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i think that we would be entirely impulse based like
Actually, we are. Rather, we WOULD be, if it werent' for our Frontal Association Area.
The Frontal Association Area is the front part of the human brain, that controls personality, associations, and complex thought. It is said that the intelligence of a species lies in how large this part of their brain is. Ours is (I think; correct me if I'm wrong) the largest of all animals. We are thus separated from animalistic behavior.
A great example of how important the frontal association area is, would be the case of Phineas Gage, a railroad worker in the 1840's. While packing dynamite into a hole (I assume to clear some rock) with a long, thin steel rod, the dynamite accidentally went off. The rod was shot straight up through his chin, and out the top of his skull, clear through He survived because the parts of his brain that control bodily functions (breathing, movement, physical control) were still intact; however, the connection between his frontal association area and the rest of his brain was severed.
The injury resulted in him becoming animalistic in his actions. A man who used to be friendly, polite, etc. now swore constantly, undressed in inappropriate places, urinated anywhere in public, and had temper tantrums.
Reference: 'Psychology And You' 2nd Edition (textbook)
So as you can see, what you attribute to the soul IS, in fact, part of our brai
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