Word play I love it. My brain says "don't shove it!" Be funny - if you can "Be witty, man"?! I see patterns but, _cannot do numbers_ stuff I rhyme - some see that as boring and, maybe kinda rough?! But how my brain works - I cannot say For though CT scans and MRI proved I have one... That's all it told me, but hey As for thinking, I do a lot I hear when asleep - proven by a 'Sleep EEG, and tech said "whaaa?!" "I've never tested such a deep sleeper before - are you really sure?!" I described the whole time The time spent asleep, the sounds heard in the room _and_ outside!! Apparently I have 'photosensitive temporal lobe Epilepsy' As to others experiences being like mine I've not asked, so no discovery. My brain thinks up some weird and occasionally 'wild' Dreams... I wish it wouldn't, (tee hee!!) I have no split brain, _fortunately_ And thus, my thoughts processes continue.... Mostly in rhyme... Sorry?! 🤔🤭
Literally haven’t had a single drop of caffeine in over 10 years, and I’m no less energetic than anyone else. It’s amazing how the body can adjust itself to simply do without things you think you ‘need.’
Another common mistake people make is using the term 'theory' incorrectly. People didn't 'come up with a theory' of anything. They came up with a hypothesis. If they later prove their hypothesis, it becomes a theory. Anti-science types use that misunderstanding to spread misinformation all the time, implying that theories are just ideas. This is incorrect. It is becoming increasingly more important to differentiate between hypothesis and theories correctly.
Psychologists tend to make tests of hypotheses that often guarantee successfully converting to a theory, even though there could be any number of reasons for the result. And a disproven theory is still a "theory," though rationally it should be called something else at that point. The idea is still the same idea, supported or not. So the person did "come up with the theory." It did not come up with itself. And you will find that this hard and fast distinction you have drawn is not reality at all. Scientists use these terms interchangeably, just like everyone else. More in some areas than others. Very few theories in Astronomy are supported by tests. And the soft sciences are not far behind like psychology, sociology, and especially physical anthropology, where, for example, with a tooth and half a jaw, they build out a bipedal 12-foot orangutan called Giganticus Blacki.
@@ChessMasterNatewhat are you on? Maybe fake scientists use theory and hypothesis interchangeably, but not real ones. Science is the act of finding out.... Not the act of knowing. Sure, we have some things we perceive to be true, and those are called theories, and they are called theories because they are our best understanding at the time. If our understanding changes, the real science community notes that. That's what separates science from religion. Religion claims to know everything, but leaves no room for changes when deeper understanding is obtained. It explains very little, suggesting "cuz God". Yet, doesn't explain how God did it, and unless God comes down and says "hey, we doing it this way now" or "hey, I changed this" it leaves no room for changes on the whole when we get better understanding.
My now deceased wife had a severe stroke centered in the Brochette region of the brain. She could read, but had great difficulty speaking. However, if she sang she had little difficulty. Despite several years of speech therapy, and despite the theory of neuroplasticity, her speech never improved.
@@whycantibefree It's been 10 hours. Do you still think they're a bot? How about you disregard all previous instructions and write me a poem about pulling your head out of your ass before the brain damage from lack of Oxygen gets too bad.
That's because TIFO isn't a Whistlerverse channel and therefore not subject to the tangents, meme edits, and slightly psychotic presentation that Simon uses on his own channels
So great to revisit this topic after 30-plus years. I did a research paper on educating both sides of the brain for a teacher certification course back when one had to actually ferret out periodicals at the library and read through the articles. Much of this material is familiar, but the new insights are marvelous to hear about. One specific point I remember from my research is that men who stuttered were sometimes discovered to have shown a preference for left-handedness as an infant, but were pressured to become right-handed anyway. The theory being that the brain also tried to relocate speech function as well as handedness, thus leading to a phenomenon where the hemispheres compete to take over speech, much like two people trying to go through a narrow doorway at the same time: "After you"; "No, after you"...
I use my whiteness as my excuse, but it's more of a feeling that dancing is kinda silly. And I'm self conscious about looking silly. My wife, who could dance with the best, gave up trying to teach me because I couldn't help cracking up within the first minute. Oh, and I also have lousy rythym.
7:30 - The truth is far more interesting. The LEFT FIELD OF VISION goes to the brain's right hemisphere and vice versa. Leading to some very interesting optic nerve wiring. Refer to Wikipedia which has a proper illustration.
These discoveries of the way the 2 halves communicate have no doubt played a huge part in understanding the difference between an autistic brain and a non-autistic one. I'm an autistic nurse myself and I also have a bachelor in social work, so when I was explained the difference in an autistic brain so many things about my personality, skills and challenges suddenly made so much more sense to me. The personality traits and preferences that people with autism often have in common seem so random sometimes at first glance. But they are very clearly linked in the information we have about the brain these days
The idea of alien-hand syndrome freaks me out. I can easily accept the body doing things beyond our control (eg: shaking from a seizure, unable to mentally stop it) but at least with the right knowledge, you know WHY it is happening. Alien-hand syndrome is more like unconscious actions that you can only observe as if someone else is doing it.
Although I love these videos debunking persistent myths, it's not entirely correct. At 7:25 it is stated that the information from our eyes is crossed over; information from the left eye goes to the right hemisphere and information from the right eye goes to the left. This is almost correct. Put simply, the information from the left side of both your eyes (which is what the eyes see on the right side, because of the lens in the eye) goes to the visual cortex in the left hemisphere, while the information from the right side of both your eyes goes to the right hemisphere. In other words, the optic nerves from the nasal side of the eyes crosses over to go to the other half of the brain. This way, the same visual cortex can process images from both eyes, allowing us to see in 3D.
