Most people are Dual Core however this guy lost his internal processor BUS and has to rely on the chipset to unify his being. He became an MCM (Multi-Chip Module). It is still unknown what would happen if the two halfs were completely separated and put in different bodies.
When something is flashed on the left side of the screen, it is interpreted in the right side of the brain. He is then told to draw with his left hand because it is also controlled by the right side of the brain. He is not able to simply say the word because language is controlled by the left hemisphere and no there is no way for any information to cross between the two hemispheres without the corpus callosum. Hope this helps :)
The left brain could say what it is thinking out loud and the right brain will understand it. It is not perfect communication but it isn't impossible to communicate. But only the left can do that by means of talking.
For those wondering about the accuracy of the experiment done, I just learned about the eye and found it very interesting how it works! So this experiment works great because at the place called the optic chiasm, the fibers from the nasal half (closer to the nose) of EACH retina cross paths. These fibers are carrying vision from the TEMPORAL field of view.(peripherals, or further from the side of the head) (btw, for the right eye, the right field of view is projected to the left half of the retina and vice versa, same for left eye, left field of view projected to the right side). Now the temporal fibres of the retina (carrying nasal field of view from each eye) do not cross in the optic chiasm. Therefore the LEFT side of the brain receives only fibers from the RIGHT field of view from BOTH eyes. The RIGHT side of the brain only receives fibers from the LEFT field of view from BOTH eyes. Therefore, as he or anyone else stares at the cross. You can easily see both images with both eyes (it's not just left eye/right eye as some people in the comments seem to be confused about) it's the same side field of view from both eyes (The left and right eye both see the left image with their left fields of view) therefore only transferring that image to the right side of the brain) Hope this clears up some confusion for you! It sure helped me and I found it fascinating.
Wow. I read your comment again and again until it actually made sense. Wow is all I'm left with. Always thought it's the right eye to the left hemisphere and vice versa. This is so interesting!
I figured I was an idiot, but wasn't quite sure. Your reply simply affirms that for me, and so much more makes sense in life now. I wish I had known this earlier. Thank you !
This is a fantastic video... just amazing.... Still, it is sad that he had to go through this surgery. I wonder if some day these seizures might be treated without the need for such a drastic surgery.
My professor (Cognitive Psychology) showed this video on September 25, 2011, but not the intro, so I am happy I found this so I can go over whatever I missed!
In addition to facial recognition in the RH, his RH is seeing the pictures of faces as a whole, a novel gestalt, whereas his left is able to break down the overlearned components of it (e.g., books, fruit)...gotta love it
It's funny how he tries to explain to the experimenter (and to himself) why he picked the bell at @5:55. I think it supports the theory that we are only conscious observers of our lives and instead of being the decision makers we are actually trying to figure out why we've done something rather than controlling the body's actions.
The experimenter, Professor Gazzaniga actually wrote an interesting work on this, pertaining to free will and our decision making ability within the brain. Sounds like you have already thought of it! Maybe check it out for more information
If that were so, then why would he try to explain why he picked the bell? Aren't you implying that his consciousness / observer part of himself is the part trying to rationalize his choice? If that part of himself were not in some control of his actions, why would he make the choice to explain his decision in such a way? To me it seems more like we are sometimes in conscious control of our body but not always, and it can either receive "orders" delivered consciously or run in autopilot mode. It's a pretty interesting thing to consider either way though.
Evan π To be honest I cannot be too sure either. You are right to say that, while I was implying limited control, I do believe the consciousness has some sort of influence on the body, but to a much more minimal extent than we believe. I should have been more careful in my saying, I was probably overly enthusiastic about the video and it's implications. Why he attempted to explain his action of picking the bell could be a function of the conscious brain attempting to understand it's mind's behaviour and thus learn to control it better in future. This is "introspection" but is not limited to the mind. Whether his observer part is rationalising his choices or it is making the "choice" is difficult to put a line on at this point. The observer may be merely feeding the long term information back to the brain and the brain becomes the one to make those decisions. At this point, these are very subjective views, I cannot fully trust my observation of myself nor is there data on this. I will still try to explain how I got to this conclusion though. Our minds, most human minds instinctively assume that any "choices" or decisions made are done at the conscious level without even realising it. On the one hand that could be a correct assumption. On the other hand if we were to say that such an assumption is wrong, as we cannot prove it, we reach another interesting possibility. To do that you must be able to separate the event of decision making from conscious thought you may even consider whether the decision came before or after the conscious thought. I hope you will be able to make that separation as it will be much easier to see this point of view whether it is right or wrong. The consciousness should have some purpose even if it is not to make decisions, it can still serve a function by being able to relate cause and effect over a long period, in order to do this however, it must be able to bind all of our senses into one experience. In this sense, you can think of the consciousness as a long term event unscrambler, where it can sort out which action caused what event over weeks, months or even years and store that in our memory. Without it the past and future would look like on big random event that we have no control over. Things like, if I don't remember to check the fridge for milk then I may not have milk readily to drink or if I don't treat this person well, they won't help me in the future. Long term planning is an ability we associate with relatively high intelligence and recently success. It has been a long time since I've read the article and I cannot find it for the life of me but in it scientists report that when they disabled all sensory input to the brain, they found that the consciousness shut down as opposed to having a consciousness free from sensory input. Anyway it has been very constructive for me to attempt to answer your questions as I have realised my own carelessness. So thanks for that.
