Animal like vs. disease state

I have often lately pondered on the idea of what is the animal like state, and the disease state. It seems to me that when in the heat of there vices the two look very very similar. But what is the difference. To me it seems that the difference is at the root of what causes them. For the disease like state, the cause could be an illness or a brain problem. This in my opinion is not the fault of the person. However the question i suppose i pose in this blog post is, is the lack of upbringing that thus causes the animal like state the fault of the person, or people who raised the said person? It is my personal belief that it is not the fault of the infected person.