What Claims Have Been Made about the Differences in Psychological Functions Performed by the Left Versus Right Hemispheres of the Brain?

Is there any validity to the popular notion of a left-brained versus a right-brained person? The sterotypical left-brained person is logical and linear in his/her thinking, while the right-brained person is creative, holistic, , and able to see connections between things. Regardless of whether people with these stereotyped personalities really exist, and really are left-brain-dominant or right-brain-dominant, what does neuropsychology tell us about the functions of the left versus the right hemisphere? Does this evidence have anything to do with these stereotypes? …