This week in psychology we learned the coolest thing I've learned all year. We learned about the different hemispheres and how they interact with each other. And here comes the kicker: the two hemispheres in your brain are connected by the corpus collosum.
Now don't get too excited yet. But hold on to your seat because this is mind-blowing.
Many years ago, doctors tried an experiment to try to stop people from having seizures. Through their investigating, they came to a conclusion that if you remove one's corpus collosum, he or she will cease to have seizures. And they were right! But there is one thing they did not account for.
It turns out that the same thing that can be removed to stop seizures is also what allows the two hemispheres in your brain to communicate.
To understand this better, let's look at an example. Let's take a standard right-handed person who has his speech controlled in his left hemisphere and movement of his left hand controlled in his right hemisphere. What if you were to remove his corpus collosum (and blindfold him because sight in each eye goes to both hemispheres - that's another whole story within itself)? Well, as you can expect, he would not be able to transfer information from one hemisphere to another. But what really are the ramifications of this?
Glad I asked because I know someone who can give a great answer, and his name is Isaac Graber. Let's take our example of a blindfolded, right-handed man and put some playdough in his left hand. Well in that case he'd be able to tell you that he is holding playdough since both speech and control of his left hand are in his left hemisphere. But what if you put that playdough in his right hand. Well, he'd be able to draw the word playdough with his left hand had you asked him what he was holding, but since speech is in his left hemisphere, and that sensory info of what he was holding went to his right hemisphere, he would not be able to tell you what he was holding.
This concept blew my mind that you can communicate one way but not another if you are lacking a corpus colossum. Any volunteers in class willing to have your corpus collosum removed so we can mess with you? Just let me know.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.