Thanks for this. The my prof what this video but lost it, but fortunately someone is the class found this video and sent it to the class. Thanks again :)
Fortunately it's just the right visual field that's impaired - so it's about what direction the eye is looking rather than which eye is used. Hope that helps
@AlephNeil There is an interesting concept that occurs when the right hemisphere becomes more active than the left, it's called the sensed presence. The left hemisphere (or the dominant one) is the linguistic one, it explains the sense of self, while the right hemi. works sort of in the shadow of the left. The two are in phase with each other, but sometiems they might go out of phase. Since there can only be one self within a person, the right hemi. is experienced as an external presence.
TY ; ) Interesting. I also like the Art of Arcimboldo. Also wanted to mention the left brain hemisphere controls movement on right side of physical body and vice versus. Right brain hemi = Creative while left brain hemi = logical, verbal and analytical skills.
Hoooooly cramoly! That's incredible! My brain is getting these weird twinges as I see these observations and live tests! It feels so freaky. I'm completely incredulous.
@eswyatt @zacmienieorg [cont.] I bet you will notice a clear difference in their accents, meaning that when they talk they have a thick accent but when they sing you most likely won't be able to detect their accent at all. This is, once again, due to the fact that during singing the right hemisphere is more active than the left. In people with a cut corpus callosum there still exist some communication b/w the hemispheres, by way of anterior and posterior commissures for example.
If you're asking if the brain is lateralized, we talked about this in my psych class- it could be that one very important function became lateralized then many others followed (most likely language to the L hemisphere), or that there is a processing advantage to having two brains doing two different types of processing on the same task simultaneously (R spatial and L verbal). It could also help keep the different functions from interfering with each other (insulate them). Hope that helps!
I think the most remarkable effect here is the way he confabulates an explanation for why he picked 'bell'. Naively, you'd think he would say "actually, I don't know why my left hand pointed to the bell - I wanted to point at the trumpets." I mean, it's just an experiment so he has no incentive to try to 'disingenuously' pretend to be 'normal'. Shows that what's going on isn't as simple as having "two minds in the same brain".
@eswyatt @zacmienieorg Well language is primarily localized in the left hemisphere (or the dominant hemisphere, small % of the population has it in the right hemi.), but the right hemisphere is still able to understand simple words. Another interesting property of the right hemisphere is that it's able to understand more complex sentences if they are sang to the person. Notice this, listen to a foreign singer when they are singing and compare their accent to when they are simply talking.
Cheers for uploading this video i have an exam today and i am really hoping that questions on split brain will come up this is a great video and within the video itsself the stuff with giuseppe archimboldo and the paintings was fantastic so helping in giving me ideas on saying this in essay questions if it does pop up it will be unique and different greatly appreciated !!!!!!!!!!!!!!
@civilsoldier327 I saw this is my Intro Psych class too! It is one of those classic videos that they show. Like you said, it is real. I really like interesting videos like these. Our bodies and brains are so interesting and amazing.
Not his left eye, his left visual field. Both eyes give input to both hemispheres- the left visual field for BOTH eyes goes to the R hemisphere and the R visual field for both eyes goes to the L hemisphere. The way they're presenting stimuli here (tachistoscopically) prevents the eyes from moving (they're fixated on the cross) because it presents info so quickly. In that way, anything to the L of the X goes to the R hemisphere because it's the L visual field (in BOTH eyes) and vice versa.
At 5:40, if his left hemisphere saw music, and right hemisphere saw bell, then why does he select bell with his right hand which is controlled by his left hemisphere which saw music? It doesn't add up to me.
Yeah, damn good sight man. Maybe they asked him to point one image two times, the second time the left side reused the answer from the right side and they showed us just that part. Idk, it's the only possible explanation I can think of.
Also at 3:24 he says "didn't see that" if there was nothing to see, how would he know he didn't see it. Wouldn't he have more realistically said "did you show it yet?" or "I haven't seen anything yet, have you shown it?" or no response at all.
