What chemical corresponds to the mental picture of a cat? Sure, they are heavily interrelated. They are vastly different models of the same thing. While we can

What chemical corresponds to the mental picture of a cat? Sure, they are heavily interrelated. They are vastly different models of the same thing. While we can understand some processes simply by chemistry, we don't get too far with that when trying to understand social behavior. On the other hand psychology can model processes and behaviors on another level. Sometimes they overlap well but far too seldom. They will probably not converge well in our lifetime because we are really slow in understanding of complex interrelated systems and cannot make all the experiments we need to quickly advance scientifically.