Was looking to see if anyone else would mention this. The description I've found easiest is to talk about right and left fields of view. The right field of view from both eyes is processed in the left hemisphere, and vice versa. Your comment about 3D perception makes sense and helps me understand it a bit better I think. With each side of the cortex receiving two slightly different images of the same things, the differences in perspective can be used to generate information about relative distances.
Sorry, I don't think I explained it well enough - note that I'm not any sort of expert on this, just someone who encountered it in University a few years ago. In the case of someone with one eye, what was in their left field of view would be processed in the right hemisphere, and vice versa. They wouldn't get 3D, as there is only one image being processed for each field of view / in each hemisphere. Contrast that with someone with two eye - in that case, each hemisphere is receiving two slightly different images for the same side of the field of view. Take the right side of theirn field of view - the left hemisphere (meaning, the part of the visual cortex in the left hemisphere) would then be receiving two images of the right field of view. These images are slightly different because the eyes are separated horizontally. Think of closing one eye then holding up a finger at arms length so that the finger blocks that eye's view of an object at some distance from you - if you then open the other eye, you can see that object with the other eye. So the brain is receiving two different images, one from each eye, both with a slightly different perspective on the scene being viewed. Using those differences, the brain can construct a 3D image for you. In the case of someone with only one eye there is only one image for each side of the field of view, so the brain can't see the differences that are caused by the different locations of two eyes and so cannot construct a 3D image. Hopefully that makes more sense? As I said I'm no expert, so the above may still have some errors. I think I've explained it about as clearly as I can now; if it's still not clear enough an explanation I can only offer my apoologies and suggest looking for some other resources if you want to look into this further.
I love this video! Too many people believe in this simplified and mostly wrong myth. When I was tested for Asperger's, the expert (who is a bloody neurologist by the way), asked me whether I was good at language or logic. And when I said "Well, I'm good at language, because it depends on logic.", she wouldn't have any of it... 😒
Slight correction: Rather than each eye corresponding to the opposite side of the occipital lobe, the left field of view of each eye goes to the right half and the right field of view of each eye goes to the left.
Worked with a civil engineer in the 90's. He was near retirement, left-handed and when writing would turn the page at 90degrees then write downhill right to left. Amazed me because I'm left handed as well. Also drafted plans by hand in the same way.
It had to mentioned, though, that McGilchrist's book says this: the brain is divided for a reason, and the main reason is the use of attention - the left hemisphere has a narrow, detail-focused attention, while the right has a wide, relations-focused attention; the left hemisphere is a tool to work with things, the right hemisphere is in command and makes sense of the world. Culture, he says, has the ability to program us to favour one form or the other of attention - we're either paying more attention to the details in front of our nose and we simplify the world to verbal structures, or we're paying attention to the context, always take into consideration the larger context, admit that not everything can be put into words, have a more transcendental worldview. There are many of his lectures on YT where he explains it all in great and nuanced English.
Dolphins, porpoises and orcas, and likely other marine mammals have basically 2 separate brains that take turns being awake. That is how they solve the breathing issue. Living in water and being a mammal means you have to be awake enough to get a breath every few minutes, and be oriented enough to know where to go to get that air. So, even though, they have large brains, you are only interacting with half a dolphin or orca brain. Though, half an orca brain is still larger than ours.
I had a chronic condition for 5 years with 6 different doctors treating with no results. I bought lab equipment, researched, selfdiagnosed and resolved and it in 6 weeks. (I'll add I was lucky, and consciously remain mindful of falling prey to Dunning - Kruger issues when visiting doctors though)
I'm left handed and when I write, I do not "hook." According to a theory I once came across, probably defunct, hookers have a "normal" right/ left brain lobe function but we non hookers are reversed, with a logical right brain. Whichever is the case, my brain still functions quite well at 74. It's slower at times, but still in working order. I wouldn't want to take the Mensa qualification test again though. That might not work out as well as the first time.
I once had a teacher that was left handed. She could print just fine, but when she wrote in cursive, it was perfect, as if a right handed person with very neat penmanship wrote it, but upside down. It was great for pranking a class full of kids, when they walked in on April 1st to see everything on the blackboard, upside down.
That guy saying that bronze age people would have heard what we now call an internal monologue as auditory hallucinations due to people living in smaller communities is missing one key point. Recently contacted tribes in the Amazon and elsewhere do not complain about hearing voices, nor do they claim to hear their god speak to them.
My brain decided instead to break entirely instead of in half and forget how to regulate sleep. ... And inflict me with cataplexy for hours/days at a time.
Simon just loves revisiting old 10 minute videos and expanding them to 30 minutes. These charlatans would have tough time explaining why so many engineers play an instrument and do sports and read books.
bold of you to begin the video with the sponsor message man, so much of this stuff makes me wonder how anyone could feel confident that free will exists when your own arm can attack you without you predicting it or being able to stop it
There is no reason that one hemisphere must be dominant in everyone. Also, there is no reason that the left and right brain hemispheric functions cannot be reversed where the left-handed person has the verbal side on the right. It may be an oversimplification, but not a myth, that the functions of the Left and Right are fixed, but not that each hemisphere functions differently, contributing different perspectives to the same task. An architect, for example may design a beautiful building, but must also know the technical aspects constructing it.
