note to self: - brain has two cerebral hemispheres - connected by cerebral commissures - certain brain functions are localised largely in one hemisphere - shocking recent realisation - brains can function independently and have almost completely different identities research was done due to separating both hemispheres - done on patients suffering from severe epilepsy - no major function is lost - now since the hemispheres cannot communicate = one hemisphere cannot know what the other one learnt - speech is locaalised in the left brain - both hemispehres may have different responses roles of each hemisphere - nothing is completely lateralised it is only that one hemisphere is preffereend for one function over the other - left - speech reading writing arithmetic - right - spatial reasonling, rotating objects in the mind, discerning direction or distance many or most actions involve multiple cognitive activities - cannot be limited to one hemisphere - some pep[le have specializations reversed - (typically left handed)
If I don't retain anything from this semester, the one thing i will never forget: "He knows a lot about the science stuffffff Professor Dave explains!"
This is so deeply unsettling to me and idk why. I keep imagine if i somehow got my brain split, which half would my stream of counsciousness continue into??? like would i be 2 people each with half my memories, likes and dislikes etc???? GAAAHHHH
th-cam.com/video/BrC-sWYCsn0/w-d-xo.html watch this video if you want a more in-depth explanation. The quick answer to your question though is that nothing would change for you.
his explanation regarding the visual pathway is flipped. Correct explanation: input that hits the right side of the left eye gets processed in the right hemisphere, while the input that hits the left side of the left eye does not cross and instead gets processed in the same hemisphere where its located (left hemisphere). For the right eye, input that hits the left side of the right eye crosses over and gets processed in the left hemisphere, while the input that hits the right side of the right eye does not cross and thus gets processed in the same hemisphere where its located (right hemisphere)
I can't imagine that, like your speaking part doesn't see the object, but you see that object, it is in your brain and you're still unable to say what you see? wild
I just read up on a TINY analysis of six adults that underwent hemispherectomies as children. All of these had one hemisphere completely removed between ages 1 and 11. This was a MRI experiment so I didn't really comprehend the results beyond concluding that they effectively were 'normal.' In some aspects the scans showed typical activity but also showed that the communication between 'regulatory networks' was stronger than normal. Perhaps one could conceptualise this as being compensatory for the removed components. You might be more susceptible to strokes and lesions with less 'redundancy' to fall back on is probably the biggest drawback of living with half a brain. Even really mild epilepsy is a hassle where you aren't allowed to drive. These debilitating severe cases do call for
I have been in 11 inpatient psyche hospital visits in my life for existential psychosis. I say as fact that delusions and psychosis are a function of misalignment between the duality consciousness, and if you don't perceive it this way, it can create extremely dangerous, non-logical truths by passing false logic with an emotionally true signature from one half to the other. Understanding the split brain is the key to creating a model that contains structure that a psychotic can use to pull themself back to reality. Many mental health conditions will benefit through exploration of this aspect of the mind.
So what would happen in a split-brain person if they go blind in their eye? In terms of vision and stuff… would they be essentially “consciously blind”?
I'd imagine that a person who is right-eye blind and has a split brain would struggle immensely with describing the world around them, but would not act like a blind person - a person who is left-eye blind would have the opposite, able to describe but unable to accurately judge distance, spatial positioning and overall would have poor mobility.
it’s all fun and games until right brain starts attacking your setup while you’re on call and you can only watch and describe as you destroy your own things with no way to stop yourself
3:30 the brain image should be reversed. The frontal and prefrontal cortex elements should be toward the front, making the ‘red’ side Right, ‘blue’ side Left.
I wonder if this concept has been tested with ai systems, i.e. having two ai systems running in parallel that have separate specializations which generate a singular output. I’ve also wondered if they have worked with a type of subconscious or what may be a self initializing algorithm which would keep it active rather than waiting on a command request.
It's just domino effect magnetized switches. We need to use wetware, quantum computers, and analog software to truly get anywhere. Ai will emulate sentience before they actually are. Computers basically work from a domino effect, no matter how complex the dominos. They wont get conscious.
