Executive functioning has been linked to development of the brain's area. cerebellum prefrontal cortex midbrain hindbrain

Executive function are cognitive skills that help you control your thoughts into actions, as well as your emotions. Specifically, it includes mental skills such as attention to tasks at hand, time management, multi-tasking, and other mental processes that help you decide on how you behave in front of others. The part of the brain that handles this information is the pre-fontal lobe.

What is the question? if you were looking to design a method of separating something, you can separate this compound by putting both in water and allowing the water to dissolve the sugar. then pour it into another beaker and evaporate it then boom! salt and sugar : ) 

This is the most closely resembles the model.