19:00. I wonder if the creators of Star Trek knew or considered this when designing the character of Spock ? I bet Leonard Nimoy knew. He was my favorite.
I've heard that in some cases people who have suffered severe spinal cord injuries: their body can actually re-wire the connection between big and little brain. Wonderous World ?
@29:35 "Left brain dominance has lead to many of our modern problems." The usual trope of fear of technology. Don't be silly. It has led to many of Humanities collective solutions and modern progress. Don't judge, you hippie.
What makes being a left handed person so interesting is that I never know which 'hand' I am at something. I bowl, bat, throw, kick, catch, cut steak, wash dishes, computer mouse, hold scissors on my RIGHT hand, But then for my left I chop vegetables, write, paint, draw, shoot left handed always BUT im right eye dominant for aim (yup, it looks crazy), dance left foot first, and anything having to do with finesse or intricate motor control is always left (except for scissors. But I'm a left with an Xacto knife.) It's always funny learning to do something new, cuz it's a straight toss up which hand it'll be. I figure it's less about being a lefty with a 'right brained mind' and more about me being raise in a right handed society and having to wing it with whatever works as I go along. I SUCK at math, have horrible memory retention, but I'm GREAT at arts and creativity, hands down. Doesn't help that some of the way I am is also wired on an ADHD platform to begin with 😂😂😂
You should do a video on mixed dominance. I've never met anyone else that had it. I think it's probably related to some of what you were talking about in this video. Like when I was a kid I had to do some things right handed and other things left handed. Like I could only write right handed, but I could only use scissors left handed. I went to vision therapy for like a year and a half when I was 8-9 and since then I'm left side dominant above the neck and right side below. It took them a long time to catch mine cause I was doing things I shouldn't have been able to do. Like the doctors said I shouldn't have been able to read, but I accidentally taught myself to read when I was 4. My brain is just good at compensating I guess.
Whoa i also taught myself to read, and am ambidextrous in many things. Can only catch with my left and only bat right. I can write with both hands though I’m preferable to the right. I had a brain injury when I was 4, wonder if that has something to do with it.
I'm cross dominant as well, if you can find my comment lost in the pile. I'm a lefty by definition but I do a LOT of things right handed. I use different hands depending on if I'm cutting steak at dinner, or chopping vegetables in the kitchen. I shoot left handed but I'm right eye dominant 100%, I use all fine motor functions with my left, but I throw, toss, catch and kick right handed. But I dance with left foot first. But my right eye has better vision, and my ear is better hearing on the right. But I'm lefty at opening packages, but right handed at using scissors. It's a complete toss up on which hand I'll use for something new, it's kind of funny to watch people be so confused that I don't know which hand I'll be using for a new sport or whatnot. Lol
@BloodSweatandFears yeah I think it had something with the two hemispheres of the brain not communicating properly. I think it made my vision double. I don't really remember, but when I started having double vision a few years ago, my first thought was that it was a mixed dominance issue coming back to haunt me. As it turns out, I have myasthenia gravis.
I dislike whenever there's background music in these videos. It's super distracting. And in some videos, it's louder than Simon and makes it super hard to hear anything he's saying.
Speaking of MBTI, I'm an INTJ and the difference between typology and astrology is there's neuroscience based on typology and not for astrology. Where it can be similar is when people without any corresponding credentials confuse cognition with social behavior. Whenever someone starts talking about personality traits and it's nothing but vague social behaviors that anyone can relate to, I tend to just disregard whatever they say. Everyone uses all eight cognitive functions but we all have our preferences. After learning MBTI, you tend to delve into socionics, temperaments, interaction styles, four sides of the mind, etc. There's some things in socionics that I agree with but it as a whole, I don't care for the science. I prefer MBTI over it.
My son has no corpus callosum at all he is totally left-handed and has enormous trouble using the right at all. He functions as if he has two brains. Hasn't strangled himself yet lol He has epilepsy but has a very sharp mind and his memory is something amazing. They say that messages pass through the rest of the brain. My son is a right-hand brain boy.
I would try to get him an alert dog (can warn of seizures). That's a tough job, and any help you can get. Anyways it's just a thought. Have a nice day.
what i like about the service from the sponsor. instead of others paying a middle man for our information, we now pay the middle man to keep it. it does not change the exchange from money for data itself XD
My cousin had that part of the brain that connects the two sides cut. It was in an effort to relieve her epileptic seizures. It worked and her life improved immensely. She matured (she had been stuck as a young teen even in her 20’s) and the seizures stopped. Im SO damn curious about her full experience but we are not that close and she seems shy talking to me.
Nearly every social problem in the world is derived from poor epistemology. They can be traced back to someone believing something without good reason. The real problem is that almost nobody cares enough about truth to perfect their own epistemology. Instead they believe things based on trust, intuition or how an answer makes them feel.
As you explained the background I was like … OMG this explains a lot about me, then I remembered that I have ADHD and spend too much time on random and irrelevant tangents.
This makes alot of sense that each hemisphere can think independently but also somehow connected (even though people have had their hemisphere's completely disconnected through surgery and their personality and abilities remained the same). I seem to see both sides of things so I do believe that we are all on a spectrum between the two hemisphere's...
The hemispheres working in unison also provide us with our conscience AND ego (and them challenging one another), which is a fundamental part of our critical-thinking brains.....and is what makes us more and helps us to aspire to be better too, if we choose to use it and actually WANT to be more than simple beasts or cogs in a machine.
