The Brain
The human brain appears to be two separate brains glued together. When the corpus callosum is cut, people wonder why we have two hemispheres in the first place.
Many scientists believe that human symmetry is linked withy our “evolutionary history”. They believe that there was one common ancestor that caused symmetry in most living organisms. Other truths hold that symmetry is imperative for survival. With muscles and bones on each side of the body, animals and people can move more efficiently and quickly. Symmetry also allows for one side of the body to pick up the slack if the other is weak. Many prey animals use the different sides of their brain to do different things. For example, a chicken uses the left part of their brain to look for food and the right to look for predators. They can do this because each hemisphere controls one side of the body.
There are other indications of why we have two hemispheres. Many people prefer to use one side of their body over the other and are considered left brained if they are more logical and right brained if they are more emotional.
Even though the brain has two seemingly identical hemispheres, each half is not responsible for the same functions. The way the two halves are connected to each other is also different in different regions of the brain. The front halves have looser connections between them than the back, because the front is responsible for thought and ideas and the back is in control of sight and hearing. These functions call that the two sides work together, so the connections between them must be stronger. The brain’s two sides work very well together. For example, the left side of the brain interprets sounds and words in a conversation, and the right side interprets the way the sounds and words were presented. This is why it is so remarkable that that a young child can survive with only one hemisphere. An adult cannot because they cannot break the habit of using both sides of their brain and a child can. Our symmetry seems to be at the very core of our existence.
Many scientists believe that human symmetry is linked withy our “evolutionary history”. They believe that there was one common ancestor that caused symmetry in most living organisms. Other truths hold that symmetry is imperative for survival. With muscles and bones on each side of the body, animals and people can move more efficiently and quickly. Symmetry also allows for one side of the body to pick up the slack if the other is weak. Many prey animals use the different sides of their brain to do different things. For example, a chicken uses the left part of their brain to look for food and the right to look for predators. They can do this because each hemisphere controls one side of the body.
There are other indications of why we have two hemispheres. Many people prefer to use one side of their body over the other and are considered left brained if they are more logical and right brained if they are more emotional.
Even though the brain has two seemingly identical hemispheres, each half is not responsible for the same functions. The way the two halves are connected to each other is also different in different regions of the brain. The front halves have looser connections between them than the back, because the front is responsible for thought and ideas and the back is in control of sight and hearing. These functions call that the two sides work together, so the connections between them must be stronger. The brain’s two sides work very well together. For example, the left side of the brain interprets sounds and words in a conversation, and the right side interprets the way the sounds and words were presented. This is why it is so remarkable that that a young child can survive with only one hemisphere. An adult cannot because they cannot break the habit of using both sides of their brain and a child can. Our symmetry seems to be at the very core of our existence.
http://http://discovermagazine.com/2009/may/15-big-similarities-and-quirky-differences-between-our-left-and-right-brains
I thought this article was very interesting and thought is was cool about how well the two hemispheres can work together. The only thing that I didn’t agree with was the whole evolutionary history thing. How can scientists look at something as complex as the human brain and not realize that it was designed?
posted by Amanda @ 7:35 AM
3 Comments:
I totally agree with that the evolutionary part is false. I don't understand how evolutionists and other atheists don't believe in God after viewing something as complex and awesome as the brain truly is. You would think that something like that would convince you for sure. I like the article a lot. It was simple, but powerful. It's amazing how the body works together, just like the Body of Christ.
Think that it is interesting that even though the brain may look symmetrical in appearance the two hemispheres have different functions. I also think that it is amazing that in a child they can remove half of the brain and the child will still function normally because the half that is left will make up for the half that is gone. And how in adults it cannot be done because the connections that exist are so strong and if they are severed the one half cannot make up for the other half. The brain is an amazing thing and the way the two hemispheres work together to make things work smoothly is fascinating.
I agree, the brain should be able to convince anyone there is a God. I mean the whole body is truely amazing, but the brain alone, one would think, ought to be able to convince people there is a God; It most certainly did not just happen to all work together in harmony and efficientcy! How blind people can be in our sinful world; sometimes it seems like they'll believe anything but the truth!
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