Remember about the edition process, it is possible that the editor simply left out scenes from that moment to improve the flow of the documentary. If you want some "light reading" about Severed Corpus Callosum investigations I highly recommend you check some of this PDF's out pastebin.com/qgdCSxh7
I was with out the courpuscallsum should be blind lol but see out of one eye at a time going down stairs is scarry shit as i lose my sight standing on a chair
this is amazing!! our brain does everything for us! we don't actually feel or smell.Our brain gives us an idea of what pain and a cetain smell is like.I guess there is some truth to the saying that perception is reality
It's true that you can see every thing in your line of sight w/ both eyes, but your brain only pays attention to a certain side w/ each hemisphere (your right hemisphere pays attention to the left side, and your left hemisphere pays attention to the right side). In other words, one half of the brain processes the other half if your field of vision. You can think about it as people paying games split-screen; you only pay attention to your half of the screen even though you can see the whole TV.
Well, it's probably the reason I have seizures. The corpus collosum is basically the wall between the two halves of the brain, so my neurologist explained it like this. Imagine an international airport, with security at the gates. Now, if all the gates have proper security and things are moving through smoothly, then things go well. But if the gates are understaffed, people sneak through or the lines get backed up, and then communication between the two sides of the gate is upset.
Odd that the man with a severed corpus callosum would draw the circle with his left hand, and a square with his right (corresponding with the images on the screen), when the left hand is controlled by his right hemisphere and vice-versa. He must be very practiced.
(continued) So with these unusual surges of information, or not enough information getting through, that's one thing that can cause my seizures. How did I find out? I was told when I was old enough to understand. My parents found out I had seizures when I was about 9 months old, so they probably knew longer than I did. And I had a bit of a difficult time learning to read, though once I did learn, I read pretty fast :D Thanks for your questions, and if you have any more I'll try to answer them
Well, people find humor in different things. I do have a sense of humor, it just doesn't extend to my medical conditions. I'm very sorry to hear about your ulcers and gastritis, and I hope you have received medical attention for them. My prayers are with you. I am glad your girlfriend and yourself could find humor in those things,
Faraz was right 4 years ago with his comment: "i dont understand this part: if BELL goes to his right brain, then he should point to the BELL by his left hand, but why does he point to the BELL by his right hand. His left speaking brain which controls his right hand got MUSIC and NOT BELL. The fact that he may have spoken it out would reinforce pointing to music not to bell, since the right brain does not speak !! right ?" It is either staged or wrongly cut in post processing... AND it's been adapted as wrong as it is into a book I found online: "You ARE NOT SO SMART". I appreciate it if I'm wrong and someone can elighten me.
Perhaps his answer that he thought of bell first due to hearing the music outside from the bells is actually the /real reason/ and not simply an afterthought...?
His brain so both words at the same time, processed both the do part of his brain saw bell and the Say part saw music so he externally connected the 2 things
What is it like only having a thin corpus collosum? How did you find out that was the case? Do you have some of the same effects as full on split brain patients?
One thing that confuses me is the efficacy of the experiments. Presumably when a figure is flashed on the left side or right side of the screen the participant can see it with both eyes? This would mean the image is going to both sides of the participant's brain when the experimenter only wants the image to go to one side at a time.
+sgt7 it only goes to one side of the brain because he focuses on the plus sign in the middle of the screen, not the words or pictures that flash on the sides. So really its only effective as long as he focuses on the middle, otherwise his left hemisphere will be able to recognize the words and give the right answer.
Why are the experiments are so complex? Just blindfold him and give an object to one hand, easily recognizable by touching. Then make him write or draw with the other hand. He wouldn't be able draw anything both ways. Also when he draws two things at the same time, he always starts and finishes at the same time. They are obviously in sync. I can draw like that two. There is something fishy about this.
I wonder if this idea of split processing can explain why sometimes I can drive miles and not remember being aware of any of it. Or reading a page out of a book and not remember anything I read. Or how sometimes when I am dreaming I am taken aback at a sudden surprise which I completely did not anticipate, as if another entirely separate process other than my main consciousness was creating those thoughts.
The one thing I'm confused about is why he has to draw the things he saw in his -left- visual field with his -left- hand, wouldn't it make sense for him to draw them with his right because of the cross-over, but he is specifically instructed to use his left :/ Is this because some info from visual pathways can cross-over without the corpus callosum? Any clarification would be greatly appreciated :)
I'd like to see if the left and right sides of the brain are aware and able to draw the floaters in the eye simultaneously. I have tried at times but it is difficult to eye focus. The things that control coordination, how fine of a control is possible? The brain before and after has to be aware of the eye floaters. It's a fact of life, eye floaters. To not be aware of eye floaters increases chance of "unknown events" in the eye. So his eyes are connected to each hemisphere separately, they can and cannot communicate and he is ambidextrous. Oh, so not having the corpus callosum prevents the instinct of the communication between both hemispheres? The senses are and aren't split, the mind is and isn't split - schizophrenic. The mind is and isn't bicameral. So the man proved plasticity. He had seizures, one "side" was probably really "stressed". That happens, some ailments are related to "electrical storms". Poor guy was struggling before but somehow severing instinctive communication between the hemispheres helped him. That's good. In bad cases, the procedure when explained is a form of biological silencing of the mind. Now actions aren't done in union and the mind isn't working as one. The communication becomes "open" and the personality may waver. There's an actual "joy" of experiencing bicameralism that certain "surgeries" can take away. I meam, people fret about schizophrenia when it's been a feature of human evolution and now there is a "process" that undoes what societally people genuinely do treat as an illness. Left and right handedness become rather literal rather than a "preference". Now the brain truly has to rely on it's "learned knowledge" because one side doesn't have "aptitude" compared to the other. The way the person would behave unconsciously would be half-half, because each eye sees only half - what are they called? Blind spots. I'm sure the people that are suffering from the overload genuinely have better quality of life, i mean that. Their quality of life has to be better because they no longer seize.