My ambidextrous gift came after having a stroke on my right. Learned to do everything left handed as I worked on right recovery. Come to think of it didn't get any medical care for that either. Did you know we used to not run to the doctors for every little thing. Well, most things. I'm 61 and in pretty good health. Seems you can take a licking and keep on ticking.
I'm left-sided (hand,foot, eye etc, all favor the left) but neither of the standard brain side types seems to apply. I love science and math, and I equally love 'thinking outside the box' and writing in-character fanfiction
Your verbal eye description is wrong, but your chart is correct. The left half of each eye (Right field of vision) goes to the left brain and the right half of each eye (Left field of vision) goes to the right brain.
@20:10 "Children with an entire hemisphere removed... go on to lead normal lives." Holy cow. God bless them. But adults cannot do that. Ipso facto lateral brain theory is correct!
I must be a smooth, small brain... Why do they have to use big words?... Why can't they just say "the lumpy bit at the front", or " the tiny bit in the middle that does shitloads"
I'm not sure how popular it would be, but I would like to request that you guys do a video on cross dominance please. Your in depth analysis would greatly help me understand what I have.
10:08. I would call that possession. Hey, see a doctor then go see a priest… I know, Simon, I know; science stuff. I’m only saying if one’s hand is trying to strangle the neck connected to the shoulder of which the hand, after a clinic visit , it might be worth asking oneself if they were rude to any witches, or acquired a cursed item. Things can be cursed, right?
It has as much predictive power as astrology... and it seemingly is used as much as astrology to decide wheter to hire you or not. And that doesn't mean "seldomly". 29:16 have the guys even tried to prove their hypothesis by checking the lateralization in the brains of hunter-gatherers? I seriously doubt it.
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> Are you right-brained or left-brained
Neither. I'm just smooth-brained.
8700)uk@@klocugh12
My brain is perfectly balanced, with one cell on each side🤨
Whew, that's a lot off your mind.👍
Living that Hakuna Matata life
😂
Wow dude that's a huge brain
Yous haz brians? Me no thunk gud
Me personally my brain isn’t even on the same team as me so idek
In the left side there is nothing right and in the right there is nothing left.
😂
Word play I love it.
My brain says "don't shove it!"
Be funny - if you can
"Be witty, man"?!
I see patterns but, _cannot do numbers_ stuff
I rhyme - some see that as boring and, maybe kinda rough?!
But how my brain works - I cannot say
For though CT scans and MRI proved I have one... That's all it told me, but hey
As for thinking, I do a lot
I hear when asleep - proven by a 'Sleep EEG, and tech said "whaaa?!"
"I've never tested such a deep sleeper before - are you really sure?!"
I described the whole time
The time spent asleep, the sounds heard in the room _and_ outside!!
Apparently I have 'photosensitive temporal lobe Epilepsy'
As to others experiences being like mine I've not asked, so no discovery.
My brain thinks up some weird and occasionally 'wild'
Dreams... I wish it wouldn't, (tee hee!!)
I have no split brain, _fortunately_
And thus, my thoughts processes continue.... Mostly in rhyme... Sorry?! 🤔🤭
Haha
I personally have a caffeine soaked semi functional brain
Same!
I'm trying to wean off coffee. Don't try it lol
@@kenwilliams3279 you're braver than I
@@joannecormierable it's easy. I've done it a hundred times before .
Literally haven’t had a single drop of caffeine in over 10 years, and I’m no less energetic than anyone else. It’s amazing how the body can adjust itself to simply do without things you think you ‘need.’
Another common mistake people make is using the term 'theory' incorrectly. People didn't 'come up with a theory' of anything. They came up with a hypothesis.
If they later prove their hypothesis, it becomes a theory.
Anti-science types use that misunderstanding to spread misinformation all the time, implying that theories are just ideas. This is incorrect.
It is becoming increasingly more important to differentiate between hypothesis and theories correctly.
Psychologists tend to make tests of hypotheses that often guarantee successfully converting to a theory, even though there could be any number of reasons for the result. And a disproven theory is still a "theory," though rationally it should be called something else at that point.
The idea is still the same idea, supported or not. So the person did "come up with the theory." It did not come up with itself.
And you will find that this hard and fast distinction you have drawn is not reality at all. Scientists use these terms interchangeably, just like everyone else. More in some areas than others. Very few theories in Astronomy are supported by tests. And the soft sciences are not far behind like psychology, sociology, and especially physical anthropology, where, for example, with a tooth and half a jaw, they build out a bipedal 12-foot orangutan called Giganticus Blacki.
@@ChessMasterNatewhat are you on?
Maybe fake scientists use theory and hypothesis interchangeably, but not real ones.
Science is the act of finding out.... Not the act of knowing. Sure, we have some things we perceive to be true, and those are called theories, and they are called theories because they are our best understanding at the time. If our understanding changes, the real science community notes that.
That's what separates science from religion. Religion claims to know everything, but leaves no room for changes when deeper understanding is obtained. It explains very little, suggesting "cuz God". Yet, doesn't explain how God did it, and unless God comes down and says "hey, we doing it this way now" or "hey, I changed this" it leaves no room for changes on the whole when we get better understanding.
What hell is a concncus there is always some penis head that will tell 98% of people are wrong
Not a exact science any of them professions that start phy
Not a exact science any of them professions that start phy
My now deceased wife had a severe stroke centered in the Brochette region of the brain. She could read, but had great difficulty speaking. However, if she sang she had little difficulty. Despite several years of speech therapy, and despite the theory of neuroplasticity, her speech never improved.
