves that i have autism or if it even really is the two hemispheres failing to communicate or if its something else.
Despite your grammatical shortcomings, you seem to be articulating your experiences too well for an obvious autism diagnosis? However, if you want to know more about what’s going on in your brain, you could take online tests for universities and hospitals? You’re helping them, by adding to their data sets, and they’re helping you, by giving you the information you’re looking for. Just keep in mind, if it’s a label to describe your condition/s that you seek, that’s the easy part. If it’s understanding, and potential, “cures,” you’re looking for, that’s way more complex. Not impossible; just requires honesty, commitment and embracing the idea of overlapping complexities.
I'm also autistic and have ADHD and anxiety as well. It was really interesting to me.
@@ashroskell What do you mean by "articulating too well for an obvious autism diagnosis"? I'm diagnosed with Aspergers Autism and I have no problems articulating myself in any way. Could maybe explain further?
@@thunderfox4977 I've also raised an eyebrow when he mentioned "articulating too well". It's written text, there is nothing to articulate!
@@ashroskell What do you mean by "articulating your experiences too well for an obvious autism diagnosis?"?
This video is pog.
FYI, at 0:28 it has quantitative spelled "quantatative" and sequential spelled "seqeutnial." Those spellings are repeated later, too. Seqeutnial is the more confusing. Took me a while to figure out that it was supposed to be sequential.
From watching documentaries about split patients years ago, I've got this idea that we all actually have two personalities in our head, where the dominate one is us, and the other is a slave enclosed in the body with only limited ways to communicate with the outside world. This could also explain the positive and negative side of the brains. To me this explains a lot about the way people act.
Does this correlate with higher aggression in left-dominant people?
alright fine I'll subscribe
Me and the boys administering anaesthesia to the right hand sides of our brains in order to experience a feeling of euphoria
Our good old dyslexic term, "Seqeutnial" (sp), makes a repeat appearance in this follow-up video about the brain's asymmetry, at the 0:29 second time point.
I am right handed, but I take out my left headphone and leave the right one on. I do lots of things "backwards" from other right hand dominant people. I keep my wallet in my right rear pocket, I wear a watch on the right hand.
which way do you hold a knife and fork?
@@SamualN knife in the left, fork in the right
@@The1andOnlyWog the way it should be :)
Is the role of the two brains flipped in people with Situs Inversus?
I didn’t know that about dogs, very interesting
Regarding the corpus callosum: it agenesis (a-genesis ie, did not form in utero) not “agnesis [sic]” (ag-nee-sis as pronounced in the video)
What about savants?
5:37 WAT, HAHahahahha amazing you left that in 💯
Is good.
I'm a non-right dominant person who just watched this entire video with my left ear bud in, only for you to predict what side my ear bud was gonna be in at the end.
But why do I always hold my phone to the left ear if I'm right-handed?
I'm autistic and I can have a really hard time verbalizing what I'm thinking. I'll restart multiple times as I consider other aspects or ways to say something or ways something could he misinterpreted
i'm right handed but left eye dominant. makes it hard to shoot guns and impossible to draw and aim a bow.
i wonder if there is a benefit to cross eye dominance?
I also naturally hold phones to my left ear, although when I used to wear headphones at work I would take out the right one to listen to people.
Same here with the cross eye hand dominance.
Do "left handed" dogs exist and do other dogs get confused by them?
I wonder if I could try and train my phantom sense to help me concentrate on the muscles that would theoretically let me wag my tail to the right if I had one, and if I practiced trying to wag my tail to the right long enough if it would have a noticeable effect on my mood...
science lol
Your delivery of the joke about left handed people wasn’t good but it’s a funny joke thinking about it😂
@@dariuszb3860 Are you sure you're not also part of the autistic community?
I must have every disease because when someone tries to talk to me while I’m listening to music I free the left ear
ive GOTTA find a way to split the music bot's music and my friends' voices into the left and right audio channels in discord calls
Huh, I always take off my left ear cup... wonder what that means?
I nearly always put the phone to my left ear, but I’m right handed. I think this makes me either not particularly interested in the content of most phone calls or what is technically known to science as, “a freak.” I know which my wife would choose 😉👍 Fascinating stuff. Truly enthralling.
Then... Why do I usually free up my left ear? Even when it's the one farthest from the person I'm listening to?
I actually have to take both headphones out to listen to people speak otherwise i have trouble hearing them. Wonder why that could be?
There are tests you can take online to find out? And you would be helping institutions and universities by adding to their data sets. Just be sure you’re doing them for a respectable institution and not some bogus advertising agency. ✌️
Hearing problem, probably
This is why I think AI won't be about creating single entities, because intelligence never was about single entities. We need to create multiple, distinctive systems that work together in a similar way to the brain.
AI would work as a hive mind like insects. Each individual entity would communicate with each other as one larger entity creating an intelligence, if each one had a different purpose to be able to functionally work together similar to a brain.
@@Turgz It would be like a nation of people, except no arguments, no inner strife, no power struggles, and so efficient no one else could keep up. Think Nazi Germany during WWII, but better in every respect, making them terrible for us. If flawed humans could take over Europe, AI could take over the Earth.