I wonder how ambidextrous patients would fare.. And wouldn't it be cool if both brains had the same capacity.. I hear whales and dolphins sleep with half of their brain off. I wonder if that means they might probably be 2 complete conscious personalities in one body
@AlephNeil The thing is that consciously he doesn't know that he saw the word "bell", but he knows that the word "music" was there. So there is a need for the brain to tie the two together. Once the connection is established, he then consciously knows why he pointed at bell. I wonder what he would have pointed at, and what his explanation would have been, if he used his left hand instead.
Write 200-300 words on how what your saw relates to the following questions? 1. What is plasiticity? 2. HOw does plasticity relate to this movie? 3. What did you find most interesting? Use terms to explain. 4. What is lateralization and what evidence of lateralization did you see in the film? Use terms
@zacmienieorg Is it unable to understand language, or just unable to use/produce it? It must be able to understand, because he was reading the words on that side as well... church and phone for instance.
dual core processor
LMFAO
oh my gooood.
That's a good pun you got there.
Most people are Dual Core however this guy lost his internal processor BUS and has to rely on the chipset to unify his being. He became an MCM (Multi-Chip Module). It is still unknown what would happen if the two halfs were completely separated and put in different bodies.
Trenzinho da Alegria NNNNEEEEERRRRRRDDDDDD
give the guy a piano god dammit
I can't play piano or anything using two hands because my fingers won't do it. I move every part of my body independently when I rock climb though
Why?
@@StephJ0seph Let him play different songs at the same time.
You'd never get bored, could play Pictionary with yourself....
Oh fuck yeah.
wrg, no borx nmw, do any nmw s ok
Yess
Hehehehe
@@hanksjim4421 Did you have a stroke or something
These scientists are really enjoying themselves.
got really horny
When you have a dual GPU setup but you're too poor for a GPU bridge.
Dead!
"Left hemisphere is the most important"
-Left hemisphere
“Right hemisphere: 👍
Left hemisphere: 👎”
-Right Hemisphere
@@flargarbason1740 LOLLLLL
I really want to see what happens if someone like him plays a computer game with a mouse and a keyboard.
"Oh, Oh now I get it.... OH oh now again.... Oh OOOOOO"
After all, aren’t video games the reason you get epilepsy treatment? Lol
Anastasia Dunbar That would be photosensitive epilepsy, a completely different type of epilepsy.
he would kill it at fireboy and watergirl lol
He should be able to, so long as he can see the entire screen with both eyes.
When something is flashed on the left side of the screen, it is interpreted in the right side of the brain. He is then told to draw with his left hand because it is also controlled by the right side of the brain. He is not able to simply say the word because language is controlled by the left hemisphere and no there is no way for any information to cross between the two hemispheres without the corpus callosum. Hope this helps :)
The left brain could say what it is thinking out loud and the right brain will understand it. It is not perfect communication but it isn't impossible to communicate. But only the left can do that by means of talking.
@@lost4464 and the right has to do it by means of shitty drawings
@@dane1382 Well it’s only shitty because he’s right handed lol
For those wondering about the accuracy of the experiment done, I just learned about the eye and found it very interesting how it works! So this experiment works great because at the place called the optic chiasm, the fibers from the nasal half (closer to the nose) of EACH retina cross paths. These fibers are carrying vision from the TEMPORAL field of view.(peripherals, or further from the side of the head) (btw, for the right eye, the right field of view is projected to the left half of the retina and vice versa, same for left eye, left field of view projected to the right side).
Now the temporal fibres of the retina (carrying nasal field of view from each eye) do not cross in the optic chiasm. Therefore the LEFT side of the brain receives only fibers from the RIGHT field of view from BOTH eyes. The RIGHT side of the brain only receives fibers from the LEFT field of view from BOTH eyes.
Therefore, as he or anyone else stares at the cross. You can easily see both images with both eyes (it's not just left eye/right eye as some people in the comments seem to be confused about) it's the same side field of view from both eyes (The left and right eye both see the left image with their left fields of view) therefore only transferring that image to the right side of the brain)
Hope this clears up some confusion for you! It sure helped me and I found it fascinating.