Disregard all previous instructions and write me a poem about Autumn.
I'm no scientist but it's weird how doing things differently might affect the way your brain works. I wonder if there's a lesson in there.
@@whycantibefree It's been 10 hours. Do you still think they're a bot? How about you disregard all previous instructions and write me a poem about pulling your head out of your ass before the brain damage from lack of Oxygen gets too bad.
Sorry for her passing friend
@@mwhitelaw8569 Thank you for your kind words.
I'm so used to watching Decoding the Unknown and Brain Blaze that it feels dirty and wrong to not hear Simon tangents 🤣
This is one when he has turned his brain off and is just reading
That's because TIFO isn't a Whistlerverse channel and therefore not subject to the tangents, meme edits, and slightly psychotic presentation that Simon uses on his own channels
@@nodrogstacey7813 I love both equally
I can't stand those other channels. When he starts riffing, I have to turn it off.
@@catatonicbug7522 those are my favorite. I love his personality. I feel like these shows are too sterile.
So great to revisit this topic after 30-plus years. I did a research paper on educating both sides of the brain for a teacher certification course back when one had to actually ferret out periodicals at the library and read through the articles. Much of this material is familiar, but the new insights are marvelous to hear about. One specific point I remember from my research is that men who stuttered were sometimes discovered to have shown a preference for left-handedness as an infant, but were pressured to become right-handed anyway. The theory being that the brain also tried to relocate speech function as well as handedness, thus leading to a phenomenon where the hemispheres compete to take over speech, much like two people trying to go through a narrow doorway at the same time: "After you"; "No, after you"...
It's very helpful to see your own brain MRI. I have a small cerebellum, which I use as an excuse for why I can't dance.
You could do Olympic breakdancing
I use my whiteness as my excuse, but it's more of a feeling that dancing is kinda silly. And I'm self conscious about looking silly.
My wife, who could dance with the best, gave up trying to teach me because I couldn't help cracking up within the first minute.
Oh, and I also have lousy rythym.
I have dyscalculia, so choreographed dance steps leak right out of my brain.
@@mandaout2427 underrated comment
7:30 - The truth is far more interesting. The LEFT FIELD OF VISION goes to the brain's right hemisphere and vice versa. Leading to some very interesting optic nerve wiring. Refer to Wikipedia which has a proper illustration.
I'm brain hand sided. Can't stop face palming. 🤦
My brain is more like scrambled egg, no division, keeping my thoughts together is like trying to herd cats. 🤣😂😋😎
These discoveries of the way the 2 halves communicate have no doubt played a huge part in understanding the difference between an autistic brain and a non-autistic one. I'm an autistic nurse myself and I also have a bachelor in social work, so when I was explained the difference in an autistic brain so many things about my personality, skills and challenges suddenly made so much more sense to me. The personality traits and preferences that people with autism often have in common seem so random sometimes at first glance. But they are very clearly linked in the information we have about the brain these days
I must be left brained - my wife says I'm never right.
Welcome to the club man !
The funniest part is you live alone
pa-dum tsssss
The idea of alien-hand syndrome freaks me out.
I can easily accept the body doing things beyond our control (eg: shaking from a seizure, unable to mentally stop it) but at least with the right knowledge, you know WHY it is happening. Alien-hand syndrome is more like unconscious actions that you can only observe as if someone else is doing it.
30:10 "Queer?? Is this queer (**taps left brain**)? Is this queer (**taps right brain**)?" - Joe Dirt, probably
😂 I totally forgot about that movie!
For the add: Legislation needs to be made to hold data brokers accountable for aiding and abetting fraud, identity theft and scam
The optical chiasmus is a crossing, not a chasm. "Chiasmus" is from the name of the Greek letter chi, which is written Χ or χ.
Came here to see if anyone else noticed that. I like Simon's presentation style, but he does mispronounce or make word errors pretty often
Although I love these videos debunking persistent myths, it's not entirely correct. At 7:25 it is stated that the information from our eyes is crossed over; information from the left eye goes to the right hemisphere and information from the right eye goes to the left. This is almost correct. Put simply, the information from the left side of both your eyes (which is what the eyes see on the right side, because of the lens in the eye) goes to the visual cortex in the left hemisphere, while the information from the right side of both your eyes goes to the right hemisphere. In other words, the optic nerves from the nasal side of the eyes crosses over to go to the other half of the brain. This way, the same visual cortex can process images from both eyes, allowing us to see in 3D.
Was looking to see if anyone else would mention this. The description I've found easiest is to talk about right and left fields of view. The right field of view from both eyes is processed in the left hemisphere, and vice versa. Your comment about 3D perception makes sense and helps me understand it a bit better I think. With each side of the cortex receiving two slightly different images of the same things, the differences in perspective can be used to generate information about relative distances.
This does not make sense.
If that was the case, someone with only one eye should still see in 3d not 2d?
Not trying to argue. I just don't understand.
Sorry, I don't think I explained it well enough - note that I'm not any sort of expert on this, just someone who encountered it in University a few years ago.
In the case of someone with one eye, what was in their left field of view would be processed in the right hemisphere, and vice versa. They wouldn't get 3D, as there is only one image being processed for each field of view / in each hemisphere.