I don't think "AI" works the way you think it does. "AI" is not the brain, it's the instruction. The hardware in a computer handles all the multi-threading and manages instructions coming from the software. Say you run Stable Diffusion to "AI" generate an image, the workload/instructions would already be split in the GPU and CPU, and then put together to one single output. A more realistic comparison between split brain and computers would be running multiple graphics cards in a computer. You can set one of the cards to handle all the physics in a game for example, while the other graphics card alongside the CPU handles rendering the textures and running the game. The card handling all the physics is offloading the card rendering the game and vice versa, so you'd end up with a game running way smoother than if you were just running 1 GPU. There is also something called SLI / Crossfire (Depending on if it's an AMD or Nvidia card) where you can bridge multiple graphics cards together in a computer and they split the workload quite evenly between them. SLI/Crossfire is however quite outdated by now as no games were optimized for it so it would run like ass.
Hi Professor Dave, do you have any cited research for the statements around 3:24, that each separate hemisphere seems to have its own sense of self, displaying different beliefs and personalities?
It may explain that when I’m deeply in flow while coding, when I get interrupted, I feel antsy. Flow state might be utilising both sides with the deeply complex task where “the other personality” which doesn’t normally get to communicate is “happy”. When breaking flow might be the “other personality “ sharing it’s non-verbal response that it’s unhappy. Hence feeling antsy. Interesting…
The image at 4:15 is incorrect. You are showing a dorsal view of the brain with the posterior at the top. So your left and right brain hemispheres are reversed.
After watching this I fell like my left hemisphere is broken. Everything the left is suppose to do seems off or just not working for with me. Even typing this is a bit difficult at times and seems degraded at times. Meanwhile everything the right does is my strongest points. I am right handed. I will never get lost and 3d is my specialism, I don't really remember must but have lots of general knowledge and skills although I don't remember learning most. Either way this video was very interesting and I learnt a lot about the brain
"... differences in size between areas of cortex in either hemisphere." And what about if one (lets say right) hemisphere is considerably underdeveloped (most likely since a baby)? What would be the main functional deficits? And also are there some typical manifestations of a more dominant left-hemisphere?
Did anyone else notice that they had their brain rewired in a unique way that was unexpected even to doctors? That’s what happened I was awake in my experience at two different surgery in London Ontario Canada they said I had four working hemispheres instead of two hemisphere
Dave you say “some people have specialization reversed” and that those are often left handed, but this sort of gives the impression that left handed are often this way... is that true or just a flaw of intuitive reasoning (since all fire trucks are red, all red trucks are fire trucks sort of thing)
buddy, i wanna know what about the mixed handed people? i was born mixed handed, and i wanna know alot more about my brain. here's one ex: like, when i meet someone, and some other person asks me to describe them, i can tell them, how many moles they had on their face or neck, or their eye colour, or any acne scar or so, that i dont even think i remember noticing, until someone asks me :(
Guys, try drawing straight lights or a star i the air with each hand but both eyes open of course, so right brain can judge. Left me (who wrote this mentally) really sucks at making it a straight line or shape but Right me is pretty good. kinda jealous of him but at least he helped me type this, we are good friends.
If left hemisphere is better at recognising spoken language and right hemisphere is mainly responsible for speech, does that mean a polyglot split-brain patient will retain their ability to write in a foreign language, but won't be able to speak / speak poorly a foreign language?
Thank you for the informative video. I have a question then: Why did the patient in the split-brain experiment say he can see nothing when an object is shown on the left visual hemifield instead of saying that he can see an object but don't know what it is? The reason I ask this is because I assume that he can still see an object from the left visual hemifield and process it through the right hemisphere so that he should be able to function and react to the visual perception, it is just that he could not recall the object's name since he cannot communicate to the left hemisphere for the speech. It would be nice if anyone can answer my query, thank you!😉
Because the sides are split so, if I understand it correctly, they don't share as much of the vision anymore. The right brain usually goes along with whatever the left brain does so this is why they still move mostly the same but my grandpa can't read well because his eyes move at different rates which I suspect would be similar in cases such as this.