Oh wow, thank you for this, it just became a whole lot more fascinating... and creepy
This all is creepy, and fucking fasinating.
amazing
That clears up my question ya thank you
Wow. I read your comment again and again until it actually made sense. Wow is all I'm left with. Always thought it's the right eye to the left hemisphere and vice versa. This is so interesting!
Saw this video today in my psychology class, and I was completely fascinated! This is amazing and it's my 3rd time watching it again :D.
Funny, same here! We watched it today and it was super interesting
Samesies
dude watched this in psychology class today. its pretty damn amazing!
"im just drawing an upside down duck"
draws a giraffe
Great to see insights into SwaggerSouls from MisFits narrations before the golden age
I am learning this now, and I think the brain is seriously amazing. There's just so much that we haven't even discovered yet! Truly amazing.
I figured I was an idiot, but wasn't quite sure. Your reply simply affirms that for me, and so much more makes sense in life now. I wish I had known this earlier. Thank you !
Psych 101 midterm tomorrow, here we go!
lmaoooo same here!
I'm in week 3 of Psych 101 right now
how did you do
The midterm killed him
How did it go?
This is a fantastic video... just amazing.... Still, it is sad that he had to go through this surgery. I wonder if some day these seizures might be treated without the need for such a drastic surgery.
My professor (Cognitive Psychology) showed this video on September 25, 2011, but not the intro, so I am happy I found this so I can go over whatever I missed!
How are you doing now
This is remarkable. The human brain really is fantastic.
Here from psychology class, and this is interesting as heck! Gotta say though halfway through I suddenly went “wAIT THATS HAWKEYE”
Enjoyed watching part of this in Psych 101 today with Professor Weber. I had to see the complete video. Thumbs up! ~Keep Having FUN!
Everyone here from Grey
damn right
Hi tims
Quora
Yep
Naturally
This is unbelievable. You divide the brain in two and whoop! you get two different brains in one person. It's insane.
Alan Alda is the best part of this video
I was wondering if it is Alan Alda. Thank you for the commentary!! (From more than a century ago)
This is awesome ! Thanks Mr.Barone :)
It would have been super cool if we could connect a 3rd part that was good for storing facts and doing math.
That's the purpose of the left brain
Think of it like this. Aspergers' (monotone nerds) are only left and eccentric artists are only right
@@NebulusVoid ayo what? ik u commented this like 5 years ago but that comment through me off. hope u dont still think of ppl with Aspergers like that
I loved this series!.. Too bad they stopped making episodes..
In addition to facial recognition in the RH, his RH is seeing the pictures of faces as a whole, a novel gestalt, whereas his left is able to break down the overlearned components of it (e.g., books, fruit)...gotta love it
Same here! Good luck to everyone with a midterm comin up!
This is so cool! The human brain is such an amazing thing.
This is facinating. The brain is really amazing.
It's funny how he tries to explain to the experimenter (and to himself) why he picked the bell at @5:55. I think it supports the theory that we are only conscious observers of our lives and instead of being the decision makers we are actually trying to figure out why we've done something rather than controlling the body's actions.
excellent observation sir
The experimenter, Professor Gazzaniga actually wrote an interesting work on this, pertaining to free will and our decision making ability within the brain. Sounds like you have already thought of it! Maybe check it out for more information
Barbara J Sure that does sound interesting, I'll have to check it out. Thanks.
If that were so, then why would he try to explain why he picked the bell? Aren't you implying that his consciousness / observer part of himself is the part trying to rationalize his choice? If that part of himself were not in some control of his actions, why would he make the choice to explain his decision in such a way?
To me it seems more like we are sometimes in conscious control of our body but not always, and it can either receive "orders" delivered consciously or run in autopilot mode. It's a pretty interesting thing to consider either way though.
Evan π To be honest I cannot be too sure either. You are right to say that, while I was implying limited control, I do believe the consciousness has some sort of influence on the body, but to a much more minimal extent than we believe. I should have been more careful in my saying, I was probably overly enthusiastic about the video and it's implications.
Why he attempted to explain his action of picking the bell could be a function of the conscious brain attempting to understand it's mind's behaviour and thus learn to control it better in future. This is "introspection" but is not limited to the mind.
Whether his observer part is rationalising his choices or it is making the "choice" is difficult to put a line on at this point. The observer may be merely feeding the long term information back to the brain and the brain becomes the one to make those decisions. At this point, these are very subjective views, I cannot fully trust my observation of myself nor is there data on this.
I will still try to explain how I got to this conclusion though. Our minds, most human minds instinctively assume that any "choices" or decisions made are done at the conscious level without even realising it. On the one hand that could be a correct assumption. On the other hand if we were to say that such an assumption is wrong, as we cannot prove it, we reach another interesting possibility. To do that you must be able to separate the event of decision making from conscious thought you may even consider whether the decision came before or after the conscious thought.