That's... kinda how it works already. Obviously the same system that does one thing can't do other things; you need different, communicating systems if you want it to do multiple related things.
Few people seem to be able to really listen and talk at the same time.
For a long time in my life i listened to music, played video games or however else listened to something coming from my headphones with my right ear. Also, any time I need to hear someone and take out one headphone, I always prefer to take out the left one. Despite that I'm strongly right handed, doing only a small number of tasks as well or better with left hand. And by feel I can tell that I can very well process the language, study it and so on. In fact, I learned English as my second language in a country with very little use of that language, while growing up, by myself. So I find it strange. One reason for that, I presume, might be that for a long time i used headphones exclusively while using PC and the circumstances and the layout of the room made me frequently uncover my left ear in order to better hear someone talking to me, or hear someone's approaching.
I am righthanded yet i always take of my left earphone to listen to someone even if thats in the opposite side of where they are
I have Asperger's and am left handed. Ever since I was around 13 I have hypothesized that there were more left handed among people with autism due to there being multiple in my class at the time.
I have however never heard anyone else thinking the same thing until now.
Can you link specifically to the paper on anesthesia for left - right, positive - negative emotion? I cannot find it and find it fascinating!
It was discussed in the main paper. journals.physiology.org/doi/full/10.1152/physrev.00006.2019 in the section "B. Sadness and Hope: Brain Asymmetries in Emotional and Social Processing Across Vertebrate"
But the paper cited for that section is this one link.springer.com/chapter/10.1007/978-3-7091-4702-3_6
@1:22 Ahhhhh! Does the knife really have to be bloody looking?! I grew up on gory video games but now I'm a grown up with two kids... Please!
I have to update my dual-processor it's to slow, quad-processor might be better
pog video :)
what i find interesting is that on your theory of the left brain processing positive emotions and the right brain processing negative emotions is that i (an autistic individual for what it's worth) seem to have it the other way round? with the left brain processing negative emotions and the right brain processing positive ones.
how can you tell?
I'm left handed and I died at 5:38 including snorts
This basically just covered everything I learned from AP psychology about this topic.
I usually free up my left ear, and I’m right handed.
Wait a minute.
I'm strongly right handed but I always talk with my left ear
So what is happening?????
This is interesting, when i was listening to my left earphone only, i often find myself confused and easily distracted. But when im listening to my right earphone only, i found myself being able to grasp the context in detail pretty easily.
Same it’s nice to finally have an explanation
I'm deaf in my right ear. This explains why I'm so bad at listening to spoken instructions.
It's cool how our brain has hypertheading. Lol
Me, cringing at the sight of the guy getting a syringe jammed in his scull, because i am an empath my heart.
Interesting about the whole ear preference when multitasking with listening to something on headphones and something external. As I recall the last time I needed to pay attention to something someone was telling me while I had headphones on, I took off the left cup instead of the right while the video says it's typical for someone to take off the right side cup. I will say I am left handed and also Autistic so probably good factors in that. I wonder if any others have left ear preference with headphone multitasking?
Oh and I take off the left side of headphones to use my smartphone when doing something like checking voice mail. Maybe left/right hand dominance factors into that as I do put phone to my left side. I rarely ever use a smartphone on my right ear regardless of headphone use unless there's something physically preventing me from using it on my left easily. (like using left hand for writing)
I also wear my watch on my right wrist which is another thing left handers tend to do and I've been able to spot other left handers this way. :D
I really wonder what happens to YOU when you have such a surgery. Would it be like you become split between the two halfs of the brain or are you only one side of the brain? Kinda a werid thought.
Ngl I wanna sever my Corpus callosum. I wanna meet my other half.
*SEQEUTNIAL PROCESSING*
as a right hander i always wondered why my left ear was so much better for interpreting music, despite both ears 'sounding' the same while I'm listening. I'm a music producer, mixing engineer and headphone designer so this always stood out to me. hard to trust the ears sometimes
Feels wierd watching this being ambidextrous.
I didn't know almost all people favour one ear over the other for example.
Hmm...From this, I deduce I am, apparently, right-brain dominant. I like having the headphones or phone in/on my left ear and have a hard time understanding people if my left ear is blocked... The more you know.
This video blows gcpgrey out of the water
a super scalar processor☝🏻
I wonder what happens to the brain functions if somebody suddenly becomes left handed after being right handed due to an accident. Does the brain re-adapt and switch sides or does laterelization itself messes up?
Weird, I listen to music in the right ear and am right handed
Back in the 80s while studying drawing using Betty Edward's book Drawing on the Right Side of the Brain I seem to remember her making the comment that in males and females the corpus collosum develops differently, that males can only operate in one hemisphere at a time, shifting quickly between them but females can operate in both hemispheres simultaneously. Has this conception become outdated?
I need somebody to use anesthesia on my right hemisphere....
I’m left handed and listen with my right ear.
We are dual core processors.
I'm right handed and I hold my phone up to my left ear with my left hand.