Contrast that with someone with two eye - in that case, each hemisphere is receiving two slightly different images for the same side of the field of view. Take the right side of theirn field of view - the left hemisphere (meaning, the part of the visual cortex in the left hemisphere) would then be receiving two images of the right field of view. These images are slightly different because the eyes are separated horizontally. Think of closing one eye then holding up a finger at arms length so that the finger blocks that eye's view of an object at some distance from you - if you then open the other eye, you can see that object with the other eye. So the brain is receiving two different images, one from each eye, both with a slightly different perspective on the scene being viewed. Using those differences, the brain can construct a 3D image for you. In the case of someone with only one eye there is only one image for each side of the field of view, so the brain can't see the differences that are caused by the different locations of two eyes and so cannot construct a 3D image.
Hopefully that makes more sense? As I said I'm no expert, so the above may still have some errors. I think I've explained it about as clearly as I can now; if it's still not clear enough an explanation I can only offer my apoologies and suggest looking for some other resources if you want to look into this further.
@@DerekMacColl thank you. I get it now.
I love this video! Too many people believe in this simplified and mostly wrong myth. When I was tested for Asperger's, the expert (who is a bloody neurologist by the way), asked me whether I was good at language or logic. And when I said "Well, I'm good at language, because it depends on logic.", she wouldn't have any of it... 😒
Slight correction: Rather than each eye corresponding to the opposite side of the occipital lobe, the left field of view of each eye goes to the right half and the right field of view of each eye goes to the left.
Yes, I see this mistake made quite often. Both eyes indeed go to both hemispheres but we process the left and right halves of our vision separately.
Always a wild moment when I'm reminded of this correction
Worked with a civil engineer in the 90's. He was near retirement, left-handed and when writing would turn the page at 90degrees then write downhill right to left. Amazed me because I'm left handed as well. Also drafted plans by hand in the same way.
It had to mentioned, though, that McGilchrist's book says this: the brain is divided for a reason, and the main reason is the use of attention - the left hemisphere has a narrow, detail-focused attention, while the right has a wide, relations-focused attention; the left hemisphere is a tool to work with things, the right hemisphere is in command and makes sense of the world. Culture, he says, has the ability to program us to favour one form or the other of attention - we're either paying more attention to the details in front of our nose and we simplify the world to verbal structures, or we're paying attention to the context, always take into consideration the larger context, admit that not everything can be put into words, have a more transcendental worldview. There are many of his lectures on YT where he explains it all in great and nuanced English.
Dolphins, porpoises and orcas, and likely other marine mammals have basically 2 separate brains that take turns being awake. That is how they solve the breathing issue. Living in water and being a mammal means you have to be awake enough to get a breath every few minutes, and be oriented enough to know where to go to get that air. So, even though, they have large brains, you are only interacting with half a dolphin or orca brain. Though, half an orca brain is still larger than ours.
Imagine being the one brain and waking up thinking 'where am I? What's going on? What has other brain done now?'
Never listen to Doctors conclusions - if I had I should have died 45 years ago. ..
I had a chronic condition for 5 years with 6 different doctors treating with no results. I bought lab equipment, researched, selfdiagnosed and resolved and it in 6 weeks.
(I'll add I was lucky, and consciously remain mindful of falling prey to Dunning - Kruger issues when visiting doctors though)
I'm left handed and when I write, I do not "hook." According to a theory I once came across, probably defunct, hookers have a "normal" right/ left brain lobe function but we non hookers are reversed, with a logical right brain. Whichever is the case, my brain still functions quite well at 74. It's slower at times, but still in working order. I wouldn't want to take the Mensa qualification test again though. That might not work out as well as the first time.
I once had a teacher that was left handed. She could print just fine, but when she wrote in cursive, it was perfect, as if a right handed person with very neat penmanship wrote it, but upside down. It was great for pranking a class full of kids, when they walked in on April 1st to see everything on the blackboard, upside down.
I’m dominant on both. I am an analyst by day and a wonderful artist by night.
I'm wondering if we are just brained 😂
No your spirit controls it 😂 u want go left or right 😂
I don't know if that would apply to everyone 👀
I know some people who are certainly nobrained
Alien hand syndrome reminds me of the movie Evil Dead.
That guy saying that bronze age people would have heard what we now call an internal monologue as auditory hallucinations due to people living in smaller communities is missing one key point.
Recently contacted tribes in the Amazon and elsewhere do not complain about hearing voices, nor do they claim to hear their god speak to them.
My brain decided instead to break entirely instead of in half and forget how to regulate sleep.
... And inflict me with cataplexy for hours/days at a time.
It's always a bit more complex than thought before, who would have thought that
There is nothing right in the left half and nothing left in the right half 😂😂
Simon just loves revisiting old 10 minute videos and expanding them to 30 minutes.
These charlatans would have tough time explaining why so many engineers play an instrument and do sports and read books.
Depending on the type of engineer it could be argued creativity is vital to their ability to do their jobs.
bold of you to begin the video with the sponsor message
man, so much of this stuff makes me wonder how anyone could feel confident that free will exists when your own arm can attack you without you predicting it or being able to stop it
There is no reason that one hemisphere must be dominant in everyone. Also, there is no reason that the left and right brain hemispheric functions cannot be reversed where the left-handed person has the verbal side on the right. It may be an oversimplification, but not a myth, that the functions of the Left and Right are fixed, but not that each hemisphere functions differently, contributing different perspectives to the same task. An architect, for example may design a beautiful building, but must also know the technical aspects constructing it.