Well, because the information traveled to the right hemisphere and speech is located in the left. The right hemisphere can’t share it, with the left. The strange part is that the right side will communicate by picking up the object it saw, and when the scientist ask why did you pick up “x” object. The patient will come up with some excuse why they choose that object. For example if the picked up a soccer ball, that was shown to the right hemisphere. They might say “oh, well I was just thinking back to when I was a kid, I used to play soccer.” They got the object right, but the left hemisphere doesn’t know why it choose that object so it creates a reason that seems logical.
How do they ask different questions to each side of the brain? Is it as simple as directing the question to one ear or the other, since only one half of the brain will "hear" it?
I think they just asked a question and both sides responded. On side verbally and on side with one of the hands. I don't think the separate halves understand that they both exist in the same body and respond as if they are the only one. That's what makes this so damn interesting !! This is happening in our head with every decision we make but since our halves are connected the two sides are jockeying for control which kind of explains why some people are so indecisive.
@@lemondestruction4606 But if I understand correctly, only one hemisphere of the brain is capable of reading text. Would the question have to be presented in some other way for the other hemisphere to understand?
@@geochonker9052no, this is because the right brain can’t communicate with the left brain, so even if the right brain and left brain are working but split the right brain can’t communicate the information
So explain how u don't automatically lose half ur brain power by not being able to communicate one brains answer to the other. Like if u gave right brain a math problem, wouldn't they have a much much harder time, this seems to be pretty significant
Truth is, yeah. I would think if you prevented the left brain from knowing that a math problem exists right in front of it, the right brain would have a hard time doing it. BUT, you don't 'lose' brain power. Seems more fair to say that brain power is divided instead. Give the math problem to the left brain, and it would solve the problem, without any change in efficiency. At least I *think* that's how it works.
I have a question: joe patient with corpus callosum removal verbalised a joke something like "i have a back up brain" but since humor is in the right hemisphere, how did he verbalised humor; or the aspects of humor in the right hemisphere are more metaphorical and abstract than that joke?
I would call the hemisphere Jeremy and Jimmy, since Jeremy is more about logic and reason, while Jimmy is more what the Aforementioned skills are and they can't be sever of course or not the entire subject is not included of the skills of each other.
Recognition is part of the function of the right brain... It may make sense if you see written language or written letters and words as symbols aiding in comprehending messages rather than language itself.
After all that, Professor Dave, perhaps it would be best to never mention left/right personalities again. To ardently insist that it is a myth, seems like petty semantics. I don't think there ever was a formal assertion, so to take an absolute stand against a fuzzy pop concept comes off as saying the general idea is completely off base. According to this video, I can walk away happily knowing that it is perfectly reasonable to hypothesize that specific observed behavioral characteristics in personality may be attributed to the individual's variant interhemispheric connectome and to their preferences for certain learning modalities causing the entrainment of their overall personality to be more strongly based in certain left or right structures, which I already suspected. You seem to present yourself as an institution of knowledge with sufficient integrity to be taken at face value, as any diligent and faithful researcher should, but I fail to recognize how it helps cultivate, deepen or sharpen your students' insight into the core concepts to distract them with specific examples of what the facts don't mean.
Yoo! I can switch sides of my brain, and my vision changes, the way I talk, think. On one side, I am more on instincts as I call it, and the other one is reason.
Hi Professor Dave, wary interesting! May I please ask you about, I know a person who have vision on both eyes but do only experience the world trough her right eye, the left do collect light and she can see with it, if she chooses to, by closing the right eye. or concentrating real hard. How can that be that her brain always have chosen to only use the right eye? (She have learned how to judge distances but have no dept perception).
@@Himbeermaus1 May I please ask you if you can't see any difference between what you see on TV and the real world? Of cause do I know that you know if your are looking at the tv or not, but I mean the "3D" in the real world is no different then on a flat screen tv or in the cinema?
Are split brain patients allowed to drive? If a car was seen coming from a certain direction, woule you be able to make the body adjustments necessary to avoid a collision?
It probably means everyone has at least 2 consciousnesses inhabiting our body. It's just that in a normal person, these two (or more) consciousnesses can communicate with each other and coordinate to appear as one.
i think i may have this condition for 2 reasons: 1) i am right handed i cant write with my left hand but you can show me a shape and draw 2 different shapes on a paper with both of my hands at the same time. 2) i fail to recognise some images- but if i close one of my eyes i see a specific image.
you do it all the time. anytime you do some symbolic analogus type of thinking that doesn't make verbal sense but "vibes" right. that's the right brain.