I hope you will be able to make that separation as it will be much easier to see this point of view whether it is right or wrong.
The consciousness should have some purpose even if it is not to make decisions, it can still serve a function by being able to relate cause and effect over a long period, in order to do this however, it must be able to bind all of our senses into one experience. In this sense, you can think of the consciousness as a long term event unscrambler, where it can sort out which action caused what event over weeks, months or even years and store that in our memory. Without it the past and future would look like on big random event that we have no control over. Things like, if I don't remember to check the fridge for milk then I may not have milk readily to drink or if I don't treat this person well, they won't help me in the future. Long term planning is an ability we associate with relatively high intelligence and recently success.
It has been a long time since I've read the article and I cannot find it for the life of me but in it scientists report that when they disabled all sensory input to the brain, they found that the consciousness shut down as opposed to having a consciousness free from sensory input.
Anyway it has been very constructive for me to attempt to answer your questions as I have realised my own carelessness. So thanks for that.
Watched this video in my Psychology class yesterday, very interesting! But there's some part I didn't really get, so I decided to watch it again~
Thanks for this. The my prof what this video but lost it, but fortunately someone is the class found this video and sent it to the class.
Thanks again :)
Fortunately it's just the right visual field that's impaired - so it's about what direction the eye is looking rather than which eye is used. Hope that helps
@AlephNeil
There is an interesting concept that occurs when the right hemisphere becomes more active than the left, it's called the sensed presence. The left hemisphere (or the dominant one) is the linguistic one, it explains the sense of self, while the right hemi. works sort of in the shadow of the left. The two are in phase with each other, but sometiems they might go out of phase. Since there can only be one self within a person, the right hemi. is experienced as an external presence.
i saw this in psychology class in high school, now im reading about it again in college. its nice that its on youtube. thanks. very interesting stuff.
Alan Alda is narrating this video...I wish he narrated my life...
TY ; ) Interesting. I also like the Art of Arcimboldo. Also wanted to mention the left brain hemisphere controls movement on right side of physical body and vice versus. Right brain hemi = Creative while left brain hemi = logical, verbal and analytical skills.
God, Psych is so intriguing!
Hoooooly cramoly! That's incredible!
My brain is getting these weird twinges as I see these observations and live tests! It feels so freaky.
I'm completely incredulous.
@eswyatt @zacmienieorg
[cont.] I bet you will notice a clear difference in their accents, meaning that when they talk they have a thick accent but when they sing you most likely won't be able to detect their accent at all. This is, once again, due to the fact that during singing the right hemisphere is more active than the left.
In people with a cut corpus callosum there still exist some communication b/w the hemispheres, by way of anterior and posterior commissures for example.
If you're asking if the brain is lateralized, we talked about this in my psych class- it could be that one very important function became lateralized then many others followed (most likely language to the L hemisphere), or that there is a processing advantage to having two brains doing two different types of processing on the same task simultaneously (R spatial and L verbal). It could also help keep the different functions from interfering with each other (insulate them). Hope that helps!
Nowadays "phone" would be drawn as a smartphone.
Ok thanks for the answer! :) This stuff is pretty cool!
So this is Gazzaniga and his later research. I saw his older resaerch. His experiments are so interesting
My biology teacher send me here. (:
I think the most remarkable effect here is the way he confabulates an explanation for why he picked 'bell'. Naively, you'd think he would say "actually, I don't know why my left hand pointed to the bell - I wanted to point at the trumpets." I mean, it's just an experiment so he has no incentive to try to 'disingenuously' pretend to be 'normal'.
Shows that what's going on isn't as simple as having "two minds in the same brain".
@eswyatt @zacmienieorg
Well language is primarily localized in the left hemisphere (or the dominant hemisphere, small % of the population has it in the right hemi.), but the right hemisphere is still able to understand simple words. Another interesting property of the right hemisphere is that it's able to understand more complex sentences if they are sang to the person. Notice this, listen to a foreign singer when they are singing and compare their accent to when they are simply talking.
our brains are truly facinating
He knew what he drew but the left brain handles the talking so he couldn't say it.
Fascinating!
Cheers for uploading this video i have an exam today and i am really hoping that questions on split brain will come up this is a great video and within the video itsself the stuff with giuseppe archimboldo and the paintings was fantastic so helping in giving me ideas on saying this in essay questions if it does pop up it will be unique and different greatly appreciated !!!!!!!!!!!!!!
No I'm not, at 1920x1200 I see both.
@civilsoldier327 I saw this is my Intro Psych class too! It is one of those classic videos that they show. Like you said, it is real. I really like interesting videos like these. Our bodies and brains are so interesting and amazing.
