Most of cutting made to the corpus callosum are
because damage to it might now be allowing the patients to match the concepts
they see in one eye with the concepts in the other half of the brain. This
implication might cause a trouble coordinating their hands preventing them from
matching sensations on one hand with movement on the other because the
information doesn’t get to where its needed.
Cuttings to the corpus callosum might also be to
treat severe epilepsy, which is a condition characterized by repeated episodes
of excessive synchronized neural activity which results from a mutation in a
gene controlling the HABA receptor, from trauma or infection in the brain,
brain tumors, or exposure to toxic substances.
The advantages and good benefits of cutting the
corpus callosum is that when a person experiences seizure symptoms, the brain
will have much more difficulty sending messages between the hemispheres, this
means that the seizure will only occur in one side of the brain and it will be
less severe.
Most of the time this is a well-developed surgery
with little implications. It is still possible to experience risks such as
bleeding, swelling, or an infection during the surgery. Other possible compilations
might include mutism (which is the lack of speech), weakness of an extremity,
or lack of bladder control. Other rare
risk children might experience is the change in behavior.
People that have undergone surgery to the corpus
callosum are referred to as split-brain people; they still maintain their
intellect, motivation, and walk without difficulty. An example of what a person
with a split-brain might experience is if he or she is touching a mysterious
object with only the left hand, while also receiving no visual cues in the
right visual field, the patient cannot say out loud the name of that which the
right side of the brain is touching. This is because (1) each cerebral
hemisphere of the primary somatosensory cortex only contains a tactile representation
of the opposite (contralateral) side of the body; (2) the speech-control center
is on the left side of the brain; (3) the communication between the two sides
of the brain is inhibited.
This video shows at first how the brain functions
when you cut the nerves that connect both hemispheres, and they also show
behavioral experiments with an adult that went through this surgery, how the
brain reacts with this condition.
I think that this is such a fascinating thing that they could do in the scientific community in order to help out a person suffering from severe epilepsy attacks and by having more advances in technology might improve in the future to come. I actually found the video very interesting oh how they split his right and left hemisphere in order to help him with his severe epilepsy, and Joe said that over time he just had to adapt to it that he felt no different than he did before. Also how they were preforming experiments on Joe and finding out once he was fixated on a point everything to the right was send to the left side of the brain and he was able to state was it was but once something was shown on the left side of the point he was not able to name what it was, but then was able to draw out what he had seen. When asked why he drew that he said he did not know but something in his brain was telling him he had seen it.
ReplyDeleteThe experiment in the video almost seems like it's magic! It's unbelievable how our brain works and how he cannot see the picture but he can draw it with his left hand. This also shows how our unconscious functions and proves that we have one. I've heard people say that we don't have one because you can't see anywhere in our brain but there's so many things left to learn about our brains that anything could be possible proven or unproven in the future.
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