Until the 5 mnute mark I thought this was going to go with the usual bullshit of pretending that left-handed people don't exist, and that the left hemispere is always dominant. I had a stroke which wiped out a huge amount of my left hemisphere - was expected to come out of the coma with total aphasia, because I'm left handed my speech comprehension and production are both absolutely fine, apart from right side weakness and numbness and some problems with auditory processing I've had almost no lasting effects. It's bad enough living in a world that only caters to the right-handed without the world of medicine having the same stupid bias
![Lobes of the Brain: Cerebrum Anatomy and Function [Cerebral Cortex]](/img/n.gif)
Teacher: What’s your name?
Student: *We are Timmy.*
That would be soo creepy.
*Begins levitating
We are farmers dun dun dun dun dun dun dun dun
"You are Timmy..We all are Timmy"
Timmy 1 doing the test, Timmy 2 correcting the answers.
note to self:
- brain has two cerebral hemispheres - connected by cerebral commissures
- certain brain functions are localised largely in one hemisphere
- shocking recent realisation - brains can function independently and have almost completely different identities
research was done due to separating both hemispheres
- done on patients suffering from severe epilepsy
- no major function is lost
- now since the hemispheres cannot communicate = one hemisphere cannot know what the other one learnt
- speech is locaalised in the left brain - both hemispehres may have different responses
roles of each hemisphere
- nothing is completely lateralised it is only that one hemisphere is preffereend for one function over the other
- left - speech reading writing arithmetic
- right - spatial reasonling, rotating objects in the mind, discerning direction or distance
many or most actions involve multiple cognitive activities - cannot be limited to one hemisphere
- some pep[le have specializations reversed - (typically left handed)
If I don't retain anything from this semester, the one thing i will never forget: "He knows a lot about the science stuffffff Professor Dave explains!"
😂😂😂😂😂😂
This is so deeply unsettling to me and idk why. I keep imagine if i somehow got my brain split, which half would my stream of counsciousness continue into??? like would i be 2 people each with half my memories, likes and dislikes etc???? GAAAHHHH
you would not notice any difference - only when something is very much to the left or right of your field of view, but mostly nothing changes.
th-cam.com/video/BrC-sWYCsn0/w-d-xo.html watch this video if you want a more in-depth explanation. The quick answer to your question though is that nothing would change for you.
I love the idea of someone splitting your brain in half and your biggest concern being "will I still enjoy my hobbies??"
Which stream of consciousness will you become? Both. You’re mind exists on both hemispheres and both sides will have parts of your mind after split.
split brain is actually a kind of surgery for curing seizure.
his explanation regarding the visual pathway is flipped. Correct explanation: input that hits the right side of the left eye gets processed in the right hemisphere, while the input that hits the left side of the left eye does not cross and instead gets processed in the same hemisphere where its located (left hemisphere). For the right eye, input that hits the left side of the right eye crosses over and gets processed in the left hemisphere, while the input that hits the right side of the right eye does not cross and thus gets processed in the same hemisphere where its located (right hemisphere)
It's cool that our brains do teamwork. Makes me want to high five the other half of my brain and say thanks for the info sis.
Clap
Which half? Your are both halves.
The one that doesnt talk@@gyrum310
@@gyrum310 the side that doesnt talk
Clap. Makes kids happy
The best thing is these guys can play rock, paper, scissors with themselves.
Brain： Why are you watching this video ? What are you planing to do ?
I can't imagine that, like your speaking part doesn't see the object, but you see that object, it is in your brain and you're still unable to say what you see?
wild
"You" do not exist... 🙂
@@saipranav9817 "you" does exist, because i said so
@@nbshftr
Sure.
@@saipranav9817
Cogito Ergo Sum
I think, therefore I am
@@raptordarwish887
Or so "you" think...
I just read up on a TINY analysis of six adults that underwent hemispherectomies as children. All of these had one hemisphere completely removed between ages 1 and 11. This was a MRI experiment so I didn't really comprehend the results beyond concluding that they effectively were 'normal.'