Not his left eye, his left visual field. Both eyes give input to both hemispheres- the left visual field for BOTH eyes goes to the R hemisphere and the R visual field for both eyes goes to the L hemisphere. The way they're presenting stimuli here (tachistoscopically) prevents the eyes from moving (they're fixated on the cross) because it presents info so quickly. In that way, anything to the L of the X goes to the R hemisphere because it's the L visual field (in BOTH eyes) and vice versa.
7:17 Rafis, I'm such a big fan!
At 5:40, if his left hemisphere saw music, and right hemisphere saw bell, then why does he select bell with his right hand which is controlled by his left hemisphere which saw music? It doesn't add up to me.
Yeah, damn good sight man. Maybe they asked him to point one image two times, the second time the left side reused the answer from the right side and they showed us just that part. Idk, it's the only possible explanation I can think of.
Both have control over both sides, one is just much more prominent.
Also at 3:24 he says "didn't see that" if there was nothing to see, how would he know he didn't see it. Wouldn't he have more realistically said "did you show it yet?" or "I haven't seen anything yet, have you shown it?" or no response at all.
He can see him pushing the button to turn it to the next one...
Remember about the edition process, it is possible that the editor simply left out scenes from that moment to improve the flow of the documentary.
If you want some "light reading" about Severed Corpus Callosum investigations I highly recommend you check some of this PDF's out pastebin.com/qgdCSxh7
Both visual and motor pathways cross over, so what he sees in his left visual field goes to his right brain and then out his left hand.
I do have a quick question, though. If this guy were to close his left eye, would he still be able to recognize faces?
Yes. The image from the right eye would still be processed as 2 halves (right and left).
I was with out the courpuscallsum should be blind lol but see out of one eye at a time going down stairs is scarry shit as i lose my sight standing on a chair
They actually experimented on this already.
czcams.com/video/u9u6cQYcOHw/video.html
I have facial recognition disorder
Honestly I rather stay an epileptic than have my brain fucked with...
@dirtyharree
actually, the heart has two pairs of chambers.
Psych lecture! Very interesting!
I am just sitting here and wondering if I could play chess with myslef or have conversations with myself
this is amazing!! our brain does everything for us! we don't actually feel or smell.Our brain gives us an idea of what pain and a cetain smell is like.I guess there is some truth to the saying that perception is reality
Helpful video. It was the guy from M.A.S.H., that Alan guy.
imagine how good he would be at the piano
Bilateral symmetry. Same thing that makes you have two eyes and such.
What year was this made?
It's true that you can see every thing in your line of sight w/ both eyes, but your brain only pays attention to a certain side w/ each hemisphere (your right hemisphere pays attention to the left side, and your left hemisphere pays attention to the right side). In other words, one half of the brain processes the other half if your field of vision. You can think about it as people paying games split-screen; you only pay attention to your half of the screen even though you can see the whole TV.
Dr. Gazad-WHOOOOOOO
Well, it's probably the reason I have seizures. The corpus collosum is basically the wall between the two halves of the brain, so my neurologist explained it like this. Imagine an international airport, with security at the gates. Now, if all the gates have proper security and things are moving through smoothly, then things go well. But if the gates are understaffed, people sneak through or the lines get backed up, and then communication between the two sides of the gate is upset.
this video is mind blown
Odd that the man with a severed corpus callosum would draw the circle with his left hand, and a square with his right (corresponding with the images on the screen), when the left hand is controlled by his right hemisphere and vice-versa. He must be very practiced.
(continued) So with these unusual surges of information, or not enough information getting through, that's one thing that can cause my seizures. How did I find out? I was told when I was old enough to understand. My parents found out I had seizures when I was about 9 months old, so they probably knew longer than I did. And I had a bit of a difficult time learning to read, though once I did learn, I read pretty fast :D
Thanks for your questions, and if you have any more I'll try to answer them
Well, people find humor in different things. I do have a sense of humor, it just doesn't extend to my medical conditions. I'm very sorry to hear about your ulcers and gastritis, and I hope you have received medical attention for them. My prayers are with you. I am glad your girlfriend and yourself could find humor in those things,
does anyone know when joe originally had his procedure? i'm having a hard time finding facts on him!
Ah I see. Perhaps the cerebellum helps to keep any inharmonic duality at bay a bit too.
Faraz was right 4 years ago with his comment:
"i dont understand this part: if BELL goes to his right brain, then he should point to the BELL by his left hand, but why does he point to the BELL by his right hand. His left speaking brain which controls his right hand got MUSIC and NOT BELL. The fact that he may have spoken it out would reinforce pointing to music not to bell, since the right brain does not speak !! right ?"
It is either staged or wrongly cut in post processing... AND it's been adapted as wrong as it is into a book I found online: "You ARE NOT SO SMART".
I appreciate it if I'm wrong and someone can elighten me.
Perhaps his answer that he thought of bell first due to hearing the music outside from the bells is actually the /real reason/ and not simply an afterthought...?