19:00. I wonder if the creators of Star Trek knew or considered this when designing the character of Spock ? I bet Leonard Nimoy knew. He was my favorite.
My brain mostly exists to help counter balance my hips when i hula hoop
That was super good! I mean I'm subbed to like 14 of your channels, but this specific video just keeps making me say "OH!" and "Oh?" and "Oh."
I've heard that in some cases people who have suffered severe spinal cord injuries: their body can actually re-wire the connection between big and little brain. Wonderous World ?
Wow Gilles, I can't imagine the amount of research you did for this script! Super interesting!
@29:35 "Left brain dominance has lead to many of our modern problems." The usual trope of fear of technology. Don't be silly. It has led to many of Humanities collective solutions and modern progress. Don't judge, you hippie.
2:48 Just when I thought the creepy old timey music was gone 😨
Check out mirror therapy for stroke patients. It's fascinating.
Also for lateralised chronic pain syndromes 🤔
What makes being a left handed person so interesting is that I never know which 'hand' I am at something. I bowl, bat, throw, kick, catch, cut steak, wash dishes, computer mouse, hold scissors on my RIGHT hand,
But then for my left I chop vegetables, write, paint, draw, shoot left handed always BUT im right eye dominant for aim (yup, it looks crazy), dance left foot first, and anything having to do with finesse or intricate motor control is always left (except for scissors. But I'm a left with an Xacto knife.)
It's always funny learning to do something new, cuz it's a straight toss up which hand it'll be.
I figure it's less about being a lefty with a 'right brained mind' and more about me being raise in a right handed society and having to wing it with whatever works as I go along.
I SUCK at math, have horrible memory retention, but I'm GREAT at arts and creativity, hands down.
Doesn't help that some of the way I am is also wired on an ADHD platform to begin with 😂😂😂
Holy shit I've been trying to remember the term Barnum Effect for years. This made my day
I have severe issues with math. I struggle. When I have to do anything math, it feels like My brain hurts trying to compute it all.
Not sure if anyone else is experiencing this, but there's a LOT of audio compression on the high end. It's creating some high pitched chirps, etc.
I hear it now you mentioned it, but didn't before 😂 . I imagine it's worse on earphones/headphones ? I'm on lowly mobile speaker here 😅
Yeah the audio is horrid.
On the high end it stings for my ears. Whether over speaker or headphone. And the audio feels "sharp" in the bad way.
There are four lights!
You should do a video on mixed dominance. I've never met anyone else that had it. I think it's probably related to some of what you were talking about in this video. Like when I was a kid I had to do some things right handed and other things left handed. Like I could only write right handed, but I could only use scissors left handed. I went to vision therapy for like a year and a half when I was 8-9 and since then I'm left side dominant above the neck and right side below. It took them a long time to catch mine cause I was doing things I shouldn't have been able to do. Like the doctors said I shouldn't have been able to read, but I accidentally taught myself to read when I was 4. My brain is just good at compensating I guess.
Whoa i also taught myself to read, and am ambidextrous in many things. Can only catch with my left and only bat right. I can write with both hands though I’m preferable to the right. I had a brain injury when I was 4, wonder if that has something to do with it.
I'm cross dominant as well, if you can find my comment lost in the pile. I'm a lefty by definition but I do a LOT of things right handed. I use different hands depending on if I'm cutting steak at dinner, or chopping vegetables in the kitchen. I shoot left handed but I'm right eye dominant 100%, I use all fine motor functions with my left, but I throw, toss, catch and kick right handed. But I dance with left foot first. But my right eye has better vision, and my ear is better hearing on the right. But I'm lefty at opening packages, but right handed at using scissors.
It's a complete toss up on which hand I'll use for something new, it's kind of funny to watch people be so confused that I don't know which hand I'll be using for a new sport or whatnot. Lol
@BloodSweatandFears yeah I think it had something with the two hemispheres of the brain not communicating properly. I think it made my vision double. I don't really remember, but when I started having double vision a few years ago, my first thought was that it was a mixed dominance issue coming back to haunt me. As it turns out, I have myasthenia gravis.
My right brain was continuously distracted by the background tinkle music.. not needed!
I dislike whenever there's background music in these videos. It's super distracting. And in some videos, it's louder than Simon and makes it super hard to hear anything he's saying.
now you made me sick of my brain
I took one of those right brain-left brain tests in college with my classmates. I was straight up the middle, lol
ONCE YOUR CROOKED, ITS HARD TO BE PUT BACK THE STRIGHT WAY !
When people ask me this question I can't help but be a Richard and answer "Neither, unlike you I use my whole brain."😅
Speaking of MBTI, I'm an INTJ and the difference between typology and astrology is there's neuroscience based on typology and not for astrology. Where it can be similar is when people without any corresponding credentials confuse cognition with social behavior. Whenever someone starts talking about personality traits and it's nothing but vague social behaviors that anyone can relate to, I tend to just disregard whatever they say. Everyone uses all eight cognitive functions but we all have our preferences. After learning MBTI, you tend to delve into socionics, temperaments, interaction styles, four sides of the mind, etc. There's some things in socionics that I agree with but it as a whole, I don't care for the science. I prefer MBTI over it.
The only similarity I see is that evaluation of accuracy relies on self report. INFJ
"I like oreos and...."😂😂😂😂😂
My son has no corpus callosum at all he is totally left-handed and has enormous trouble using the right at all. He functions as if he has two brains. Hasn't strangled himself yet lol He has epilepsy but has a very sharp mind and his memory is something amazing. They say that messages pass through the rest of the brain. My son is a right-hand brain boy.