In some aspects the scans showed typical activity but also showed that the communication between 'regulatory networks' was stronger than normal.
Perhaps one could conceptualise this as being compensatory for the removed components.
You might be more susceptible to strokes and lesions with less 'redundancy' to fall back on is probably the biggest drawback of living with half a brain.
Even really mild epilepsy is a hassle where you aren't allowed to drive. These debilitating severe cases do call for
I have been in 11 inpatient psyche hospital visits in my life for existential psychosis. I say as fact that delusions and psychosis are a function of misalignment between the duality consciousness, and if you don't perceive it this way, it can create extremely dangerous, non-logical truths by passing false logic with an emotionally true signature from one half to the other. Understanding the split brain is the key to creating a model that contains structure that a psychotic can use to pull themself back to reality. Many mental health conditions will benefit through exploration of this aspect of the mind.
Exactly. I try to explain this to my sister. It gives me hope that she’ll one day accept this truth as you have. Thank you for sharing 🫶
So what would happen in a split-brain person if they go blind in their eye? In terms of vision and stuff… would they be essentially “consciously blind”?
I'd imagine that a person who is right-eye blind and has a split brain would struggle immensely with describing the world around them, but would not act like a blind person - a person who is left-eye blind would have the opposite, able to describe but unable to accurately judge distance, spatial positioning and overall would have poor mobility.
So when you clap, it's actually a right brain-left brain high five
it’s all fun and games until right brain starts attacking your setup while you’re on call and you can only watch and describe as you destroy your own things with no way to stop yourself
This might have been the most interesting one we've seen so far. We were particularly interested in the split brain 'experiments'.
3:30 the brain image should be reversed. The frontal and prefrontal cortex elements should be toward the front, making the ‘red’ side Right, ‘blue’ side Left.
This is gonna help me a lot with a certain part of a story I'm writing. Thanks a lot, Professor Dave!
Tell me the story bro
Tell us the story bro
Tell us
what's the story
We need the story ASAP no rocky
My next lecture is about this topic. Thanks for explanation.
I wonder if this concept has been tested with ai systems, i.e. having two ai systems running in parallel that have separate specializations which generate a singular output. I’ve also wondered if they have worked with a type of subconscious or what may be a self initializing algorithm which would keep it active rather than waiting on a command request.
That’s a really good idea!
Yes, these tests were done by observing a man who doesn't have the corpus callosum, that is it's like there are 2 people in his brain.
Wintermute + Neuromancer :P
It's just domino effect magnetized switches. We need to use wetware, quantum computers, and analog software to truly get anywhere. Ai will emulate sentience before they actually are. Computers basically work from a domino effect, no matter how complex the dominos. They wont get conscious.
I don't think "AI" works the way you think it does.
"AI" is not the brain, it's the instruction. The hardware in a computer handles all the multi-threading and manages instructions coming from the software.
Say you run Stable Diffusion to "AI" generate an image, the workload/instructions would already be split in the GPU and CPU, and then put together to one single output.
A more realistic comparison between split brain and computers would be running multiple graphics cards in a computer.
You can set one of the cards to handle all the physics in a game for example, while the other graphics card alongside the CPU handles rendering the textures and running the game.
The card handling all the physics is offloading the card rendering the game and vice versa, so you'd end up with a game running way smoother than if you were just running 1 GPU.
There is also something called SLI / Crossfire (Depending on if it's an AMD or Nvidia card) where you can bridge multiple graphics cards together in a computer and they split the workload quite evenly between them.
SLI/Crossfire is however quite outdated by now as no games were optimized for it so it would run like ass.
Hi Professor Dave, do you have any cited research for the statements around 3:24, that each separate hemisphere seems to have its own sense of self, displaying different beliefs and personalities?
This makes me appreciate even more my brain because it would be hard to have split brains and just be 2 persons thinking differently
I don’t have this surgery and I think I have this issue. What does it mean?
I don’t have this surgery and I think I have this issue. What does it mean?
