You're right and you're wrong. There has been an oversimplification and a false dichotomy regarding what side of the brain processes what, and how. However, both sides of the brain DO have very different cognitive functions and an individuals relative strength or weakness, or the absence or presence of these functions on either side, has a HUGE impact on cognition, emotion and personality. If you doubt that this is true, compare and contrast a pt with a right hemisphere CVA and a left hemisphere CVA.