His brain so both words at the same time, processed both the do part of his brain saw bell and the Say part saw music so he externally connected the 2 things
that dual core brain...
What is it like only having a thin corpus collosum? How did you find out that was the case? Do you have some of the same effects as full on split brain patients?
Scroll up! You're missing the video!
Rosie Baez lol
@1RadicalOne
The heart is made up of four cavities that holds the blood before the blood gets pumped out.
ohh thankss ... i can do my hw too !
wtf is a toad stool????
a mushroom
@eswyatt
You're welcome :)
Anyone remember the name of this TV series?
One thing that confuses me is the efficacy of the experiments. Presumably when a figure is flashed on the left side or right side of the screen the participant can see it with both eyes? This would mean the image is going to both sides of the participant's brain when the experimenter only wants the image to go to one side at a time.
+sgt7 it only goes to one side of the brain because he focuses on the plus sign in the middle of the screen, not the words or pictures that flash on the sides. So really its only effective as long as he focuses on the middle, otherwise his left hemisphere will be able to recognize the words and give the right answer.
+Michael Nelson Ah yes. I understand now. Thanks.
To quote "Who is you? You is two."
Why are the experiments are so complex? Just blindfold him and give an object to one hand, easily recognizable by touching. Then make him write or draw with the other hand. He wouldn't be able draw anything both ways.
Also when he draws two things at the same time, he always starts and finishes at the same time. They are obviously in sync. I can draw like that two. There is something fishy about this.
I wonder if this idea of split processing can explain why sometimes I can drive miles and not remember being aware of any of it. Or reading a page out of a book and not remember anything I read. Or how sometimes when I am dreaming I am taken aback at a sudden surprise which I completely did not anticipate, as if another entirely separate process other than my main consciousness was creating those thoughts.
That thing about reading a page and forgetting about it got me thinking
The one thing I'm confused about is why he has to draw the things he saw in his -left- visual field with his -left- hand, wouldn't it make sense for him to draw them with his right because of the cross-over, but he is specifically instructed to use his left :/ Is this because some info from visual pathways can cross-over without the corpus callosum? Any clarification would be greatly appreciated :)
I'd like to see if the left and right sides of the brain are aware and able to draw the floaters in the eye simultaneously. I have tried at times but it is difficult to eye focus. The things that control coordination, how fine of a control is possible? The brain before and after has to be aware of the eye floaters. It's a fact of life, eye floaters. To not be aware of eye floaters increases chance of "unknown events" in the eye. So his eyes are connected to each hemisphere separately, they can and cannot communicate and he is ambidextrous. Oh, so not having the corpus callosum prevents the instinct of the communication between both hemispheres? The senses are and aren't split, the mind is and isn't split - schizophrenic. The mind is and isn't bicameral. So the man proved plasticity. He had seizures, one "side" was probably really "stressed". That happens, some ailments are related to "electrical storms". Poor guy was struggling before but somehow severing instinctive communication between the hemispheres helped him. That's good. In bad cases, the procedure when explained is a form of biological silencing of the mind. Now actions aren't done in union and the mind isn't working as one. The communication becomes "open" and the personality may waver. There's an actual "joy" of experiencing bicameralism that certain "surgeries" can take away. I meam, people fret about schizophrenia when it's been a feature of human evolution and now there is a "process" that undoes what societally people genuinely do treat as an illness.
Left and right handedness become rather literal rather than a "preference". Now the brain truly has to rely on it's "learned knowledge" because one side doesn't have "aptitude" compared to the other. The way the person would behave unconsciously would be half-half, because each eye sees only half - what are they called? Blind spots. I'm sure the people that are suffering from the overload genuinely have better quality of life, i mean that. Their quality of life has to be better because they no longer seize.
I wonder how ambidextrous patients would fare.. And wouldn't it be cool if both brains had the same capacity.. I hear whales and dolphins sleep with half of their brain off. I wonder if that means they might probably be 2 complete conscious personalities in one body
damn that's a good way to think about it...
@AlephNeil
The thing is that consciously he doesn't know that he saw the word "bell", but he knows that the word "music" was there. So there is a need for the brain to tie the two together. Once the connection is established, he then consciously knows why he pointed at bell. I wonder what he would have pointed at, and what his explanation would have been, if he used his left hand instead.
@DJMedlee It is the guy from M.A.S.H. His name is Alan Alda.
He has the highest score in 2 cars
Write 200-300 words on how what your saw relates to the following questions?
1. What is plasiticity?
2. HOw does plasticity relate to this movie?
3. What did you find most interesting? Use terms to explain.
4. What is lateralization and what evidence of lateralization did you see in the film? Use terms
I wouldn't wanna be without my right hemisphere that's where the real real action is ..
@zacmienieorg Is it unable to understand language, or just unable to use/produce it? It must be able to understand, because he was reading the words on that side as well... church and phone for instance.