It may explain that when I’m deeply in flow while coding, when I get interrupted, I feel antsy. Flow state might be utilising both sides with the deeply complex task where “the other personality” which doesn’t normally get to communicate is “happy”. When breaking flow might be the “other personality “ sharing it’s non-verbal response that it’s unhappy. Hence feeling antsy. Interesting…
The image at 4:15 is incorrect. You are showing a dorsal view of the brain with the posterior at the top. So your left and right brain hemispheres are reversed.
I'd be really really intrigued to see if this correlates at all with people who have DID, especially given the theory of two streams of consciousness.
After watching this I fell like my left hemisphere is broken. Everything the left is suppose to do seems off or just not working for with me. Even typing this is a bit difficult at times and seems degraded at times. Meanwhile everything the right does is my strongest points. I am right handed. I will never get lost and 3d is my specialism, I don't really remember must but have lots of general knowledge and skills although I don't remember learning most. Either way this video was very interesting and I learnt a lot about the brain
2:30 in the experiments, the images are shown to both eyes. It's the visual field that is divided between the hemispheres, not the eyes.
"Do you believe in God?" - lol L: Yes! R: No.
Right Brain belives in Religious like god
Left Brain believes in atheist like logic
Lol Mochi Idiot
Princess Naomi
What
@@princessnaomi4594 it’s the opposite lol
Thanks
This was a super weird thing to see in my feed just as I got to the part of Scanner Darkly that explain this.
Who’s here because of cgp grey?
Yeah
You're never alone
I wonder if reconnected if the speaking hemisphere is able to articulate right brain memorys
there is no way of reconnecting the brains
Not with that attitude
@@TillerTH eventually we’ll get there
"... differences in size between areas of cortex in either hemisphere."
And what about if one (lets say right) hemisphere is considerably underdeveloped (most likely since a baby)?
What would be the main functional deficits? And also are there some typical manifestations of a more dominant left-hemisphere?
Did anyone else notice that they had their brain rewired in a unique way that was unexpected even to doctors? That’s what happened I was awake in my experience at two different surgery in London Ontario Canada they said I had four working hemispheres instead of two hemisphere
Dave you say “some people have specialization reversed” and that those are often left handed, but this sort of gives the impression that left handed are often this way... is that true or just a flaw of intuitive reasoning (since all fire trucks are red, all red trucks are fire trucks sort of thing)
buddy, i wanna know what about the mixed handed people? i was born mixed handed, and i wanna know alot more about my brain. here's one ex: like, when i meet someone, and some other person asks me to describe them, i can tell them, how many moles they had on their face or neck, or their eye colour, or any acne scar or so, that i dont even think i remember noticing, until someone asks me :(
40% of LH people have reversed specialisation. Also more likely to be male as they have larger corpus callosum connections going to RH.
I love you, Professor!!! 😍
We all do
Your videos are the best! Can't thank you enough
Guys, try drawing straight lights or a star i the air with each hand but both eyes open of course, so right brain can judge. Left me (who wrote this mentally) really sucks at making it a straight line or shape but Right me is pretty good. kinda jealous of him but at least he helped me type this, we are good friends.
U R my hero .......i would like to have private tuition classes frm u
If left hemisphere is better at recognising spoken language and right hemisphere is mainly responsible for speech, does that mean a polyglot split-brain patient will retain their ability to write in a foreign language, but won't be able to speak / speak poorly a foreign language?
Thank you for the informative video. I have a question then: Why did the patient in the split-brain experiment say he can see nothing when an object is shown on the left visual hemifield instead of saying that he can see an object but don't know what it is? The reason I ask this is because I assume that he can still see an object from the left visual hemifield and process it through the right hemisphere so that he should be able to function and react to the visual perception, it is just that he could not recall the object's name since he cannot communicate to the left hemisphere for the speech. It would be nice if anyone can answer my query, thank you!😉
Because the sides are split so, if I understand it correctly, they don't share as much of the vision anymore. The right brain usually goes along with whatever the left brain does so this is why they still move mostly the same but my grandpa can't read well because his eyes move at different rates which I suspect would be similar in cases such as this.
Well, because the information traveled to the right hemisphere and speech is located in the left. The right hemisphere can’t share it, with the left.