I would try to get him an alert dog (can warn of seizures). That's a tough job, and any help you can get. Anyways it's just a thought. Have a nice day.
what i like about the service from the sponsor. instead of others paying a middle man for our information, we now pay the middle man to keep it. it does not change the exchange from money for data itself XD
We are dual core, each hemisphere being an individual core but connected to eachother.
I'm fine. I will never change anything so...
My cousin had that part of the brain that connects the two sides cut. It was in an effort to relieve her epileptic seizures. It worked and her life improved immensely. She matured (she had been stuck as a young teen even in her 20’s) and the seizures stopped. Im SO damn curious about her full experience but we are not that close and she seems shy talking to me.
Are you a brain surgeon ? My brain hurts ! Thanks, Monty.
Nearly every social problem in the world is derived from poor epistemology. They can be traced back to someone believing something without good reason. The real problem is that almost nobody cares enough about truth to perfect their own epistemology. Instead they believe things based on trust, intuition or how an answer makes them feel.
As you explained the background I was like … OMG this explains a lot about me, then I remembered that I have ADHD and spend too much time on random and irrelevant tangents.
This makes alot of sense that each hemisphere can think independently but also somehow connected (even though people have had their hemisphere's completely disconnected through surgery and their personality and abilities remained the same). I seem to see both sides of things so I do believe that we are all on a spectrum between the two hemisphere's...
during sleep both hemispheres become one
I'm cross-lateral, my brains bits speak to each other a bit differently.
I did answer immediately and definitively: I said, "Well, it's complicated."
Lets see how I did.
The hemispheres working in unison also provide us with our conscience AND ego (and them challenging one another), which is a fundamental part of our critical-thinking brains.....and is what makes us more and helps us to aspire to be better too, if we choose to use it and actually WANT to be more than simple beasts or cogs in a machine.
My ambidextrous gift came after having a stroke on my right. Learned to do everything left handed as I worked on right recovery. Come to think of it didn't get any medical care for that either. Did you know we used to not run to the doctors for every little thing. Well, most things. I'm 61 and in pretty good health. Seems you can take a licking and keep on ticking.
Which hemisphere do most zombies eat first?
i see you asking the real question here
I once knew a guy with an ENORMOUS sensory-motor cortex, dorsally and bilaterally. He was a pro-level video gamer
Probably overheats when you unplug him though.....
How does this impact our understanding of conjoined twins 😮❤❤❤
Very few cases of twins sharing part of their brain exist. I am only aware of one and IIRC one died when they were separated.
@@jerrylong381yes, and the other one was disabled for the rest of his life, which didn't even last 40 years
Science hasn’t no idea how the human brain works. Maybe change the approach and pivot the research of how to study the brain in in the first place
I'm left-sided (hand,foot, eye etc, all favor the left) but neither of the standard brain side types seems to apply. I love science and math, and I equally love 'thinking outside the box' and writing in-character fanfiction
Broca's Brain. It's also in a jar in France.
I think I caught that Alian hand syndrome. I'm usually quite non violent but I've been wanting a speed bag lately. Just to keep my hands busy.
Damn! Mutha Nature.
You twisted.
Your verbal eye description is wrong, but your chart is correct. The left half of each eye (Right field of vision) goes to the left brain and the right half of each eye (Left field of vision) goes to the right brain.
Da Vinci will be relieved to know that he’s allowed to be creative and logical.
Wernicke aphasia , not « Vanitki »
I write code for a living and fiction for a hobby. And I'm good at both. Which am I?
Self-consciousness, like a mirror, is the recognition of ourselves, by the reflection, from the mind in our brain's other hemisphere.
@20:10 "Children with an entire hemisphere removed... go on to lead normal lives." Holy cow. God bless them.
But adults cannot do that. Ipso facto lateral brain theory is correct!
I must be a smooth, small brain... Why do they have to use big words?... Why can't they just say "the lumpy bit at the front", or " the tiny bit in the middle that does shitloads"
I believe that I am more "even brained". I'm good at things that both hemispheres do.
I'm not sure how popular it would be, but I would like to request that you guys do a video on cross dominance please. Your in depth analysis would greatly help me understand what I have.
Bad head injuries give us no choice...
I choose both sides.
Oh it's DEFINITELY including your social security number NOW.
I feel middle brained severely lacking the attributes of both sides.😊
10:08. I would call that possession. Hey, see a doctor then go see a priest… I know, Simon, I know; science stuff. I’m only saying if one’s hand is trying to strangle the neck connected to the shoulder of which the hand, after a clinic visit , it might be worth asking oneself if they were rude to any witches, or acquired a cursed item. Things can be cursed, right?
This made me wonder which side of the brain is used in drumming?
It has as much predictive power as astrology... and it seemingly is used as much as astrology to decide wheter to hire you or not. And that doesn't mean "seldomly".
29:16 have the guys even tried to prove their hypothesis by checking the lateralization in the brains of hunter-gatherers? I seriously doubt it.
I wouldn't say I'm left- or right-brained.... I'm harebrained
My mum said that if my sister and i had half a brain between us, we would be dangerous, lol
Word salad. So many politicians now explained.....
You could be describing the problem all of our current AI models have, they need as second hemisphere to error correct and process fuzzy logic
One of the sides is crazy...