The strange part is that the right side will communicate by picking up the object it saw, and when the scientist ask why did you pick up “x” object. The patient will come up with some excuse why they choose that object.
For example if the picked up a soccer ball, that was shown to the right hemisphere. They might say “oh, well I was just thinking back to when I was a kid, I used to play soccer.”
They got the object right, but the left hemisphere doesn’t know why it choose that object so it creates a reason that seems logical.
the best intro to ever exist
How do they ask different questions to each side of the brain? Is it as simple as directing the question to one ear or the other, since only one half of the brain will "hear" it?
I think they just asked a question and both sides responded. On side verbally and on side with one of the hands. I don't think the separate halves understand that they both exist in the same body and respond as if they are the only one. That's what makes this so damn interesting !! This is happening in our head with every decision we make but since our halves are connected the two sides are jockeying for control which kind of explains why some people are so indecisive.
Each hemisphere has vision the other can’t see so they asked the question there
@@lemondestruction4606 But if I understand correctly, only one hemisphere of the brain is capable of reading text. Would the question have to be presented in some other way for the other hemisphere to understand?
Top Ten Everything the one that’s speaking with language knows
@@tom_something Left is better at reading, but right, when split can still understand simple commands like "what is this" and draw the object.
Can someone with a split brain communicate in paper and vocally with their right brain???
That's what I was thinking. Let their right brain write what it's thinking
@@geochonker9052no, this is because the right brain can’t communicate with the left brain, so even if the right brain and left brain are working but split the right brain can’t communicate the information
thank you for making it clear.
So explain how u don't automatically lose half ur brain power by not being able to communicate one brains answer to the other. Like if u gave right brain a math problem, wouldn't they have a much much harder time, this seems to be pretty significant
Truth is, yeah. I would think if you prevented the left brain from knowing that a math problem exists right in front of it, the right brain would have a hard time doing it. BUT, you don't 'lose' brain power. Seems more fair to say that brain power is divided instead. Give the math problem to the left brain, and it would solve the problem, without any change in efficiency.
At least I *think* that's how it works.
This was great!
Hey I know you, from my science class.
Dave:these people are typically left-handed
Me left handed: hmm
I have a question: joe patient with corpus callosum removal verbalised a joke something like "i have a back up brain" but since humor is in the right hemisphere, how did he verbalised humor; or the aspects of humor in the right hemisphere are more metaphorical and abstract than that joke?
How do you know that he was joking? :P
No function is completely lateralised
I would call the hemisphere Jeremy and Jimmy, since Jeremy is more about logic and reason, while Jimmy is more what the Aforementioned skills are and they can't be sever of course or not the entire subject is not included of the skills of each other.
do all left-handed people have their right hemisphere as their dominant?
Thank you, that was really helpful
I used this info to wisen myself- oops I mean myselves up... 😂😂
3:04 if the language is localized in left brain, how did he know ⚽ is written as "ball"? can someone explain? im confused.
Recognition is part of the function of the right brain... It may make sense if you see written language or written letters and words as symbols aiding in comprehending messages rather than language itself.
Great hair cut!!!!
claims that the personality theory is a myth, then proceeds to explain why it is true just 4 minutes into the video. lol
This is very interesting.
you could multitask with split brain but you couldnt help the other side
After all that, Professor Dave, perhaps it would be best to never mention left/right personalities again. To ardently insist that it is a myth, seems like petty semantics. I don't think there ever was a formal assertion, so to take an absolute stand against a fuzzy pop concept comes off as saying the general idea is completely off base. According to this video, I can walk away happily knowing that it is perfectly reasonable to hypothesize that specific observed behavioral characteristics in personality may be attributed to the individual's variant interhemispheric connectome and to their preferences for certain learning modalities causing the entrainment of their overall personality to be more strongly based in certain left or right structures, which I already suspected. You seem to present yourself as an institution of knowledge with sufficient integrity to be taken at face value, as any diligent and faithful researcher should, but I fail to recognize how it helps cultivate, deepen or sharpen your students' insight into the core concepts to distract them with specific examples of what the facts don't mean.
Yoo! I can switch sides of my brain, and my vision changes, the way I talk, think. On one side, I am more on instincts as I call it, and the other one is reason.
How do you switch?
@@myamia1772 I exercised the left side of brain through using an image in my head while doing exercises, ex: 1000 kicks.
@@Dsmbr03 Interesting. Thanks.
Hi Professor Dave, wary interesting! May I please ask you about, I know a person who have vision on both eyes but do only experience the world trough her right eye, the left do collect light and she can see with it, if she chooses to, by closing the right eye. or concentrating real hard.
How can that be that her brain always have chosen to only use the right eye? (She have learned how to judge distances but have no dept perception).
Fried Mule hi i do have this condition too! want to know that too
@@Himbeermaus1 May I please ask you if you can't see any difference between what you see on TV and the real world? Of cause do I know that you know if your are looking at the tv or not, but I mean the "3D" in the real world is no different then on a flat screen tv or in the cinema?
Fried Mule yup i am not able to see 3d! it is just like you explained with the tv.
Who else is here because they had a split brain surgery? lol
Right hand - gives left smth
Left hand - what the
You can still make brains communicate! Just right brain has to use his hand to write something for left brain to read!
So our mind is basically like "yes but actually no"
Thank you!!!
We are Groot indeed :)
Are split brain patients allowed to drive? If a car was seen coming from a certain direction, woule you be able to make the body adjustments necessary to avoid a collision?
Or the other part could save your life. Or if it gets mad
It can kill you
Isn't brain an super complex way of arrangement of atoms which then can think and control
And the center lower part is the monke brain
nah right brain, this is MY body
thanks
I see candy looking brains
Good
Does anyone know of an experiment where the patient's brain hemispheres were able to communicate a secret or a newly learned skill?
maybe that's why EMDR seems to do... something
Is it possible to learn how to completely turn off the left brain during creative tasks?
the brain doesn't work like that...
No.
What NO!!!!! WHY DID YOU CUT YOUR HAIR SIR!!!
Isn't that this theory already been debunked? That there's no such things as left and right brain.. Idk I must've read it somewhere...
The "left brained/right brained" personality type thing is a myth. That doesn't mean there is no brain lateralization.
Does this mean that split brain patients have effectively become two people inhabiting the same body?
It probably means everyone has at least 2 consciousnesses inhabiting our body. It's just that in a normal person, these two (or more) consciousnesses can communicate with each other and coordinate to appear as one.
I am pretty good with language and left handed, I wonder if my language part is in the right side...
You’re here
i think i may have this condition for 2 reasons: 1) i am right handed i cant write with my left hand but you can show me a shape and draw 2 different shapes on a paper with both of my hands at the same time. 2) i fail to recognise some images- but if i close one of my eyes i see a specific image.
It’s not a condition it was a surgery lol
I came here from CGP Grey
i want to speak to right brain
you do it all the time. anytime you do some symbolic analogus type of thinking that doesn't make verbal sense but "vibes" right. that's the right brain.
all I can think of is left brain right brain by bo Burnham
Speech is stored in the balls
We are venom.
Ok
so like you know thinks but cant say certain things? wat?
Could Right Hemisphere speak sign language?
So we're not our minds?
this has some pacific rim vibes! its almost like our bodies are to large to be handled by only one brain!
Im left handed does left side of brain works more for me
I was really hoping for less surface level research.
Anyone have anything better?
Define "operates normaly". Just got thiscthought. "If Adam & Eve seen as left brain or right brain ??" Hmmm..
My thoughts as well. Now I have to figure out what the serpent represents.
Until the 5 mnute mark I thought this was going to go with the usual bullshit of pretending that left-handed people don't exist, and that the left hemispere is always dominant. I had a stroke which wiped out a huge amount of my left hemisphere - was expected to come out of the coma with total aphasia, because I'm left handed my speech comprehension and production are both absolutely fine, apart from right side weakness and numbness and some problems with auditory processing I've had almost no lasting effects. It's bad enough living in a world that only caters to the right-handed without the world of medicine having the same stupid bias
I like it
Sir left chemicals lyi madicine dso
God damnit now I WANT to know my other self! I want to know what I like! What I'd say!
I kinda want this to happen to me to test it but no